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DOI | 10.1002/2017JD027775 |
Evolution of Precipitation Structure During the November DYNAMO MJO Event: Cloud-Resolving Model Intercomparison and Cross Validation Using Radar Observations | |
Li, Xiaowen1; Janiga, Matthew A.2,3,4; Wang, Shuguang5; Tao, Wei-Kuo6; Rowe, Angela7; Xu, Weixin8; Liu, Chuntao9; Matsui, Toshihisa10; Zhang, Chidong11 | |
2018-04-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:7页码:3530-3555 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Evolution of precipitation structures are simulated and compared with radar observations for the November Madden-Julian Oscillation (MJO) event during the DYNAmics of the MJO (DYNAMO) field campaign. Three ground-based, ship-borne, and spaceborne precipitation radars and three cloud-resolving models (CRMs) driven by observed large-scale forcing are used to study precipitation structures at different locations over the central equatorial Indian Ocean. Convective strength is represented by 0-dBZ echo-top heights, and convective organization by contiguous 17-dBZ areas. The multi-radar and multi-model framework allows for more stringent model validations. The emphasis is on testing models' ability to simulate subtle differences observed at different radar sites when the MJO event passed through. The results show that CRMs forced by site-specific large-scale forcing can reproduce not only common features in cloud populations but also subtle variations observed by different radars. The comparisons also revealed common deficiencies in CRM simulations where they underestimate radar echo-top heights for the strongest convection within large, organized precipitation features. Cross validations with multiple radars and models also enable quantitative comparisons in CRM sensitivity studies using different large-scale forcing, microphysical schemes and parameters, resolutions, and domain sizes. In terms of radar echo-top height temporal variations, many model sensitivity tests have better correlations than radar/model comparisons, indicating robustness in model performance on this aspect. It is further shown that well-validated model simulations could be used to constrain uncertainties in observed echo-top heights when the low-resolution surveillance scanning strategy is used. |
英文关键词 | precipitation structure MJO radar cloud-resolving model validation model intercomparison |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430786500012 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; MESOSCALE CONVECTIVE SYSTEMS ; SHIP-BORNE RADAR ; INDIAN-OCEAN ; SIMULATIONS ; MOISTURE ; BUDGETS ; IOP |
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/34095 |
专题 | 气候变化 |
作者单位 | 1.Morgan State Univ, NASA, Goddard Space Flight Ctr, GESTAR, Baltimore, MD 21239 USA; 2.Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Coral Gables, FL 33124 USA; 3.Cooperat Programs Adv Earth Syst Sci, Boulder, CO USA; 4.Univ Corp Atmospheric Res, Boulder, CO USA; 5.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY USA; 6.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 7.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 8.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 9.Texas A&M Univ Corpus Christi, Dept Phys & Environm Sci, Corpus Christi, TX USA; 10.Univ Maryland, NASA, Goddard Space Flight Ctr, ESSIC, College Pk, MD 20742 USA; 11.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA |
推荐引用方式 GB/T 7714 | Li, Xiaowen,Janiga, Matthew A.,Wang, Shuguang,et al. Evolution of Precipitation Structure During the November DYNAMO MJO Event: Cloud-Resolving Model Intercomparison and Cross Validation Using Radar Observations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(7):3530-3555. |
APA | Li, Xiaowen.,Janiga, Matthew A..,Wang, Shuguang.,Tao, Wei-Kuo.,Rowe, Angela.,...&Zhang, Chidong.(2018).Evolution of Precipitation Structure During the November DYNAMO MJO Event: Cloud-Resolving Model Intercomparison and Cross Validation Using Radar Observations.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(7),3530-3555. |
MLA | Li, Xiaowen,et al."Evolution of Precipitation Structure During the November DYNAMO MJO Event: Cloud-Resolving Model Intercomparison and Cross Validation Using Radar Observations".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.7(2018):3530-3555. |
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