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Titlearea Measurement of Agricultural Fields From Satellite Images
AuthorCihlar, J
SourceCanadian Journal of Remote Sensing 14, 1988 p. 110-116,
Alt SeriesEarth Sciences Sector, Contribution Series 20040720
Alt SeriesRESORS 1069744
PublisherInforma UK Limited
Mediapaper; on-line; digital
File formatpdf
Subjectsgeophysics; remote sensing
Released2014 08 01
AbstractThis paper describes results of a study to determine the feasibility of measuring areas of agricultural fields from satellite images. LANDSAT Thematic Mapper and SPOT High Resolution Visible data were analyzed for agricultural areas typified by small (Quebec) and large (Saskatchewan) fields. Satellite measurements were compared to values obtained from aerial photographs or cadastral maps. The effect of various spatial and spectral preprocessing operations on the accuracy of measurements was tested. Results show that for an average field size, the difference between satellite and ground measurements of 10 per cent of less can be achieved if appropriate data source and preprocessing algorithms are used. Very small fields and those obscured by clouds cannot be measured. In this study, these two categories represented 20 to 35 per cent of all fields studied.

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