globalchange  > 气候变化与战略
DOI: 10.5194/hess-22-2867-2018
论文题名:
Daily GRACE gravity field solutions track major flood events in the Ganges-Brahmaputra Delta
作者: Gouweleeuw B.T.; Kvas A.; Gruber C.; Gain A.K.; Mayer-Gürr T.; Flechtner F.; Güntner A.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2018
卷: 22, 期:5
起始页码: 2867
结束页码: 2880
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
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163309
Appears in Collections:气候变化与战略

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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

Recommended Citation:
Gouweleeuw B.T.,Kvas A.,Gruber C.,et al. Daily GRACE gravity field solutions track major flood events in the Ganges-Brahmaputra Delta[J]. Hydrology and Earth System Sciences,2018-01-01,22(5)
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