气候变化领域集成服务门户(CCPortal): Convective Bursts With Gravity Waves in Tropical Cyclones: Case Study With the Himawari-8 Satellite and Idealized Numerical Study

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DOI	10.1029/2019GL086295
	Convective Bursts With Gravity Waves in Tropical Cyclones: Case Study With the Himawari-8 Satellite and Idealized Numerical Study
	Horinouchi T.; Shimada U.; Wada A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	Convective bursts occur frequently in tropical cyclones and help their intensification by diabatic heating, but their quantitative importance has not been established. By using the high-frequency observation of infrared brightness temperature with Himawari-8, a latest-generation geostationary meteorological satellite, convective bursts in Typhoon Lan (2017) were studied. Aided with a series of numerical simulations, it was revealed that the anvil edges of many bursts are associated with finite-amplitude gravity waves consistent with internal bores, creating warm anomalies by subsidence ahead of the edges. As the edges spread, they are thinned, and their propagation speeds are often decreased. In many such instances, gravity waves, now linear, are separated from the edges to propagate away, spreading convective heating. It is proposed that by quantifying these processes with geostationary satellites, diabatic heating by convective bursts can be estimated to diagnose their impacts on tropical-cyclone intensification. ©2020. The Authors.
英文关键词	Geostationary satellites; Gravity waves; Satellites; Storms; Tropics; Convective burst; Convective heating; Finite amplitude; Geostationary meteorological satellites; High frequency HF; Infrared brightness temperature; Propagation speed; Tropical cyclone; Hurricanes; atmospheric convection; geostationary satellite; gravity anomaly; gravity wave; heating; hurricane; simulation; temperature effect; tropical cyclone; typhoon
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170768
作者单位	Faculty of Environmental Earth Science, Hokkaido University, Hokkaido, Japan; Meteorological Research Institute, Tsukuba, Japan
推荐引用方式 GB/T 7714	Horinouchi T.,Shimada U.,Wada A.. Convective Bursts With Gravity Waves in Tropical Cyclones: Case Study With the Himawari-8 Satellite and Idealized Numerical Study[J],2020,47(3).
APA	Horinouchi T.,Shimada U.,&Wada A..(2020).Convective Bursts With Gravity Waves in Tropical Cyclones: Case Study With the Himawari-8 Satellite and Idealized Numerical Study.Geophysical Research Letters,47(3).
MLA	Horinouchi T.,et al."Convective Bursts With Gravity Waves in Tropical Cyclones: Case Study With the Himawari-8 Satellite and Idealized Numerical Study".Geophysical Research Letters 47.3(2020).