Articles | Volume 18, issue 19
Biogeosciences, 18, 5513–5538, 2021
https://doi.org/10.5194/bg-18-5513-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Biogeosciences, 18, 5513–5538, 2021
https://doi.org/10.5194/bg-18-5513-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
12 Oct 2021
Research article
| 12 Oct 2021
Particulate organic carbon dynamics in the Gulf of Lion shelf (NW Mediterranean) using a coupled hydrodynamic–biogeochemical model
Gaël Many et al.
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Marine Herrmann, Thai To Duy, and Claude Estournel
EGUsphere, https://doi.org/10.5194/egusphere-2022-1443, https://doi.org/10.5194/egusphere-2022-1443, 2023
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The South Vietnam Upwelling develops in summer along and off the Vietnamese coast. It brings cold and nutrient-rich waters to the surface, allowing photosynthesis essential to marine ecosystems and fishing resources. We show here that its daily variations are mainly due to the wind, thus predictable, in the southern shelf and coast regions. However, they are more chaotic in the offshore area, and especially in the northern area, due to the influence of eddies of a highly chaotic nature.
Joelle Habib, Caroline Ulses, Claude Estournel, Milad Fakhri, Patrick Marsaleix, Mireille Pujo-Pay, Pascal Conan, Marine Fourrier, Laurent Coppola, Alexandre Mignot, and Laurent Mortier
Biogeosciences Discuss., https://doi.org/10.5194/bg-2022-216, https://doi.org/10.5194/bg-2022-216, 2022
Preprint under review for BG
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The Rhodes Gyre, located in the eastern Mediterranean Sea, is the main Levantine Intermediate Water formation site. In this study, we use a 3D physical-biogeochemical model to investigate the seasonal and interannual variability of organic carbon dynamics in the gyre. Our results show its autotrophic nature and its high interannual variability with enhanced primary production, downward and onward exports to the surrounding regions during years marked by intense heat losses and deep mixed layers.
Caroline Ulses, Claude Estournel, Patrick Marsaleix, Karline Soetaert, Marine Fourrier, Laurent Coppola, Dominique Lefèvre, Franck Touratier, Catherine Goyet, Véronique Guglielmi, Fayçal Kessouri, Pierre Testor, and Xavier Durrieu de Madron
Biogeosciences Discuss., https://doi.org/10.5194/bg-2022-219, https://doi.org/10.5194/bg-2022-219, 2022
Preprint under review for BG
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Deep convection plays a key role in the circulation, thermodynamics and biogeochemical cycles in the Mediterranean Sea, considered as a hotspot of biodiversity and climate change. In this study, we investigate the seasonal cycle and annual budget of dissolved inorganic carbon in the deep convection area of the northwestern Mediterranean Sea.
Thai To Duy, Marine Herrmann, Claude Estournel, Patrick Marsaleix, Thomas Duhaut, Long Bui Hong, and Ngoc Trinh Bich
Ocean Sci., 18, 1131–1161, https://doi.org/10.5194/os-18-1131-2022, https://doi.org/10.5194/os-18-1131-2022, 2022
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The South Vietnam Upwelling develops in the coastal and offshore regions of the southwestern South China Sea under the influence of summer monsoon winds. Cold, nutrient-rich waters rise to the surface, where photosynthesis occurs and is essential for fishing activity. We have developed a very high-resolution model to better understand the factors that drive the variability of this upwelling at different scales: daily chronology to summer mean of wind and mesoscale to regional circulation.
Alice Carret, Florence Birol, Claude Estournel, and Bruno Zakardjian
Ocean Sci. Discuss., https://doi.org/10.5194/os-2022-8, https://doi.org/10.5194/os-2022-8, 2022
Preprint under review for OS
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This study presents a methodology to investigate the ability of satellite altimetry to observe a coastal current, the Northern Current, in the NW Mediterannean Sea. We use a high resolution regional model, validated with HF radars and in situ data. The model is then used as a reference and compared to 3 different missions (Jason 2, SARAL and Sentinel-3), studying both the surface velocity and the sea surface height signature of the current. The performance of the 3 missions was also compared.
Caroline Ulses, Claude Estournel, Marine Fourrier, Laurent Coppola, Fayçal Kessouri, Dominique Lefèvre, and Patrick Marsaleix
Biogeosciences, 18, 937–960, https://doi.org/10.5194/bg-18-937-2021, https://doi.org/10.5194/bg-18-937-2021, 2021
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We analyse the seasonal cycle of O2 and estimate an annual O2 budget in the north-western Mediterranean deep-convection region, using a numerical model. We show that this region acts as a large sink of atmospheric O2 and as a major source of O2 for the western Mediterranean Sea. The decrease in the deep convection intensity predicted in recent projections may have important consequences on the overall uptake of O2 in the Mediterranean Sea and on the O2 exchanges with the Atlantic Ocean.
Related subject area
Biogeochemistry: Coastal Ocean
Significant nutrient consumption in the dark subsurface layer during a diatom bloom: a case study on Funka Bay, Hokkaido, Japan
Contrasts in dissolved, particulate, and sedimentary organic carbon from the Kolyma River to the East Siberian Shelf
Sediment quality assessment in an industrialized Greek coastal marine area (western Saronikos Gulf)
Limits and CO2 equilibration of near-coast alkalinity enhancement
Role of phosphorus in the seasonal deoxygenation of the East China Sea shelf
Interannual variability of the initiation of the phytoplankton growing period in two French coastal ecosystems
Spatio-temporal distribution, photoreactivity and environmental control of dissolved organic matter in the sea-surface microlayer of the eastern marginal seas of China
Metabolic alkalinity release from large port facilities (Hamburg, Germany) and impact on coastal carbon storage
Temporal and spatial evolution of bottom-water hypoxia in the Estuary and Gulf of St. Lawrence
A Numerical reassessment of the Gulf of Mexico carbon system in connection with the Mississippi River and global ocean
Observed and projected global warming pressure on coastal hypoxia
Benthic alkalinity fluxes from coastal sediments of the Baltic and North seas: comparing approaches and identifying knowledge gaps
Investigating the effect of nickel concentration on phytoplankton growth to assess potential side-effects of ocean alkalinity enhancement
Unprecedented summer hypoxia in southern Cape Cod Bay: an ecological response to regional climate change?
Interannual variabilities, long-term trends, and regulating factors of low-oxygen conditions in the coastal waters off Hong Kong
Causes of the extensive hypoxia in the Gulf of Riga in 2018
Trawling effects on biogeochemical processes are mediated by fauna in high-energy biogenic-reef-inhabited coastal sediments
Drought recorded by Ba∕Ca in coastal benthic foraminifera
A nitrate budget of the Bohai Sea based on an isotope mass balance model
Suspended particulate matter drives the spatial segregation of nitrogen turnover along the hyper-turbid Ems estuary
Marine CO2 system variability along the northeast Pacific Inside Passage determined from an Alaskan ferry
Reviews and syntheses: Spatial and temporal patterns in seagrass metabolic fluxes
Mixed layer depth dominates over upwelling in regulating the seasonality of ecosystem functioning in the Peruvian upwelling system
Temporal dynamics of surface ocean carbonate chemistry in response to natural and simulated upwelling events during the 2017 coastal El Niño near Callao, Peru
Pelagic primary production in the coastal Mediterranean Sea: variability, trends, and contribution to basin-scale budgets
Contrasting patterns of carbon cycling and dissolved organic matter processing in two phytoplankton–bacteria communities
Biophysical controls on seasonal changes in the structure, growth, and grazing of the size-fractionated phytoplankton community in the northern South China Sea
Seasonal dispersal of fjord meltwaters as an important source of iron and manganese to coastal Antarctic phytoplankton
Modeling cyanobacteria life cycle dynamics and historical nitrogen fixation in the Baltic Proper
Simultaneous assessment of oxygen- and nitrate-based net community production in a temperate shelf sea from a single ocean glider
Reviews and syntheses: Physical and biogeochemical processes associated with upwelling in the Indian Ocean
Technical note: Novel triple O2 sensor aquatic eddy covariance instrument with improved time shift correction reveals central role of microphytobenthos for carbon cycling in coral reef sands
Long-term spatiotemporal variations in and expansion of low-oxygen conditions in the Pearl River estuary: a study synthesizing observations during 1976–2017
Fe-binding organic ligands in coastal and frontal regions of the western Antarctic Peninsula
Temporal variability and driving factors of the carbonate system in the Aransas Ship Channel, TX, USA: a time series study
Nitrogen loss processes in response to upwelling in a Peruvian coastal setting dominated by denitrification – a mesocosm approach
Retracing hypoxia in Eckernförde Bight (Baltic Sea)
The impact of the freeze–melt cycle of land-fast ice on the distribution of dissolved organic matter in the Laptev and East Siberian seas (Siberian Arctic)
The fate of upwelled nitrate off Peru shaped by submesoscale filaments and fronts
Coastal processes modify projections of some climate-driven stressors in the California Current System
Upwelling-induced trace gas dynamics in the Baltic Sea inferred from 8 years of autonomous measurements on a ship of opportunity
Destruction and reinstatement of coastal hypoxia in the South China Sea off the Pearl River estuary
Hypersaline tidal flats as important “blue carbon” systems: a case study from three ecosystems
Drivers and impact of the seasonal variability of the organic carbon offshore transport in the Canary upwelling system
Organic carbon densities and accumulation rates in surface sediments of the North Sea and Skagerrak
An observation-based evaluation and ranking of historical Earth system model simulations in the northwest North Atlantic Ocean
Characterizing the origins of dissolved organic carbon in coastal seawater using stable carbon isotope and light absorption characteristics
Warming and ocean acidification may decrease estuarine dissolved organic carbon export to the ocean
Chemical characterization of the Punta de Fuencaliente CO2-enriched system (La Palma, NE Atlantic Ocean): a new natural laboratory for ocean acidification studies
The seasonal phases of an Arctic lagoon reveal the discontinuities of pH variability and CO2 flux at the air–sea interface
Sachi Umezawa, Manami Tozawa, Yuichi Nosaka, Daiki Nomura, Hiroji Onishi, Hiroto Abe, Tetsuya Takatsu, and Atsushi Ooki
Biogeosciences, 20, 421–438, https://doi.org/10.5194/bg-20-421-2023, https://doi.org/10.5194/bg-20-421-2023, 2023
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We conducted repetitive observations in Funka Bay, Japan, during the spring bloom 2019. We found nutrient concentration decreases in the dark subsurface layer during the bloom. Incubation experiments confirmed that diatoms could consume nutrients at a substantial rate, even in darkness. We concluded that the nutrient reduction was mainly caused by nutrient consumption by diatoms in the dark.
Dirk Jong, Lisa Bröder, Tommaso Tesi, Kirsi H. Keskitalo, Nikita Zimov, Anna Davydova, Philip Pika, Negar Haghipour, Timothy I. Eglinton, and Jorien E. Vonk
Biogeosciences, 20, 271–294, https://doi.org/10.5194/bg-20-271-2023, https://doi.org/10.5194/bg-20-271-2023, 2023
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With this study, we want to highlight the importance of studying both land and ocean together, and water and sediment together, as these systems function as a continuum, and determine how organic carbon derived from permafrost is broken down and its effect on global warming. Although on the one hand it appears that organic carbon is removed from sediments along the pathway of transport from river to ocean, it also appears to remain relatively ‘fresh’, despite this removal and its very old age.
Georgia Filippi, Manos Dassenakis, Vasiliki Paraskevopoulou, and Konstantinos Lazogiannis
Biogeosciences, 20, 163–189, https://doi.org/10.5194/bg-20-163-2023, https://doi.org/10.5194/bg-20-163-2023, 2023
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The pollution of the western Saronikos Gulf from heavy metals has been examined through the study of marine sediment cores. It is a deep gulf (maximum depth 440 m) near Athens affected by industrial and volcanic activity. Eight cores were received from various stations and depths and analysed for their heavy metal content and geochemical characteristics. The results were evaluated by using statistical methods, environmental indicators and comparisons with old data.
Jing He and Michael D. Tyka
Biogeosciences, 20, 27–43, https://doi.org/10.5194/bg-20-27-2023, https://doi.org/10.5194/bg-20-27-2023, 2023
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Recently, ocean alkalinity enhancement (OAE) has gained interest as a scalable way to address the urgent need for negative CO2 emissions. In this paper we examine the capacity of different coastlines to tolerate alkalinity enhancement and the time scale of CO2 uptake following the addition of a given quantity of alkalinity. The results suggest that OAE has significant potential and identify specific favorable and unfavorable coastlines for its deployment.
Arnaud Laurent, Haiyan Zhang, and Katja Fennel
Biogeosciences, 19, 5893–5910, https://doi.org/10.5194/bg-19-5893-2022, https://doi.org/10.5194/bg-19-5893-2022, 2022
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The Changjiang is the main terrestrial source of nutrients to the East China Sea (ECS). Nutrient delivery to the ECS has been increasing since the 1960s, resulting in low oxygen (hypoxia) during phytoplankton decomposition in summer. River phosphorus (P) has increased less than nitrogen, and therefore, despite the large nutrient delivery, phytoplankton growth can be limited by the lack of P. Here, we investigate this link between P limitation, phytoplankton production/decomposition, and hypoxia.
Coline Poppeschi, Guillaume Charria, Anne Daniel, Romaric Verney, Peggy Rimmelin-Maury, Michaël Retho, Eric Goberville, Emilie Grossteffan, and Martin Plus
Biogeosciences, 19, 5667–5687, https://doi.org/10.5194/bg-19-5667-2022, https://doi.org/10.5194/bg-19-5667-2022, 2022
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This paper aims to understand interannual changes in the initiation of the phytoplankton growing period (IPGP) in the current context of global climate changes over the last 20 years. An important variability in the timing of the IPGP is observed with a trend towards a later IPGP during this last decade. The role and the impact of extreme events (cold spells, floods, and wind burst) on the IPGP is also detailed.
Lin Yang, Jing Zhang, Anja Engel, and Gui-Peng Yang
Biogeosciences, 19, 5251–5268, https://doi.org/10.5194/bg-19-5251-2022, https://doi.org/10.5194/bg-19-5251-2022, 2022
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Enrichment factors of dissolved organic matter (DOM) in the eastern marginal seas of China exhibited a significant spatio-temporal variation. Photochemical and enrichment processes co-regulated DOM enrichment in the sea-surface microlayer (SML). Autochthonous DOM was more frequently enriched in the SML than terrestrial DOM. DOM in the sub-surface water exhibited higher aromaticity than that in the SML.
Mona Norbisrath, Johannes Pätsch, Kirstin Dähnke, Tina Sanders, Gesa Schulz, Justus E. E. van Beusekom, and Helmuth Thomas
Biogeosciences, 19, 5151–5165, https://doi.org/10.5194/bg-19-5151-2022, https://doi.org/10.5194/bg-19-5151-2022, 2022
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Total alkalinity (TA) regulates the oceanic storage capacity of atmospheric CO2. TA is also metabolically generated in estuaries and influences coastal carbon storage through its inflows. We used water samples and identified the Hamburg port area as the one with highest TA generation. Of the overall riverine TA load, 14 % is generated within the estuary. Using a biogeochemical model, we estimated potential effects on the coastal carbon storage under possible anthropogenic and climate changes.
Mathilde Jutras, Alfonso Mucci, Gwenaëlle Chaillou, William A. Nesbitt, and Douglas W. R. Wallace
EGUsphere, https://doi.org/10.5194/egusphere-2022-1090, https://doi.org/10.5194/egusphere-2022-1090, 2022
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The deep waters of the Lower St. Lawrence Estuary and Gulf have, in the last decades, experienced a strong decline in their oxygen concentration. Below 65 µmol L⁻¹, the waters are said to be hypoxic, with dire consequences on marine life. We show that the extent of the hypoxic zone increased by seven-fold in the last 20 years, reaching 9400 km2 in 2021. After a stable period at ~65 µmol L⁻¹ from 1984 to 2019, the oxygen level also suddenly decreased to ~35 μmol L⁻¹ in 2020.
Le Zhang and Z. George Xue
Biogeosciences, 19, 4589–4618, https://doi.org/10.5194/bg-19-4589-2022, https://doi.org/10.5194/bg-19-4589-2022, 2022
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We adopt a high-resolution carbon model for the Gulf of Mexico (GoM) and calculate the decadal trends of important carbon system variables in the GoM from 2001 to 2019. The GoM surface CO2 values experienced a steady increase over the past 2 decades, and the ocean surface pH is declining. Although carbonate saturation rates remain supersaturated with aragonite, they show a slightly decreasing trend. The northern GoM is a stronger carbon sink than we thought.
Michael M. Whitney
Biogeosciences, 19, 4479–4497, https://doi.org/10.5194/bg-19-4479-2022, https://doi.org/10.5194/bg-19-4479-2022, 2022
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Coastal hypoxia is a major environmental problem of increasing severity. The 21st-century projections analyzed indicate global coastal waters will warm and experience rapid declines in oxygen. The forecasted median coastal trends for increasing sea surface temperature and decreasing oxygen capacity are 48 % and 18 % faster than the rates observed over the last 4 decades. Existing hypoxic areas are expected to worsen, and new hypoxic areas likely will emerge under these warming-related pressures.
Bryce Van Dam, Nele Lehmann, Mary A. Zeller, Andreas Neumann, Daniel Pröfrock, Marko Lipka, Helmuth Thomas, and Michael Ernst Böttcher
Biogeosciences, 19, 3775–3789, https://doi.org/10.5194/bg-19-3775-2022, https://doi.org/10.5194/bg-19-3775-2022, 2022
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We quantified sediment–water exchange at shallow sites in the North and Baltic seas. We found that porewater irrigation rates in the former were approximately twice as high as previously estimated, likely driven by relatively high bioirrigative activity. In contrast, we found small net fluxes of alkalinity, ranging from −35 µmol m−2 h−1 (uptake) to 53 µmol m−2 h−1 (release). We attribute this to low net denitrification, carbonate mineral (re-)precipitation, and sulfide (re-)oxidation.
Jiaying Abby Guo, Robert Strzepek, Anusuya Willis, Aaron Ferderer, and Lennart Thomas Bach
Biogeosciences, 19, 3683–3697, https://doi.org/10.5194/bg-19-3683-2022, https://doi.org/10.5194/bg-19-3683-2022, 2022
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Ocean alkalinity enhancement is a CO2 removal method with significant potential, but it can lead to a perturbation of the ocean with trace metals such as nickel. This study tested the effect of increasing nickel concentrations on phytoplankton growth and photosynthesis. We found that the response to nickel varied across the 11 phytoplankton species tested here, but the majority were rather insensitive. We note, however, that responses may be different under other experimental conditions.
Malcolm E. Scully, W. Rockwell Geyer, David Borkman, Tracy L. Pugh, Amy Costa, and Owen C. Nichols
Biogeosciences, 19, 3523–3536, https://doi.org/10.5194/bg-19-3523-2022, https://doi.org/10.5194/bg-19-3523-2022, 2022
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For two consecutive summers, the bottom waters in southern Cape Cod Bay became severely depleted of dissolved oxygen. Low oxygen levels in bottom waters have never been reported in this area before, and this unprecedented occurrence is likely the result of a new algae species that recently began blooming during the late-summer months. We present data suggesting that blooms of this new species are the result of regional climate change including warmer waters and changes in summer winds.
Zheng Chen, Bin Wang, Chuang Xu, Zhongren Zhang, Shiyu Li, and Jiatang Hu
Biogeosciences, 19, 3469–3490, https://doi.org/10.5194/bg-19-3469-2022, https://doi.org/10.5194/bg-19-3469-2022, 2022
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Deterioration of low-oxygen conditions in the coastal waters off Hong Kong was revealed by monitoring data over two decades. The declining wind forcing and the increasing nutrient input contributed significantly to the areal expansion and intense deterioration of low-oxygen conditions. Also, the exacerbated eutrophication drove a shift in the dominant source of organic matter from terrestrial inputs to in situ primary production, which has probably led to an earlier onset of hypoxia in summer.
Stella-Theresa Stoicescu, Jaan Laanemets, Taavi Liblik, Māris Skudra, Oliver Samlas, Inga Lips, and Urmas Lips
Biogeosciences, 19, 2903–2920, https://doi.org/10.5194/bg-19-2903-2022, https://doi.org/10.5194/bg-19-2903-2022, 2022
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Coastal basins with high input of nutrients often suffer from oxygen deficiency. In summer 2018, the extent of oxygen depletion was exceptional in the Gulf of Riga. We analyzed observational data and found that extensive oxygen deficiency appeared since the water layer close to the seabed, where oxygen is consumed, was separated from the surface layer. The problem worsens if similar conditions restricting vertical transport of oxygen occur more frequently in the future.
Justin C. Tiano, Jochen Depestele, Gert Van Hoey, João Fernandes, Pieter van Rijswijk, and Karline Soetaert
Biogeosciences, 19, 2583–2598, https://doi.org/10.5194/bg-19-2583-2022, https://doi.org/10.5194/bg-19-2583-2022, 2022
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This study gives an assessment of bottom trawling on physical, chemical, and biological characteristics in a location known for its strong currents and variable habitats. Although trawl gears only removed the top 1 cm of the seabed surface, impacts on reef-building tubeworms significantly decreased carbon and nutrient cycling. Lighter trawls slightly reduced the impact on fauna and nutrients. Tubeworms were strongly linked to biogeochemical and faunal aspects before but not after trawling.
Inda Brinkmann, Christine Barras, Tom Jilbert, Tomas Næraa, K. Mareike Paul, Magali Schweizer, and Helena L. Filipsson
Biogeosciences, 19, 2523–2535, https://doi.org/10.5194/bg-19-2523-2022, https://doi.org/10.5194/bg-19-2523-2022, 2022
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The concentration of the trace metal barium (Ba) in coastal seawater is a function of continental input, such as riverine discharge. Our geochemical records of the severely hot and dry year 2018, and following wet year 2019, reveal that prolonged drought imprints with exceptionally low Ba concentrations in benthic foraminiferal calcium carbonates of coastal sediments. This highlights the potential of benthic Ba / Ca to trace past climate extremes and variability in coastal marine records.
Shichao Tian, Birgit Gaye, Jianhui Tang, Yongming Luo, Wenguo Li, Niko Lahajnar, Kirstin Dähnke, Tina Sanders, Tianqi Xiong, Weidong Zhai, and Kay-Christian Emeis
Biogeosciences, 19, 2397–2415, https://doi.org/10.5194/bg-19-2397-2022, https://doi.org/10.5194/bg-19-2397-2022, 2022
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We constrain the nitrogen budget and in particular the internal sources and sinks of nitrate in the Bohai Sea by using a mass-based and dual stable isotope approach based on δ15N and δ18O of nitrate. Based on available mass fluxes and isotope data an updated nitrogen budget is proposed. Compared to previous estimates, it is more complete and includes the impact of the interior cycle (nitrification) on the nitrate pool. The main external nitrogen sources are rivers contributing 19.2 %–25.6 %.
Gesa Schulz, Tina Sanders, Justus E. E. van Beusekom, Yoana G. Voynova, Andreas Schöl, and Kirstin Dähnke
Biogeosciences, 19, 2007–2024, https://doi.org/10.5194/bg-19-2007-2022, https://doi.org/10.5194/bg-19-2007-2022, 2022
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Estuaries can significantly alter nutrient loads before reaching coastal waters. Our study of the heavily managed Ems estuary (Northern Germany) reveals three zones of nitrogen turnover along the estuary with water-column denitrification in the most upstream hyper-turbid part, nitrate production in the middle reaches and mixing/nitrate uptake in the North Sea. Suspended particulate matter was the overarching control on nitrogen cycling in the hyper-turbid estuary.
Wiley Evans, Geoffrey T. Lebon, Christen D. Harrington, Yuichiro Takeshita, and Allison Bidlack
Biogeosciences, 19, 1277–1301, https://doi.org/10.5194/bg-19-1277-2022, https://doi.org/10.5194/bg-19-1277-2022, 2022
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Information on the marine carbon dioxide system along the northeast Pacific Inside Passage has been limited. To address this gap, we instrumented an Alaskan ferry in order to characterize the marine carbon dioxide system in this region. Data over a 2-year period were used to assess drivers of the observed variability, identify the timing of severe conditions, and assess the extent of contemporary ocean acidification as well as future levels consistent with a 1.5 °C warmer climate.
Melissa Ward, Tye L. Kindinger, Heidi K. Hirsh, Tessa M. Hill, Brittany M. Jellison, Sarah Lummis, Emily B. Rivest, George G. Waldbusser, Brian Gaylord, and Kristy J. Kroeker
Biogeosciences, 19, 689–699, https://doi.org/10.5194/bg-19-689-2022, https://doi.org/10.5194/bg-19-689-2022, 2022
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Here, we synthesize the results from 62 studies reporting in situ rates of seagrass metabolism to highlight spatial and temporal variability in oxygen fluxes and inform efforts to use seagrass to mitigate ocean acidification. Our analyses suggest seagrass meadows are generally autotrophic and variable in space and time, and the effects on seawater oxygen are relatively small in magnitude.
Tianfei Xue, Ivy Frenger, A. E. Friederike Prowe, Yonss Saranga José, and Andreas Oschlies
Biogeosciences, 19, 455–475, https://doi.org/10.5194/bg-19-455-2022, https://doi.org/10.5194/bg-19-455-2022, 2022
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The Peruvian system supports 10 % of the world's fishing yield. In the Peruvian system, wind and earth’s rotation bring cold, nutrient-rich water to the surface and allow phytoplankton to grow. But observations show that it grows worse at high upwelling. Using a model, we find that high upwelling happens when air mixes the water the most. Then phytoplankton is diluted and grows slowly due to low light and cool upwelled water. This study helps to estimate how it might change in a warming climate.
Shao-Min Chen, Ulf Riebesell, Kai G. Schulz, Elisabeth von der Esch, Eric P. Achterberg, and Lennart T. Bach
Biogeosciences, 19, 295–312, https://doi.org/10.5194/bg-19-295-2022, https://doi.org/10.5194/bg-19-295-2022, 2022
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Oxygen minimum zones in the ocean are characterized by enhanced carbon dioxide (CO2) levels and are being further acidified by increasing anthropogenic atmospheric CO2. Here we report CO2 system measurements in a mesocosm study offshore Peru during a rare coastal El Niño event to investigate how CO2 dynamics may respond to ongoing ocean deoxygenation. Our observations show that nitrogen limitation, productivity, and plankton community shift play an important role in driving the CO2 dynamics.
Paula Maria Salgado-Hernanz, Aurore Regaudie-de-Gioux, David Antoine, and Gotzon Basterretxea
Biogeosciences, 19, 47–69, https://doi.org/10.5194/bg-19-47-2022, https://doi.org/10.5194/bg-19-47-2022, 2022
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For the first time, this study presents the characteristics of primary production in coastal regions of the Mediterranean Sea based on satellite-borne observations for the period 2002–2016. The study concludes that there are significant spatial and temporal variations among different regions. Quantifying primary production is of special importance in the marine food web and in the sequestration of carbon dioxide from the atmosphere to the deep waters.
Samu Elovaara, Eeva Eronen-Rasimus, Eero Asmala, Tobias Tamelander, and Hermanni Kaartokallio
Biogeosciences, 18, 6589–6616, https://doi.org/10.5194/bg-18-6589-2021, https://doi.org/10.5194/bg-18-6589-2021, 2021
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Dissolved organic matter (DOM) is a significant carbon pool in the marine environment. The composition of the DOM pool, as well as its interaction with microbes, is complex, yet understanding it is important for understanding global carbon cycling. This study shows that two phytoplankton species have different effects on the composition of the DOM pool and, through the DOM they produce, on the ensuing microbial community. These communities in turn have different effects on DOM composition.
Yuan Dong, Qian P. Li, Zhengchao Wu, Yiping Shuai, Zijia Liu, Zaiming Ge, Weiwen Zhou, and Yinchao Chen
Biogeosciences, 18, 6423–6434, https://doi.org/10.5194/bg-18-6423-2021, https://doi.org/10.5194/bg-18-6423-2021, 2021
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Temporal change of plankton growth and grazing are less known in the coastal ocean, not to mention the relevant controlling mechanisms. Here, we performed monthly size-specific dilution experiments outside a eutrophic estuary over a 1-year cycle. Phytoplankton growth was correlated to nutrients and grazing mortality to total chlorophyll a. A selective grazing on small cells may be important for maintaining high abundance of large-chain-forming diatoms in this eutrophic system.
Kiefer O. Forsch, Lisa Hahn-Woernle, Robert M. Sherrell, Vincent J. Roccanova, Kaixuan Bu, David Burdige, Maria Vernet, and Katherine A. Barbeau
Biogeosciences, 18, 6349–6375, https://doi.org/10.5194/bg-18-6349-2021, https://doi.org/10.5194/bg-18-6349-2021, 2021
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We show that for an unperturbed cold western Antarctic Peninsula fjord, the seasonality of iron and manganese is linked to the dispersal of metal-rich meltwater sources. Geochemical measurements of trace metals in meltwaters, porewaters, and seawater, collected during two expeditions, showed a seasonal cycle of distinct sources. Finally, model results revealed that the dispersal of surface meltwater and meltwater plumes originating from under the glacier is sensitive to katabatic wind events.
Jenny Hieronymus, Kari Eilola, Malin Olofsson, Inga Hense, H. E. Markus Meier, and Elin Almroth-Rosell
Biogeosciences, 18, 6213–6227, https://doi.org/10.5194/bg-18-6213-2021, https://doi.org/10.5194/bg-18-6213-2021, 2021
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Dense blooms of cyanobacteria occur every summer in the Baltic Proper and can add to eutrophication by their ability to turn nitrogen gas into dissolved inorganic nitrogen. Being able to correctly estimate the size of this nitrogen fixation is important for management purposes. In this work, we find that the life cycle of cyanobacteria plays an important role in capturing the seasonality of the blooms as well as the size of nitrogen fixation in our ocean model.
Tom Hull, Naomi Greenwood, Antony Birchill, Alexander Beaton, Matthew Palmer, and Jan Kaiser
Biogeosciences, 18, 6167–6180, https://doi.org/10.5194/bg-18-6167-2021, https://doi.org/10.5194/bg-18-6167-2021, 2021
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The shallow shelf seas play a large role in the global cycling of CO2 and also support large fisheries. We use an autonomous underwater vehicle in the central North Sea to measure the rates of change in oxygen and nutrients.
Using these data we determine the amount of carbon dioxide taken out of the atmosphere by the sea and measure how productive the region is.
These observations will be useful for improving our predictive models and help us predict and adapt to a changing ocean.
Puthenveettil Narayana Menon Vinayachandran, Yukio Masumoto, Michael J. Roberts, Jenny A. Huggett, Issufo Halo, Abhisek Chatterjee, Prakash Amol, Garuda V. M. Gupta, Arvind Singh, Arnab Mukherjee, Satya Prakash, Lynnath E. Beckley, Eric Jorden Raes, and Raleigh Hood
Biogeosciences, 18, 5967–6029, https://doi.org/10.5194/bg-18-5967-2021, https://doi.org/10.5194/bg-18-5967-2021, 2021
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Upwelling in the coastal ocean triggers biological productivity and thus enhances fisheries. Therefore, understanding the phenomenon of upwelling and the underlying mechanisms is important. In this paper, the present understanding of the upwelling along the coastline of the Indian Ocean from the coast of Africa all the way up to the coast of Australia is reviewed. The review provides a synthesis of the physical processes associated with upwelling and its impact on the marine ecosystem.
Alireza Merikhi, Peter Berg, and Markus Huettel
Biogeosciences, 18, 5381–5395, https://doi.org/10.5194/bg-18-5381-2021, https://doi.org/10.5194/bg-18-5381-2021, 2021
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The aquatic eddy covariance technique is a powerful method for measurements of solute fluxes across the sediment–water interface. Data measured by conventional eddy covariance instruments require a time shift correction that can result in substantial flux errors. We introduce a triple O2 sensor eddy covariance instrument that by design eliminates these errors. Deployments next to a conventional instrument in the Florida Keys demonstrate the improvements achieved through the new design.
Jiatang Hu, Zhongren Zhang, Bin Wang, and Jia Huang
Biogeosciences, 18, 5247–5264, https://doi.org/10.5194/bg-18-5247-2021, https://doi.org/10.5194/bg-18-5247-2021, 2021
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In situ observations over 42 years were used to explore the long-term changes to low-oxygen conditions in the Pearl River estuary. Apparent expansion of the low-oxygen conditions in summer was identified, primarily due to the combined effects of increased anthropogenic inputs and decreased sediment load. Large areas of severe low-oxygen events were also observed in early autumn and were formed by distinct mechanisms. The estuary seems to be growing into a seasonal, estuary-wide hypoxic zone.
Indah Ardiningsih, Kyyas Seyitmuhammedov, Sylvia G. Sander, Claudine H. Stirling, Gert-Jan Reichart, Kevin R. Arrigo, Loes J. A. Gerringa, and Rob Middag
Biogeosciences, 18, 4587–4601, https://doi.org/10.5194/bg-18-4587-2021, https://doi.org/10.5194/bg-18-4587-2021, 2021
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Organic Fe speciation is investigated along a natural gradient of the western Antarctic Peninsula from an ice-covered shelf to the open ocean. The two major fronts in the region affect the distribution of ligands. The excess ligands not bound to dissolved Fe (DFe) comprised up to 80 % of the total ligand concentrations, implying the potential to solubilize additional Fe input. The ligands on the shelf can increase the DFe residence time and fuel local primary production upon ice melt.
Melissa R. McCutcheon, Hongming Yao, Cory J. Staryk, and Xinping Hu
Biogeosciences, 18, 4571–4586, https://doi.org/10.5194/bg-18-4571-2021, https://doi.org/10.5194/bg-18-4571-2021, 2021
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We used 5+ years of discrete samples and 10 months of hourly sensor measurements to explore temporal variability and environmental controls on pH and pCO2 at the Aransas Ship Channel. Seasonal and diel variability were both present but small compared to other regions in the literature. Despite the small tidal range, tidal control often surpassed biological control. In comparison with sensor data, discrete samples were generally representative of mean annual and seasonal carbonate chemistry.
Kai G. Schulz, Eric P. Achterberg, Javier Arístegui, Lennart T. Bach, Isabel Baños, Tim Boxhammer, Dirk Erler, Maricarmen Igarza, Verena Kalter, Andrea Ludwig, Carolin Löscher, Jana Meyer, Judith Meyer, Fabrizio Minutolo, Elisabeth von der Esch, Bess B. Ward, and Ulf Riebesell
Biogeosciences, 18, 4305–4320, https://doi.org/10.5194/bg-18-4305-2021, https://doi.org/10.5194/bg-18-4305-2021, 2021
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Upwelling of nutrient-rich deep waters to the surface make eastern boundary upwelling systems hot spots of marine productivity. This leads to subsurface oxygen depletion and the transformation of bioavailable nitrogen into inert N2. Here we quantify nitrogen loss processes following a simulated deep water upwelling. Denitrification was the dominant process, and budget calculations suggest that a significant portion of nitrogen that could be exported to depth is already lost in the surface ocean.
Heiner Dietze and Ulrike Löptien
Biogeosciences, 18, 4243–4264, https://doi.org/10.5194/bg-18-4243-2021, https://doi.org/10.5194/bg-18-4243-2021, 2021
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In recent years fish-kill events caused by oxygen deficit have been reported in Eckernförde Bight (Baltic Sea). This study sets out to understand the processes causing respective oxygen deficits by combining high-resolution coupled ocean circulation biogeochemical modeling, monitoring data, and artificial intelligence.
Jens A. Hölemann, Bennet Juhls, Dorothea Bauch, Markus Janout, Boris P. Koch, and Birgit Heim
Biogeosciences, 18, 3637–3655, https://doi.org/10.5194/bg-18-3637-2021, https://doi.org/10.5194/bg-18-3637-2021, 2021
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The Arctic Ocean receives large amounts of river water rich in terrestrial dissolved organic matter (tDOM), which is an important component of the Arctic carbon cycle. Our analysis shows that mixing of three major freshwater sources is the main factor that regulates the distribution of tDOM concentrations in the Siberian shelf seas. In this context, the formation and melting of the land-fast ice in the Laptev Sea and the peak spring discharge of the Lena River are of particular importance.
Jaard Hauschildt, Soeren Thomsen, Vincent Echevin, Andreas Oschlies, Yonss Saranga José, Gerd Krahmann, Laura A. Bristow, and Gaute Lavik
Biogeosciences, 18, 3605–3629, https://doi.org/10.5194/bg-18-3605-2021, https://doi.org/10.5194/bg-18-3605-2021, 2021
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In this paper we quantify the subduction of upwelled nitrate due to physical processes on the order of several kilometers in the coastal upwelling off Peru and its effect on primary production. We also compare the prepresentation of these processes in a high-resolution simulation (~2.5 km) with a more coarsely resolved simulation (~12 km). To do this, we combine high-resolution shipboard observations of physical and biogeochemical parameters with a complex biogeochemical model configuration.
Samantha A. Siedlecki, Darren Pilcher, Evan M. Howard, Curtis Deutsch, Parker MacCready, Emily L. Norton, Hartmut Frenzel, Jan Newton, Richard A. Feely, Simone R. Alin, and Terrie Klinger
Biogeosciences, 18, 2871–2890, https://doi.org/10.5194/bg-18-2871-2021, https://doi.org/10.5194/bg-18-2871-2021, 2021
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Future ocean conditions can be simulated using projected trends in fossil fuel use paired with Earth system models. Global models generally do not include local processes important to coastal ecosystems. These coastal processes can alter the degree of change projected. Higher-resolution models that include local processes predict modified changes in carbon stressors when compared to changes projected by global models in the California Current System.
Erik Jacobs, Henry C. Bittig, Ulf Gräwe, Carolyn A. Graves, Michael Glockzin, Jens D. Müller, Bernd Schneider, and Gregor Rehder
Biogeosciences, 18, 2679–2709, https://doi.org/10.5194/bg-18-2679-2021, https://doi.org/10.5194/bg-18-2679-2021, 2021
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We use a unique data set of 8 years of continuous carbon dioxide (CO2) and methane (CH4) surface water measurements from a commercial ferry to study upwelling in the Baltic Sea. Its seasonality and regional and interannual variability are examined. Strong upwelling events drastically increase local surface CO2 and CH4 levels and are mostly detected in late summer after long periods of impaired mixing. We introduce an extrapolation method to estimate regional upwelling-induced trace gas fluxes.
Yangyang Zhao, Khanittha Uthaipan, Zhongming Lu, Yan Li, Jing Liu, Hongbin Liu, Jianping Gan, Feifei Meng, and Minhan Dai
Biogeosciences, 18, 2755–2775, https://doi.org/10.5194/bg-18-2755-2021, https://doi.org/10.5194/bg-18-2755-2021, 2021
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In situ oxygen consumption rates were estimated for the first time during destruction of coastal hypoxia as disturbed by a typhoon and its reinstatement in the South China Sea off the Pearl River estuary. The reinstatement of summer hypoxia was rapid with a comparable timescale with that of its initial disturbance from frequent tropical cyclones, which has important implications for better understanding the intermittent nature of coastal hypoxia and its prediction in a changing climate.
Dylan R. Brown, Humberto Marotta, Roberta B. Peixoto, Alex Enrich-Prast, Glenda C. Barroso, Mario L. G. Soares, Wilson Machado, Alexander Pérez, Joseph M. Smoak, Luciana M. Sanders, Stephen Conrad, James Z. Sippo, Isaac R. Santos, Damien T. Maher, and Christian J. Sanders
Biogeosciences, 18, 2527–2538, https://doi.org/10.5194/bg-18-2527-2021, https://doi.org/10.5194/bg-18-2527-2021, 2021
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Hypersaline tidal flats (HTFs) are coastal ecosystems with freshwater deficits often occurring in arid or semi-arid regions near mangrove supratidal zones with no major fluvial contributions. This study shows that HTFs are important carbon and nutrient sinks which may be significant given their extensive coverage. Our findings highlight a previously unquantified carbon as well as a nutrient sink and suggest that coastal HTF ecosystems could be included in the emerging blue carbon framework.
Giulia Bonino, Elisa Lovecchio, Nicolas Gruber, Matthias Münnich, Simona Masina, and Doroteaciro Iovino
Biogeosciences, 18, 2429–2448, https://doi.org/10.5194/bg-18-2429-2021, https://doi.org/10.5194/bg-18-2429-2021, 2021
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Seasonal variations of processes such as upwelling and biological production that happen along the northwestern African coast can modulate the temporal variability of the biological activity of the adjacent open North Atlantic hundreds of kilometers away from the coast thanks to the lateral transport of coastal organic carbon. This happens with a temporal delay, which is smaller than a season up to roughly 500 km from the coast due to the intense transport by small-scale filaments.
Markus Diesing, Terje Thorsnes, and Lilja Rún Bjarnadóttir
Biogeosciences, 18, 2139–2160, https://doi.org/10.5194/bg-18-2139-2021, https://doi.org/10.5194/bg-18-2139-2021, 2021
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The upper 10 cm of the seafloor of the North Sea and Skagerrak contain 231×106 t of carbon in organic form. The Norwegian Trough, the deepest sedimentary basin in the studied area, stands out as a zone of strong organic carbon accumulation with rates on par with neighbouring fjords. Conversely, large parts of the North Sea are characterised by rapid organic carbon degradation and negligible accumulation. This dual character is likely typical for continental shelf sediments worldwide.
Arnaud Laurent, Katja Fennel, and Angela Kuhn
Biogeosciences, 18, 1803–1822, https://doi.org/10.5194/bg-18-1803-2021, https://doi.org/10.5194/bg-18-1803-2021, 2021
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CMIP5 and CMIP6 models, and a high-resolution regional model, were evaluated by comparing historical simulations with observations in the northwest North Atlantic, a climate-sensitive and biologically productive ocean margin region. Many of the CMIP models performed poorly for biological properties. There is no clear link between model resolution and skill in the global models, but there is an overall improvement in performance in CMIP6 from CMIP5. The regional model performed best.
Heejun Han, Jeomshik Hwang, and Guebuem Kim
Biogeosciences, 18, 1793–1801, https://doi.org/10.5194/bg-18-1793-2021, https://doi.org/10.5194/bg-18-1793-2021, 2021
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The main source of excess DOC occurring in coastal seawater off an artificial lake, which is enclosed by a dike along the western coast of South Korea, was determined using a combination of various biogeochemical tools including DOC and nutrient concentrations, stable carbon isotope, and optical properties (absorbance and fluorescence) of dissolved organic matter in two different seasons (March 2017 and September 2018).
Michelle N. Simone, Kai G. Schulz, Joanne M. Oakes, and Bradley D. Eyre
Biogeosciences, 18, 1823–1838, https://doi.org/10.5194/bg-18-1823-2021, https://doi.org/10.5194/bg-18-1823-2021, 2021
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Estuaries are responsible for a large contribution of dissolved organic carbon (DOC) to the global C cycle, but it is unknown how this will change in the future. DOC fluxes from unvegetated sediments were investigated ex situ subject to conditions of warming and ocean acidification. The future climate shifted sediment fluxes from a slight DOC source to a significant sink, with global coastal DOC export decreasing by 80 %. This has global implications for C cycling and long-term C storage.
Sara González-Delgado, David González-Santana, Magdalena Santana-Casiano, Melchor González-Dávila, Celso A. Hernández, Carlos Sangil, and José Carlos Hernández
Biogeosciences, 18, 1673–1687, https://doi.org/10.5194/bg-18-1673-2021, https://doi.org/10.5194/bg-18-1673-2021, 2021
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We describe the carbon system dynamics of a new CO2 seep system located off the coast of La Palma. We explored for over a year, finding points with lower levels of pH and alkalinity; high levels of carbon; and poorer levels of aragonite and calcite, both essential for calcifying species. The seeps are a key feature for robust experimental designs, aimed at comprehending how life has persisted through past eras or at predicting the consequences of ocean acidification in the marine realm.
Cale A. Miller, Christina Bonsell, Nathan D. McTigue, and Amanda L. Kelley
Biogeosciences, 18, 1203–1221, https://doi.org/10.5194/bg-18-1203-2021, https://doi.org/10.5194/bg-18-1203-2021, 2021
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We report here the first year-long high-frequency pH data set for an Arctic lagoon that captures ice-free and ice-covered seasons. pH and salinity correlation varies by year as we observed positive correlation and independence. Photosynthesis is found to drive high pH values, and small changes in underwater solar radiation can result in rapid decreases in pH. We estimate that arctic lagoons may act as sources of CO2 to the atmosphere, potentially offsetting the Arctic Ocean's CO2 sink capacity.
Cited articles
Accornero, A., Picon, P., De Bovée, F., Charrière, B., and Buscail,
R.: Organic carbon budget at the sediment-water interface on the Gulf of
Lions continental margin, Cont. Shelf Res., 23, 79–92,
https://doi.org/10.1016/S0278-4343(02)00168-1, 2003.
Alberola, C., Millot, C., and Font, J.: On the seasonal and mesoscale
variabilities of the Northern Current during the PRIMO-0 experiment in the
western Mediterranean-sea, Oceanol. Acta, 18, 163–192, 1995.
Alekseenko, E., Raybaud V., Espinasse B., Carlotti F., Queguiner B.,
Thouvenin B., Garreau P., and Baklouti M.: Seasonal dynamics and stoichiometry
of the planktonic community in the NW Mediterranean Sea: a 3D modeling
approach, Ocean Dynam., 64, 179–207, https://doi.org/10.1007/s10236-013-0669-2, 2014.
Auger, P. A., Diaz, F., Ulses, C., Estournel, C., Neveux, J., Joux, F., Pujo-Pay, M., and Naudin, J. J.: Functioning of the planktonic ecosystem on the Gulf of Lions shelf (NW Mediterranean) during spring and its impact on the carbon deposition: a field data and 3-D modelling combined approach, Biogeosciences, 8, 3231–3261, https://doi.org/10.5194/bg-8-3231-2011, 2011.
Bauer, J. E. and Druffel, E. R. M.: Oceans margins as a significant source of
organic matter to the deep open ocean, Nature, 392, 482–485,
https://doi.org/10.1038/33122, 1998.
Behrenfeld, M. J., Westberry, T. K., Boss, E. S., O'Malley, R. T., Siegel, D. A., Wiggert, J. D., Franz, B. A., McClain, C. R., Feldman, G. C., Doney, S. C., Moore, J. K., Dall'Olmo, G., Milligan, A. J., Lima, I., and Mahowald, N.: Satellite-detected fluorescence reveals global physiology of ocean phytoplankton, Biogeosciences, 6, 779–794, https://doi.org/10.5194/bg-6-779-2009, 2009.
Bentsen, M., Evensen, G., Drange, H., and Jenkins, A. D.: Coordinate
transformation on a sphere using conformal mapping, Mon. Weather Rev.,
127, 2733–2740, https://doi.org/10.1175/1520-0493(1999)127<2733:CTOASU>2.0.CO;2, 1999.
Bosc, E., Bricaud, A., and Antoine, D.: Seasonal and interannual variability
in algal biomass and primary production in the Mediterranean Sea, as derived
from 4 years of SeaWiFS observations, Global Biogeochem. Cy., 18, 1,
https://doi.org/10.1029/2003GB002034, 2004.
Bouffard, J., Vignudelli, S., Herrmann, M., Lyard, F., Marsaleix, P., Ménard, Y.,
and Cipollini, P.: Comparison of ocean dynamics with a regional
circulation model and improved altimetry in the North-western Mediterranean,
Terrestrial, Atmos. Ocean. Sci., 19, 117–133,
https://doi.org/10.3319/TAO.2008.19.1-2.117(SA), 2008.
Bourrin, F., Many, G., Durrieu de Madron, X., Martín, J., Puig, P.,
Houpert, L., and Béguery, L.: Glider monitoring of shelf suspended
particle dynamics and transport during storm and flooding conditions, Cont.
Shelf Res., 109, 135–149, https://doi.org/10.1016/j.csr.2015.08.031, 2015.
Briton, F., Cortese, D., Duhaut, T., and Guizien, K.: High-resolution
modelling of ocean circulation can reveal retention spots important for
biodiversity conservation, Aquat. Conserv., 28, 882–893, https://doi.org/10.1002/aqc.2901, 2018.
Carret, A., Birol, F., Estournel, C., Zakardjian, B., and Testor, P.: Synergy between in situ and altimetry data to observe and study Northern Current variations (NW Mediterranean Sea), Ocean Sci., 15, 269–290, https://doi.org/10.5194/os-15-269-2019, 2019.
Campbell, R., Diaz, F., Hu, Z. Y., Doglioli, A., Petrenko, A., and Dekeyser,
I.: Nutrients and plankton spatial distributions induced by a coastal eddy in
the Gulf of Lion. Insights from a numerical model, Prog. Oceanogr.,
109, 47–69, https://doi.org/10.1016/j.pocean.2012.09.005, 2013.
Cathalot, C., Rabouille, C., Tisnérat-Laborde, N., Toussaint, F.,
Kerhervé, P., Buscail, R., and Lansard, B.: The fate of river
organic carbon in coastal areas: a study in the Rhône River delta using
multiple isotopic (δ13C, Δ14C) and organic tracers,
Geochim. Cosmochim. Ac., 118, 33–55,
https://doi.org/10.1016/j.gca.2013.05.001, 2013.
Conan, P., Pujo-Pay, M., Raimbault, P., and Leveau, M.: Variabilité
hydrologique et biologique du golfe du Lion, II. Productivité sur le
bord interne du courant, Oceanol. Ac., 21, 767–782,
https://doi.org/10.1016/S0399-1784(99)80005-X, 1998.
Cruzado, A. and Velasquez, Z. R.: Nutrients and phytoplankton in the Gulf of
Lions, northwestern Mediterranean, Cont. Shelf Res., 10, 931–942,
https://doi.org/10.1016/0278-4343(90)90068-W, 1990.
Daewel, U. and Schrum, C.: Low-frequency variability in North Sea and
Baltic Sea identified through simulations with the 3-D coupled
physical–biogeochemical model ECOSMO, Earth Syst. Dynam., 8, 801–815,
https://doi.org/10.5194/esd-8-801-2017, 2017.
Dagg, M., Benner, R., Lohrenz, S., and Lawrence, D.: Transformation of
dissolved and particulate materials on continental shelves influenced by
large rivers: plume processes, Cont. Shelf Res., 24, 833–858,
https://doi.org/10.1016/j.csr.2004.02.003, 2004.
Dagg, M. J., Bianchi, T., McKee, B., and Powell, R.: Fates of dissolved and
particulate materials from the Mississippi river immediately after discharge
into the northern Gulf of Mexico, USA, during a period of low wind stress,
Cont. Shelf Res., 28, 1443–1450, https://doi.org/10.1016/j.csr.2006.12.009,
2008.
Darmaraki, S., Somot, S., Sevault, F., Nabat, P., Cabos Narvaez, W. D., Cavicchia, L., Djurdjevic, V., Li, L., Sannino, G., and Sein, D. V.: Future evolution of marine heatwaves in the
Mediterranean Sea, Clim. Dynam. 53, 1371–1392, https://doi.org/10.1007/s00382-019-04661-z, 2019.
Davis, R. E., Eriksen, C. C., and Jones, C. P.: Autonomous buoyancy-driven
underwater gliders, The technology and applications of autonomous underwater
vehicles, The technology and applications
of autonomous underwater vehicles, 37–58, 2002.
Diaz, F., Raimbault, P., and Conan, P.: Small-scale study of primary
productivity during spring in a Mediterranean coastal area (Gulf of Lions),
Cont. Shelf Res., 20, 975–996, 2000.
Dufau-Julliand, C., Marsaleix, P., Petrenko, A., and Dekeyser, I.:
Three-dimensional modeling of the Gulf of Lion's hydrodynamics (northwest
Mediterranean) during January 1999 (MOOGLI3 Experiment) and late winter
1999: Western Mediterranean Intermediate Water's (WIW's) formation and its
cascading over the shelf break, J. Geophys. Res.-Oceans,
109, C11, https://doi.org/10.1029/2003JC002019, 2004.
Durrieu de Madron, X., Abassi, A., Heussner, S., Monaco, A., Aloisi, J. C.,
Radakovitch, O., Giresse, P., Buscail, R., and Kerherveì, P.: Particulate
matter and organic carbon budgets for the Gulf of Lions (NW Mediterranean),
Oceanol. Ac., 23, 717–730,
https://doi.org/10.1016/S0399-1784(00)00119-5, 2000.
Durrieu de Madron, X., Denis, L., Diaz, F., Garcia, N., Guieu, C., Grenz,
C., and Ridame, C.: Nutrients and carbon budgets for the Gulf of Lion during
the Moogli cruises, Oceanol. Ac., 26, 421–433,
https://doi.org/10.1016/S0399-1784(03)00024-0, 2003.
Durrieu de Madron, X., Houpert, L., Puig, P., Sanchez-Vidal, A., Testor, P.,
Bosse, A., and Raimbault, P.: Interaction of dense shelf water cascading
and open-sea convection in the northwestern Mediterranean during winter
2012, Geophys. Res. Lett., 40, 1379–1385,
https://doi.org/10.1002/grl.50331, 2013.
Eppley, R. W.: Temperature and phytoplankton growth in the sea, Fish. Bull.,
70, 1063–1085, 1972.
Estournel, C., Kondrachoff, V., Marsaleix, P., and Vehil, R.: The plume of
the Rhone: numerical simulation and remote sensing, Cont. Shelf Res., 17,
899–924, https://doi.org/10.1016/S0278-4343(96)00064-7, 1997.
Estournel, C., Durrieu de Madron, X., Marsaleix, P., Auclair, F., Julliand,
C., and Vehil, R.: Observation and modeling of the winter coastal oceanic
circulation in the Gulf of Lion under wind conditions influenced by the
continental orography (FETCH experiment), J. Geophys. Res.-Oceans, 108, C3, https://doi.org/10.1029/2001JC000825, 2003.
Estournel, C., Auclair, F., Lux, M., Nguyen, C., and Marsaleix, P.: “Scale oriented” embedded modeling of the North-Western Mediterranean in the frame of MFSTEP, Ocean Sci., 5, 73–90, https://doi.org/10.5194/os-5-73-2009, 2009.
Estournel, C., Testor, P., Damien, P., D'Ortenzio, F., Marsaleix, P., Conan,
P., and Prieur, L.: High resolution modeling of dense water formation in the
north-western Mediterranean during winter 2012–2013: Processes and budget,
J. Geophys.-Res.-Oceans, 121, 5367–5392,
https://doi.org/10.1002/2016JC011935, 2016.
Fraysse, M., Pairaud, I., Ross, O. N., Faure, V. M., and Pinazo, C.:
Intrusion of Rhone River diluted water into the Bay of Marseille: Generation
processes and impacts on ecosystem functioning, J. Geophys.-Res.-Oceans, 119, 6535–6556, https://doi.org/10.1002/2014JC010022,
2014.
Fraysse, M., Pinazo, C., Faure, V. M., Fuchs, R., Lazzari, P., Raimbault,
P., and Pairaud, I.: Development of a 3D coupled physical-biogeochemical
model for the Marseille coastal area (NW Mediterranean Sea): what complexity
is required in the coastal zone?, PlOS ONE, 8, e80012,
https://doi.org/10.1371/journal.pone.0080012, 2013.
Gangloff, A., Verney, R., Doxaran, D., Ody, A., and Estournel, C.:
Investigating Rhône River plume (Gulf of Lions, France) dynamics using
metrics analysis from the MERIS 300 m Ocean Color archive (2002–2012), Cont.
Shelf Res., 144, 98–111, https://doi.org/10.1016/j.csr.2017.06.024, 2017.
Gao, S. and Wang, Y. P.: Changes in material fluxes from the Changjiang
River and their implications on the adjoining continental shelf ecosystem,
Cont. Shelf. Res., 28, 1490–1500,
https://doi.org/10.1016/j.csr.2007.02.010, 2008.
Gohin, F.: Annual cycles of chlorophyll-a, non-algal suspended particulate
matter, and turbidity observed from space and in-situ in coastal waters,
Ocean Sci., 7, 705–732, https://doi.org/10.5194/os-7-705-2011, 2011.
Got, H. and Aloisi, J. C.: The Holocene sedimentation on the Gulf of Lions
margin: a quantitative approach, Cont. Shelf Res., 10, 841–855,
https://doi.org/10.1016/0278-4343(90)90062-Q, 1990.
Guyennon, A., Baklouti, M., Diaz, F., Palmieri, J., Beuvier, J., Lebaupin-Brossier, C., Arsouze, T., Béranger, K., Dutay, J.-C., and Moutin, T.: New insights into the organic carbon export in the Mediterranean Sea from 3-D modeling, Biogeosciences, 12, 7025–7046, https://doi.org/10.5194/bg-12-7025-2015, 2015.
Herrmann, M., Estournel, C., Somot, S., Déqué, M., Marsaleix, P.,
and Sevault, F.: Impact of interannual variability and climate change on
dense water cascading in the Gulf of Lions, Cont. Shelf Res., 28,
2092–2112, 2008.
Herrmann, M., Diaz, F., Estournel, C., Marsaleix, P., and Ulses, C.: Impact
of atmospheric and oceanic interannual variability on the Northwestern
Mediterranean Sea pelagic planktonic ecosystem and associated carbon cycle,
J. Geophys. Res.-Oceans, 118, 5792–5813,
https://doi.org/10.1002/jgrc.20405, 2013.
Herrmann, M., Estournel, C., Adloff, F., and Diaz, F.: Impact of climate
change on the northwestern Mediterranean Sea pelagic planktonic ecosystemand
associated carbon cycle. J. Geophys. Res.-Oceans 119, 1–22, https://doi.org/10.1002/2014JC010016, 2014.
Hofmann, E. E., Cahill, B., Fennel, K., Friedrichs, M. A., Hyde, K., Lee,
C., and Xue, J.: Modeling the dynamics of continental shelf carbon, Annu. Rev. Mar. Sci., 3, 93–122,
https://doi.org/10.1146/annurev-marine-120709-142740, 2011.
Hu, Z. Y., Petrenko, A. A., Doglioli, A. M., and Dekeyser, I.: Study of a
mesoscale anticyclonic eddy in the western part of the Gulf of Lion, J. Mar. Syst., 88, 3–11, https://doi.org/10.1016/j.jmarsys.2011.02.008,
2011.
Kessouri, F., Ulses, C., Estournel, C., Marsaleix, P., D'Ortenzio, F.,
Severin, T., and Conan, P.: Vertical mixing effects on phytoplankton
dynamics and organic carbon export in the western Mediterranean Sea, J. Geophys. Res.-Oceans, 123, 1647–1669,
https://doi.org/10.1002/2016JC012669, 2018.
Kessouri, F., Ulses, C., Estournel, C., Marsaleix, P., Severin, T.,
Pujo-Pay, M., and Taillandier, V.: Nitrogen and phosphorus budgets in the
Northwestern Mediterranean deep convection region, J. Geophys. Res.-Oceans, 122, 9429–9454, https://doi.org/10.1002/2016JC012665,
2017.
Lajaunie-Salla, K., Diaz, F., Wimart-Rousseau, C., Wagener, T., Lefèvre, D., Yohia, C., Xueref-Remy, I., Nathan, B., Armengaud, A., and Pinazo, C.: Implementation and assessment of a carbonate system model (Eco3M-CarbOx v1.1) in a highly dynamic Mediterranean coastal site (Bay of Marseille, France), Geosci. Model Dev., 14, 295–321, https://doi.org/10.5194/gmd-14-295-2021, 2021.
Lapouyade, A. and Durrieu de Madron, X.: Seasonal variability of the
advective transport of particulate matter and organic carbon in the Gulf of
Lion (NW Mediterranean), Oceanol. Ac., 24, 295–312,
https://doi.org/10.1016/S0399-1784(01)01148-3, 2001.
Large, W. G. and Yeager, S. G.: Diurnal to decadal global forcing for ocean
and sea-ice models: The data sets and flux climatologies (NCAR Tech. Note
NCAR/TN-4601STR), Boulder, CO: National Center of Atmospheric Research,
https://doi.org/10.5065/D6KK98Q6, 2004.
Lazzari, P., Solidoro, C., Ibello, V., Salon, S., Teruzzi, A., Béranger, K., Colella, S., and Crise, A.: Seasonal and inter-annual variability of plankton chlorophyll and primary production in the Mediterranean Sea: a modelling approach, Biogeosciences, 9, 217–233, https://doi.org/10.5194/bg-9-217-2012, 2012.
Lazzari, P., Mattia, G., Solidoro, C., Salon, S., Crise, A., Zavatarelli, M., Oddo, P., and Vichi, M.: The impacts of climate change and environmental management
policies on the trophic regimes in the Mediterranean Sea: scenario analyses,
J. Mar. Syst., 135, 137–149, https://doi.org/10.1016/j.jmarsys.2013.06.005, 2014.
Lefevre, D., Minas, H. J., Minas, M., Robinson, C., Williams, P. J., Le, B., and
Woodward, E. M. S.: Review of gross community production, primary production,
net community production and dark community respiration in the Gulf of Lion,
Deep-Sea Res. Pt. II, 44, 801–832,
https://doi.org/10.1016/S0967-0645(96)00091-4, 1997.
Legendre, L.: The significance of microalgal blooms for fisheries and for
the export of particulate organic carbon in oceans, J. Plankt. Res., 12, 681–699, https://doi.org/10.1093/plankt/12.4.681, 1990.
Lohrenz, S. E., Redalje, D. G., Cai, W. J., Acker, J., and Dagg, M.: A
retrospective analysis of nutrients and phytoplankton productivity in the
Mississippi River plume, Cont. Shelf. Res., 28, 1466–1475,
https://doi.org/10.1016/j.csr.2007.06.019, 2008.
Liénart, C., Savoye, N., Bozec, Y., Breton, E., Conan, P., David, V.,
Feunteun, E., Grangeré, K., Kerhervé, P., and Sultan, E.:
Dynamics of particulate organic matter composition in coastal systems: a
spatio-temporal study at multi-systems scale, Prog. Oceanogr., 156, 221–239,
https://doi.org/10.1016/j.pocean.2017.03.001, 2017.
Liénart, C., Savoye, N.,David, V., Ramond, P., Tress, P. R., Hanquiez,
V., Marieu, V., Aubert, F., Aubin, S., Bichon, S., Boinet, C., Bourasseau,
L., Bozec, Y., and Susperregui, N.: Dynamics of particulate
organic matter composition in coastal systems: Forcing of spatio-temporal
variability at multi-systems scale, Prog. Oceanogr., 162, 271–289,
https://doi.org/10.1016/j.pocean.2018.02.026, 2018.
Liu, G. and Chai, F.: Seasonal and interannual variability of primary and
export production in the South China Sea: a three-dimensional
physical-biogeochemical model study, ICES J. Mar. Sci., 66,
420–431, https://doi.org/10.1093/icesjms/fsn219, 2009.
Liu, K.-K., Atkinson, L., Quinones, R., and Talaue-NcManus, L.: Carbon and
Nutrient Fluxes in Continental Margins: A Global Synthesis, Springer,
Berlin, Germany, https://doi.org/10.1007/978-3-540-92735-8, 2010.
Ludwig, W., Dumont, E., Meybeck, M., and Heussner, S.: River discharges of
water and nutrients to the Mediterranean and Black Sea: major drivers for
ecosystem changes during past and future decades?, Prog. Oceanogr.,
80, 199–217, https://doi.org/10.1016/j.pocean.2009.02.001, 2009.
Ludwig, W., Bouwman, A. F., Dumont, E., and Lespinas, F.: Water and nutrient
fluxes from major Mediterranean and Black Sea rivers: Past and future trends
and their implications for the basin-scale budgets, Global Biogeochem. Cy., 24, 4, https://doi.org/10.1029/2009GB003594, 2010.
Macias, D., Garcia-Gorriz, E., and Stips, A.: Major fertilization sources and
mechanisms for Mediterranean Sea coastal ecosystems, Limnol. Oceanogr., 63,
897–914, https://doi.org/10.1002/lno.10677, 2018.
Maillet, G. M., Vella, C., Berné, S., Friend, P. L., Amos, C. L.,
Fleury, T. J., and Normand, A.: Morphological changes and sedimentary
processes induced by the December 2003 flood event at the present mouth of
the Grand Rhône River (southern France), Mar. Geol.,, 234, 159–177,
https://doi.org/10.1016/j.margeo.2006.09.025, 2006.
Many, G., Bourrin, F., Durrieu de Madron, X., Ody, A., Doxaran, D., and
Cauchy, P.: Glider and satellite monitoring of the variability of the
suspended particle distribution and size in the Rhône ROFI, Prog. Oceanogr., 163, 123–135, https://doi.org/10.1016/j.pocean.2017.05.006,
2018.
Marsaleix, P.: Sources of the hydrodynamic code used in “Particulate organic carbon dynamics in the Gulf of Lion shelf (NW Mediterranean) using a coupled hydrodynamic–biogeochemical model” by Many et al. 2021, [code], available at: https://sirocco.obs-mip.fr/ocean-models/s-model/download/, last access: 21 September 2021.
Marsaleix, P., Estournel, C., Kondrachoff, V., and Vehil, R.: A numerical
study of the formation of the Rhône River plume, J. Mar.
Syst., 14, 99–115, https://doi.org/10.1016/S0924-7963(97)00011-0, 1998.
Marsaleix, P., Auclair, F., and Estournel, C.: Considerations on Open
Boundary Conditions for Regional and Coastal Ocean Models, J. Atmos. Ocean. Technol., 23, 1604–1613,
https://doi.org/10.1175/JTECH1930.1, 2006.
Marsaleix, P., Auclair, F., Floor, J. W., Herrmann, M. J., Estournel, C.,
Pairaud, I., and Ulses, C.: Energy conservation issues in sigma-coordinate
free-surface ocean models, Ocean Modell., 20, 61–89,
https://doi.org/10.1016/j.ocemod.2007.07.005, 2008.
Minas, M. and Minas, H. J.: Primary production in the Gulf of Lions with
considerations to the Rhone River inputs, Water Pollut. Res. Rep.,
13, 112–125, 1989.
Mikolajczak, G., Estournel, C., Ulses, C., Marsaleix, P., Bourrin, F.,
Martín, J., Pairaud, I., Puig, P., Leredde, Y., Many, G., Seyfried, L.,
and Durrieu de Madron, X.: Impact of storms on residence times and export of
coastal waters during a mild autumn/winter period in the Gulf of Lion, Cont.
Shelf Res., 207, 104192, https://doi.org/10.1016/j.csr.2020.104192, 2020.
Moullec, F., Barrier, N., Drira, S., Guilhaumon, F., Marsaleix, P., Somot,
S., Ulses, C, Velez, L., and Shin, Y.-S.: An end-to-end model reveals losers
and winners in a warming Mediterranean Sea, Front. Mar. Sci., 6, 345, https://doi.org/10.3389/fmars.2019.00345, 2019.
Moutin, T., Raimbault, P., Golterman, H. L., and Coste, B.: The input of
nutrients by the Rhône River into the Mediterranean Sea: Recent
observations and comparison with earlier data, Hydrobiologia, 373, 237,
https://doi.org/10.1023/A:1017020818701, 1998.
Naudin, J. J., Cauwet, G., Chretiennot-Dinet, M. J., Deniaux, B., Devenon,
J.-L., and Pauc, H.: River discharge and wind influence upon particulate
transfer at the land-ocean interaction: Case study of the Rhone River plume,
Estuar. Coast. Shelf Sci., 45, 303–316,
https://doi.org/10.1006/ecss.1996.0190, 1997.
Olita, A., Sorgente, R., Ribotti, A., Fazioli, L., and Perilli, A.: Pelagic
primary production in the Algero-Provençal Basin by means of multisensor
satellite data: focus on interannual variability and its drivers, Ocean
Dynam., 61, 1005–1016, https://doi.org/10.1007/s10236-011-0405-8, 2011.
Pagès, R., Baklouti, M., Barrier, N., Ayache, M., Sevault, F., Somot, S. and Moutin,
T.: Projected Effects of Climate-Induced Changes in Hydrodynamics on the
Biogeochemistry of the Mediterranean Sea Under the RCP 8.5 Regional Climate
Scenario, Front. Mar. Sci., 7, 563615, https://doi.org/10.3389/fmars.2020.563615, 2020.
Palanques, A., Durrieu de Madron, X., Puig, P., Fabres, J., Guillén, J.,
Calafat, A., and Bonnin, J.: Suspended sediment fluxes and transport
processes in the Gulf of Lions submarine canyons, The role of storms and
dense water cascading, Mar. Geol., 234, 43–61,
https://doi.org/10.1016/j.margeo.2006.09.002, 2006.
Pastor, L., Cathalot, C., Deflandre, B., Viollier, E., Soetaert, K., Meysman, F. J. R., Ulses, C., Metzger, E., and Rabouille, C.: Modeling biogeochemical processes in sediments from the Rhône River prodelta area (NW Mediterranean Sea), Biogeosciences, 8, 1351–1366, https://doi.org/10.5194/bg-8-1351-2011, 2011.
Petrenko, A.: Variability of circulation features in the Gulf of Lion NW
Mediterranean Sea. Importance of inertial currents, Oceanol. Ac., 26,
323–338, https://doi.org/10.1016/S0399-1784(03)00038-0., 2003.
Petrenko, A., Leredde, Y., and Marsaleix, P.: Circulation in a stratified and
wind-forced Gulf of Lions, NW Mediterranean Sea: In situ and modeling data,
Cont. Shelf Res., 25, 7–27, https://doi.org/10.1016/j.csr.2004.09.004,
2005.
Petrenko, A., Dufau, C., and Estournel, C.: Barotropic eastward currents in
the western Gulf of Lion, north-western Mediterranean Sea, during stratified
conditions, J. Mar. Syst., 74, 406–428.
https://doi.org/10.1016/j.jmarsys.2008.03.004, 2008.
Pinazo, C., Marsaleix, P., Millet, B., Estournel, C., and Véhil, R.: Spatial and
temporal variability of phytoplankton biomass in upwelling areas of the
northwestern mediterranean: a coupled physical and biogeochemical modelling
approach, J. Mar. Syst., 7, 161–191,
https://doi.org/10.1016/0924-7963(95)00028-3, 1996.
Puig, P., Palanques, A., Orange, D. L., Lastras, G., and Canals, M.: Dense
shelf water cascades and sedimentary furrow formation in the Cap de Creus
Canyon, northwestern Mediterranean Sea, Cont. Shelf Res., 28, 2017–2030,
https://doi.org/10.1016/j.csr.2008.05.002, 2008.
Pujo-Pay, M., Conan, P., Joux, F., Oriol, L., Naudin, J., and Cauwet, G.:
Impact of phytoplankton and bacterial production on nutrient and DOM uptake
in the Rhône River plume (NW Mediterranean), Mar. Ecol. Prog. Ser., 315, 43–54, https://doi.org/10.3354/meps315043, 2006.
Reffray, G., Fraunié, P., and Marsaleix, P.: Secondary flows induced by
wind forcing in the Rhône region of freshwater influence, Ocean
Dynam., 54, 179–196, https://doi.org/10.1007/s10236-003-0079-y, 2004.
Ribera d'Alcalà, M., Civitarese, G., Conversano, F., and Lavezza, R.:
Nutrient ratios and fluxes hint at overlooked processes in the Mediterranean
Sea, J. Geophys. Res.-Oceans, 108, C9,
https://doi.org/10.1029/2002JC001650, 2003.
Richon, C., Dutay, J.-C., Bopp, L., Le Vu, B., Orr, J. C., Somot, S., and Dulac, F.: Biogeochemical response of the Mediterranean Sea to the transient SRES-A2 climate change scenario, Biogeosciences, 16, 135–165, https://doi.org/10.5194/bg-16-135-2019, 2019.
Ross, O. N., Fraysse, M., Pinazo, C., and Pairaud, I.: Impact of an intrusion by the
Northern Current on the biogeochemistry in the eastern Gulf of Lion, NW
Mediterranean, Estuar. Coast. Shelf Sci., 170, 1–9,
https://doi.org/10.1016/j.ecss.2015.12.022, 2016.
Sackmann, B. S., Perry, M. J., and Eriksen, C. C.: Seaglider observations of variability in daytime fluorescence quenching of chlorophyll-a in Northeastern Pacific coastal waters, Biogeosciences Discuss., 5, 2839–2865, https://doi.org/10.5194/bgd-5-2839-2008, 2008.
Sadaoui, M., Ludwig, W., Bourrin, F., and Raimbault, P.: Controls, budgets
and variability of riverine sediment fluxes to the Gulf of Lions (NW
Mediterranean Sea), J. Hydrol., 540, 1002–1015,
https://doi.org/10.1016/j.jhydrol.2016.07.012, 2016.
Sanchez-Vidal, A., Higueras, M., Martí, E., Liquete, C., Calafat, A.,
Kerhervé, P., and Canals, M.: Riverine transport of terrestrial organic
matter to the North Catalan margin, NW Mediterranean Sea, Prog. Oceanogr., 118, 71–80, https://doi.org/10.1016/j.pocean.2013.07.020,
2013.
Sanchez-Vidal, A., Pasqual, C., Kerhervé, P., Calafat, A., Heussner, S.,
Palanques, A., and Puig, P.: Impact of dense shelf water cascading on the
transfer of organic matter to the deep western Mediterranean basin,
Geophys. Res. Lett., 35, 5, https://doi.org/10.1029/2007GL032825,
2008.
Sempéré, R., CharrieÌre, B., Van Wambeke, F., and Cauwet, G.: Carbon
inputs of the Rhône River to the Mediterranean Sea: Biogeochemical
Implications, Global Biogeochem. Cy., 14, 669–681,
https://doi.org/10.1029/1999GB900069, 2000.
Soetaert, K., Herman, P. M. J., Middelburg, J. J., Heip, C., Smith, C. L.,
Tett, P., and Wild-Allen, K.: Numerical modelling of the shelf break
ecosystem: Reproducing benthic and pelagic measurements, Deep Sea Res. Pt. II, 48, 3141–3177, https://doi.org/10.1016/S0967-0645(01)00035-2, 2001.
Somot, S., Sevault, F., and Déqué, M.: Transient climate change
scenario simulation of the Mediterranean Sea for the twenty-first century
using a high-resolution ocean circulation model, Clim. Dynam., 27, 851–879,
https://doi.org/10.1007/s00382-006-0167-z, 2006.
Taucher, J. and Oschlies, A.: Can we predict the direction of marine
primary production change under global warming?, Geophys. Res. Lett., 38, 2, https://doi.org/10.1029/2010GL045934, 2011.
Teruzzi, A., Bolzon, G., Salon, S., Lazzari, P., Solidoro, C., and
Cossarini, G.: Assimilation of coastal and open sea biogeochemical data to
improve phytoplankton simulation in the Mediterranean Sea, Ocean Modell.,
132, 46–60, https://doi.org/10.1016/j.ocemod.2018.09.007, 2018.
Testor, P., Mortier, L., Coppola, L., Claustre, H., D'Ortenzio, F., Bourrin,
F., Durrieu de Madron, X., and Raimbault, P.: Tucpa deployment (EGO glider:
tenuse) (Mediterranean Sea – Western basin), SEANOE,
https://doi.org/10.17882/56441, 2018.
Thomalla, S. J., Moutier, W., Ryan-Keogh, T. J., Gregor, L., and Schütt,
J.: An optimized method for correcting fluorescence quenching using optical
backscattering on autonomous platforms, Limnol. Oceanogr.-Meth.,
16, 132–144, https://doi.org/10.1002/lom3.10234, 2018.
Thunell, R., Benitez-Nelson, C., Varela, R., Astor, Y., and Muller-Karger,
F.: Particulate organic carbon fluxes along upwelling-dominated continental
margins: Rates and mechanisms, Global Biogeochem. Cy., 21, 1,
https://doi.org/10.1029/2006GB002793, 2007.
Tusseau-Vuillemin, M. H., Mortier, L., and Herbaut, C.: Modeling nitrate
fluxes in an open coastal environment (Gulf of Lions): Transport versus
biogeochemical processes, J. Geophys. Res.-Oceans, 103,
7693–7708, https://doi.org/10.1029/97JC03709, 1998.
Ulses, C., Auger, P.-A., Soetaert, K., Marsaleix, P., Diaz, F., Coppola, L.,
and Estournel, C.: Budget of organic carbon in the North-Western
Mediterranean Open Sea over the period 2004–2008 using 3-D coupled
physical-biogeochemical modeling, J. Geophys. Res.-Oceans,
121, 7026–7055, https://doi.org/10.1002/2016JC011818, 2016.
Ulses, C., Estournel, C., Bonnin, J., Durrieu de Madron, X., and Marsaleix,
P.: Impact of storms and dense water cascading on shelf-slope exchanges in
the Gulf of Lion (NW Mediterranean), J. Geophys. Res., 113,
C02010, https://doi.org/10.1029/2006JC00379, 2008a.
Ulses, C., Estournel, C., Durrieu de Madron, X., and Palanques, A.:
Suspended sediment transport in the Gulf of Lions (NW Mediterranean): Impact
of extreme storms and floods, Cont. Shelf Res., 28, 2048–2070,
https://doi.org/10.1016/j.csr.2008.01.015, 2008b.
Ulses, C., Estournel, C., Puig, P., Durrieu de Madron, X., and Marsaleix,
P.: Dense shelf water cascading in the northwestern Mediterranean during the
cold winter 2005: Quantification of the export through the Gulf of Lion and
the Catalan margin, Geophys. Res. Lett., 35, 7,
https://doi.org/10.1029/2008GL033257, 2008c.
Short summary
The Gulf of Lion shelf is one of the most productive areas in the Mediterranean. A model is used to study the mechanisms that drive the particulate organic carbon (POC). The model reproduces the annual cycle of primary production well. The shelf appears as an autotrophic ecosystem with a high production and as a source of POC for the adjacent basin. The increase in temperature induced by climate change could impact the trophic status of the shelf.
The Gulf of Lion shelf is one of the most productive areas in the Mediterranean. A model is used...
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