Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica
Abstract The temporal changes in dissolved inorganic (DIC) and organic carbon concentrations (DOC) were monitored from late autumn to spring 2006 in the Scholaert Channel, West Antarctic Peninsula. Surface DIC spanned a small range (2163.3 to 2194.5 μmol kg -1 ), increasing from late autumn to winte...
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2009
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Online Access: | http://dx.doi.org/10.1017/s0954102009990666 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102009990666 |
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crcambridgeupr:10.1017/s0954102009990666 2024-04-07T07:47:31+00:00 Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica Wang, Xiaomeng Yang, Gui-Peng López, Damian Ferreyra, Gustavo Lemarchand, Karine Xie, Huixiang 2009 http://dx.doi.org/10.1017/s0954102009990666 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102009990666 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 22, issue 2, page 145-156 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2009 crcambridgeupr https://doi.org/10.1017/s0954102009990666 2024-03-08T00:34:59Z Abstract The temporal changes in dissolved inorganic (DIC) and organic carbon concentrations (DOC) were monitored from late autumn to spring 2006 in the Scholaert Channel, West Antarctic Peninsula. Surface DIC spanned a small range (2163.3 to 2194.5 μmol kg -1 ), increasing from late autumn to winter and then decreasing in spring. An excess of DOC (7.0–63.6 μmol l -1 ), against a deepwater background concentration of 44 μmol l -1 , existed in the surface mixed layer throughout the sampling period. Mass-balance budgeting indicates that the DIC dynamics were primarily governed by remineralization in winter and by primary production in spring despite very low biomass of both autotrophic and heterotrophic organisms. The net community production (7.3 mmol C m -2 d -1 ) in spring was mainly partitioned to DOC accumulation (3.6 mmol m -2 d -1 ) and downward export of particulate organic carbon (POC) (2.9 mmol m -2 d -1 ) rather than POC accretion (0.8 mmol m -2 d -1 ) in the surface mixed layer. The study area acted as a source of CO 2 to the atmosphere in winter (∼0.8 mmol m -2 d -1 ) and a sink in spring (2.3–5.3 mmol m -2 d -1 ), and hence was not a one-way CO 2 sink as had been previously hypothesized for marginal sea ice zones. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Sea ice West Antarctica Cambridge University Press Antarctic Antarctic Peninsula West Antarctica Antarctic Science 22 2 145 156 |
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Open Polar |
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Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Wang, Xiaomeng Yang, Gui-Peng López, Damian Ferreyra, Gustavo Lemarchand, Karine Xie, Huixiang Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract The temporal changes in dissolved inorganic (DIC) and organic carbon concentrations (DOC) were monitored from late autumn to spring 2006 in the Scholaert Channel, West Antarctic Peninsula. Surface DIC spanned a small range (2163.3 to 2194.5 μmol kg -1 ), increasing from late autumn to winter and then decreasing in spring. An excess of DOC (7.0–63.6 μmol l -1 ), against a deepwater background concentration of 44 μmol l -1 , existed in the surface mixed layer throughout the sampling period. Mass-balance budgeting indicates that the DIC dynamics were primarily governed by remineralization in winter and by primary production in spring despite very low biomass of both autotrophic and heterotrophic organisms. The net community production (7.3 mmol C m -2 d -1 ) in spring was mainly partitioned to DOC accumulation (3.6 mmol m -2 d -1 ) and downward export of particulate organic carbon (POC) (2.9 mmol m -2 d -1 ) rather than POC accretion (0.8 mmol m -2 d -1 ) in the surface mixed layer. The study area acted as a source of CO 2 to the atmosphere in winter (∼0.8 mmol m -2 d -1 ) and a sink in spring (2.3–5.3 mmol m -2 d -1 ), and hence was not a one-way CO 2 sink as had been previously hypothesized for marginal sea ice zones. |
format |
Article in Journal/Newspaper |
author |
Wang, Xiaomeng Yang, Gui-Peng López, Damian Ferreyra, Gustavo Lemarchand, Karine Xie, Huixiang |
author_facet |
Wang, Xiaomeng Yang, Gui-Peng López, Damian Ferreyra, Gustavo Lemarchand, Karine Xie, Huixiang |
author_sort |
Wang, Xiaomeng |
title |
Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica |
title_short |
Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica |
title_full |
Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica |
title_fullStr |
Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica |
title_full_unstemmed |
Late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at Scholaert Channel, West Antarctica |
title_sort |
late autumn to spring changes in the inorganic and organic carbon dissolved in the water column at scholaert channel, west antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2009 |
url |
http://dx.doi.org/10.1017/s0954102009990666 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102009990666 |
geographic |
Antarctic Antarctic Peninsula West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Sea ice West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctic Science Antarctica Sea ice West Antarctica |
op_source |
Antarctic Science volume 22, issue 2, page 145-156 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102009990666 |
container_title |
Antarctic Science |
container_volume |
22 |
container_issue |
2 |
container_start_page |
145 |
op_container_end_page |
156 |
_version_ |
1795674642229231616 |