Distribution data of permafrost in the source area of the Yellow River (2013-2015)

The distribution data of permafrost in the source area of the Yellow River is established based on the annual average ground temperature model of permafrost in the source area of the Yellow River. The annual average ground temperature of 0 ℃ is taken as the standard and boundary for dividing seasonal frozen soil and permafrost. Compared with the available permafrost maps of the source region of the Yellow River (1:3 million) and the permafrost background survey project of the Qinghai Tibet Plateau (1:1 million), the data set is based on the measured data of the Yellow River source area, which has higher consistency with the measured data, and the simulation accuracy of the permafrost distribution map is the highest. The data set can be used to verify the distribution of permafrost in the source area of the Yellow River, as well as to study the frozen soil environment.

黄河源区冻土分布数据基于黄河源区冻土年平均地温模型构建。以0℃年平均地温为标准及分界点，区分季节性冻土与永久冻土。与黄河源区现有永久冻土图（比例尺1:300万）及青藏高原永久冻土背景调查项目（比例尺1:100万）相比，本数据集依托黄河源区实测数据，与实测数据一致性更高，永久冻土分布图的模拟精度亦为最高。该数据集可应用于验证黄河源区永久冻土分布，并研究冻土环境。