Analysis of Shallow Ground-water Based on SIR-C Data in North Ejin County of Inner Mongolia
航天飞机SIR—C数据对内蒙古额济纳旗北部浅层地下水的探测分析

Using shuttle imaging radar SIR-C data, the authors studied the distribution and formation of shallow layer ground-water in China-Mongolia boundary. The following results are obtained: 1. The bright yellow belt on the composite SIR-C imagery (R: L-HH,G:L-HV, B:C-HV)shows the distribution of shallow groundwater, as a result of radar volume scatter and backscatter caused by shallow groundwater level, and well-growing vegetation and sand solidification along sand-dune. 2. Landform varies from gentle to steep in China-Mongolia boundary of the research area, it is caused by normal fault. The Up-block in China relatively fall. This forms a favorable condition for water storage. 3. Radar remote sensing has the capability of penetrating dry sand and soil, and captures surface and subsurface moisture information, and possesses the sensitivity of reflection roughness or micro-topography of ground surface and the crown layer of vegetation. It has a great advantage for remote sensing study in arid region. Radar remote sensing has been one of the useful means in prospecting for shallow layer underground water in arid area.