Impact of humidity biases on light precipitation occurrence: observations versus simulations

Bastin, Sophie; Drobinski, Philippe; Chiriaco, Marjolaine; Bock, Olivier; Roehrig, Romain; Gallardo, Clemente; Conte, Dario; Domínguez Alonso, Marta; Li, Laurent; Lionello, Piero; Parracho, Ana C.

doi:10.5194/acp-19-1471-2019

Articles | Volume 19, issue 3

https://doi.org/10.5194/acp-19-1471-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Hydrological cycle in the Mediterranean (ACP/AMT/GMD/HESS/NHESS/OS...

https://doi.org/10.5194/acp-19-1471-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 3

Research article

|

04 Feb 2019

Research article |

| 04 Feb 2019

Impact of humidity biases on light precipitation occurrence: observations versus simulations

Sophie Bastin, Philippe Drobinski, Marjolaine Chiriaco, Olivier Bock, Romain Roehrig, Clemente Gallardo, Dario Conte, Marta Domínguez Alonso, Laurent Li, Piero Lionello, and Ana C. Parracho

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Short summary

This paper uses colocated observations of temperature, precipitation and humidity to investigate the triggering of precipitation. It shows that there is a critical value of humidity above which precipitation picks up. This critical value depends on T and varies spatially. It also analyses how this dependency is reproduced in regional climate simulations over Europe. Models with too little and too light precipitation have both lower critical value of humidity and higher probability to exceed it.


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