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Flood hazard studies in Central Texas using orbital and suborbital remote sensing machineryCentral Texas is subject to infrequent, unusually intense rainstorms which cause extremely rapid runoff from drainage basins developed on the deeply dissected limestone and marl bedrock of the Edwards Plateau. One approach to flood hazard evaluation in this area is a parametric model relating flood hydrograph characteristics to quantitative geomorphic properties of the drainage basins. The preliminary model uses multiple regression techniques to predict potential peak flood discharge from basin magnitude, drainage density, and ruggedness number. After mapping small catchment networks from remote sensing imagery, input data for the model are generated by network digitization and analysis by a computer assisted routine of watershed analysis. The study evaluated the network resolution capabilities of the following data formats: (1) large-scale (1:24,000) topographic maps, employing Strahler's "method of v's," (2) standard low altitude black and white aerial photography (1:13,000 and 1:20,000 scales), (3) NASA - generated aerial infrared photography at scales ranging from 1:48,000 to 1:123,000, and (4) Skylab Earth Resources Experiment Package S-190A and S-190B sensors (1:750,000 and 1:500,000 respectively).
Document ID
19760010507
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Baker, V. R.
(Texas Univ. Austin, TX, United States)
Holz, R. K.
(Texas Univ. Austin, TX, United States)
Patton, P. C.
(Texas Univ. Austin, TX, United States)
Date Acquired
August 8, 2013
Publication Date
June 1, 1975
Publication Information
Publication: NASA. Lyndon B. Johnson Space Center NASA Earth Resources Surv. Symp., Vol. 1-D
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
W-8
Accession Number
76N17595
Funding Number(s)
CONTRACT_GRANT: NAS9-13312
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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