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Sensitivity of geographic information system outputs to errors in remotely sensed dataThe sensitivity of the outputs of a geographic information system (GIS) to errors in inputs derived from remotely sensed data (RSD) is investigated using a suitability model with per-cell decisions and a gridded geographic data base whose cells are larger than the RSD pixels. The process of preparing RSD as input to a GIS is analyzed, and the errors associated with classification and registration are examined. In the case of the model considered, it is found that the errors caused during classification and registration are partially compensated by the aggregation of pixels. The compensation is quantified by means of an analytical model, a Monte Carlo simulation, and experiments with Landsat data. The results show that error reductions of the order of 50% occur because of aggregation when 25 pixels of RSD are used per cell in the geographic data base.
Document ID
19820063245
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ramapriyan, H. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Boyd, R. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gunther, F. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Lu, Y. C.
(Computer Sciences Corp. Silver Spring, MD, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Machine processing of remotely sensed data with special emphasis on range, forest, and wetlands assessment
Location: West Lafayette, IN
Start Date: June 23, 1981
End Date: June 26, 1981
Accession Number
82A46780
Distribution Limits
Public
Copyright
Other

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