Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027410 |
A Top-Down Pathway to Secondary Eyewall Formation in Simulated Tropical Cyclones | |
Tyner, Bryce1,2; Zhu, Ping1,2; Zhang, Jun A.3,4; Gopalakrishnan, Sundararaman4; Marks, Frank, Jr.4; Tallapragada, Vijay5 | |
2018-01-16 | |
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:1页码:174-197 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Idealized and real-case simulations conducted using the Hurricane Weather Research and Forecasting (HWRF) model demonstrate a "top-down" pathway to secondary eyewall formation (SEF) for tropical cyclones (TCs). For the real-case simulations of Hurricane Rita (2005) and Hurricane Edouard (2014), a comparison to observations reveals the timing and overall characteristics of the simulated SEF appear realistic. An important control of the top-down pathway to SEF is the amount and radial-height distribution of hydrometeors at outer radii. Examination into the simulated hydrometeor particle fall speed distribution reveals that the HWRF operational microphysics scheme is not producing the lightest hydrometeors, which are likely present in observed TCs and are most conducive to being advected from the primary eyewall to the outer rainband region of the TC. Triggering of SEF begins with the fallout of hydrometeors at the outer radii from the TC primary eyewall, where penetrative downdrafts resulting from evaporative cooling of precipitation promote the development of local convection. As the convection-induced radial convergence that is initially located in the midtroposphere extends downward into the boundary layer, it results in the eruption of high entropy air out of the boundary layer. This leads to the rapid development of rainband convection and subsequent SEF via a positive feedback among precipitation, convection, and boundary layer processes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423433500011 |
WOS关键词 | HURRICANE RITA ; NUMERICAL SIMULATIONS ; REPLACEMENT CYCLES ; WIND-FIELD ; INTENSITY ; RAINBANDS ; DYNAMICS ; EVOLUTION ; IMPACT ; SPEEDS |
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/32982 |
专题 | 气候变化 |
作者单位 | 1.Int Hurricane Res Ctr, Miami, FL USA; 2.Florida Int Univ, Dept Earth & Environm, Miami, FL 33199 USA; 3.Univ Miami, Cooperat Inst Marine & Atmospher Studies, Miami, FL USA; 4.NOAA, Atlantic Oceanog & Meteorol Lab, Hurricane Res Div, Miami, FL 33149 USA; 5.NOAA, Natl Ctr Environm Predict, Environm Modeling Ctr, Washington, DC USA |
推荐引用方式 GB/T 7714 | Tyner, Bryce,Zhu, Ping,Zhang, Jun A.,et al. A Top-Down Pathway to Secondary Eyewall Formation in Simulated Tropical Cyclones[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(1):174-197. |
APA | Tyner, Bryce,Zhu, Ping,Zhang, Jun A.,Gopalakrishnan, Sundararaman,Marks, Frank, Jr.,&Tallapragada, Vijay.(2018).A Top-Down Pathway to Secondary Eyewall Formation in Simulated Tropical Cyclones.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(1),174-197. |
MLA | Tyner, Bryce,et al."A Top-Down Pathway to Secondary Eyewall Formation in Simulated Tropical Cyclones".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.1(2018):174-197. |
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