干旱区生态环境知识资源中心(Arid): 干旱内陆区声波干预下降雨微物理特征研究

Arid

	干旱内陆区声波干预下降雨微物理特征研究
其他题名	Microphysical characteristics of precipitation under the intervention of acoustic over an inland arid region
	潘佩翀; 时洋; 赵智丰; 王佳; 曹炯玮; 柏文文; 解宏伟; 魏加华
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2021
卷号	44 期号:4 页码:906-913
中文摘要	利用2019年6-9月青海省干旱内陆区雨滴谱仪和雨量筒数据,运用物理检验法和统计方法,分析了超高功率集束强声波干预下近地面降雨微物理特征变化。结果表明:(1)声波干预下,累计降雨量增加,降雨量增加和减少的场次分别占研究总场次的60.87%和39.13%。平均粒径、液态水含量、雷达反射率因子、雨强和降雨动能等微物理量均值明显增大,雨强和动能增幅最为明显,分别为36.00%和69.20%。(2)声波干预下,平均谱大粒子端(>0.8 mm)粒子数浓度增加,且雨强越大,粒子数浓度增加效果越明显。(3)空间分布上,作业中心周边3 km范围内雨强在声波干预下显著增加。
英文摘要	This study analyzes the microphysical characteristics of precipitation under acoustic intervention in China's inland arid region,based on the results of acoustic rain enhancement experiments conducted from June to September,2019,in a study area (37°27'36'' E,96°48'00''N) located in the northeastern edge of the Qaidam Basin,Qinghai Province.This region,which has an average elevation of 2980 m,has a highland continental climate and experiences year-round drought and little rain:the average annual precipitation is approximately 204.7 mm.Most of the annual precipitation typically occurs in the wet season,which lasts from June to August.The observed precipitation data were obtained using an OTT Parsivel laser raindrop spectrometer and a tipping bucket rain gauge and have been analyzed using statistical analysis and physical inspection methods to compare the microphysical characteristics of the precipitation under acoustic interference and nonacoustic interference.Furthermore,the raindrop size distribution is described by a Gamma distribution.The major contributions of this study are as follows:(1) The accumulated precipitation increased after the acoustic equipment was turned on,and the proportions of events with increased precipitation and reduced precipitation were 60.87% and 39.13%, respectively.The average values of the microphysical parameters (e.g.,the average particle size,liquid water content,radar reflectivity factor,rainfall intensity,and kinetic energy) were greater by varying degrees after the acoustic equipment was turned on.The increase of the average particle size,radar reflectivity factor,and liquid water content were 3.23%,6.12%,and 11.43%,respectively.The changes in the rainfall intensity and kinetic energy were the most obvious,with an increase of 36.00% and 69.20%,respectively.(2) The mean raindrop size distribution of the total rainfall sample changed and the shape factor of the fitted distribution decreased after the acoustic equipment was turned on.The concentration of raindrop particles increased after approximately 0.8 mm.Additionally,the analysis of the relationship between the standardized intercept parameter and the rainfall intensity after the intervention of acoustic waves shows that the particle number concentration increased with the increase in the rain intensity.(3) Regarding the rainfall intensity at different distances from the test's origin after the acoustic equipment was turned on and off,it was found that the rain intensity value increased significantly within 3 km after the sound wave was turned on.This shows that acoustic intervention has a certain impact on the surrounding rainfall.Based on the above analysis,acoustic intervention is seen to have a significant impact on precipitation in terms of the microphysical and spatial distribution.Unlike the traditional precipitation enhancement studies that use catalyst spreading technology,this article focuses on the study of a new artificial precipitation enhancement method:acoustic precipitation enhancement.In it,a detailed analysis is undertaken of the surface precipitation microphysical characteristics,rainfall changes,and rainfall intensity distribution under acoustic interference.The results reported in this study offer a new avenue for the analysis of the microphysical characteristics of acoustic precipitation in inland arid regions,which is of value to wider acoustic precipitation enhancement experiments and their evaluation.
中文关键词	声波 ; 人工增雨 ; 雨滴谱 ; 降雨微物理特征 ; 柴达木盆地
英文关键词	acoustic precipitation enhancement drop size distribution (DSD) microphysical characteristics of precipitation Qaidam Basin
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:7034567
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377631
作者单位	潘佩翀, 青海大学水利电力学院, 三江源生态与高原农牧业国家重点实验室, 西宁, 青海 810016, 中国.; 赵智丰, 青海大学水利电力学院, 三江源生态与高原农牧业国家重点实验室, 西宁, 青海 810016, 中国.; 王佳, 青海大学水利电力学院, 三江源生态与高原农牧业国家重点实验室, 西宁, 青海 810016, 中国.; 曹炯玮, 青海大学水利电力学院, 三江源生态与高原农牧业国家重点实验室, 西宁, 青海 810016, 中国.; 柏文文, 青海大学水利电力学院, 三江源生态与高原农牧业国家重点实验室, 西宁, 青海 810016, 中国.; 解宏伟, 青海大学水利电力学院, 三江源生态与高原农牧业国家重点实验室, 西宁, 青海 810016, 中国.; 时洋, 青海大学水利电力学院;;清华大学, 三江源生态与高原农牧业国家重点实验室;;水沙科学与水利水电工程国家重点实验室, 西宁;;, 青海;;北京 810016;;100084, 中国.; 魏加华, 青海大学水利电力学院;;清华大学, 三江源生态与高原农牧业国家重点实验室;;水沙科学与水利水电工程国家重点实验室, 西宁;;, 青海;;北京 810016;;100084, 中国.
推荐引用方式 GB/T 7714	潘佩翀,时洋,赵智丰,等. 干旱内陆区声波干预下降雨微物理特征研究[J],2021,44(4):906-913.
APA	潘佩翀.,时洋.,赵智丰.,王佳.,曹炯玮.,...&魏加华.(2021).干旱内陆区声波干预下降雨微物理特征研究.干旱区地理,44(4),906-913.
MLA	潘佩翀,et al."干旱内陆区声波干预下降雨微物理特征研究".干旱区地理 44.4(2021):906-913.