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Quantitative analysis of drainage obtained from aerial photographs and RBV/LANDSAT imagesData obtained from aerial photographs (1:60,000) and LANDSAT return beam vidicon imagery (1:100,000) concerning drainage density, drainage texture, hydrography density, and the average length of channels were compared. Statistical analysis shows that significant differences exist in data from the two sources. The highly drained area lost more information than the less drained area. In addition, it was observed that the loss of information about the number of rivers was higher than that about the length of the channels.
Document ID
19820007613
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Dejesusparada, N. (Instituto de Pesquisas Espaciais Sao Jose dos Campos, Brazil)
Formaggio, A. R. (Instituto de Pesquisas Espaciais Sao Jose dos Campos, Brazil)
Epiphanio, J. C. N. (Instituto de Pesquisas Espaciais Sao Jose dos Campos, Brazil)
Filho, M. V. (Instituto de Pesquisas Espaciais Sao Jose dos Campos, Brazil)
Date Acquired
September 4, 2013
Publication Date
May 1, 1981
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
E82-10008
NASA-CR-164906
Accession Number
82N15486
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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