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Production Estimates and Crop Assessment Division
Foreign Agricultural Service

 

 

June 18, 2002

Vegetation Comparison in Saskatchewan

Map of western Canada (British Columbia, Alberta, Saskatchewan, and Manitoba) that identifies Elfros, Saskatchewan

Satellite image of Elfros, SK; May 13, 2002; no green vegetation present
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Satellite image of Elfros, SK; May 14, 2000; green vegetation present

The above images were acquired by the Landsat 7 satellite on May 13, 2002 and May 14, 2000.  The images are presented using a combination of band 4 (near infrared), band 5 (mid infrared), and band 3 (red) images in place of the natural red, green, and blue image seen by the human eye.  This band combination enhances the appearance of vegetation, by giving it a "false-color," red, and in this example shows that vegetation this year was not as apparent as it was in 2000.  This could cause problems if a cool period slows growth even further, because of the chance of an early frost.

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For more information, contact Jim Tringe
with the Production Estimates and Crop Assessment Division, at (202)720-0882

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