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Posts tagged Chelys

The World from MERIS – Summer 2008

September 11th, 2009 Category: Mosaics

The World from MERIS - Summer 2008

The World from MERIS - Summer 2008

Over 2000 Level0 Reduced Resolution products from the MERIS instrument onboard the Envisat satellite were collected in the time period from January to August 2008 and processed by the Chelys Satellite Rapid Response System (SRRS) to generate high quality images.
The images were projected to obtain this composite view using MOSRI, a real time mosaic generation system, which automatically removes clouds and shadows while combining the data.

The new mosaic is available at different resolutions in the MOSAICS section of the EOSnap website.

ASAR Image Orthorectification

April 3rd, 2009 Category: Earth Observation

Figure 1 - 3D Model

Figure 1 - 3D Model

These images of Reunion Island provide a clear example of the improvements made through the use of the orthorectification technique.
The original product has been processed, orthorectified and projected using the Chelys SRRS (Satellite Rapid Response System). The orthorectification process is now fully automatic and transparent. The Digital Elevation Model used is the Nasa SRTM v4 (Shuttle Radar Topography Mission).

The proper DEM is selected according to the image resolution: from 15 arcseconds up to 1 arcsecond (only available for USA). The performance of the system are kept in real-time. The entire correction process takes less than 20 seconds per product.

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