The spatiotemporal dynamics of the sources and sinks of CO 2 in the global coastal ocean
In contrast to the open ocean, the sources and sinks for atmospheric carbon dioxide (CO 2 ) in the coastal seas are poorly constrained and understood. Here we address this knowledge gap by analyzing the spatial and temporal variability of the coastal air‐sea flux of CO 2 ( F CO 2 ) using a recent hi...
Published in: | Global Biogeochemical Cycles |
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ftvliz:oai:oma.vliz.be:322808 2023-05-15T15:10:44+02:00 The spatiotemporal dynamics of the sources and sinks of CO 2 in the global coastal ocean Roobaert, A. Laruelle, G.G. Landschützer, P. Gruber, N. Chou, L. Regnier, P. 2019 https://www.vliz.be/nl/open-marien-archief?module=ref&refid=322808 en eng info:eu-repo/semantics/altIdentifier/wos/000502677300001 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1029/2019GB006239 https://www.vliz.be/nl/open-marien-archief?module=ref&refid=322808 info:eu-repo/semantics/restrictedAccess %3Ci%3EGlobal+Biogeochem.+Cycles+33%2812%29%3C%2Fi%3E%3A+1693-1714.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1029%2F2019GB006239%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1029%2F2019GB006239%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftvliz https://doi.org/10.1029/2019GB006239 2022-09-21T22:24:27Z In contrast to the open ocean, the sources and sinks for atmospheric carbon dioxide (CO 2 ) in the coastal seas are poorly constrained and understood. Here we address this knowledge gap by analyzing the spatial and temporal variability of the coastal air‐sea flux of CO 2 ( F CO 2 ) using a recent high‐resolution (0.25°) monthly climatology for coastal sea surface partial pressure in CO 2 ( p CO 2 ). Coastal regions are characterized by CO 2 sinks at temperate and high latitudes and by CO 2 sources at low latitude and in the tropics, with annual mean CO 2 flux densities comparable in magnitude and pattern to those of the adjacent open ocean with the exception of river‐dominated systems. The seasonal variations in F CO 2 are large, often exceeding 2 mol C m −2 year −1 , a magnitude similar to the variations exhibited across latitudes. The majority of these seasonal variations stems from the air‐sea p CO 2 difference, although changes in wind speed and sea ice cover can also be significant regionally. Globally integrated, the coastal seas act currently as a CO 2 sink of −0.20 ± 0.02 Pg C year −1 , with a more intense uptake occurring in summer because of the disproportionate influence of high‐latitude shelves in the Northern Hemisphere. Combined with estimates of the carbon sinks in the open ocean and the Arctic, this gives for the global ocean, averaged over the 1998 to 2015 period an annual net CO 2 uptake of −1.7 ± 0.3 Pg C year −1 . Article in Journal/Newspaper Arctic Sea ice Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Arctic Global Biogeochemical Cycles 33 12 1693 1714 |
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Open Polar |
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Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
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ftvliz |
language |
English |
description |
In contrast to the open ocean, the sources and sinks for atmospheric carbon dioxide (CO 2 ) in the coastal seas are poorly constrained and understood. Here we address this knowledge gap by analyzing the spatial and temporal variability of the coastal air‐sea flux of CO 2 ( F CO 2 ) using a recent high‐resolution (0.25°) monthly climatology for coastal sea surface partial pressure in CO 2 ( p CO 2 ). Coastal regions are characterized by CO 2 sinks at temperate and high latitudes and by CO 2 sources at low latitude and in the tropics, with annual mean CO 2 flux densities comparable in magnitude and pattern to those of the adjacent open ocean with the exception of river‐dominated systems. The seasonal variations in F CO 2 are large, often exceeding 2 mol C m −2 year −1 , a magnitude similar to the variations exhibited across latitudes. The majority of these seasonal variations stems from the air‐sea p CO 2 difference, although changes in wind speed and sea ice cover can also be significant regionally. Globally integrated, the coastal seas act currently as a CO 2 sink of −0.20 ± 0.02 Pg C year −1 , with a more intense uptake occurring in summer because of the disproportionate influence of high‐latitude shelves in the Northern Hemisphere. Combined with estimates of the carbon sinks in the open ocean and the Arctic, this gives for the global ocean, averaged over the 1998 to 2015 period an annual net CO 2 uptake of −1.7 ± 0.3 Pg C year −1 . |
format |
Article in Journal/Newspaper |
author |
Roobaert, A. Laruelle, G.G. Landschützer, P. Gruber, N. Chou, L. Regnier, P. |
spellingShingle |
Roobaert, A. Laruelle, G.G. Landschützer, P. Gruber, N. Chou, L. Regnier, P. The spatiotemporal dynamics of the sources and sinks of CO 2 in the global coastal ocean |
author_facet |
Roobaert, A. Laruelle, G.G. Landschützer, P. Gruber, N. Chou, L. Regnier, P. |
author_sort |
Roobaert, A. |
title |
The spatiotemporal dynamics of the sources and sinks of CO 2 in the global coastal ocean |
title_short |
The spatiotemporal dynamics of the sources and sinks of CO 2 in the global coastal ocean |
title_full |
The spatiotemporal dynamics of the sources and sinks of CO 2 in the global coastal ocean |
title_fullStr |
The spatiotemporal dynamics of the sources and sinks of CO 2 in the global coastal ocean |
title_full_unstemmed |
The spatiotemporal dynamics of the sources and sinks of CO 2 in the global coastal ocean |
title_sort |
spatiotemporal dynamics of the sources and sinks of co 2 in the global coastal ocean |
publishDate |
2019 |
url |
https://www.vliz.be/nl/open-marien-archief?module=ref&refid=322808 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/wos/000502677300001 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1029/2019GB006239 https://www.vliz.be/nl/open-marien-archief?module=ref&refid=322808 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2019GB006239 |
container_title |
Global Biogeochemical Cycles |
container_volume |
33 |
container_issue |
12 |
container_start_page |
1693 |
op_container_end_page |
1714 |
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1766341698757066752 |