The COMEO (Compression Of Models & Earth Observations) service, developed by VisioTerra, aims to compress Earth observation data (Sentinel-1 and Sentinel-2) and Earth modeling data (such as C3S ERA5) using lossy algorithms.

The following algorithms are available:

• DCT (based on JPEG-XL)
• DWT (based on JPEG 2000)
• LICH (AI-based)

The compression factor ranges from ×10 to ×250.

COMEO also includes a demonstration tool to illustrate the effects of lossy compression, as well as a mapping tool displaying a synthesis of Sentinel-1 IW data over the Mediterranean Sea across the full Sentinel-1 mission time range.

Discover COMEO here!