气候变化领域集成服务门户(CCPortal): Global Ocean Mass Change From GRACE and GRACE Follow-On and Altimeter and Argo Measurements

CCPortal

DOI	10.1029/2020GL090656
	Global Ocean Mass Change From GRACE and GRACE Follow-On and Altimeter and Argo Measurements
	Chen J.; Tapley B.; Wilson C.; Cazenave A.; Seo K.-W.; Kim J.-S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Satellite altimeter sea surface heights, in combination with Argo ocean temperature and salinity observations, provide an independent measure of global mean ocean mass (GMOM) change. Over the period January 2005 to April 2020, GMOM rates observed by the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GFO) range from 1.88 ± 0.10 to 2.63 ± 0.10 mm/year, compared to 2.85 ± 0.37 mm/year from Altimeter-Argo. Over much of the GRACE era, GRACE GMOM estimates agree well with Altimeter-Argo over a broadband of frequencies. However, during the late stage of the GRACE mission (after August 2016) and into the GFO era, differences between GRACE/GFO and Altimeter-Argo GMOM estimates become substantially larger and systematic, which may be related to the single accelerometer mode of operation during late-stage GRACE and GFO missions and/or errors of Argo and altimeter data. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Aneroid altimeters; Meteorological instruments; Surface waters; Systematic errors; Altimeter data; Global ocean; GRACE mission; Gravity recovery and climate experiments; Mode of operations; Ocean temperature; Satellite altimeter; Sea surface height; Geodetic satellites; Argo; data assimilation; error analysis; GRACE; satellite altimetry; sea surface height; sea surface salinity; water mass
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169420
作者单位	Center for Space Research, University of Texas at Austin, Austin, TX, United States; Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX, United States; Legos/CNES, Toulouse, France; Earth Science Education, Seoul National University, Seoul, South Korea
推荐引用方式 GB/T 7714	Chen J.,Tapley B.,Wilson C.,et al. Global Ocean Mass Change From GRACE and GRACE Follow-On and Altimeter and Argo Measurements[J],2020,47(22).
APA	Chen J.,Tapley B.,Wilson C.,Cazenave A.,Seo K.-W.,&Kim J.-S..(2020).Global Ocean Mass Change From GRACE and GRACE Follow-On and Altimeter and Argo Measurements.Geophysical Research Letters,47(22).
MLA	Chen J.,et al."Global Ocean Mass Change From GRACE and GRACE Follow-On and Altimeter and Argo Measurements".Geophysical Research Letters 47.22(2020).