DOI: 10.1002/2013JD020500
论文题名: Surface freshwater storage and variability in the Amazon basin from multi-satellite observations, 1993-2007
作者: Papa F. ; Frappart F. ; Güntner A. ; Prigent C. ; Aires F. ; Getirana A.C.V. ; Maurer R.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 21 起始页码: 11951
结束页码: 11965
语种: 英语
英文关键词: Amazon
; Hydrology
; Remote Sensing
; Surface Water
Scopus关键词: Digital storage
; Drought
; Floods
; Geodetic satellites
; Hydrology
; Remote sensing
; Reservoirs (water)
; Surface water resources
; Water
; Advance spaceborne thermal emission and reflection radiometers
; Amazon
; Digital elevation model
; Gravity recovery and climate experiments
; Multi-satellite observations
; Seasonal and interannual variability
; Spatio-temporal variation
; Water resources management
; Surface waters
; ASTER
; digital elevation model
; GRACE
; remote sensing
; river basin
; spatiotemporal analysis
; water management
; water resource
; Amazon Basin
; Amazon River
英文摘要: The amount of water stored and moving through the surface water bodies of large river basins (river, floodplains, wetlands) plays a major role in the global water and biochemical cycles and is a critical parameter for water resources management. However, the spatiotemporal variations of these freshwater reservoirs are still widely unknown at the global scale. Here, we propose a hypsographic curve approach to estimate surface freshwater storage variations over the Amazon basin combining surface water extent from a multi-satellite- technique with topographic data from the Global Digital Elevation Model (GDEM) from Advance Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Monthly surface water storage variations for 1993-2007 are presented, showing a strong seasonal and interannual variability, and are evaluated against in situ river discharge and precipitation. The basin-scale mean annual amplitude of ∼1200 km3 is in the range of previous estimates and contributes to about half of the Gravity Recovery And Climate Experiment (GRACE) total water storage variations. For the first time, we map the surface water volume anomaly during the extreme droughts of 1997 (October-November) and 2005 (September-October) and found that during these dry events the water stored in the river and floodplains of the Amazon basin was, respectively, ∼230 (∼40%) and 210 (∼50%) km3 below the 1993-2007 average. This new 15 year data set of surface water volume represents an unprecedented source of information for future hydrological or climate modeling of the Amazon. It is also a first step toward the development of such database at the global scale. Key Points Spatio-temporal variations of surface freshwater reservoirs in the Amazon basin Multi-satellite based technique combining surface water extent and ASTER GDEM Interannual variations and extreme droughts analysis using 15-year time series ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63189
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Institut de Recherche Pour le Developpement, IRD, LEGOS, Toulouse, France; IFCWS, Indo-French Cell for Water Sciences, Indian Institute of Science, Bangalore, India; Universite de Toulouse; UPS, OMP-GET (UPS), Toulouse, France; GFZ, German Research Centre for Geosciences, Potsdam, Germany; LERMA, CNRS, Observatoire de Paris, Paris, France; Estellus, Paris, France; Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, United States; NASA Goddard Institute for Space Studies, Columbia University, New York, NY, United States
Recommended Citation:
Papa F.,Frappart F.,Güntner A.,et al. Surface freshwater storage and variability in the Amazon basin from multi-satellite observations, 1993-2007[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(21)