The quantification of mountain base elevation based on mountain structure modeling

The mountain base elevation, which refers to the initial altitude of a or altitudinal belt, is great significance for study zonality and mass elevation effect. However, fast efficient algorithm automatic extraction still lacking; therefore, new method based on structure modeling calculate proposed Qinling-Daba Mountains (QDM). result shows that 1) structures in different catchments can be divided into six types, namely, pyramid, low-diamond, diamond, inverse hourglass, ellipsoid, each type has specific distribution law; 2) structure, calculation ranges from 99 m 3,979 m, being high west, north, south low east middle, consistent with overall terrain Mountains; 3) there good linear correlation between average R 2 = 0.96 ( p < 0.01), also indicates quantification works well areas complex terrain.