气候变化领域集成服务门户(CCPortal): Effects of Typhoons on Surface Seawater pCO2 and Air-Sea CO2 Fluxes in the Northern South China Sea

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DOI	10.1029/2020JC016258
	Effects of Typhoons on Surface Seawater pCO2 and Air-Sea CO2 Fluxes in the Northern South China Sea
	Yu P.; Wang Z.A.; Churchill J.; Zheng M.; Pan J.; Bai Y.; Liang C.
发表日期	2020
ISSN	21699275
卷号	125 期号:8
英文摘要	This study assessed the effects of typhoons on sea surface pCO2 and CO2 flux in the northern South China Sea (SCS). During the passage of three major typhoons from May to August 2013, sea surface pCO2, surface seawater temperature (SST), and other meteorological parameters were continuously measured on a moored buoy. Surface water in the region was a source of CO2 to the atmosphere with large variations ranging from hours to months. SST was the primary factor controlling the variation of surface pCO2 through most of the time period. Typhoons are seen to impact surface pCO2 in three steps: first by cooling, thus decreasing surface pCO2, and then by causing vertical mixing that brings up deep, high-CO2 water, and lastly triggering net uptake of CO2 due to the nutrients brought up in this deep water. The typhoons of this study primarily impacted air-sea CO2 flux via increasing wind speeds. The mean CO2 flux during a typhoon ranged from 3.6 to 5.4 times the pretyphoon mean flux. The magnitude of the CO2 flux during typhoons was strongly inversely correlated with the typhoon center distance. The effect of typhoons accounted for 22% of the total CO2 flux in the study period, during which typhoons occurred only 9% of the time. It was estimated that typhoons enhanced annual CO2 efflux by 23–56% in the northern SCS during the last decade. As such, tropical cyclones may play a large and increasingly important role in controlling CO2 fluxes in a warmer and stormier ocean of the future. ©2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186719
作者单位	Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
推荐引用方式 GB/T 7714	Yu P.,Wang Z.A.,Churchill J.,et al. Effects of Typhoons on Surface Seawater pCO2 and Air-Sea CO2 Fluxes in the Northern South China Sea[J],2020,125(8).
APA	Yu P..,Wang Z.A..,Churchill J..,Zheng M..,Pan J..,...&Liang C..(2020).Effects of Typhoons on Surface Seawater pCO2 and Air-Sea CO2 Fluxes in the Northern South China Sea.Journal of Geophysical Research: Oceans,125(8).
MLA	Yu P.,et al."Effects of Typhoons on Surface Seawater pCO2 and Air-Sea CO2 Fluxes in the Northern South China Sea".Journal of Geophysical Research: Oceans 125.8(2020).