CWatM evapotranspiration, six global evapotranspiration products and CMIP6 projections for the Karun, Karkheh and Marzi-e-Gharb basins, southwest Iran

Data and code for the evaluation of actual evapotranspiration (ET) simulated by the Community Water Model (CWatM) against six global ET datasets, and for its CMIP6 projections, in the Karun, Karkheh and Marzi-e-Gharb basins of southwest Iran.

1. Gridded daily and monthly CWatM output (NetCDF, 0.5°) of three ET components, land-surface evapotranspiration (totalET), lake and reservoir evaporation (EvapWaterBodyM) and channel evaporation (EvapoChannel), for a retrospective run forced by GSWP3-W5E5 (1981–2019) and for 15 runs forced by five ISIMIP3b bias-adjusted CMIP6 models (GFDL-ESM4, IPSL-CM6A-LR, MPI-ESM1-2-HR, MRI-ESM2-0, UKESM1-0-LL) under SSP1-2.6, SSP3-7.0 and SSP5-8.5 (2015–2100).
2. Release 1.0.0 of the code repository CWatM-et-southwest-Iran: Python and Google Earth Engine scripts; basin-mean monthly ET of the model and of GLDAS-Noah, TerraClimate, MOD16A2 (1 km and 500 m), PML-V2 and SMAP L4; long-term mean ET maps on a 0.01° grid; elevation, land-cover and climate-class grids; basin precipitation and temperature series; and all tables and figures of the related research article.

README.md describes every file, the units, and known metadata issues of the NetCDF files.