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ACP | Articles | Volume 19, issue 3
Atmos. Chem. Phys., 19, 1471–1490, 2019
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...

Atmos. Chem. Phys., 19, 1471–1490, 2019
https://doi.org/10.5194/acp-19-1471-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 04 Feb 2019

Research article | 04 Feb 2019

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

Sophie Bastin et al.

Data sets

GPS data: Daily and monthly reprocessed IWV data from 120 global GPS stations, version 1.2 O. Bock https://doi.org/10.14768/06337394-73a9-407c-9997-0e380dac5591

ReOBS: a new approach to synthesize long-term multi-variable dataset and application to the SIRTA supersite M. Chiriaco, J.-C. Dupont, S. Bastin, J. Badosa, J. Lopez, M. Haeffelin, H. Chepfer, and R. Guzman https://doi.org/10.14768/4F63BAD4-E6AF-4101-AD5A-61D4A34620DE

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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.
This paper uses colocated observations of temperature, precipitation and humidity to investigate...
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