A Comparison of Coincident Landsat-5 TM and Resourcesat-1 AWiFS Imagery for Classifying Croplands
نویسنده
چکیده
PHOTOGRAMMETRIC ENGINEER ING & REMOTE SENS ING Novembe r 2008 1413 Abstract A comparison of land-cover maps, emphasizing row crop agriculture, resulting from independent classifications of coincident Landsat-5 Thematic Mapper (TM) and Resourcesat-1 Advanced Wide Field Sensor (AWIFS) imagery is presented. Three agriculturally intensive study areas within the midsection of the United States were analyzed during the peak of their growing season. For each region the data were collected within the same hour during August 2005. Identical decision tree style classification methodologies relying on ground truth from the June Agricultural Survey were applied to the image pairs for each of the three cases. The direct comparison of mapping accuracy results show, on average, the TM output to perform slightly better than that of the complimentary AWIFS. It is concluded AWIFS is a valid alternative to TM for classifying cultivated agriculture in areas with reasonably large field sizes. Furthermore, AWIFS offers increased benefits due to larger swath widths and shorter revisit frequencies.
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