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Last Edited: 3/17/2009

Border GIS and LANDSAT Project: Pilot study of feasibility of using satellite imagery to predict cropping patterns in Imperial and Mexicali Valleys

In 1998, EHIB used satellite imaging methods to estimate the types of crops grown in the agricultural Mexicali Valley of Mexico and the land uses for this region. The US Environmental Protection Agency aims to combine these crop classification data with data on standard pesticide application rates for specific crops to estimate the unknown amount of pesticides being applied in the Mexicali Valley.

In this project, crop classification and land use data from San Diego and Imperial Counties were mapped and overlaid onto satellite images of both counties to form a graphic template. The template was used with a satellite image of the Mexicali Valley to estimate crops grown in the Mexicali Valley and to assess what areas were urban, agricultural, or desert/scrub. This project also used ground reference data to validate these classifications and determine the accuracy of these methods. Several ways to improve the accuracy of methods were also identified through this project.

The report on the Pilot Study describes the following components of the Border GIS and LANDSAT project:

1. Obtain and rectify as accurately as possible at least one satellite image of the Imperial/Mexicali Valleys.

2. Develop and pilot methods for generating land use and crop GIS coverages from remote sensing data.

3. Validate resulting classifications to ground reference data.

4. Provide recommendations for future work with remote sensing data.


Click here to view the Final Report as a Word Document (Size:  746KB)

Click here to view the Presentation of Findings for the Border GIS and LANDSAT Project (Size:  1.57MB)

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