Articles | Volume 15, issue 7
https://doi.org/10.5194/bg-15-1895-2018
https://doi.org/10.5194/bg-15-1895-2018
Research article
 | 
03 Apr 2018
Research article |  | 03 Apr 2018

Biological production in the Indian Ocean upwelling zones –Part 1: refined estimation via the use of a variable compensation depth in ocean carbon models

Mohanan Geethalekshmi Sreeush, Vinu Valsala, Sreenivas Pentakota, Koneru Venkata Siva Rama Prasad, and Raghu Murtugudde

Related authors

Multi-centennial climate change in a warming world beyond 2100
Sun-Seon Lee, Sahil Sharma, Nan Rosenbloom, Keith B. Rodgers, Ji-Eun Kim, Eun Young Kwon, Christian L. E. Franzke, In-Won Kim, Mohanan Geethalekshmi Sreeush, and Karl Stein
EGUsphere, https://doi.org/10.5194/egusphere-2024-3377,https://doi.org/10.5194/egusphere-2024-3377, 2024
Short summary

Related subject area

Biogeochemistry: Open Ocean
Intense and localized export of selected marine snow types at eddy edges in the South Atlantic Ocean
Alexandre Accardo, Rémi Laxenaire, Alberto Baudena, Sabrina Speich, Rainer Kiko, and Lars Stemmann
Biogeosciences, 22, 1183–1201, https://doi.org/10.5194/bg-22-1183-2025,https://doi.org/10.5194/bg-22-1183-2025, 2025
Short summary
Spatial distributions of iron and manganese in surface waters of the Arctic's Laptev and East Siberian seas
Naoya Kanna, Kazutaka Tateyama, Takuji Waseda, Anna Timofeeva, Maria Papadimitraki, Laura Whitmore, Hajime Obata, Daiki Nomura, Hiroshi Ogawa, Youhei Yamashita, and Igor Polyakov
Biogeosciences, 22, 1057–1076, https://doi.org/10.5194/bg-22-1057-2025,https://doi.org/10.5194/bg-22-1057-2025, 2025
Short summary
Climate-driven shifts in Southern Ocean primary producers and biogeochemistry in CMIP6 models
Ben J. Fisher, Alex J. Poulton, Michael P. Meredith, Kimberlee Baldry, Oscar Schofield, and Sian F. Henley
Biogeosciences, 22, 975–994, https://doi.org/10.5194/bg-22-975-2025,https://doi.org/10.5194/bg-22-975-2025, 2025
Short summary
Ocean acidification trends and carbonate system dynamics across the North Atlantic subpolar gyre water masses during 2009–2019
David Curbelo-Hernández, Fiz F. Pérez, Melchor González-Dávila, Sergey V. Gladyshev, Aridane G. González, David González-Santana, Antón Velo, Alexey Sokov, and J. Magdalena Santana-Casiano
Biogeosciences, 21, 5561–5589, https://doi.org/10.5194/bg-21-5561-2024,https://doi.org/10.5194/bg-21-5561-2024, 2024
Short summary
Sedimentary organic matter signature hints at the phytoplankton-driven biological carbon pump in the central Arabian Sea
Medhavi Pandey, Haimanti Biswas, Daniel Birgel, Nicole Burdanowitz, and Birgit Gaye
Biogeosciences, 21, 4681–4698, https://doi.org/10.5194/bg-21-4681-2024,https://doi.org/10.5194/bg-21-4681-2024, 2024
Short summary

Cited articles

Anderson, L. A. and Sarmiento, J. L.: Global ocean phosphate and oxygen simulations, Global Biogeochem. Cy., 9, 621–636, https://doi.org/10.1029/95GB01902, 1995. 
Asselin, R.: Frequency filter for time integrations, Mon. Weather Rev., 100, 487–490, https://doi.org/10.1175/1520-0493(1972)100<0487:FFFTI>2.3.CO;2, 1972. 
Banse, K.: Seasonality of phytoplankton chlorophyll in the central and northern Arabian Sea, Deep-Sea Res., 34, 713–723, https://doi.org/10.1016/0198-0149(87)90032-X, 1987. 
Banse, K. and McClain, C. R.: Winter blooms of phytoplankton in the Arabian Sea as observed by the Coastal Zone Color Scanner, Mar. Ecol. Prog. Ser., 34, 201–211, 1986. 
Barber, R. T., Marra, J., Bidigare, R. C., Codispoti, L. A., Halpern, D., Johnson, Z., Latasa, M., Goericke, R., and Smith, S. L.: Primary productivity and its regulation in the Arabian Sea during 1995, Deep-Sea. Res. Pt. II, 48, 1127–1172, https://doi.org/10.1016/S0967-0645(00)00134-X, 2001. 
Download
Short summary
A simple modification to the existing methodology for calculating biological production in global ocean model is proposed here. A space- and time-varying production depth is found in the upper few metres of the ocean based on sunlight and nutrient availability. This new method is tested for Indian Ocean biological production zones. With this new method the carbon cycling in the surface of the Indian Ocean is simulated better in the model. A reason for the improvement is detailed in the paper.
Share
Altmetrics
Final-revised paper
Preprint