Big Data System for Pan-Third Pole

China's second glacier inventory uses the high-resolution Landsat TM/ETM+ remote sensing satellite data as the main glacier boundary data source and extracts the data source with the latest global digital elevation model, SRTM V4, as the glacier attribute, using the current international ratio threshold segmentation method to extract the glacier boundary in bare ice areas. The ice ridge extraction algorithm is developed to extract the glacier ice ridge, and it is used for the segmentation of a single glacier. At the same time, the international general algorithm is used to calculate the glacier attributes, so that the vector data and attribute data that contain the glacier information of the main glacier regions in west China are obtained. Compared with some field GPS field measurement data and higher resolution remote sensing images (such as from QuickBird and WorldView), the glacial vector data in the second glacier inventory data set of China have higher positioning accuracy and can meet the requirements for glacial data in national land, water conservancy, transportation, environment and other fields.

Glacier inventory attributes:

Glc_Name, Drng_Code, FCGI_ID, GLIMS_ID, Mtn_Name, Pref_Name, Glc_Long, Glc_Lati, Glc_Area, Abs_Accu, Rel_Accu, Deb_Area, Deb_A_Accu, Deb_R_Accu, Glc_Vol_A, Glc_Vol_B, Max_Elev, Min_Elev, Mean_Elev, MA_Elev, Mean_Slp, Mean_Asp, Prm_Image, Aux_Image, Rep_Date, Elev_Src, Elev_Date, Compiler, Verifier.

For a detailed data description, please refer to the second glacier inventory data description.

Data file naming and use method

The file is named as "Second_Glacier_Inventory_China.shp", which can be viewed and edited in ArcGIS software.

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Citations

1. Guo,W.Q., Liu, S.Y., Xu, L., Wu, L.Z., Shangguan, D.H., Yao, X.J., Wei, J.F., Bao, W.J., Yu, P.C., Liu, Q., & Jiang, Z.L. (2015). The second Chinese glacier inventory: data, methods and results. Journal of Glaciology, 61(226), 357-372.( View Details)

Cite the data

LIU Shiyin. The Second Glacier Inventory Data Set of China (Version 1.0) (2006-2011). Big Data System for Pan-Third Pole, 2012. doi: 10.3972/glacier.001.2013.db. (Download the reference： RIS | Bibtex )

Using this data, you must reference article references listed in the Required Data Citation and reference data

References literature

1.Liu, S.Y., Yao, X.J., Guo, W.Q., Xu, J.L., Shangguan, D.H., Wei, J.F., Bao, W.J., Wu, L.Z. (2015). The contemporary glaciers in China based on the Second Chinese Glacier Inventory, Acta Geographica Sinica, 70(1): 3-16. (View Details )

2.Guo, W.Q., Liu, S.Y., Yu, P.C., Xu, J.L. (2011). Automatic extraction of ridgelines using on drainage boundaries and aspect difference. Science of Surveying and Mapping, 36(6), 210-212. (View Details )

3.Wei, J.F., Liu, S.Y., Guo, W.Q., Yao, X.J., Xu, J.L., Bao, W.J., &Jiang, Z.L. (2014). Surface-area changes of glaciers in the Tibetan Plateau Interior Area since 1970s using recent Landsat images and historical maps. Annals of Glaciology, 55(66), 213-222. (View Details | Download )

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