Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL077891 |
Global Virga Precipitation Distribution Derived From Three Spaceborne Radars and Its Contribution to the False Radiometer Precipitation Detection | |
Wang, Yu1; You, Yalei2; Kulie, Mark3 | |
2018-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:9页码:4446-4455 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | This study first quantifies the virga precipitation occurrence percentage using three spaceborne radar observations, including Tropical Rainfall Measuring Mission Precipitation Radar (PR), Global Precipitation Measurement dual-frequency PR (Ku-band PR/Ka-band PR [KuPR/KaPR]), and CloudSat Cloud Profiling Radar (CPR). PR and KuPR/KaPR show that virga occurrence percentage is over 30% in arid regions (e.g., Sahara desert and deserts of Australia). CPR reveals similar virga geospatial distribution. However, the virga percentage based on CPR is about twice as large as that based on PR and KuPR/KaPR due to better detection sensitivity. Results also show that the majority of the virga clouds are altostratus and cirrus. Second, we investigate the virga precipitation contribution to the passive microwave radiometer false precipitation detection. Virga precipitation accounts for as much as 50% (30%) of Tropical Rainfall Measuring Mission Microwave Imager (Global Precipitation Measurement Microwave Imager) false detection results in arid regions. The underlying reason is because precipitation detection over land primarily relies on the ice scattering signature, while virga and light precipitation (e.g., 1 mm/hr) have similar amounts of ice water path in arid regions. |
英文关键词 | virga precipitation spaceborne radars microwave radiometer |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434111700077 |
WOS关键词 | RETRIEVAL ALGORITHMS ; MICROWAVE IMAGER ; LAND-SURFACE ; SATELLITE ; CLASSIFICATION ; SYSTEMS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/26656 |
专题 | 气候变化 |
作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Anhui, Peoples R China; 2.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, Cooperat Inst Climate & Satellites, College Pk, MD 20742 USA; 3.Michigan Technol Univ, Dept Geol & Min Engn & Sci, Houghton, MI 49931 USA |
推荐引用方式 GB/T 7714 | Wang, Yu,You, Yalei,Kulie, Mark. Global Virga Precipitation Distribution Derived From Three Spaceborne Radars and Its Contribution to the False Radiometer Precipitation Detection[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(9):4446-4455. |
APA | Wang, Yu,You, Yalei,&Kulie, Mark.(2018).Global Virga Precipitation Distribution Derived From Three Spaceborne Radars and Its Contribution to the False Radiometer Precipitation Detection.GEOPHYSICAL RESEARCH LETTERS,45(9),4446-4455. |
MLA | Wang, Yu,et al."Global Virga Precipitation Distribution Derived From Three Spaceborne Radars and Its Contribution to the False Radiometer Precipitation Detection".GEOPHYSICAL RESEARCH LETTERS 45.9(2018):4446-4455. |
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