Characteristics of Deep Convective System over Tibetan Plateau
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Abstract:
Based on the GPM (Global Precipitation Measurement mission) data from March to September in 2014-2018, the temporal and spatial distribution of the deep convective system and precipitation characteristics of the Tibetan Plateau region are studied. The results show that the deep convective systems in the main area of the Tibetan Plateau (25°-40°N, 70°-105°E) were mainly concentrated in the central, eastern and southern regions. The convective intensity was relatively small compared with other regions of the East Asian monsoon region, while the systems with relatively large convective intensity were mostly distributed in the eastern region of the Plateau. The deep convection systems mainly occurred in summer. In July and August, the frequency peaks and the convection were strong. The main activity area had the characteristics of extending southward, westward, and then retreating eastward. The deep convective activities mainly developed in the afternoon and showed a unimodal distribution. The precipitation intensity produced by the deep convective system of the plateau was relatively weak, mainly concentrated below 5 mm/h, and the precipitation produced by it also mainly was induced by weak convective activities with a low echo top height and small area.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.