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

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

doi:https://doi.org/10.5194/hess-26-5899-2022

Articles | Volume 26, issue 22

https://doi.org/10.5194/hess-26-5899-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-26-5899-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 22

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

Supplement

https://doi.org/10.5194/hess-26-5899-2022-supplement

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

Download

The requested paper has a corresponding corrigendum published. Please read the corrigendum first before downloading the article.

Article (8583 KB)
Full-text XML

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.