[1]党张利,马思敏.六盘山区夏季一次层状云降水成因及宏微观特征分析[J].气象研究与应用,2023,44(02):75-80.[doi:10.19849/j.cnki.CN45-1356/P.2023.2.13]
　Dang Zhangli,Ma Simin.Analysis of the causes and macrophysical and microphysical in a summer stratiform precipitation over the Liupan Mountain[J].Journal of Meteorological Research and Application,2023,44(02):75-80.[doi:10.19849/j.cnki.CN45-1356/P.2023.2.13]
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六盘山区夏季一次层状云降水成因及宏微观特征分析()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第44卷
期数:
2023年02期
页码:
75-80
栏目:
研究论文
出版日期:
2023-06-15

文章信息/Info

Title:
Analysis of the causes and macrophysical and microphysical in a summer stratiform precipitation over the Liupan Mountain
作者:
党张利1; 2;  马思敏1; 2
1. 中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室, 银川 750002;
2. 宁夏回族自治区人工影响天气中心, 银川 750002
Author(s):
Dang Zhangli1; 2;  Ma Simin1; 2
1. Key Laboratory for Meteorological Disaster Monitoring and Early Warning and Risk Management of Characteristic Agriculture in Arid Regions, Yinchuan 750002, China;
2. Ning Xia Weather Modification Center, Yinchuan 750002, China
关键词:
六盘山区; 层状云降水; 双偏振雷达; 雨滴谱
Keywords:
Liupan Mountain; stratiform cloud precipitation; dual polarization radar; raindrop spectrum
分类号:
P426
DOI:
10.19849/j.cnki.CN45-1356/P.2023.2.13
摘要:
利用六盘山区1部X波段双偏振雷达、3部ka波段云雷达、3部Parsivel2雨滴谱仪的观测资料,分析了六盘山区夏季一次层状云降水成因及降水云系宏微观变化特征。结果表明,受锋面过境影响,六盘山区降水的时间和空间差异较大,降水云系反射率因子在20~36 dBZ之间,差分反射率因子在0~3.5dBZ之间,受阵性降水影响双偏振雷达显示相关系数均值在0.5~0.8之间;此次降水雨滴的等效直径较小,雨滴谱数浓度与等效直径随海拔高度增加分别呈现增大和减小趋势,由于山顶距离云底较近或在云内,小雨滴的浓度较大,随着降水的发生,西坡雨滴的谱型发生变化,而东坡谱型未发生变化,说明西坡由于碰并和小雨滴的蒸发,出现较强的阵性降水,与实况降水表现一致。
Abstract:
This paper analyzes the causes of primary stratiform cloud precipitation and the macro and microscopic variation characteristics of precipitation cloud systems in the Liupan Mountain area in summer using observations from a X-band dual-polarization radar, three ka-band cloud radars, and three Parsivel2 raindrop spectrometers. The results show that the temporal and spatial variation of precipitation in Liupan Mountain area is influenced by the frontal transit, with the reflectivity factor of the precipitation cloud system ranging from 20 to 36 dBz and the differential reflectivity factor ranging from 0 to 3.5 dB, and the dual polarimetric radar shows the mean value of the correlation coefficient ranging from 0.5~0.8 due to the influence of the shower. The equivalent diameter of raindrops of this precipitation is small, and the spectrum concentration of raindrop and equivalent diameter show an increasing and decreasing trend respectively with increasing altitude. The concentration of small raindrops is larger because the mountain top is closer to the cloud bottom or within the cloud, and the raindrop spectrum pattern of western slope changes with the occurrence of precipitation, while the spectrum pattern on the eastern slope does not change, which indicates that a stronger shower of precipitation on the western slope due to touching and evaporation of small raindrops, which is consistent with the precipitation manifested in the real situation.

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相似文献/References:

[1]邓佩云,陶涛,林彤,等.六盘山区两种不同型号Ka波段云雷达对比分析[J].气象研究与应用,2022,43(04):79.[doi:10.19849/j.cnki.CN45-1356/P.2022.4.13]
　Deng Peiyun,Tao Tao,Lin Tong,et al.Comparative analysis of two different Ka-band cloud radars in Liupan Mountain area[J].Journal of Meteorological Research and Application,2022,43(02):79.[doi:10.19849/j.cnki.CN45-1356/P.2022.4.13]

备注/Memo

备注/Memo:
收稿日期:2022-11-15。
基金项目:宁夏自然科学基金项目(2021AAC03489)、中国气象局旱区特色农业气象灾害监测预警与风险管理重点实验室项目(CAMP-202106)
作者简介:党张利(1988-),女,工程师,主要从事人工影响天气方面的研究。E-mail:1336833529@qq.com
更新日期/Last Update: 1900-01-01