DOI: 10.1007/s11069-021-04923-2
论文题名: Influence of water vapor distribution on the simulated track of Typhoon Hato (2017)
作者: Chen J. ; Mai C. ; Zhou M. ; Chen S. ; Li W. ; Fang R. ; Zhao Z.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
语种: 英语
中文关键词: Numerical simulation
; Steering flow
; Track
; Tropical cyclone
; Water vapor distribution
英文摘要: Predicting tropical cyclone (TCs) tracks is a primary concern in TC forecasting. Some TCs appear to move in a direction favorable for their development, beyond the influence of the steering flow. Thus, we hypothesize that TCs move toward regions with high water-vapor content in the lower atmosphere. In this study, four numerical experiments, including a control experiment and three sensitivity experiments, were performed using the Weather Research and Forecasting Model, to analyze the relationship between water vapor distribution and the track of Severe Typhoon Hato (2017). Observations validated the features reproduced in the control experiment. The sensitivity experiments were conducted to explore variations in the TC track under different water vapor environments. Results indicate that the horizontal distribution of water-vapor content exerted a greater impact on the TC track than the steering flow when both factors were significant. Further analysis revealed that the TC’s movement vector was between the direction of the steering flow and the direction toward the peak of vorticity increasing area. The peaks of vorticity increasing area were close to the peaks of water vapor increasing area, which also proved the effect of water vapor distribution on the TC track. These results are expected to improve TC track analysis and forecasting. © 2021, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168948
Appears in Collections: 气候变化与战略
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作者单位: School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, 510275, China; Southern Laboratory of Ocean Science and Engineering, Zhuhai, 519082, China; Guangzhou Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou, 510062, China
Recommended Citation:
Chen J.,Mai C.,Zhou M.,et al. Influence of water vapor distribution on the simulated track of Typhoon Hato (2017)[J]. Natural Hazards,2021-01-01