Abrupt fluctuations in North Pacific Intermediate Water modulated changes in deglacial atmospheric CO2
As a major reservoir of heat and CO2, the Pacific Ocean is an important component of the global climate system, but the nature of its circulation under different climatic conditions remains poorly understood. We present sedimentary records of surface water hydrography and nutrient dynamics from the...
Published in: | Frontiers in Marine Science |
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Language: | English |
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FRONTIERS MEDIA SA
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/179983 2023-05-15T15:12:46+02:00 Abrupt fluctuations in North Pacific Intermediate Water modulated changes in deglacial atmospheric CO2 Liu, Yanguang Qiu, Yue Li, Dongling Artemova, Antonina V. Zhang, Yuying Bosin, Aleksandr A. Gorbarenko, Sergey A. Liu, Qingsong Zhao, Debo Sha, Longbin Zhong, Yi 2022-09-05 http://ir.qdio.ac.cn/handle/337002/179983 https://doi.org/10.3389/fmars.2022.945110 英语 eng FRONTIERS MEDIA SA FRONTIERS IN MARINE SCIENCE http://ir.qdio.ac.cn/handle/337002/179983 doi:10.3389/fmars.2022.945110 sea surface temperature North Pacific Intermediate Water biological productivity CO2 subarctic Pacific Ocean Environmental Sciences & Ecology Marine & Freshwater Biology Environmental Sciences SUB-ARCTIC PACIFIC SEA-SURFACE TEMPERATURE NORTHWESTERN PACIFIC SOUTHERN-OCEAN BERING-SEA CLIMATE VARIABILITY TIME-SERIES OKHOTSK SEA SEDIMENTS PRODUCTIVITY 期刊论文 2022 ftchinacasciocas https://doi.org/10.3389/fmars.2022.945110 2022-12-14T16:02:19Z As a major reservoir of heat and CO2, the Pacific Ocean is an important component of the global climate system, but the nature of its circulation under different climatic conditions remains poorly understood. We present sedimentary records of surface water hydrography and nutrient dynamics from the subarctic Pacific Ocean, with the aim of investigating changes in sea-ice coverage, biological productivity, and sea surface temperature in the subarctic Northwest Pacific since 32 kyr. Our records indicate an enhanced North Pacific surface water stratification from the last glacial to Heinrich Stadial 1, which generally limited the siliceous productivity supply to the surface water. A productivity peak during the Bolling/Allerod warm interval was associated with an increase in the atmospheric pCO(2), and it was driven by the increased supply of nutrient- and CO2-rich waters. This process can be attributed to the collapse of the North Pacific Intermediate Water formation at the onset of the Bolling/Allerod interstadial. Moreover, a northward shift of the westerly winds and the gyre boundary could have modulated the expansion of the subpolar gyre, driving changes in poleward heat transport, biogeochemistry, and the hydroclimate of the North Pacific. Our results are consistent with modern evidence for a northward shift of the westerlies in response to global warming, which will likely result in CO2 outgassing from the subarctic Pacific Ocean in the future. Report Arctic Bering Sea Global warming okhotsk sea Sea ice Southern Ocean Subarctic Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Arctic Bering Sea Okhotsk Pacific Southern Ocean Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
sea surface temperature North Pacific Intermediate Water biological productivity CO2 subarctic Pacific Ocean Environmental Sciences & Ecology Marine & Freshwater Biology Environmental Sciences SUB-ARCTIC PACIFIC SEA-SURFACE TEMPERATURE NORTHWESTERN PACIFIC SOUTHERN-OCEAN BERING-SEA CLIMATE VARIABILITY TIME-SERIES OKHOTSK SEA SEDIMENTS PRODUCTIVITY |
spellingShingle |
sea surface temperature North Pacific Intermediate Water biological productivity CO2 subarctic Pacific Ocean Environmental Sciences & Ecology Marine & Freshwater Biology Environmental Sciences SUB-ARCTIC PACIFIC SEA-SURFACE TEMPERATURE NORTHWESTERN PACIFIC SOUTHERN-OCEAN BERING-SEA CLIMATE VARIABILITY TIME-SERIES OKHOTSK SEA SEDIMENTS PRODUCTIVITY Liu, Yanguang Qiu, Yue Li, Dongling Artemova, Antonina V. Zhang, Yuying Bosin, Aleksandr A. Gorbarenko, Sergey A. Liu, Qingsong Zhao, Debo Sha, Longbin Zhong, Yi Abrupt fluctuations in North Pacific Intermediate Water modulated changes in deglacial atmospheric CO2 |
topic_facet |
sea surface temperature North Pacific Intermediate Water biological productivity CO2 subarctic Pacific Ocean Environmental Sciences & Ecology Marine & Freshwater Biology Environmental Sciences SUB-ARCTIC PACIFIC SEA-SURFACE TEMPERATURE NORTHWESTERN PACIFIC SOUTHERN-OCEAN BERING-SEA CLIMATE VARIABILITY TIME-SERIES OKHOTSK SEA SEDIMENTS PRODUCTIVITY |
description |
As a major reservoir of heat and CO2, the Pacific Ocean is an important component of the global climate system, but the nature of its circulation under different climatic conditions remains poorly understood. We present sedimentary records of surface water hydrography and nutrient dynamics from the subarctic Pacific Ocean, with the aim of investigating changes in sea-ice coverage, biological productivity, and sea surface temperature in the subarctic Northwest Pacific since 32 kyr. Our records indicate an enhanced North Pacific surface water stratification from the last glacial to Heinrich Stadial 1, which generally limited the siliceous productivity supply to the surface water. A productivity peak during the Bolling/Allerod warm interval was associated with an increase in the atmospheric pCO(2), and it was driven by the increased supply of nutrient- and CO2-rich waters. This process can be attributed to the collapse of the North Pacific Intermediate Water formation at the onset of the Bolling/Allerod interstadial. Moreover, a northward shift of the westerly winds and the gyre boundary could have modulated the expansion of the subpolar gyre, driving changes in poleward heat transport, biogeochemistry, and the hydroclimate of the North Pacific. Our results are consistent with modern evidence for a northward shift of the westerlies in response to global warming, which will likely result in CO2 outgassing from the subarctic Pacific Ocean in the future. |
format |
Report |
author |
Liu, Yanguang Qiu, Yue Li, Dongling Artemova, Antonina V. Zhang, Yuying Bosin, Aleksandr A. Gorbarenko, Sergey A. Liu, Qingsong Zhao, Debo Sha, Longbin Zhong, Yi |
author_facet |
Liu, Yanguang Qiu, Yue Li, Dongling Artemova, Antonina V. Zhang, Yuying Bosin, Aleksandr A. Gorbarenko, Sergey A. Liu, Qingsong Zhao, Debo Sha, Longbin Zhong, Yi |
author_sort |
Liu, Yanguang |
title |
Abrupt fluctuations in North Pacific Intermediate Water modulated changes in deglacial atmospheric CO2 |
title_short |
Abrupt fluctuations in North Pacific Intermediate Water modulated changes in deglacial atmospheric CO2 |
title_full |
Abrupt fluctuations in North Pacific Intermediate Water modulated changes in deglacial atmospheric CO2 |
title_fullStr |
Abrupt fluctuations in North Pacific Intermediate Water modulated changes in deglacial atmospheric CO2 |
title_full_unstemmed |
Abrupt fluctuations in North Pacific Intermediate Water modulated changes in deglacial atmospheric CO2 |
title_sort |
abrupt fluctuations in north pacific intermediate water modulated changes in deglacial atmospheric co2 |
publisher |
FRONTIERS MEDIA SA |
publishDate |
2022 |
url |
http://ir.qdio.ac.cn/handle/337002/179983 https://doi.org/10.3389/fmars.2022.945110 |
geographic |
Arctic Bering Sea Okhotsk Pacific Southern Ocean |
geographic_facet |
Arctic Bering Sea Okhotsk Pacific Southern Ocean |
genre |
Arctic Bering Sea Global warming okhotsk sea Sea ice Southern Ocean Subarctic |
genre_facet |
Arctic Bering Sea Global warming okhotsk sea Sea ice Southern Ocean Subarctic |
op_relation |
FRONTIERS IN MARINE SCIENCE http://ir.qdio.ac.cn/handle/337002/179983 doi:10.3389/fmars.2022.945110 |
op_doi |
https://doi.org/10.3389/fmars.2022.945110 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
_version_ |
1766343418504544256 |