North-South asymmetry in the modeled phytoplankton community response to climate change over the 21st century
Author Posting. © American Geophysical Union, 2013. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycles 27 (2013): 1274–1290, doi:10.1002/2013GB004599. Here we analyze t...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/6436 2023-05-15T18:18:52+02:00 North-South asymmetry in the modeled phytoplankton community response to climate change over the 21st century Marinov, Irina Doney, Scott C. Lima, Ivan D. Lindsay, Keith Moore, J. Keith Mahowald, Natalie M. 2013-12-20 text/plain application/pdf https://hdl.handle.net/1912/6436 en_US eng John Wiley & Sons https://doi.org/10.1002/2013GB004599 Global Biogeochemical Cycles 27 (2013): 1274–1290 https://hdl.handle.net/1912/6436 doi:10.1002/2013GB004599 Global Biogeochemical Cycles 27 (2013): 1274–1290 doi:10.1002/2013GB004599 Phytoplankton Climate change Ocean models Article 2013 ftwhoas https://doi.org/10.1002/2013GB004599 2022-05-28T22:59:01Z Author Posting. © American Geophysical Union, 2013. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycles 27 (2013): 1274–1290, doi:10.1002/2013GB004599. Here we analyze the impact of projected climate change on plankton ecology in all major ocean biomes over the 21st century, using a multidecade (1880–2090) experiment conducted with the Community Climate System Model (CCSM-3.1) coupled ocean-atmosphere-land-sea ice model. The climate response differs fundamentally in the Northern and Southern Hemispheres for diatom and small phytoplankton biomass and consequently for total biomass, primary, and export production. Increasing vertical stratification in the Northern Hemisphere oceans decreases the nutrient supply to the ocean surface. Resulting decreases in diatom and small phytoplankton biomass together with a relative shift from diatoms to small phytoplankton in the Northern Hemisphere result in decreases in the total primary and export production and export ratio, and a shift to a more oligotrophic, more efficiently recycled, lower biomass euphotic layer. By contrast, temperature and stratification increases are smaller in the Southern compared to the Northern Hemisphere. Additionally, a southward shift and increase in strength of the Southern Ocean westerlies act against increasing temperature and freshwater fluxes to destratify the water-column. The wind-driven, poleward shift in the Southern Ocean subpolar-subtropical boundary results in a poleward shift and increase in the frontal diatom bloom. This boundary shift, localized increases in iron supply, and the direct impact of warming temperatures on phytoplankton growth result in diatom increases in the Southern Hemisphere. An increase in diatoms and decrease in small phytoplankton partly compensate such that while total production and the efficiency of organic matter export to the deep ocean increase, total Southern Hemisphere ... Article in Journal/Newspaper Sea ice Southern Ocean Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Southern Ocean Global Biogeochemical Cycles 27 4 1274 1290 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Phytoplankton Climate change Ocean models |
spellingShingle |
Phytoplankton Climate change Ocean models Marinov, Irina Doney, Scott C. Lima, Ivan D. Lindsay, Keith Moore, J. Keith Mahowald, Natalie M. North-South asymmetry in the modeled phytoplankton community response to climate change over the 21st century |
topic_facet |
Phytoplankton Climate change Ocean models |
description |
Author Posting. © American Geophysical Union, 2013. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Global Biogeochemical Cycles 27 (2013): 1274–1290, doi:10.1002/2013GB004599. Here we analyze the impact of projected climate change on plankton ecology in all major ocean biomes over the 21st century, using a multidecade (1880–2090) experiment conducted with the Community Climate System Model (CCSM-3.1) coupled ocean-atmosphere-land-sea ice model. The climate response differs fundamentally in the Northern and Southern Hemispheres for diatom and small phytoplankton biomass and consequently for total biomass, primary, and export production. Increasing vertical stratification in the Northern Hemisphere oceans decreases the nutrient supply to the ocean surface. Resulting decreases in diatom and small phytoplankton biomass together with a relative shift from diatoms to small phytoplankton in the Northern Hemisphere result in decreases in the total primary and export production and export ratio, and a shift to a more oligotrophic, more efficiently recycled, lower biomass euphotic layer. By contrast, temperature and stratification increases are smaller in the Southern compared to the Northern Hemisphere. Additionally, a southward shift and increase in strength of the Southern Ocean westerlies act against increasing temperature and freshwater fluxes to destratify the water-column. The wind-driven, poleward shift in the Southern Ocean subpolar-subtropical boundary results in a poleward shift and increase in the frontal diatom bloom. This boundary shift, localized increases in iron supply, and the direct impact of warming temperatures on phytoplankton growth result in diatom increases in the Southern Hemisphere. An increase in diatoms and decrease in small phytoplankton partly compensate such that while total production and the efficiency of organic matter export to the deep ocean increase, total Southern Hemisphere ... |
format |
Article in Journal/Newspaper |
author |
Marinov, Irina Doney, Scott C. Lima, Ivan D. Lindsay, Keith Moore, J. Keith Mahowald, Natalie M. |
author_facet |
Marinov, Irina Doney, Scott C. Lima, Ivan D. Lindsay, Keith Moore, J. Keith Mahowald, Natalie M. |
author_sort |
Marinov, Irina |
title |
North-South asymmetry in the modeled phytoplankton community response to climate change over the 21st century |
title_short |
North-South asymmetry in the modeled phytoplankton community response to climate change over the 21st century |
title_full |
North-South asymmetry in the modeled phytoplankton community response to climate change over the 21st century |
title_fullStr |
North-South asymmetry in the modeled phytoplankton community response to climate change over the 21st century |
title_full_unstemmed |
North-South asymmetry in the modeled phytoplankton community response to climate change over the 21st century |
title_sort |
north-south asymmetry in the modeled phytoplankton community response to climate change over the 21st century |
publisher |
John Wiley & Sons |
publishDate |
2013 |
url |
https://hdl.handle.net/1912/6436 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Sea ice Southern Ocean |
genre_facet |
Sea ice Southern Ocean |
op_source |
Global Biogeochemical Cycles 27 (2013): 1274–1290 doi:10.1002/2013GB004599 |
op_relation |
https://doi.org/10.1002/2013GB004599 Global Biogeochemical Cycles 27 (2013): 1274–1290 https://hdl.handle.net/1912/6436 doi:10.1002/2013GB004599 |
op_doi |
https://doi.org/10.1002/2013GB004599 |
container_title |
Global Biogeochemical Cycles |
container_volume |
27 |
container_issue |
4 |
container_start_page |
1274 |
op_container_end_page |
1290 |
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1766195604324614144 |