气候变化领域集成服务门户(CCPortal): Inferring Florida Current Volume Transport From Satellite Altimetry

CCPortal

DOI	10.1029/2020JC016763
	Inferring Florida Current Volume Transport From Satellite Altimetry
	Volkov D.L.; Domingues R.; Meinen C.S.; Garcia R.; Baringer M.; Goni G.; Smith R.H.
发表日期	2020
ISSN	21699275
卷号	125 期号:12
英文摘要	The nearly four-decades-long quasi-continuous daily measurements of the Florida Current (FC) volume transport with a submarine cable at about 27°N represents the longest climate record of a boundary current in existence. Given the extremely high utility of this time series for monitoring the Atlantic meridional overturning circulation, as well as for improving understanding and prediction of the regional weather, climate phenomena, coastal sea-level, and ecosystem dynamics, efforts are underway to establish a suitable backup observing system in case the cable becomes inoperable in the future. This study explores the utility of along-track satellite altimetry measurements since 1993 as a potential cable backup by establishing the relationship between the cross-stream sea surface height gradients and the FC volume transport derived from cable measurements and ship sections. We find that despite the lower temporal resolution, satellite altimetry can indeed serve as a decent but limited backup observing system. The FC transport inferred from satellite altimetry captures about 60% of the variability observed in the concurrent cable estimates, and the estimated error bars for the altimetry-derived transport are larger than those of the cable transport (2.1 Sv vs. 1.5 Sv). We nevertheless demonstrate that satellite altimetry reproduces the seasonal, intra-seasonal, and inter-annual variability of the FC transport fairly well, as well as large transport anomalies during extreme weather events, such as tropical storms and hurricanes. The altimetry-derived transport can be provided in near-real time and serve the need to fill in data gaps in the cable record and assess its quality over time. © 2020. American Geophysical Union. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
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/186557
作者单位	Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, FL, United States; NOAA Atlantic Oceanographic and Meteorological Laboratory, Miami, FL, United States
推荐引用方式 GB/T 7714	Volkov D.L.,Domingues R.,Meinen C.S.,et al. Inferring Florida Current Volume Transport From Satellite Altimetry[J],2020,125(12).
APA	Volkov D.L..,Domingues R..,Meinen C.S..,Garcia R..,Baringer M..,...&Smith R.H..(2020).Inferring Florida Current Volume Transport From Satellite Altimetry.Journal of Geophysical Research: Oceans,125(12).
MLA	Volkov D.L.,et al."Inferring Florida Current Volume Transport From Satellite Altimetry".Journal of Geophysical Research: Oceans 125.12(2020).