Abstract
Soil moisture plays an important role in cli-mate change, water-energy cycle and vegetation change. This study mentioned the current conditions of soil mois-ture observations in CEOP, GEOSS and earth observa-tion satellite missions and then discussed some results of ground-based soil moisture observation in the study area of AMPEX/MAVEX/CEOP in the Mongolian plateau and AMSR-E soil moisture estimation in Asia. We got that it is very important and useful for CEOP and GEOSS to monitor soil moisture by ground-based stations and earth
observation satellites.