TOPOGRAPHY
2013-08-16 09:40:10.0 [tbs1979] update Definition (The unevenness of the land surface that results in friction for fluid flow. This can be influenced by the presence of such things as vegetation, water bodies, mountains and other landforms, etc.); update Definition (NASA EOSDIS);
SURFACE ROUGHNESS
The unevenness of the land surface that results in friction for fluid flow. This can be influenced by the presence of such things as vegetation, water bodies, mountains and other landforms, etc.