Nutrient and dissolved inorganic carbon variability in the North Pacific
Abstract A compilation of surface water nutrient (phosphate, nitrate, and silicate) and partial pressure of CO 2 ( p CO 2 ) observations from 1961 to 2016 reveals seasonal and interannual variability in the North Pacific. Nutrients and calculated dissolved inorganic carbon (DIC) reach maximum concen...
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crspringernat:10.1007/s10872-020-00561-7 2023-05-15T15:43:54+02:00 Nutrient and dissolved inorganic carbon variability in the North Pacific Yasunaka, Sayaka Mitsudera, Humio Whitney, Frank Nakaoka, Shin-ichiro Japan Society for the Promotion of Science Ministry of the Environment 2020 http://dx.doi.org/10.1007/s10872-020-00561-7 https://link.springer.com/content/pdf/10.1007/s10872-020-00561-7.pdf https://link.springer.com/article/10.1007/s10872-020-00561-7/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Journal of Oceanography volume 77, issue 1, page 3-16 ISSN 0916-8370 1573-868X Oceanography journal-article 2020 crspringernat https://doi.org/10.1007/s10872-020-00561-7 2021-11-02T13:18:39Z Abstract A compilation of surface water nutrient (phosphate, nitrate, and silicate) and partial pressure of CO 2 ( p CO 2 ) observations from 1961 to 2016 reveals seasonal and interannual variability in the North Pacific. Nutrients and calculated dissolved inorganic carbon (DIC) reach maximum concentrations in March and minimum in August. Nutrient and DIC variability is in-phase (anti-phase) with changes in the mixed layer depth (sea surface temperature) north of 30 °N, and it is anti-phase (in-phase) with changes in Chl-a north of 40 °N (in 30 °N–40 °N). Seasonal drawdown of nutrients and DIC is larger toward the northwest and shows a local maximum in the boundary region between the subarctic and subtropics. Stoichiometric ratios of seasonal drawdown show that, compared to nitrate, silicate drawdown is large in the northwestern subarctic including the Bering and Okhotsk seas, and drawdown of carbon is larger toward the south. Net community production in mixed layer from March to July is estimated to be more than 6 gC/m 2 /mo in the boundary region between the subarctic and subtropics, the western subarctic, the Gulf of Alaska, and the Bering Sea. Nutrient and DIC concentrations vary with the Pacific Decadal Oscillation and the North Pacific Gyre Oscillation which cause changes in horizontal advection and vertical mixing. The DIC trend is positive in all analysis area and large in the western subtropics (> 1.0 μmol/l/yr). Averaged over the analysis area, it is increasing by 0.77 ± 0.03 μmol/l/yr (0.75 ± 0.02 μmol/kg/yr). Article in Journal/Newspaper Bering Sea Subarctic Alaska Springer Nature (via Crossref) Bering Sea Gulf of Alaska Okhotsk Pacific Journal of Oceanography 77 1 3 16 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Oceanography |
spellingShingle |
Oceanography Yasunaka, Sayaka Mitsudera, Humio Whitney, Frank Nakaoka, Shin-ichiro Nutrient and dissolved inorganic carbon variability in the North Pacific |
topic_facet |
Oceanography |
description |
Abstract A compilation of surface water nutrient (phosphate, nitrate, and silicate) and partial pressure of CO 2 ( p CO 2 ) observations from 1961 to 2016 reveals seasonal and interannual variability in the North Pacific. Nutrients and calculated dissolved inorganic carbon (DIC) reach maximum concentrations in March and minimum in August. Nutrient and DIC variability is in-phase (anti-phase) with changes in the mixed layer depth (sea surface temperature) north of 30 °N, and it is anti-phase (in-phase) with changes in Chl-a north of 40 °N (in 30 °N–40 °N). Seasonal drawdown of nutrients and DIC is larger toward the northwest and shows a local maximum in the boundary region between the subarctic and subtropics. Stoichiometric ratios of seasonal drawdown show that, compared to nitrate, silicate drawdown is large in the northwestern subarctic including the Bering and Okhotsk seas, and drawdown of carbon is larger toward the south. Net community production in mixed layer from March to July is estimated to be more than 6 gC/m 2 /mo in the boundary region between the subarctic and subtropics, the western subarctic, the Gulf of Alaska, and the Bering Sea. Nutrient and DIC concentrations vary with the Pacific Decadal Oscillation and the North Pacific Gyre Oscillation which cause changes in horizontal advection and vertical mixing. The DIC trend is positive in all analysis area and large in the western subtropics (> 1.0 μmol/l/yr). Averaged over the analysis area, it is increasing by 0.77 ± 0.03 μmol/l/yr (0.75 ± 0.02 μmol/kg/yr). |
author2 |
Japan Society for the Promotion of Science Ministry of the Environment |
format |
Article in Journal/Newspaper |
author |
Yasunaka, Sayaka Mitsudera, Humio Whitney, Frank Nakaoka, Shin-ichiro |
author_facet |
Yasunaka, Sayaka Mitsudera, Humio Whitney, Frank Nakaoka, Shin-ichiro |
author_sort |
Yasunaka, Sayaka |
title |
Nutrient and dissolved inorganic carbon variability in the North Pacific |
title_short |
Nutrient and dissolved inorganic carbon variability in the North Pacific |
title_full |
Nutrient and dissolved inorganic carbon variability in the North Pacific |
title_fullStr |
Nutrient and dissolved inorganic carbon variability in the North Pacific |
title_full_unstemmed |
Nutrient and dissolved inorganic carbon variability in the North Pacific |
title_sort |
nutrient and dissolved inorganic carbon variability in the north pacific |
publisher |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1007/s10872-020-00561-7 https://link.springer.com/content/pdf/10.1007/s10872-020-00561-7.pdf https://link.springer.com/article/10.1007/s10872-020-00561-7/fulltext.html |
geographic |
Bering Sea Gulf of Alaska Okhotsk Pacific |
geographic_facet |
Bering Sea Gulf of Alaska Okhotsk Pacific |
genre |
Bering Sea Subarctic Alaska |
genre_facet |
Bering Sea Subarctic Alaska |
op_source |
Journal of Oceanography volume 77, issue 1, page 3-16 ISSN 0916-8370 1573-868X |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s10872-020-00561-7 |
container_title |
Journal of Oceanography |
container_volume |
77 |
container_issue |
1 |
container_start_page |
3 |
op_container_end_page |
16 |
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1766378120110145536 |