Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-17-0092.1 |
Isentropic Analysis on the Intensification of Hurricane Edouard (2014) | |
Fang, Juan1,2; Pauluis, Olivier3; Zhang, Fuqing4 | |
2017-12-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | An isentropic analysis technique is adopted in this study to investigate the intensification of Hurricane Edouard (2014) predicted by an experimental real-time convection-permitting hurricane analysis and forecast system. This technique separates the vertical mass transport in terms of equivalent potential temperature theta(e) for the rising air parcels at high entropy from the subsiding air at low entropy. It is found that as Edouard intensifies the vertical circulation becomes wider via the expansion of upward (downward) mass flux to higher (lower) theta(e). In the early developing stages, the asymmetric convection dominates the vertical circulation and leads to a remarkable upward mass flux maximum center in the upper troposphere. When Edouard becomes intense, the axisymmetric convection becomes important to the upper-level vertical mass transport while the asymmetric convection still dominates the low-level vertical mass transport. Development of the warm core in the eye leads to double maxima along the theta(e) axis for both the isentropic-mean relative humidity and tangential velocity. The isentropic-mean properties such as the mid-to upper-level relative humidity, vertical velocity, and radial outflow decrease considerably while the mid-to upper-level vorticity enhances on the high-theta(e) side before the onset of rapid intensification. The isentropic analysis also reveals that as Edouard intensifies the eye characterized by warm and dry core first forms in the low to middle troposphere and then gradually expands upward. The abovementioned results indicate that the isentropic framework may have the advantages of binning common variables with theta(e) that could reflect the changes of the tropical cyclone structure in the inner-core region without a prior specification of the location of the storm center. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427864800007 |
WOS关键词 | SEA INTERACTION THEORY ; VERTICAL WIND SHEAR ; TROPICAL CYCLONE ; NUMERICAL-MODEL ; PART I ; INTENSITY ; CONVECTION ; EVOLUTION ; DYNAMICS ; PREDICTABILITY |
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/29785 |
专题 | 地球科学 |
作者单位 | 1.Nanjing Univ, Minist Educ, Key Lab Mesoscale Severe Weather, Nanjing, Jiangsu, Peoples R China; 2.Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China; 3.NYU, Courant Inst Math Sci, New York, NY USA; 4.Penn State Univ, Dept Meteorol, 503 Walker Bldg, University Pk, PA 16802 USA |
推荐引用方式 GB/T 7714 | Fang, Juan,Pauluis, Olivier,Zhang, Fuqing. Isentropic Analysis on the Intensification of Hurricane Edouard (2014)[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(12). |
APA | Fang, Juan,Pauluis, Olivier,&Zhang, Fuqing.(2017).Isentropic Analysis on the Intensification of Hurricane Edouard (2014).JOURNAL OF THE ATMOSPHERIC SCIENCES,74(12). |
MLA | Fang, Juan,et al."Isentropic Analysis on the Intensification of Hurricane Edouard (2014)".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.12(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