This data set is the spectral reflectance data of typical features in Ali during August to September in 2017, using ASD FieldSpec 4. The day of spectral data obtaining was sunny, we recorded the cloud condition during measuring. The white board was calibrated before measurement; The longitude and latitude coordinates are recorded by GPS. We measured the spectral reflectance data of different vegetation types and soil surrounding them. The DN value (.asd format) recorded by instrument can be read by ViewSpecPro, then converted into reflectance using EXCEL with the white board data. Spectral reflectance data is used to extract spectral characteristics of different vegetation types, vegetation classification, inversion of vegetation coverage and so on.

File naming and required software

The folder is the sampling time, and the file numbers in each folder are arranged from 1. For the specific information corresponding to the number, see "external spectrum information. XLS", including measurement time, sample plot number, longitude and latitude, elevation, cloud amount during spectrum measurement, number, number, corresponding feature type and feature type description.

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Cite as:

Liu, L., Zhang, B. (2021). Spectral reflectance data of typical features -- Ali, Tibet (2017). A Big Earth Data Platform for Three Poles, DOI: 10.11888/Terre.tpdc.271915. CSTR: 18406.11.Terre.tpdc.271915. (Download the reference： RIS | Bibtex )

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

Support Program

Second Tibetan Plateau Scientific Expedition Program

Copyright & License

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