气候变化领域集成服务门户(CCPortal): Synergy of In Situ and Satellite Ocean Observations in Determining Meridional Heat Transport in the Atlantic Ocean

CCPortal

DOI	10.1029/2020JC017073
	Synergy of In Situ and Satellite Ocean Observations in Determining Meridional Heat Transport in the Atlantic Ocean
	Dong S.; Goni G.; Domingues R.; Bringas F.; Goes M.; Christophersen J.; Baringer M.
发表日期	2021
ISSN	21699275
卷号	126 期号:4
英文摘要	The meridional overturning circulation (MOC) is a major driver in global redistribution of heat, which modulates global climate and weather. Altimeter sea surface height measurements and in situ hydrographic data are combined in this work to derive monthly synthetic temperature and salinity (T/S) profiles along zonal transbasin sections in both the North (26.5°N) and South (20°S, 25°S, 30°S, and 35°S) Atlantic Ocean since 1993, which are then used to estimate the MOC and meridional heat transport (MHT). Consistent with previous studies, the results indicate that the MHT is highly correlated with the MOC at all five latitudes. At 26.5°N the mean MHT from synthetic profiles (1.09 ± 0.21 PW) is slightly lower than that from the RAPID-MOCHA-WBTS array (1.20 ± 0.28 PW), but their interannual variabilities show good agreements. Both the geostrophic and Ekman components contribute significantly to the MHT variability, with the geostrophic component dominating during 1993–2004 and the Ekman component dominating during 2005–2014. In the South Atlantic, the MHT seasonal cycle strengthens southward from 20°S to 34.5°S. On interannual time scale, the MHT at 20°S and 25°S experiences larger variations than that at 30°S and 34.5°S, in part due to the fact that the geostrophic and Ekman components work together to strengthen the MHT changes, while they tend to work against each other at 30°S and 34.5°S. Results shown here suggest that integrating data from different observing platforms provides better means to estimate the MOC and MHT in near real time. © 2021. American Geophysical Union. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
英文关键词	Atlantic Ocean; in situ and satellite observations; meridional heat transport; meridional overturning circulation
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/186403
作者单位	NOAA/Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, United States; Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, United States; National Research Council, U.S. Naval Research Laboratory, Monterey, CA, United States
推荐引用方式 GB/T 7714	Dong S.,Goni G.,Domingues R.,et al. Synergy of In Situ and Satellite Ocean Observations in Determining Meridional Heat Transport in the Atlantic Ocean[J],2021,126(4).
APA	Dong S..,Goni G..,Domingues R..,Bringas F..,Goes M..,...&Baringer M..(2021).Synergy of In Situ and Satellite Ocean Observations in Determining Meridional Heat Transport in the Atlantic Ocean.Journal of Geophysical Research: Oceans,126(4).
MLA	Dong S.,et al."Synergy of In Situ and Satellite Ocean Observations in Determining Meridional Heat Transport in the Atlantic Ocean".Journal of Geophysical Research: Oceans 126.4(2021).