Minimize Brazil deforestation - August 2006

These two Envisat images examine an area of deforestation in the Mato Grosso region of Brazil, utilising multi-layer compositions to track changes over time.

Envisat ASA_IMP image

This Envisat (IMP) radar image is a multi-layer composite made by merging three different acquisitions taken by Envisat on different dates. The image shows a large area along the Rio Arinos (lower right border) an area north of Cuiabà (Brazil), in the state of Mato Grosso. Originally uniform tropical rain forest dissected by a course drainage pattern, the area is now a patchwork of deforested zones (light violet and brown colour), sprawling along roads and around centres.

View large image [JPG 346 KB]
Technical Information
Satellite: Envisat
Instrument: Advanced Synthetic Aperture Radar (ASAR)
Product: ASA_IMP_1P (30 metre resolution)
Date of acquisition: 15 Feb 2006, 06 Apr 2005, 26 Jan 2005
Orbit direction: Ascending
Envisat ASA_WSM image

This ASAR wide swath mode multi-layer composite image shows the same area, but with a different orbit direction, acquisition date and resolution. The area is now a patchwork of deforested zones and visible in light brown.

View large image [JPG 323 KB]
Technical Information
Satellite: Envisat
Instrument: Advanced Synthetic Aperture Radar (ASAR)
Product: ASA_WSM_1P (150 metre resolution)
Date of acquisition: 14 Aug 2005, 27 Apr 2003, 23 Nov 2003
Orbit direction: Descending
Map of area

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Change Detection