Descartes Labs has created three distinctive global composites - Landsat 8, Sentinel-1, and Sentinel-2 - using each satellites unique image resolutions and frequency bands. By using the Descartes Labs platform, we were able to pre-process all of the imagery to make an easy-to-access composite you can explore.
Co-register images for accurate alignment
Convert to standardized map projections
Remove clouds and correct for shadows
Adjust for camera angle and sun angle
Calibrate sensors against self and neighbors
Compensate for atmospheric degradations
Landsat 8
RGB bands
15 meters per pixel resolution
3.1 trillion pixels per band (Red, Green, Blue)
Built from 70 trillion pixels per band captured from 2013 to 2017 (320 TB)
Sentinel-2
Red Edge bands
20 meters per pixel resolution
1.8 trillion pixels per band (RE1, RE2, RE3)
Built from 22 trillion pixels per band captured from 2015 to 2016 (120 TB)
Sentinel-1
SAR
20 meters per pixel resolution
680 billion pixels
Built from synthetic aperture radar (SAR) range/azimuth measurements captured from 2014 to 2017 (86 TB)