APPLICATION OF THE SATELLITE SYSTEM OF THE EARTH’S GRAVITY FIELD MEASUREMENT (GRACE) FOR THE EVALUATION OF WATER BALANCE IN RIVER CATCHMENTS
Abstract
Possible application of the satellite gravity survey data obtained under the Gravity Recovery and Climate Experiment (GRACE) for solving various hydrological problems is discussed. Former investigationslinked the monthly changes of the terrestrial gravity field of the Earth to the movement of water masseswithin the continental part of the hydrological cycle. The GRACE technology allows obtaining the realisticmean data on the changes of land water resources on continental and regional scale. The technique could beuseful for the monitoring of river discharge, snow cover, glacier melting and groundwater level oscillationsover vast territories. The specific features of the technique itself and the data processing are described. TheGRACE-based monthly gravity field data are transformed into the maps of water level equivalent andaveraged for the catchments of the largest rivers ofRussia. The temporal variability of the parameter isanalyzed. Possible application of the GRACE data for the evaluation of particular components of waterbalance within the largest river basins of the European part ofRussiais discussed.
About the Authors
L. V. Zotov
Lomonosov Moscow State University
Russian Federation
Russian Federation
N. L. Frolova
Lomonosov Moscow State University
Russian Federation
Russian Federation
V. Yu. Grigoriev
Lomonosov Moscow State University
Russian Federation
Russian Federation
M. A. Kharlamov
Lomonosov Moscow State University
Russian Federation
Russian Federation
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Review
For citations:
Zotov L.V., Frolova N.L., Grigoriev V.Yu., Kharlamov M.A. APPLICATION OF THE SATELLITE SYSTEM OF THE EARTH’S GRAVITY FIELD MEASUREMENT (GRACE) FOR THE EVALUATION OF WATER BALANCE IN RIVER CATCHMENTS. Vestnik Moskovskogo universiteta. Seriya 5, Geografiya. 2015;(4):27-34. (In Russ.)
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