Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026466 |
Role of convective mixing and evaporative cooling in shallow convection | |
Park, Seung-Bu1,2; Heus, Thijs3; Gentine, Pierre1,2 | |
2017-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Large-eddy simulations of shallow convection are used to evaluate the role of convective mixing and evaporative cooling in the vertical transport of mass, heat, and moisture in nonprecipitating shallow convection. Evaporative cooling is found to increase mass flux and the magnitude of heat and moisture fluxes, comparing twin large-eddy simulations with either suppressed or active evaporative cooling. Nonetheless, subsiding shells transport mass downward even when evaporative cooling is suppressed, emphasizing that evaporative cooling is not the primary cause of existence of subsiding shells and accompanied buoyancy reversal. Instead, vertical convective mixing is found to be the primary reason of buoyancy reversal. Evaporative cooling yet accelerates downdrafts (updrafts) in the shell (cloudy) regions as well as increases the cloud cover in the lower cloud layer. The cloudy regions are more humid, and the liquid water potential temperature is lower compared to the evaporative-cooling-suppressed experiment. The primary effect of evaporative cooling is thus to increase the updraft core anomalies, thus enhancing vertical turbulent fluxes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000404131500019 |
WOS关键词 | LARGE-EDDY SIMULATIONS ; CUMULUS CLOUDS ; SUBSIDING SHELLS ; PART II ; MODEL ; ENTRAINMENT ; BOUNDARY ; LAYERS ; MASS |
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/32187 |
专题 | 气候变化 |
作者单位 | 1.Columbia Univ, Dept Earth & Environm Engn, New York, NY 10027 USA; 2.Columbia Univ, Earth Inst, New York, NY 10027 USA; 3.Cleveland State Univ, Dept Phys, Cleveland, OH 44115 USA |
推荐引用方式 GB/T 7714 | Park, Seung-Bu,Heus, Thijs,Gentine, Pierre. Role of convective mixing and evaporative cooling in shallow convection[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(10). |
APA | Park, Seung-Bu,Heus, Thijs,&Gentine, Pierre.(2017).Role of convective mixing and evaporative cooling in shallow convection.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(10). |
MLA | Park, Seung-Bu,et al."Role of convective mixing and evaporative cooling in shallow convection".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.10(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论