Interannual variability of net community production and air-sea CO 2 flux in a naturally iron fertilized region of the Southern Ocean (Kerguelen Plateau)
Abstract The interannual variability of net community production (NCP) and air-sea CO 2 flux in a naturally iron fertilized and productive area of the Southern Ocean (Kerguelen plateau) was investigated using a 1D biogeochemical model driven by satellite chlorophyll, sea surface temperature and wind...
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Online Access: | http://dx.doi.org/10.1017/s0954102011000411 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000411 |
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crcambridgeupr:10.1017/s0954102011000411 2024-06-23T07:48:04+00:00 Interannual variability of net community production and air-sea CO 2 flux in a naturally iron fertilized region of the Southern Ocean (Kerguelen Plateau) Jouandet, Marie Paule Blain, Stephane Metzl, Nicolas Mongin, Mathieu 2011 http://dx.doi.org/10.1017/s0954102011000411 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000411 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 23, issue 6, page 589-596 ISSN 0954-1020 1365-2079 journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0954102011000411 2024-06-12T04:02:36Z Abstract The interannual variability of net community production (NCP) and air-sea CO 2 flux in a naturally iron fertilized and productive area of the Southern Ocean (Kerguelen plateau) was investigated using a 1D biogeochemical model driven by satellite chlorophyll, sea surface temperature and wind speed data for the 1997–2007 period. The model simulates the low f CO 2 and dissolved inorganic carbon (DIC) measured during summers 2004–05, 2005–06, 2006–07 and the high NCP derived from a seasonal carbon budget in the surface waters of these blooms. Although satellite data show high interannual variability in the dynamics and magnitude of the bloom during the 1997–2007 decade, the simulated interannual variability of the NCP was only ± 14%. This unexpected result could be due to the combined effect of both the duration and the start date of the bloom, the latter determining the depth of the mixed layer used to compute the NCP. In the productive area, the interannual variability of air-sea CO 2 flux (± 13%) was not only driven by the biological effect but also by the solubility effect. Our results contrast with previous studies in the high nutrient, low chlorophyll regions of the Southern Ocean. Article in Journal/Newspaper Antarctic Science Southern Ocean Cambridge University Press Kerguelen Southern Ocean Antarctic Science 23 6 589 596 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract The interannual variability of net community production (NCP) and air-sea CO 2 flux in a naturally iron fertilized and productive area of the Southern Ocean (Kerguelen plateau) was investigated using a 1D biogeochemical model driven by satellite chlorophyll, sea surface temperature and wind speed data for the 1997–2007 period. The model simulates the low f CO 2 and dissolved inorganic carbon (DIC) measured during summers 2004–05, 2005–06, 2006–07 and the high NCP derived from a seasonal carbon budget in the surface waters of these blooms. Although satellite data show high interannual variability in the dynamics and magnitude of the bloom during the 1997–2007 decade, the simulated interannual variability of the NCP was only ± 14%. This unexpected result could be due to the combined effect of both the duration and the start date of the bloom, the latter determining the depth of the mixed layer used to compute the NCP. In the productive area, the interannual variability of air-sea CO 2 flux (± 13%) was not only driven by the biological effect but also by the solubility effect. Our results contrast with previous studies in the high nutrient, low chlorophyll regions of the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Jouandet, Marie Paule Blain, Stephane Metzl, Nicolas Mongin, Mathieu |
spellingShingle |
Jouandet, Marie Paule Blain, Stephane Metzl, Nicolas Mongin, Mathieu Interannual variability of net community production and air-sea CO 2 flux in a naturally iron fertilized region of the Southern Ocean (Kerguelen Plateau) |
author_facet |
Jouandet, Marie Paule Blain, Stephane Metzl, Nicolas Mongin, Mathieu |
author_sort |
Jouandet, Marie Paule |
title |
Interannual variability of net community production and air-sea CO 2 flux in a naturally iron fertilized region of the Southern Ocean (Kerguelen Plateau) |
title_short |
Interannual variability of net community production and air-sea CO 2 flux in a naturally iron fertilized region of the Southern Ocean (Kerguelen Plateau) |
title_full |
Interannual variability of net community production and air-sea CO 2 flux in a naturally iron fertilized region of the Southern Ocean (Kerguelen Plateau) |
title_fullStr |
Interannual variability of net community production and air-sea CO 2 flux in a naturally iron fertilized region of the Southern Ocean (Kerguelen Plateau) |
title_full_unstemmed |
Interannual variability of net community production and air-sea CO 2 flux in a naturally iron fertilized region of the Southern Ocean (Kerguelen Plateau) |
title_sort |
interannual variability of net community production and air-sea co 2 flux in a naturally iron fertilized region of the southern ocean (kerguelen plateau) |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0954102011000411 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000411 |
geographic |
Kerguelen Southern Ocean |
geographic_facet |
Kerguelen Southern Ocean |
genre |
Antarctic Science Southern Ocean |
genre_facet |
Antarctic Science Southern Ocean |
op_source |
Antarctic Science volume 23, issue 6, page 589-596 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102011000411 |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
6 |
container_start_page |
589 |
op_container_end_page |
596 |
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1802638458833862656 |