气候变化领域集成服务门户(CCPortal): Upper Ocean Stratification in the Eastern Pacific During the SPURS-2 Field Campaign

CCPortal

DOI	10.1029/2020JC016591
	Upper Ocean Stratification in the Eastern Pacific During the SPURS-2 Field Campaign
	Katsura S.; Sprintall J.; Bingham F.M.
发表日期	2021
ISSN	21699275
卷号	126 期号:3
英文摘要	The region between a shallow mixed layer and a deep isothermal layer resulting from salinity stratification is called a barrier layer (BL). Since BLs hinder the surface heat and momentum exchange with the ocean subsurface, they play an important role in air-sea interaction. Synoptic features and formation of BLs and associated temperature inversions (TIs) in the Eastern Pacific Fresh Pool (EPFP) were investigated using shipboard observations. BLs and TIs were found in the high-precipitation EPFP, a frontal transition zone (FTZ) and in the sea surface salinity (SSS) front during a 2016 boreal summer cruise. During a 2017 boreal autumn cruise, BLs and TIs were found from the southern part of the EPFP to the SSS front. The BLs in the SSS front and the FTZ were meridionally displaced from the precipitation maximum during both the 2016 and 2017 cruises. Freshening and cooling by tilting of both the isohalines and isotherms of the SSS front occurred via Ekman and geostrophic flow during both cruises, and also within the EPFP during 2016. The SSS front was a dominant contributor to the density gradient in the horizontal plane. A high dissolved oxygen content observed within BLs confirmed that the surface flow plays an important role in the BL and TI formation through the tilting process. Patchy distribution of freshening and cooling by tilting implies an intermittent BL and TI formation with short time scales. © 2021. 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/186426
作者单位	Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC, United States
推荐引用方式 GB/T 7714	Katsura S.,Sprintall J.,Bingham F.M.. Upper Ocean Stratification in the Eastern Pacific During the SPURS-2 Field Campaign[J],2021,126(3).
APA	Katsura S.,Sprintall J.,&Bingham F.M..(2021).Upper Ocean Stratification in the Eastern Pacific During the SPURS-2 Field Campaign.Journal of Geophysical Research: Oceans,126(3).
MLA	Katsura S.,et al."Upper Ocean Stratification in the Eastern Pacific During the SPURS-2 Field Campaign".Journal of Geophysical Research: Oceans 126.3(2021).