TY  - Data
T1  - A new 2010 permafrost distribution map over the Qinghai–Tibet Plateau based on subregion survey maps: a benchmark for regional permafrost modeling
A1  - Zetao Cao
DO  - 10.6084/m9.figshare.19642362
PY  - 2023
DA  - 2023-09-05
PB  - National Cryosphere Desert Data Center
AB  - The permafrost of the Qinghai Tibet Plateau (QTP) has received increasing attention due to its high sensitivity to climate change. A large amount of spatial modeling research has been conducted on the Qinghai Tibet Plateau to evaluate the current situation of the frozen soil layer, predict future changes in the frozen soil layer, and diagnose the factors that cause changes in the frozen soil layer. However, high-quality permafrost distribution maps would be a good choice. The existing QTP permafrost distribution map is difficult to achieve this goal. The ideal spatial modeling benchmark map should have reasonable and accurate methods, and be based on observation data from surveying years, rather than all historical data from decades. Therefore, in this study, we adopted a novel method for mapping permafrost, using satellite derived surface melting and freezing indices as inputs and surveying based regional permafrost maps as constraints.  This dataset contains the new 2010 permafrost distribution map of the Qinghai Tibet Plateau and the data used in the mapping. All data is provided in the form of GeoTIFF (. tif) files. The spatial resolution is 1 km, and the geographic coordinate system is WGS_ 1984.  1. "permafrost_distribution_map_2010_QTP. tif" is the distribution map of permafrost over the Qinghai Tibet Plateau in 2010.  2. 'sour_cluster_QTP. tif' is the spatial distribution of soil masses in the Qinghai Tibet Plateau.  3. 'DDT mean annual. tif' contains the QTP average thawing index from 2005 to 2010, derived from MODIS LST data.  4. "DDF_mean_annual. tif" contains the annual frozen index of the QTP average from 2005 to 2010, derived from MODIS LST data.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/d887704d-54bc-4594-9a0b-0cb3c2833d51
ER  -