L4 Surface Roughness Map

Important note regarding the "L4 Surface Roughness Map" (2025/03/24)

The product is available from the CATDS https://data.catds.fr/cecsm/Land_products/L4_Surface_Roughness_map/
The associated documentation is available : https://data.catds.fr/cecsm/Land_products/L4_Surface_Roughness_map/documentation/
However, there is an issue with the dataset leading to missing value over arid deserts (e.g. Sahara) and dense forests. We are currently working on some improvements (surface effects) including correcting the aforementioned bug, we will provide a more up to date product later this year, which will more relevant  for L-band applications, and should better account for surface effects.

Stay tune for news on this later in 2025

Product access

HTTPS access

This research product is freely available on HTTPS:
https://data.catds.fr/cecsm/Land_products/L4_Surface_Roughness_map/

FTP access

This researche product is freely available on FTP:
ftp ftp.ifremer.fr
user: ext-catds-cecsm
password: catds2010
chdir: Land_products/L4_Surface_Roughness_map
or ftp://ext-catds-cecsm:catds2010@ftp.ifremer.fr/Land_products/L4_Surface_Roughness_map (no longer works in the recent versions of most of the web browers)