One of the problems worsened by climate change is the occurrence of Sand Dust Storms (SDS), which are dry winds carrying sand. In recent years the numbers of SDSs have increased in North Africa, Australia and northern China. Satellite remote sensing (SR) is the main method for monitoring SDS as they happen. However its use for identifying sand dust storms over sandy ground such as Saharan desert is still limited as both materials share similar characteristics. In this paper, we propose a new approach to distinguish dust storms cloud from sandy ground and water cloud using Moderate Resolution Imaging Spectroradiometer (MODIS) bands.