气候变化领域集成服务门户(CCPortal): Extending the Global Mass Change Data Record: GRACE Follow-On Instrument and Science Data Performance

CCPortal

DOI	10.1029/2020GL088306
	Extending the Global Mass Change Data Record: GRACE Follow-On Instrument and Science Data Performance
	Landerer F.W.; Flechtner F.M.; Save H.; Webb F.H.; Bandikova T.; Bertiger W.I.; Bettadpur S.V.; Byun S.H.; Dahle C.; Dobslaw H.; Fahnestock E.; Harvey N.; Kang Z.; Kruizinga G.L.H.; Loomis B.D.; McCullough C.; Murböck M.; Nagel P.; Paik M.; Pie N.; Poole S.; Strekalov D.; Tamisiea M.E.; Wang F.; Watkins M.M.; Wen H.-Y.; Wiese D.N.; Yuan D.-N.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:12
英文摘要	Since June, 2018, the Gravity Recovery and Climate Experiment Follow-On (GRACE-FO) is extending the 15-year monthly mass change record of the GRACE mission, which ended in June 2017. The GRACE-FO instrument and flight system performance has improved over GRACE. Better attitude solutions and enhanced pointing performance result in reduced fuel consumption and gravity range rate post-fit residuals. One accelerometer requires additional calibrations due to unexpected measurement noise. The GRACE-FO gravity and mass change fields from June 2018 through December 2019 continue the GRACE record at an equivalent precision and spatiotemporal sampling. During this period, GRACE-FO observed large interannual terrestrial water variations associated with excess rainfall (Central US, Middle East), drought (Europe, Australia), and ice melt (Greenland). These observations are consistent with independent mass change estimates, providing high confidence that no intermission biases exist from GRACE to GRACE-FO, despite the 11-month gap. GRACE-FO has also successfully demonstrated satellite-to-satellite laser ranging interferometry. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Climate change; Gravitation; Attitude solution; Flight systems; GRACE mission; Gravity recovery and climate experiments; High confidence; Measurement Noise; Satellite laser ranging; Spatio-temporal samplings; Geodetic satellites; annual variation; drought stress; GRACE; gravity field; performance assessment; precipitation intensity; rainfall; satellite laser ranging; science and technology; spatiotemporal analysis
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/170218
作者单位	Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany; Center for Space Research, The University of Texas at Austin, Austin, TX, United States; Geodesy and Geophysics Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; FG Physical Geodesy, Technische Universität Berlin, Berlin, Germany
推荐引用方式 GB/T 7714	Landerer F.W.,Flechtner F.M.,Save H.,et al. Extending the Global Mass Change Data Record: GRACE Follow-On Instrument and Science Data Performance[J],2020,47(12).
APA	Landerer F.W..,Flechtner F.M..,Save H..,Webb F.H..,Bandikova T..,...&Yuan D.-N..(2020).Extending the Global Mass Change Data Record: GRACE Follow-On Instrument and Science Data Performance.Geophysical Research Letters,47(12).
MLA	Landerer F.W.,et al."Extending the Global Mass Change Data Record: GRACE Follow-On Instrument and Science Data Performance".Geophysical Research Letters 47.12(2020).