气候变化领域集成服务门户(CCPortal): Modulation of Clouds and Rainfall by Tropical Cyclone's Cold Wakes

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DOI	10.1029/2020GL088873
	Modulation of Clouds and Rainfall by Tropical Cyclone's Cold Wakes
	Ma Z.; Fei J.; Lin Y.; Huang X.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:17
英文摘要	Tropical cyclones can pump heat into the ocean by producing a long-lasting subsurface warm anomaly while leaving a relatively short-term surface cold anomaly via mixing the upper ocean. Although the heat pumping has been found to be crucial in driving oceanic heat transport and thereby regulating climate changes, the contribution of surface cold anomaly to the atmosphere remains unclear. Here we show that local clouds and rainfall are effectively modulated by cold wakes left behind by tropical cyclones using a combination of satellite observations. On average, the negative surface enthalpy flux anomaly associated with the cold wake results in a reduction of rainfall by ~16.6 ± 0.6% (standard error) and a decline of cloud fraction by ~6.7 ± 0.4% over the wake region. Clouds and rainfall tend to be more suppressed for slower moving or stronger TCs. With more intense or slower moving TCs in a warming climate, such a modulation could be amplified accordingly. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Climate change; Hurricanes; Modulation; Storms; Tropics; Wakes; Cloud fraction; Heat pumping; Heat transport; Satellite observations; Standard errors; Surface enthalpies; Tropical cyclone; Warming climate; Rain; anomaly; enthalpy; heat transfer; pumping; rainfall; satellite data; tropical cyclone; upper ocean; wake; warming
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/169809
作者单位	College of Meteorology and Oceanography, National University of Defense Technology, Nanjing, China; Department of Earth System Science, Tsinghua University, Beijing, China
推荐引用方式 GB/T 7714	Ma Z.,Fei J.,Lin Y.,et al. Modulation of Clouds and Rainfall by Tropical Cyclone's Cold Wakes[J],2020,47(17).
APA	Ma Z.,Fei J.,Lin Y.,&Huang X..(2020).Modulation of Clouds and Rainfall by Tropical Cyclone's Cold Wakes.Geophysical Research Letters,47(17).
MLA	Ma Z.,et al."Modulation of Clouds and Rainfall by Tropical Cyclone's Cold Wakes".Geophysical Research Letters 47.17(2020).