Analysis of Relief Amplitude in Heilongjiang Province Based on ASTER GDEM
The relief amplitude is an important index to describe the Geomorphological form,which reflects the relief characteristics in the study area.Taking Heilongjiang Province as the research area,based on the ASTER GDEM(advanced spaceborne thermal emission and reflection radiometer global digital elevation model)data with 30 m resolution,with the support of ArcGIS platform,the relief amplitude was extracted with the neighborhood analysis method at different neighborhood windows.The best statistical unit area is 0.396 9 km2 through the mean change point method.On this basis,the features of relief amplitude were analyzed.The results show that the relief amplitude in Heilongjiang Province can be divided into 4 categories,mainly platform and hills,followed by plain.
relief amplitudeASTER GDEM(advanced spaceborne thermal emission and reflection radiometer global digital elevation model)mean change point analysisHeilongjiang Province
NETL
NSTL
万方数据
