Correcting Thornthwaite potential evapotranspiration using a global grid of local coefficients to support temperature-based estimations of reference evapotranspiration and aridity indices

Aschonitis, Vassilis; Touloumidis, Dimos; ten Veldhuis, Marie-Claire; Coenders-Gerrits, Miriam

doi:https://doi.org/10.5194/essd-14-163-2022

Articles | Volume 14, issue 1

https://doi.org/10.5194/essd-14-163-2022

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

https://doi.org/10.5194/essd-14-163-2022

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

Articles | Volume 14, issue 1

Data description paper

|

20 Jan 2022

Data description paper |

| 20 Jan 2022

Correcting Thornthwaite potential evapotranspiration using a global grid of local coefficients to support temperature-based estimations of reference evapotranspiration and aridity indices

Vassilis Aschonitis, Dimos Touloumidis, Marie-Claire ten Veldhuis, and Miriam Coenders-Gerrits

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https://doi.org/10.5194/essd-14-163-2022-supplement

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Correcting Thornthwaite evapotranspiration formula using a global grid of local coefficients to support temperature-based estimations of reference evapotranspiration and aridity indices Vassilis G. Aschonitis, Dimos Touloumidis, Marie-Claire ten Veldhuis, and Miriam Coenders-Gerrits https://doi.org/10.1594/PANGAEA.932638

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This work provides a global database of correction coefficients for improving the performance of the temperature-based Thornthwaite potential evapotranspiration formula and aridity indices (e.g., UNEP, Thornthwaite) that make use of this formula. The coefficients were produced using as a benchmark the ASCE-standardized reference evapotranspiration formula (formerly FAO-56) that requires temperature, solar radiation, wind speed, and relative humidity data.