Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.07.013 |
The impact of ground-based glaciogenic seeding on a shallow stratiform cloud over the Sierra Madre in Wyoming: A multi-sensor study of the 3 March 2012 case | |
Pokharel, Binod1,2; Geerts, Bart1; Jing, Xiaoqin1 | |
2018-12-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 214页码:74-90 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A case study is presented of the impact of ground-based glaciogenic seeding on a shallow, lightly precipitating orographic storm with abundant supercooled cloud droplets, but few ice particles. The storm was observed on 3 March 2012 as part of the AgI (silver iodide) Seeding Cloud Impact Investigating (ASCII) experiment in Wyoming. The cloud base temperature was about - 9 degrees C, and cloud tops were at about -16 degrees C. The high concentration of small droplets and low ice particle concentration lead to natural snow growth, mainly by vapor diffusion. The question addressed here is whether the injection of ice nucleating particles (AgI) enhanced snow growth and snowfall. The treated (seeded) period is compared with the preceding untreated (noseeded) period, and natural trends (observed in an adjacent control region) are removed. The main target site, located on a mountain pass at an elevation above cloud base, was impacted by AgI seeding, according to a trace chemistry analysis of freshly fallen snow. Data from three radar systems were used: the Wyoming Cloud Radar, two Ka-band profiling Micro-Rain Radars, and a X-band scanning Doppler-on-Wheels (DOW) radar. Composite data from these radar systems and from gauges in the target area indicate an increase in low-level reflectivity and precipitation rate during seeding. This finding generally agrees with other published ASCII case studies. The increase in reflectivity during seeding in the target area appears to be due mainly to an increase in particle size (aggregation), not number concentration, as suggested by DOW differential reflectivity and by disdrometer and Cloud Particle Imager measurements on the ground. |
英文关键词 | Glaciogenic seeding orographic cloud and precipitation radar reflectivity profiles airbome measurements |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445990400007 |
WOS关键词 | RADAR DATA-ANALYSIS ; OROGRAPHIC CLOUDS ; WEATHER-MODIFICATION ; LES SIMULATIONS ; PRECIPITATION ; REFLECTIVITY ; MOUNTAINS ; SNOW ; DESIGN ; RAIN |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38267 |
专题 | 地球科学 |
作者单位 | 1.Univ Wyoming, Dept Atmospher Sci, Laramie, WY 82071 USA; 2.Utah State Univ, Utah Climate Ctr, Logan, UT 84322 USA |
推荐引用方式 GB/T 7714 | Pokharel, Binod,Geerts, Bart,Jing, Xiaoqin. The impact of ground-based glaciogenic seeding on a shallow stratiform cloud over the Sierra Madre in Wyoming: A multi-sensor study of the 3 March 2012 case[J]. ATMOSPHERIC RESEARCH,2018,214:74-90. |
APA | Pokharel, Binod,Geerts, Bart,&Jing, Xiaoqin.(2018).The impact of ground-based glaciogenic seeding on a shallow stratiform cloud over the Sierra Madre in Wyoming: A multi-sensor study of the 3 March 2012 case.ATMOSPHERIC RESEARCH,214,74-90. |
MLA | Pokharel, Binod,et al."The impact of ground-based glaciogenic seeding on a shallow stratiform cloud over the Sierra Madre in Wyoming: A multi-sensor study of the 3 March 2012 case".ATMOSPHERIC RESEARCH 214(2018):74-90. |
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