Vertical Distribution Characteristics of Precipitation Cloud in Tianjin Based on L-band Sounding Data
作者机构：Weather Modification Office of TianjinTianjin 300074China Key Laboratory of Meteorology and Ecological Environment of Hebei ProvinceShijiazhuang 050021China Tianjin Meteorological Observation CenterTianjin 300074China Hebei Weather Modification OfficeShijiazhuang 050011China
出 版 物：《Meteorological and Environmental Research》 (气象与环境研究（英文版）)
年 卷 期：2021年第12卷第2期
页 面：17-19页
学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学]
基 金：Supported by Open Research Fund Project of Key Laboratory of Meteorology and Ecological Environment of Hebei Province(Z202001Z,Z201602Z) Science and Technology Collaborative Innovation Fund Project in Bohai Rim Region(QYXM202004) Key Projects of Tianjin Meteorological Bureau(201801zdxm01)
主 题：L-band sounding Vertical structure of cloud Relative humidity Precipitation cloud
摘 要：Based on L-band sounding data,threshold method of relative humidity was used to analyze vertical distribution characteristics of precipitation cloud system in Tianjin *** results showed that main precipitation cloud system affecting Tianjin is cold and warm mixed cloud,followed by cold cloud,and precipitation of warm cloud is *** May-November,precipitation of cold and warm mixed cloud is dominant,and it is dominant by precipitation of cold cloud from January to *** four seasons,the precipitation frequency of double-layer cloud is the most,and precipitation of single-layer cloud mainly appears during March-November,and peak is in *** of cloud system with three or more layers all appears in July and *** cold cloud and warm cloud catalysts should be selected respectively for artificial precipitation enhancement in *** winter,cold cloud catalyst operation is selected;in spring,summer and autumn,the cold cloud catalyst is spread in the cold cloud area,and the warm cloud catalyst is distributed in the warm cloud area according to the conditions of cloud layer.
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