A new map of permafrost distribution on the Tibetan Plateau (2017)

Qinghai Tibet Plateau is the largest permafrost area in the world. At present, some permafrost distribution maps have been compiled. However, due to the limited data sources, unclear standards, insufficient verification and lack of high-quality spatial data sets, there is great uncertainty in drawing Permafrost Distribution Maps on TP.Based on the improved medium resolution imaging spectrometer (MODIS) surface temperature (LSTS) model of 1 km clear sky mod11a2 (Terra MODIS) and myd11a2 (Aqua MODIS) product (reprocessing version 5) in 2003-2012, the data set simulates the distribution of permafrost and generates the permafrost map of Qinghai Tibet Plateau. The map was verified by field observation, soil moisture content and bulk density.Permafrost attributes mainly include: seasonally frozen ground, permafrost and unfrozen ground.The data set provides more detailed data of Permafrost Distribution and basic data for the study of permafrost in the Qinghai Tibet Plateau.

青藏高原是全球最大的永冻土区域。截至目前，已编制了一些永冻土分布图。然而，由于数据源有限、标准不明确、验证不足以及缺乏高质量的空间数据集，青藏高原永冻土分布图的绘制存在较大不确定性。基于2003-2012年间改进的中分辨率成像光谱仪（MODIS）地表温度（LSTS）模型，包括1公里晴空模式的mod11a2（Terra MODIS）和myd11a2（Aqua MODIS）产品（重处理版本5），该数据集模拟了永冻土的分布并生成了青藏高原的永冻土图。该地图经实地观测、土壤水分含量和容重验证。永冻土属性主要包括季节性冻土、永冻土和未冻结土。数据集提供了青藏高原永冻土分布的更详细数据和永冻土研究的基本数据。