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A sensitivity analysis of regional and small watershed hydrologic modelsContinuous simulation models of the hydrologic behavior of watersheds are important tools in several practical applications such as hydroelectric power planning, navigation, and flood control. Several recent studies have addressed the feasibility of using remote earth observations as sources of input data for hydrologic models. The objective of the study reported here was to determine how accurately remotely sensed measurements must be to provide inputs to hydrologic models of watersheds, within the tolerances needed for acceptably accurate synthesis of streamflow by the models. The study objective was achieved by performing a series of sensitivity analyses using continuous simulation models of three watersheds. The sensitivity analysis showed quantitatively how variations in each of 46 model inputs and parameters affect simulation accuracy with respect to five different performance indices.
Document ID
19750056547
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ambaruch, R.
Salomonson, V. V.
(NASA Goddard Space Flight Center Hydrology and Oceanography Branch, Greenbelt, Md., United States)
Simmons, J. W.
(IBM Corp. Federal Systems Div., Huntsville, Ala., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1975
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Technology today for tomorrow; Twelfth Space Congress
Location: Cocoa Beach, FL
Start Date: April 9, 1975
End Date: April 11, 1975
Accession Number
75A40619
Funding Number(s)
CONTRACT_GRANT: NAS5-21942
Distribution Limits
Public
Copyright
Other

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