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DOI | 10.1002/2017JD027205 |
Evaluation of an Improved Quasi-stochastic Collection Model Through Precipitation Prediction Over North Central Mongolia | |
Lkhamjav, Jambajamts; Jeon, Ye-Lim; Lee, Hyunho; Baik, Jong-Jin; Seo, Jaemyeong Mango | |
2017-12-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:24 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | One of the key components of bin microphysics schemes is the quasi-stochastic collection equation that describes the collection process of cloud particles. The normal quasi-stochastic model, hereafter the NQS model, assumes that the time step is infinitesimally small, so that a cloud particle can collide with other cloud particle only once within the time step. However, since the time step is finite, a cloud particle can collide with other cloud particle more than one time within the time step. Hence, the improved quasi-stochastic model that realizes this approach, hereafter the IQS model, is physically more reasonable. This study provides the evaluation of the IQS model against the NQS model in precipitation prediction. For this, a precipitation event observed over north central Mongolia on 21 August 2014 is simulated using the Weather Research and Forecasting model with a detailed bin microphysics scheme. The surface precipitation amount is larger in the IQS model than in the NQS model, particularly over the strong precipitation region. The IQS model increases the mass contents of small drops and large drops due to multiple collisions. The increased large drops contribute to the increase in surface precipitation amount. The increased small drops are transported upward, which eventually leads to an increase in snow mass content. Deposition and riming in the IQS model occur more actively, further increasing snow mass content. The increased snow mass content also contributes to the increase in surface precipitation amount through melting. |
英文关键词 | cloud microphysics quasi-stochastic model bin microphysics |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000419950200022 |
WOS关键词 | CLOUD MICROPHYSICS ; PART I ; PARAMETERIZATION ; COALESCENCE ; MM5 ; BIN ; CONDENSATION ; SIMULATION ; GROWTH |
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/32923 |
专题 | 气候变化 |
作者单位 | Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea |
推荐引用方式 GB/T 7714 | Lkhamjav, Jambajamts,Jeon, Ye-Lim,Lee, Hyunho,et al. Evaluation of an Improved Quasi-stochastic Collection Model Through Precipitation Prediction Over North Central Mongolia[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(24). |
APA | Lkhamjav, Jambajamts,Jeon, Ye-Lim,Lee, Hyunho,Baik, Jong-Jin,&Seo, Jaemyeong Mango.(2017).Evaluation of an Improved Quasi-stochastic Collection Model Through Precipitation Prediction Over North Central Mongolia.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(24). |
MLA | Lkhamjav, Jambajamts,et al."Evaluation of an Improved Quasi-stochastic Collection Model Through Precipitation Prediction Over North Central Mongolia".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.24(2017). |
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