Water index in the Qilian Mountain Area in 2018

Water index in the Qilian Mountain Area in 2018

This dataset contains the ground surface water (including liquid water, glacier and perennial snow) distribution in Qilian Mountain Area in 2018. The dataset was produced based on classical Normalized Difference Water Index (NDWI) extraction criterion and manual editing. Landsat images collected in 2018 were used as basic data for water index extraction. Sentinel-2 images and Google images were employed as reference data for adjusting the extraction threshold. The dataset was stored in SHP format and attached with the attributions of coordinates and water area. Consisting of 1 season, the dataset has a temporal resolution of 1 year and a spatial resolution of 30 meters. The accuracy is about 1 pixel (±30 meter). The dataset directly reflects the distribution of water bodies within the Qilian Mountain in 2018, and can be used for quantitative estimation of water resource.

File naming and required software

File Naming Convention: Class_coordinate_YYYY.shp (YYYY: year)
Data Version:V1.0
Projection:+proj=longlat +datum=WGS84 +no_defs
Data Format: shp
Water body:Polygon vector

Data Citations Data citation guideline What's data citation?
Cite as:

Li, J. (2019). Water index in the Qilian Mountain Area in 2018. National Tibetan Plateau Data Center, DOI: 10.11888/Geogra.tpdc.270127. CSTR: 18406.11.Geogra.tpdc.270127. (Download the reference: RIS | Bibtex )

Related Literatures:

1. Li Jia, Li Jian-jiang, Li Xin, Liu Shaomin. (2019). Water index in the Qilian mountains in 2018. Big Data System for Pan-Third Pole.( View Details | Bibtex)

Using this data, the data citation is required to be referenced and the related literatures are suggested to be cited.

References literature

1.Du, Z.Q., Li, W.B., Zhou, D.B., Tian, L.Q., Ling, F., Wang, H.L., Gui, Y.M., &Sun, B.Y. (2014). Analysis of Landsat-8 OLI imagery for land surface water mapping. Remote Sensing Letters, 5(7), 672-681. (View Details )

2.Liu, G.L., Zhang, L.C., Liu, J., Li, G.Y. (2013). Water body information extraction based on Landsat TM remote sensing imagery. Journal of University of Chinese Academy of Sciences, 30(5), 644-650. (View Details )

Support Program

Pan-Third Pole Environment Study for a Green Silk Road-A CAS Strategic Priority A Program (No:XDA20000000)

the Strategic Priority Research Program of the Chinese Academy of Sciences (No:XDA20100101) [XDA20100101]

Copyright & License

To respect the intellectual property rights, protect the rights of data authors,expand servglacials of the data center, and evaluate the application potential of data, data users should clearly indicate the source of the data and the author of the data in the research results generated by using the data (including published papers, articles, data products, and unpublished research reports, data products and other results). For re-posting (second or multiple releases) data, the author must also indicate the source of the original data.

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)

Related Resources

Current page automatically show English comments Show comments in all languages

FTP Download Info

Ftp server:

Ftp username: download_114798

Ftp password: 87628677

Download Follow
Geographic coverage
East: 107.00 West: 89.00
South: 34.00 North: 45.00
  • Temporal resolution: Yearly
  • Spatial resolution: m
  • File size: 45 MB
  • Views: 1,943
  • Downloads: 67
  • Access: Open Access
  • Updated time: 2021-04-19
: LI Jia  

Distributor: National Tibetan Plateau Data Center

Email: data@itpcas.ac.cn

Export metadata