Agriculture Management Green Vegetation Index Sample Satellite Images

AgroWatch™ Green Vegetation Index - Colorized Map

The Green Vegetation Index - Colorized Map (GVC), colorizes the green vegetation index (GVI) values to show the spatial distribution of remotely sensed vegetation. The index is related to crop vigor, vegetation amount or biomass, resulting from inputs, environmental, physical and cultural factors affecting crops. The AutoAgroWatch algorithm is applied to calibrated satellite images to separate the reflectance of vegetation from variation caused by underlying soils or water. The product is produced for a given field as well as for a region of interest.

AgroWatch™ Green Vegetation Index, Colorized (GVC), 01/01/2006

AgroWatch™ Green Vegetation Index, Colorized (GVC), 03/07/2007

AgroWatch™ Green Vegetation Index - Sharpened Map

The AgroWatch™ Green Vegetation Index - Sharpened Map (GVS) is a superior product which combines pansharpened information and GVC values to improve manual image interpretation intended to facilitate the identification and mapping of significant spatial features. Information about green biomass density is contained in the original GVC product which uses colors to show various levels in increments of 5 (on a scale from 0 to 100). GVS uses the registered panchromatic image (collected to make this a visible pan image) to modulate the brightness of each GVC color. The result has the excellent properties of a pansharpened image, but with quantitative numbers that are close (within 2 units) of the original GVC numbers.

The following examples of the Green Vegetation Index - Sharped Map, are applied to QuickBird images acquired on 01/01/06 and 03/07/07. These examples are intended to illustrate of the types of feature extraction that may be possible using the GVS product. When compared to GVC and other similar products, the improved quality of information available with GVS enhances the analysis process through greater delineation of crop areas and ground features to support crop management, utilizing a GIS environment.

AgroWatch™ Green Vegetation Index, Sharpened (GVS), 01/01/2006

AgroWatch™ Green Vegetation Index, Sharpened (GVS), 03/07/2007

AgroWatch™ Green Vegetation Index, Sharpened (GVS), 01/01/2006

For more information, please click here or contact us at:

Satellite Imaging Corporation
12777 Jones Road, Suite 370
Houston, Texas 77070-4671
USA

Tel: (1) 832-237-2900
Fax: (1) 832-237-2910
E-Mail: info@satimagingcorp.com

Websites:

• www.satimagingcorp.com (English)
• www.satimagingcorp.es (Spanish)

AgroWatch™ is a registered trademark of DigitalGlobe.

Copyright © 2010 EarthMap Solutions and Satellite Imaging Corp. All rights reserved.