Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-17-0020.1 |
Impact of the Diurnal Radiation Cycle on Secondary Eyewall Formation | |
Tang, Xiaodong1,2; Tan, Zhe-Min1,2; Fang, Juan1,2; Sun, Y. Qiang3,4; Zhang, Fuqing3,4 | |
2017-09-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The sensitivity of the secondary eyewall formation (SEF) of Hurricane Edouard (2014) to the diurnal solar insolation cycle is examined with convection-permitting simulations. A control run with a real diurnal radiation cycle and a sensitivity experiment without solar insolation are conducted. In the control run, there is an area of relatively weak convection between the outer rainbands and the primary eyewall, that is, a moat region. This area is highly sensitive to solar shortwave radiative heating, mostly in the mid-to upper levels in the daytime, which leads to a net stabilization effect and suppresses convective development. Moreover, the heated surface air weakens the wind-induced surface heat exchange (WISHE) feedback between the surface fluxes (that promote convection) and convective heating (that feeds into the secondary circulation and then the tangential wind). Consequently, a typical SEF with a clear moat follows. In the sensitivity experiment, in contrast, net radiative cooling leads to persistent active inner rainbands between the primary eyewall and outer rainbands, and these, along with the absence of the rapid filamentation zone, are detrimental to moat formation and thus to SEF. Sawyer-Eliassen diagnoses further suggest that the radiation-induced difference in diabatic heating is more important than the vortex wind structure for moat formation and SEF. These results suggest that the SEF is highly sensitive to solar insolation. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409847100020 |
WOS关键词 | OUTER SPIRAL RAINBANDS ; VORTEX ROSSBY-WAVES ; HURRICANE INTENSITY ; TROPICAL CYCLONES ; WIND-FIELD ; DYNAMICS ; ROLES ; PREDICTABILITY ; VORTICITY ; SHEAR |
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/29719 |
专题 | 地球科学 |
作者单位 | 1.Nanjing Univ, Key Lab Mesoscale Severe Weather, Minist Educ, Nanjing, Jiangsu, Peoples R China; 2.Nanjing Univ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China; 3.Penn State Univ, Dept Meteorol, 503 Walker Bldg, University Pk, PA 16802 USA; 4.Penn State Univ, Ctr Adv Data Assimilat & Predictabil Techn, University Pk, PA 16802 USA |
推荐引用方式 GB/T 7714 | Tang, Xiaodong,Tan, Zhe-Min,Fang, Juan,et al. Impact of the Diurnal Radiation Cycle on Secondary Eyewall Formation[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(9). |
APA | Tang, Xiaodong,Tan, Zhe-Min,Fang, Juan,Sun, Y. Qiang,&Zhang, Fuqing.(2017).Impact of the Diurnal Radiation Cycle on Secondary Eyewall Formation.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(9). |
MLA | Tang, Xiaodong,et al."Impact of the Diurnal Radiation Cycle on Secondary Eyewall Formation".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.9(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