|
|
|
| Analysis of surface raindrop spectrum characteristics of spring convective precipitation and squall line precipitation in Xinyu area |
| Zhang Jie1, Zhang Sirui2, Zou Yanfeng3, Chen Jiasheng4, Liao Xin4 |
1. Xinyu Meteorological Bureau,Xinyu 338001;
2. Shangrao Meteorological Bureau,Shangrao 334000;
3. Fenyi Meteorological Bureau,Fenyi 336699;
4. Yushui District Meteorological Bureau,Xinyu 338008 |
|
|
|
|
Abstract In order to deeply understand the differences of raindrop spectrum distribution characteristics between convective precipitation and squall line precipitation and explore their microscopic precipitation mechanism,the raindrop spectrum observation data of DSG5 precipitation phenomenon instrument in Xinyu City,automatic weather station observation data and radar data were used to analyze the raindrop spectrum characteristics of convective and squall line processes in Xinyu area of Jiangxi province on April 16,2024.The results show that the raindrop concentration and number density of squall line precipitation are much higher than those of convective precipitation,and the average diameter of raindrops is larger,with a higher proportion of large raindrops.The stronger the precipitation intensity,the higher the number density of small raindrops.When the echo reflectivity and extension height increase,the raindrops also increase.In terms of raindrop spectrum characteristics,convective precipitation has a threepeak spectrum,while squall line precipitation has a wider spectrum and is multipeak.During the squall line precipitation process,the raindrop spectrum changes sharply from the front to the convective center,with a significant increase in the number and size of raindrops.The massweighted average diameter Drm can reach 5.53 mm,and the precipitation intensity is the strongest.of structure.These results can deepen the understanding of the microphysical characteristics of severe convection and squall line process in Jiangxi,and further improve the forecast and early warning service effect.
|
|
Received: 20 December 2024
|
|
|
|
|
|
| Cite this article: |
|
Zhang Jie,Zhang Sirui,Zou Yanfeng等. Analysis of surface raindrop spectrum characteristics of spring convective precipitation and squall line precipitation in Xinyu area[J]. Meteorological Hydrological and Marine Instrument, 2026, 43(5): 100-103.
|
|
|
|
| URL: |
| http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2026/V43/I5/100 |
| [1] |
付晶,计桂平,黄龙飞.2021年5月15日景德镇地区一次强对流过程分析[J].江西科学,2022,40(4):729733.
|
| [2] |
刘强,刘懿枢,杨洁,等.“20230725”鹰潭短时强降水过程分析[J].气象水文海洋仪器,2024,41(1):7678,83.
|
| [3] |
徐渊,钱学成,陶雅琴,等.2023年4月35日江西一次强对流天气过程成因及预报分析[J].气象与减灾研究,2023,46(3):163174.
|
| [4] |
丁一汇,李鸿洲,章名立,等.我国飑线发生条件的研究[J].大气科学,1982,6(1):1827.
|
| [5] |
郑腾飞,黄健,万齐林,等.一次华南海岸带台前飑线的结构特征与环境条件的观测研究[J].热带气象学报,2017,33(6):933944.
|
| [6] |
Atlas D,Srivastava R C,Sekhon R S.Doppler radar characteristics of precipitation at vertical incidence[J].Reviews of Geophysics and Space Physics,1973,11(1):135.
|
| [7] |
温龙.中国东部地区夏季降水雨滴谱特征分析[D].南京:南京大学,2016.
|
|
|
|
2026, Vol. 43 
