Articles | Volume 26, issue 22
https://doi.org/10.5194/hess-26-5899-2022
https://doi.org/10.5194/hess-26-5899-2022
Research article
 | 
25 Nov 2022
Research article |  | 25 Nov 2022

Evaluating the accuracy of gridded water resources reanalysis and evapotranspiration products for assessing water security in poorly gauged basins

Elias Nkiaka, Robert G. Bryant, Joshua Ntajal, and Eliézer I. Biao

Data sets

GRACE/GRACE-FO Mascons NASA https://earth.gsfc.nasa.gov/geo/data/grace-mascons

Monthly global observation-driven Penman-Monteith-Leuning (PML) evapotranspiration and components CSIRO https://data.csiro.au/dap/landingpage?pid=csiro:17375

Model code and software

Evaluation of WRR and ET estimates HESS scripts E. Nkiaka https://doi.org/10.5281/zenodo.7347782

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Short summary
Achieving water security in poorly gauged regions is hindered by a lack of in situ hydrometeorological data. In this study, we validated nine existing gridded water resource reanalyses and eight evapotranspiration products in eight representative gauged basins in Central–West Africa. Our results show the strengths and and weaknesses of the existing products and that these products can be used to assess water security in ungauged basins. However, it is imperative to validate these products.