Paper Info
Title
Surface Freshwater Storage Variations in the Orinoco Floodplains Using Multi-Satellite Observations
Abstract
Variations in surface water extent and storage are poorly characterized from regional to global scales. In this study, a multi-satellite approach is proposed to estimate the water stored in the floodplains of the Orinoco Basin at a monthly time-scale using remotely-sensed observations of surface water from the Global Inundation Extent Multi-Satellite (GIEMS) and stages from Envisat radar altimetry. Surface water storage variations over 2003-2007 exhibit large interannual variability and a strong seasonal signal, peaking during summer, and associated with the flood pulse. The volume of surface water storage in the Orinoco Basin was highly correlated with the river discharge at Ciudad Bolivar (R = 0.95), the closest station to the mouth where discharge was estimated, although discharge lagged one month behind storage. The correlation remained high (R = 0.73) after removing seasonal effects. Mean annual variations in surface water volume represented similar to 170 km(3), contributing to similar to 45% of the Gravity Recovery and Climate Experiment (GRACE)-derived total water storage variations and representing similar to 13% of the total volume of water that flowed out of the Orinoco Basin to the Atlantic Ocean.
Year
DOI
Venue
2015
10.3390/rs70100089
REMOTE SENSING
Keywords
Field
DocType
Orinoco,floodplains,surface water storage,multi-satellite observations
Radar altimetry,Satellite,Discharge,Surface water,Floodplain,Hydrology,Water storage,Geology,Structural basin,Flood myth
Journal
Volume
Issue
Citations 
7
1
6
PageRank 
References 
Authors
0.82
2
9
Name
Order
Citations
PageRank
frederic frappart1112.04
Fabrice Papa2165.51
yoann malbeteau360.82
juan leon460.82
guillaume ramillien5248.23
Catherine Prigent611319.31
lucia seoane760.82
Frédérique Seyler8207.76
stephane calmant9174.10