Articles | Volume 20, issue 13
https://doi.org/10.5194/bg-20-2743-2023
https://doi.org/10.5194/bg-20-2743-2023
Research article
 | 
13 Jul 2023
Research article |  | 13 Jul 2023

Estimating the seasonal impact of optically significant water constituents on surface heating rates in the western Baltic Sea

Bronwyn E. Cahill, Piotr Kowalczuk, Lena Kritten, Ulf Gräwe, John Wilkin, and Jürgen Fischer

Related authors

Non-Redfieldian carbon model for the Baltic Sea (ERGOM version 1.2) – implementation and budget estimates
Thomas Neumann, Hagen Radtke, Bronwyn Cahill, Martin Schmidt, and Gregor Rehder
Geosci. Model Dev., 15, 8473–8540, https://doi.org/10.5194/gmd-15-8473-2022,https://doi.org/10.5194/gmd-15-8473-2022, 2022
Short summary
Ecological ReGional Ocean Model with vertically resolved sediments (ERGOM SED 1.0): coupling benthic and pelagic biogeochemistry of the south-western Baltic Sea
Hagen Radtke, Marko Lipka, Dennis Bunke, Claudia Morys, Jana Woelfel, Bronwyn Cahill, Michael E. Böttcher, Stefan Forster, Thomas Leipe, Gregor Rehder, and Thomas Neumann
Geosci. Model Dev., 12, 275–320, https://doi.org/10.5194/gmd-12-275-2019,https://doi.org/10.5194/gmd-12-275-2019, 2019
Short summary

Related subject area

Biogeochemistry: Bio-Optics
Chromophoric dissolved organic matter dynamics revealed through the optimization of an optical–biogeochemical model in the northwestern Mediterranean Sea
Eva Álvarez, Gianpiero Cossarini, Anna Teruzzi, Jorn Bruggeman, Karsten Bolding, Stefano Ciavatta, Vincenzo Vellucci, Fabrizio D'Ortenzio, David Antoine, and Paolo Lazzari
Biogeosciences, 20, 4591–4624, https://doi.org/10.5194/bg-20-4591-2023,https://doi.org/10.5194/bg-20-4591-2023, 2023
Short summary
Variability of light absorption coefficients by different size fractions of suspensions in the southern Baltic Sea
Justyna Meler, Dagmara Litwicka, and Monika Zabłocka
Biogeosciences, 20, 2525–2551, https://doi.org/10.5194/bg-20-2525-2023,https://doi.org/10.5194/bg-20-2525-2023, 2023
Short summary
Spatial and temporal dynamics of suspended sediment concentrations in coastal waters of the South China Sea, off Sarawak, Borneo: ocean colour remote sensing observations and analysis
Jenny Choo, Nagur Cherukuru, Eric Lehmann, Matt Paget, Aazani Mujahid, Patrick Martin, and Moritz Müller
Biogeosciences, 19, 5837–5857, https://doi.org/10.5194/bg-19-5837-2022,https://doi.org/10.5194/bg-19-5837-2022, 2022
Short summary
Comment on “Fundamental molecules of life are pigments which arose and co-evolved as a response to the thermodynamic imperative of dissipating the prevailing solar spectrum” by K. Michaelian and A. Simeonov (2015)
Lars Olof Björn
Biogeosciences, 19, 1013–1019, https://doi.org/10.5194/bg-19-1013-2022,https://doi.org/10.5194/bg-19-1013-2022, 2022
Short summary
A limited effect of sub-tropical typhoons on phytoplankton dynamics
Fei Chai, Yuntao Wang, Xiaogang Xing, Yunwei Yan, Huijie Xue, Mark Wells, and Emmanuel Boss
Biogeosciences, 18, 849–859, https://doi.org/10.5194/bg-18-849-2021,https://doi.org/10.5194/bg-18-849-2021, 2021
Short summary

Cited articles

Aas, E.: Two-stream irradiance model for deep waters, Appl. Optics, 26, 2095–2101, https://doi.org/10.1364/AO.26.002095, 1987. 
Ackleson, S., Balch, W., and Holligan, P.: Response of water-leaving radiance to particulate calcite and chlorophyll a concentrations: A model for Gulf of Maine coccolithophore blooms, J. Geophys. Res., 99, 7483–7499, https://doi.org/10.1029/93JC02150, 1994. 
Alikas, K., Kratzer, S., Reinart, A., Kauer, T., and Paavel, B.: Robust remote sensing algorithms to derive the diffuse attenuation coefficient for lakes and coastal waters, Limnol. Oceanogr. Meth., 13, 402–415, https://doi.org/10.1002/lom3.10033, 2015. 
Belkin, I.: Rapid warming of large marine ecosystems, Prog. Oceanogr., 81, 207–213, https://doi.org/10.1016/J.POCEAN.2009.04.011, 2009. 
Bidigare, R. R., Ondrusek, M. E., Morrow, J. H., and Kiefer, D. A.: In vivo absorption properties of algal pigments, P. SPIE, 1302, 290–302, https://doi.org/10.1117/12.21451, 1990. 
Download
Short summary
We quantify the impact of optically significant water constituents on surface heating rates and thermal energy fluxes in the western Baltic Sea. During productive months in 2018 (April to September) we found that the combined effect of coloured dissolved organic matter and particulate absorption contributes to sea surface heating of between 0.4 and 0.9 K m−1 d−1 and a mean loss of heat (ca. 5 W m−2) from the sea to the atmosphere. This may be important for regional heat balance budgets.
Altmetrics
Final-revised paper
Preprint