气候变化领域集成服务门户(CCPortal): Daily GRACE gravity field solutions track major flood events in the Ganges-Brahmaputra Delta

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DOI	10.5194/hess-22-2867-2018
	Daily GRACE gravity field solutions track major flood events in the Ganges-Brahmaputra Delta
	Gouweleeuw B.T.; Kvas A.; Gruber C.; Gain A.K.; Mayer-Gürr T.; Flechtner F.; Güntner A.
发表日期	2018
ISSN	1027-5606
起始页码	2867
结束页码	2880
卷号	22 期号:5
英文摘要	Two daily gravity field solutions based on observations from the Gravity Recovery and Climate Experiment (GRACE) satellite mission are evaluated against daily river runoff data for major flood events in the Ganges-Brahmaputra Delta (GBD) in 2004 and 2007. The trends over periods of a few days of the daily GRACE data reflect temporal variations in daily river runoff during major flood events. This is especially true for the larger flood in 2007, which featured two distinct periods of critical flood level exceedance in the Brahmaputra River. This first hydrological evaluation of daily GRACE gravity field solutions based on a Kalman filter approach confirms their potential for gravity-based large-scale flood monitoring. This particularly applies to short-lived, high-volume floods, as they occur in the GBD with a 4-5-year return period. The release of daily GRACE gravity field solutions in near-real time may enable flood monitoring for large events. © 2018 Copernicus GmbH. All rights reserved.
语种	英语
scopus关键词	Geodetic satellites; Rivers; Runoff; Brahmaputra River; Filter approach; Flood monitoring; Ganges-Brahmaputra Delta; Gravity field solution; Gravity recovery and climate experiment satellites; Return periods; Temporal variation; Floods; flood; GRACE; gravity field; Kalman filter; runoff; satellite mission; temporal variation; tracking; Brahmaputra River; Ganges Delta
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160026
作者单位	Gouweleeuw, B.T., GFZ German Research Centre for Geosciences, Section 5.4 Hydrology, Potsdam, 14473, Germany; Kvas, A., Graz University of Technology, Institute of Geodesy, Graz, 8010, Austria; Gruber, C., GFZ German Research Centre for Geosciences, Section 5.4 Hydrology, Potsdam, 14473, Germany; Gain, A.K., Christian Albrecht University Kiel, Institute of Geography, Ludewig-Meyn-Str. 14, Kiel, 24098, Germany; Mayer-Gürr, T., Graz University of Technology, Institute of Geodesy, Graz, 8010, Austria; Flechtner, F., GFZ German Research Centre for Geosciences, Section 5.4 Hydrology, Potsdam, 14473, Germany; Güntner, A., GFZ German Research Centre for Geosciences, Section 5.4 Hydrology, Potsdam, 14473, Germany
推荐引用方式 GB/T 7714	Gouweleeuw B.T.,Kvas A.,Gruber C.,et al. Daily GRACE gravity field solutions track major flood events in the Ganges-Brahmaputra Delta[J],2018,22(5).
APA	Gouweleeuw B.T..,Kvas A..,Gruber C..,Gain A.K..,Mayer-Gürr T..,...&Güntner A..(2018).Daily GRACE gravity field solutions track major flood events in the Ganges-Brahmaputra Delta.Hydrology and Earth System Sciences,22(5).
MLA	Gouweleeuw B.T.,et al."Daily GRACE gravity field solutions track major flood events in the Ganges-Brahmaputra Delta".Hydrology and Earth System Sciences 22.5(2018).