气候变化领域集成服务门户(CCPortal): Marine Heatwave and Terrestrial Drought Reduced CO2 Uptake in the East China Sea in 2022

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DOI	10.3390/rs16050849
	Marine Heatwave and Terrestrial Drought Reduced CO2 Uptake in the East China Sea in 2022
	Yu, Shujie; Wang, Zhixuan; Jiang, Zhiting; Li, Teng; Ding, Xiaosong; Wei, Xiaodao; Liu, Dong
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	5
卷号	16 期号:5
英文摘要	Against the background of climate warming, marine heatwaves (MHWs) and terrestrial drought events have become increasingly frequent in recent decades. However, the combined effects of MHWs and terrestrial drought on CO2 uptake in marginal seas are still unclear. The East China Sea (ECS) experienced an intense and long-lasting MHW accompanied by an extreme terrestrial drought in the Changjiang basin in the summer of 2022. In this study, we employed multi-source satellite remote sensing products to reveal the patterns, magnitude, and potential drivers of CO2 flux changes in the ECS resulting from the compounding MHW and terrestrial drought extremes. The CO2 uptake of the ECS reduced by 17.0% (1.06 Tg C) in the latter half of 2022 and the Changjiang River plume region shifted from a CO2 sink to a source (releasing 0.11 Tg C) in July-September. In the majority of the ECS, the positive sea surface temperature (SST) anomaly during the MHW diminished the solubility of CO(2 )in seawater, thereby reducing CO2 uptake. Moreover, the reduction in nutrient input associated with terrestrial drought, which is unfavorable to phytoplankton growth, further reduced the capacity of CO2 uptake. Meanwhile, the CO2 sink doubled for the offshore waters of the ECS continental shelf in July-September 2022, indicating the complexity and heterogeneity of the impacts of extreme climatic events in marginal seas. This study is of great significance in improving the estimation results of CO2 fluxes in marginal seas and understanding sea-air CO2 exchanges against the background of global climate change.
英文关键词	CO2 uptake; sea-air CO2 flux; marine heatwaves; terrestrial drought; East China Sea
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001183409800001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/301008
作者单位	Jimei University; Ministry of Natural Resources of the People's Republic of China; Second Institute of Oceanography, Ministry of Natural Resources; Xiamen University; Xiamen University; Donghai Laboratory; Chinese Academy of Sciences; Nanjing Institute of Geography & Limnology, CAS
推荐引用方式 GB/T 7714	Yu, Shujie,Wang, Zhixuan,Jiang, Zhiting,et al. Marine Heatwave and Terrestrial Drought Reduced CO2 Uptake in the East China Sea in 2022[J],2024,16(5).
APA	Yu, Shujie.,Wang, Zhixuan.,Jiang, Zhiting.,Li, Teng.,Ding, Xiaosong.,...&Liu, Dong.(2024).Marine Heatwave and Terrestrial Drought Reduced CO2 Uptake in the East China Sea in 2022.REMOTE SENSING,16(5).
MLA	Yu, Shujie,et al."Marine Heatwave and Terrestrial Drought Reduced CO2 Uptake in the East China Sea in 2022".REMOTE SENSING 16.5(2024).