Landsat Satellite Multi-Spectral Classification of Land Cover Change for GIS-Based Urbanization Analysis in Irrigation Districts: Evaluation in the Lower Rio Grande Valley

摘要

This report summarizes our evaluation of the potential of Landsat satellite multi-spectral land cover imagery for GIS-based urbanization analysis in irrigation districts. Three image scenes of ETM+ (2003) and TM (1993) multi-spectral image data were purchased from USGS through TexasView Remote Sensing Consortium. The three scenes cover the Hidalgo, Cameron, and Willacy Counties in the Lower Rio Grande Valley. The images were classified in terms of land cover categories, and the classified data were overlaid on GIS layout to visualize urbanization in irrigation districts.