Soil moisture and surface roughness measurements during HAPEX-Sahel 1992 : ground data collection report / P.J. van Oevelen, D.H. Hoekman en M.A.M. Vissers

Soil moisture and surface roughness measurements during HAPEX-Sahel 1992 : ground data collection report / P.J. van Oevelen, D.H. Hoekman en M.A.M. Vissers