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DOI | 10.1029/2020GL087637 |
Estimation of the Tangential Winds and Asymmetric Structures in Typhoon Inner Core Region Using Himawari-8 | |
Tsukada, Taiga1; Horinouchi, Takeshi1,2 | |
2020-05-07 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | Observations of the winds in tropical cyclones are still limited. We propose a new method for deriving the tangential winds in tropical cyclones, which employs a spectral analysis of high-frequency cloud imaging by latest-generation geostationary meteorological satellites such as Himawari-8. The method was applied to the visible images of boundary layer clouds in the eye of Typhoon Lan (2017) over an 8.5-hr period. The low-level tangential winds over the central two thirds of the eye in radius were close to a rigid body rotation and increased with time. On its outside was a region with striating clouds rotating at much higher angular velocities, which may have been supergradient. Asymmetric motions were visualized as the deviation from the inner rotation, and the vorticity of some mesovortices were quantified. These asymmetric motions are suggested to transport angular momentum to accelerate the inner rotation. |
英文关键词 | tropical cyclone typhoon tangential winds mesovortices satellite Himawari-8 |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000543387400039 |
WOS关键词 | TROPICAL CYCLONE INTENSITY ; PART I ; KINEMATIC STRUCTURE ; HURRICANE ; EYEWALL ; EYE ; MESOVORTICES ; SATELLITE ; RADAR ; PATTERNS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
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/249164 |
专题 | 气候变化 |
作者单位 | 1.Hokkaido Univ, Grad Sch Environm Sci, Sapporo, Hokkaido, Japan; 2.Hokkaido Univ, Fac Environm Earth Sci, Sapporo, Hokkaido, Japan |
推荐引用方式 GB/T 7714 | Tsukada, Taiga,Horinouchi, Takeshi. Estimation of the Tangential Winds and Asymmetric Structures in Typhoon Inner Core Region Using Himawari-8[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(11). |
APA | Tsukada, Taiga,&Horinouchi, Takeshi.(2020).Estimation of the Tangential Winds and Asymmetric Structures in Typhoon Inner Core Region Using Himawari-8.GEOPHYSICAL RESEARCH LETTERS,47(11). |
MLA | Tsukada, Taiga,et al."Estimation of the Tangential Winds and Asymmetric Structures in Typhoon Inner Core Region Using Himawari-8".GEOPHYSICAL RESEARCH LETTERS 47.11(2020). |
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