Interactions between precipitation, evapotranspiration and soil-moisture-based indices to characterize drought with high-resolution remote sensing and land-surface model data

Gaona, Jaime; Quintana-Seguí, Pere; Escorihuela, María José; Boone, Aaron; Llasat, María Carmen

doi:https://doi.org/10.5194/nhess-22-3461-2022

Articles | Volume 22, issue 10

https://doi.org/10.5194/nhess-22-3461-2022

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

https://doi.org/10.5194/nhess-22-3461-2022

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

Articles | Volume 22, issue 10

Research article

|

21 Oct 2022

Research article |

| 21 Oct 2022

Interactions between precipitation, evapotranspiration and soil-moisture-based indices to characterize drought with high-resolution remote sensing and land-surface model data

Jaime Gaona, Pere Quintana-Seguí, María José Escorihuela, Aaron Boone, and María Carmen Llasat

Supplement

https://doi.org/10.5194/nhess-22-3461-2022-supplement

Data sets

MOD16A2 v006 USGS https://lpdaac.usgs.gov/products/mod16a2v006/

SAFRAN analysis over Spain P. Quintana Segui https://doi.org/10.14768/MISTRALS-HYMEX.1388

SURFEX CNRM https://www.umr-cnrm.fr/surfex/spip.php?rubrique

MODIS global terrestrial evapotranspiration (ET) product (MOD16A2/A3 and year-end gap-filled MOD16A2GF/A3GF) NASA Earth Observing System MODIS Land Algorithm (for collection 6) S. W. Running, Q. Mu, M. Zhao, and A. Moreno https://doi.org/10.5067/MODIS/MOD16A2.061

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Short summary

Droughts represent a particularly complex natural hazard and require explorations of their multiple causes. Part of the complexity has roots in the interaction between the continuous changes in and deviation from normal conditions of the atmosphere and the land surface. The exchange between the atmospheric and surface conditions defines feedback towards dry or wet conditions. In semi-arid environments, energy seems to exceed water in its impact over the evolution of conditions, favoring drought.