Global projections of aridity index for mid and long-term future based on CMIP6 scenarios

Crapart, Camille; Anquetin, Sandrine; Blanchet, Juliette; Diedhiou, Arona

doi:10.5194/hess-30-163-2026

Articles | Volume 30, issue 1

https://doi.org/10.5194/hess-30-163-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-30-163-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 30, issue 1

Research article

| Highlight paper

|

13 Jan 2026

Research article | Highlight paper |

| 13 Jan 2026

Global projections of aridity index for mid and long-term future based on CMIP6 scenarios

Camille Crapart, Sandrine Anquetin, Juliette Blanchet, and Arona Diedhiou

Supplement

https://doi.org/10.5194/hess-30-163-2026-supplement

Data sets

CamilMC/Aridity: HESS submission Camille Crapart https://doi.org/10.5281/zenodo.16418241

Model code and software

CamilMC/Aridity: HESS submission Camille Crapart https://doi.org/10.5281/zenodo.16418241

Short summary

Our study investigates global dryland dynamics and aridification under future climate scenarios. By employing the Food and Agriculture Organisation Aridity Index and an ensemble of 13 models from the 6th Coupled Model Intercomparison Project, we provide projections for dryland distribution and aridity index across three shared socio-economic pathways (2-4.5, 3-7.0, and 5-8.5) for the near-term (2030–2059) and for the long-term (2070–2099) future.