Distribution data of freezing (thawing) depth in Sichuan Tibet engineering corridor (2001-2100)

Distribution data of freezing (thawing) depth in Sichuan Tibet engineering corridor (2001-2100)

Based on gipl1.0 permafrost spatial distribution model, combined with the existing basic data, including climate change, soil types, and vegetation data, the permafrost and seasonal permafrost characteristics of Sichuan Tibet railway are simulated. The data result is 500m spatial resolution grid, including the maximum depth of permafrost and the maximum freezing depth of seasonal permafrost. The results are verified by drilling data. The data date is 2001-20192041-20602081-2100 (20-year average), in which the water body and glacier area are excluded from the calculation range through the mask (null value). The climate data is monthly mean, other data remain unchanged in the process of simulation, and the spatial resolution is 500m. Data sources and "woeldc" lim:https :// www.worldclim.org/ , DEM and vegetation soil: https://data.tpdc.ac.cn/zh-hans/ ”According to the characteristics of different data sources, the authenticity and consistency of the original data are checked and standardized; The permafrost model is used to simulate the permafrost and seasonal frozen soil. The output results are ground temperature and active layer (maximum frozen depth). The simulation results are verified with the borehole ground temperature. Finally, the spatial data set is mapped by ArcGIS. Make digital processing operation standard. In the process of processing, the operators are required to strictly abide by the operation specifications, and the special person is responsible for the quality review. The data integrity, logical consistency, position accuracy, attribute accuracy, edge connection accuracy and current situation are all in line with the requirements of relevant technical regulations and standards formulated by the State Bureau of Surveying and mapping. The data can provide necessary data support for the later research on the freezing (thawing) depth of the corridor of Sichuan Tibet project.

File naming and required software

The data is stored in compressed package format, and the file name is "the data set of freezing (thawing) depth in the Sichuan Tibet engineering corridor 2020. Zip", which represents the freezing (thawing) depth distribution data of Sichuan Tibet engineering corridor in 2020. All files in the dataset can be opened with ArcGIS.

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Cite as:

Yin, G. (2021). Distribution data of freezing (thawing) depth in Sichuan Tibet engineering corridor (2001-2100). National Tibetan Plateau Data Center, DOI: 10.11888/Geocry.tpdc.271283. CSTR: 18406.11.Geocry.tpdc.271283. (Download the reference: RIS | Bibtex )

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Support Program

Second Tibetan Plateau Scientific Expedition Program

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Example of acknowledgement statement is included below: The data set is provided by National Tibetan Plateau Data Center (http://data.tpdc.ac.cn).

License: This work is licensed under an Attribution 4.0 International (CC BY 4.0)

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Geographic coverage
East: 103.07 West: 89.12
South: 27.84 North: 33.28
  • Temporal resolution: Yearly
  • Spatial resolution: 100m - 1km
  • File size: 19 MB
  • Views: 864
  • Downloads: 188
  • Access: Open Access
  • Temporal coverage: 2001-2100
  • Updated time: 2022-04-18
: YIN Guoan  

Distributor: National Tibetan Plateau Data Center

Email: data@itpcas.ac.cn

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