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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 30, issue 11
Ann. Geophys., 30, 1575–1586, 2012
https://doi.org/10.5194/angeo-30-1575-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 30, 1575–1586, 2012
https://doi.org/10.5194/angeo-30-1575-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular paper 08 Nov 2012

Regular paper | 08 Nov 2012

Diurnal variation of summer precipitation over the Tibetan Plateau: a cloud-resolving simulation

Jianyu Xu1, Bing Zhang1, Minghuan Wang1, and Huijuan Wang2 Jianyu Xu et al.
  • 1Wuhan Institute of Heavy Rain, China Meteorological Administration, Wuhan, China
  • 2Weather Modification Office of Hubei Province, Wuhan, China

Abstract. In this study, the Weather Research and Forecasting model was used to simulate the diurnal variation in summer precipitation over the Tibetan Plateau (TP) at a cloud-resolving scale. Compared with the TRMM, precipitation data shows that the model can well simulate the diurnal rainfall cycle with an overall late-afternoon maximum precipitation in the central TP and a nighttime maximum in the southern edge. The simulated diurnal variations in regional circulation and thermodynamics are in good correspondence with the precipitation diurnal cycles in the central and southern edge of TP, respectively. A possible mechanism responsible for the nocturnal precipitation maximum in the southern edge has been proposed, indicating the importance of the TP in regulating the regional circulation and precipitation.

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