Evapotranspiration over the Qinghai Tibet Plateau is calculated by etwatch, a land surface evapotranspiration remote sensing model based on multi-scale and multi-source data. Etwatch adopts the method of combining the residual term method with P-M formula to calculate evapotranspiration. Firstly, according to the characteristics of the data image, the suitable model is selected to retrieve the evapotranspiration on a sunny day; the remote sensing model is often lack of data because the weather conditions can not obtain a clear image. In order to obtain the daily continuous evapotranspiration, the penman Monteith formula is introduced, and the evapotranspiration results on a sunny day are regarded as the "key frame", and the surface impedance information of the key frame is used as the basis to construct the surface impedance Based on the daily meteorological data, the time series data of evapotranspiration are reconstructed. Through the data fusion model, the high spatial and temporal resolution evapotranspiration data set is constructed by combining the low and medium resolution evapotranspiration temporal variation information with the high resolution evapotranspiration spatial difference information, so as to generate the 8 km resolution evapotranspiration of the Qinghai Tibet Plateau Data sets (1990-2015).

File naming and required software

File name: et data is stored in TIFF format, and the name of the file is "et"_ yyyy.tif ”Where yyyy stands for year, such as et_ TIF represents the spatial distribution of evapotranspiration over the Tibetan Plateau in 1990.
Data reading mode: TIF data can be opened directly by ArcGIS.

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Cite as:

Wang, X. (2020). 8 km resolution evapotranspiration dataset of the Tibetan Plateau (1990-2015). A Big Earth Data Platform for Three Poles, DOI: 10.11888/Meteoro.tpdc.271033. CSTR: 18406.11.Meteoro.tpdc.271033. (Download the reference： RIS | Bibtex )

Related Literatures:

1. Huang, F.R., Yang, T., Li, Q., Li, S.S., Li, L.H., & Suwannee, A. (2019). Reference evapotranspiration concentration and its relationship with precipitation concentration at southern and northern slopes of Tianshan Mountains, China. Journal of Mountain Science, 16(6), 1381-1395.( View Details | Bibtex)

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

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