Vegetation coverage data of Sichuan Tibet traffic corridor (1985-2020)

Vegetation coverage data of Sichuan Tibet traffic corridor (1985-2020)


NDVI of Landsat 5,7,8 images was used to extract the vegetation coverage of Sichuan Tibet transportation corridor from 1985 to 2020. The data is divided into seven periods, each with a time span of five years. From USGS( https://www.usgs.gov/core-science-systems/nli/landsat/landsat-surface-reflectance )。

The vegetation coverage can be divided into seven periods, each with a time span of 5 years. The calculation process is mainly divided into three steps: first, obtain all the images with cloud fraction less than 20 in the period, calculate the NDVI value, and synthesize the NDVI map of the current period by using the median synthesis method; The second step is to calculate the maximum and minimum NDVI, ndvimax and ndvimin; The third step is to get the vegetation coverage through the formula FVC = (NDVI ndvimin) / (ndvimax ndvimin). Due to the use of Landsat data, the spatial resolution of the original vegetation coverage product is 30 m, and this data is obtained after sampling 1000 m.


File naming and required software

Place + theme + time
Using the software that can open the raster data, only one band (named NDVI) in the file is the vegetation coverage value.


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Cite as:

Sui, T. (2021). Vegetation coverage data of Sichuan Tibet traffic corridor (1985-2020). National Tibetan Plateau Data Center, DOI: 10.11888/Soil.tpdc.271618. CSTR: 18406.11.Soil.tpdc.271618. (Download the reference: RIS | Bibtex )

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Keywords
Geographic coverage
East: 104.82 West: 90.34
South: 28.83 North: 32.09
Details
  • Temporal resolution: 1 year < x < 10 year
  • Spatial resolution: 100m - 1km
  • File size: 37 MB
  • Views: 166
  • Downloads: 7
  • Access: Open Access
  • Temporal coverage: 1985-01-01 To 2020-12-31
  • Updated time: 2021-07-19
Contacts
: SUI Tianbo  

Distributor: National Tibetan Plateau Data Center

Email: data@itpcas.ac.cn

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