Glacier data product in Tibetan Plateau (1976)


The Tibetan Plateau Glacial Data Product-TPG1976 is a glacial attribute product of the Tibetan Plateau around 1976. It was generated by remote sensing visual interpretation method adopting Landsat MSS multispectral data. The temporal coverage of the data were from 1972 to 1979. 61% of the remote sensing data were from 1976 to 1977. The data covered the Tibetan Plateau with a spatial resolution of approximately 60 m. Considering the large error of automatic remote sensing extraction method caused by the impact of cloud, shadow and seasonal snow on glacier area, the remote sensing inversion method adopted manual visual interpretation. By comparing the results of automatic methods and visual interpretation of glacier boundaries based on experts’ experiences, we know that the manual interpretation based on remote sensing images is still the most accurate method to obtain the glacier vector boundary at present. When selecting remote sensing images, the minimum effects of cloud and seasonal snow were mainly considered. Images of summer and cold season were both selected (different from the principle applied in selecting remote sensing image data source for China's second glacier inventory). At the same time, considering the differences in discriminant standards between different interpreters, the comparison of multiple typical regions showed that the relative deviation of manual visual interpretation was less than 4%. Based on the Arc map software platform, the abovementioned remote sensing images were geometrically corrected, and the final glacier vector boundary data were obtained by visual interpretation. According to the format and requirements of the second glacier inventory in China, the glacier code and area statistics were collected, and the elevation attribute data of each glacier was obtained based on the SRTM DEM data, and finally the 1976 glacial data product of the Tibetan Plateau was obtained.


Required Data Citation View Data Cite Help About Data Citation
Citations

1. Ye, Q.H., Zong, J.B.,Tian, L.D., et al. (2017). Glacier changes on the Tibetan Plateau derived from Landsat imagery: mid-1970s-2000-2013. Journal of Glaciology, 63(238), 273-87.( View Details | Bibtex)

Cite the data

YE Qinghua. Glacier data product in Tibetan Plateau (1976). National Tibetan Plateau Data Center, 2018. doi: 10.11888/GlaciolGeocryo.tpe.00000047.file. (Download the reference: RIS | Bibtex )

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


Support Program

CASEarth:Big Earth Data for Three Poles(grant No. XDA19070000)

User Limit

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

1. 2019-06-04 中科院成都山地所 赵慧 Usage:泛第三极项目内部数据分析

Comment

Sign In to add comments

Keywords
Geographic coverage
Spatial coverage

East: 105.00

South: 26.00

West: 72.00

North: 40.00

Detail
  • Temporal resolution: Yearly
  • File size: 86,500 MB
  • Browse count: 471 Times
  • Download count: 13 Times
  • Share mode: online
  • Temporal coverage: 1972-01-01 To 1979-12-31
  • Updated time: 2019-08-09
Download
Contact Information
: YE Qinghua  

Distributor: National Tibetan Plateau Data Center

Email: data@itpcas.ac.cn

Export metadata