青藏高原多年冻土分布现状图件（2003）

青藏高原被称为“世界第三极”和“亚洲水塔”，一个较为准确的青藏高原冻土图对当地寒区工程和环境建设有着重要意义。因此，为了满足工程和环境需求，通过多源遥感数据（高程、MODIS地表温度、植被指数和土壤水分）建立决策树对青藏高原多年冻土和季节冻土进行了划分。数据为栅格格式，DN=1为多年冻土；DN=2为季节冻土。

The Qinghai-Tibet Plateau is known as the "Third Pole of the World" and the "Water Tower of Asia". A relatively accurate permafrost map of the Qinghai-Tibet Plateau is of great significance for local cold-region engineering and environmental construction. Therefore, to meet the engineering and environmental demands, a decision tree was established using multi-source remote sensing data (elevation, MODIS land surface temperature, vegetation index and soil moisture) to classify permafrost and seasonally frozen soil on the Qinghai-Tibet Plateau. The data is in raster format, where DN=1 represents permafrost and DN=2 represents seasonally frozen soil.