Tracking Jianghuai Cyclones in China and Their Climate Characteristics
A Jianghuai cyclone is an extratropical cyclone, which influences the middle and lower reaches of the Yangtze River and Huai River basins in China. According to the definition of Jianghuai cyclones, statistics of their climate characteristics from 1979 to 2010 are obtained by an objective detection...
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doaj-e3fd8ad45b2c4b72a3f8b00d0e15962c2020-11-25T00:20:32ZengMDPI AGAtmosphere2073-44332018-08-019934110.3390/atmos9090341atmos9090341Tracking Jianghuai Cyclones in China and Their Climate CharacteristicsLan Xia0Yue Zhou1Department of Atmospheric Sciences, Yunnan University, Chenggong University Town, Kunming 650500, ChinaKey Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, ChinaA Jianghuai cyclone is an extratropical cyclone, which influences the middle and lower reaches of the Yangtze River and Huai River basins in China. According to the definition of Jianghuai cyclones, statistics of their climate characteristics from 1979 to 2010 are obtained by an objective detection and tracking algorithm using ERA-Interim reanalysis data. The results show that the frequency of Jianghuai cyclones has a strong year-to-year variability but no obvious trend. Jianghuai cyclones are most frequent in May but fewest in December. As the cold air is active in spring, which interacts with the warm air from the southwest of the subtropical high at the Yangtze-Huai River region, it makes Jianghuai cyclones occur more frequently in this season. The main origins of Jianghuai cyclones are located in the Poyang Lake region, Dongting Lake region, and Dabie Mountain area. The maximum deepening rate of 0–2 hPa/6h is featured in 66.4% of Jianghuai cyclones. Over 40% of Jianghuai cyclones have a mean deepening rate of 0–1 hPa/6h. The lifetime of Jianghuai cyclones is short, mainly lasting for one to two days. In addition, background characteristics are compared between the formation, climax, and decaying periods of Jianghuai cyclones.http://www.mdpi.com/2073-4433/9/9/341Jianghuai cyclonesobjective detection and tracking algorithmclimatic characteristics |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lan Xia Yue Zhou |
spellingShingle |
Lan Xia Yue Zhou Tracking Jianghuai Cyclones in China and Their Climate Characteristics Atmosphere Jianghuai cyclones objective detection and tracking algorithm climatic characteristics |
author_facet |
Lan Xia Yue Zhou |
author_sort |
Lan Xia |
title |
Tracking Jianghuai Cyclones in China and Their Climate Characteristics |
title_short |
Tracking Jianghuai Cyclones in China and Their Climate Characteristics |
title_full |
Tracking Jianghuai Cyclones in China and Their Climate Characteristics |
title_fullStr |
Tracking Jianghuai Cyclones in China and Their Climate Characteristics |
title_full_unstemmed |
Tracking Jianghuai Cyclones in China and Their Climate Characteristics |
title_sort |
tracking jianghuai cyclones in china and their climate characteristics |
publisher |
MDPI AG |
series |
Atmosphere |
issn |
2073-4433 |
publishDate |
2018-08-01 |
description |
A Jianghuai cyclone is an extratropical cyclone, which influences the middle and lower reaches of the Yangtze River and Huai River basins in China. According to the definition of Jianghuai cyclones, statistics of their climate characteristics from 1979 to 2010 are obtained by an objective detection and tracking algorithm using ERA-Interim reanalysis data. The results show that the frequency of Jianghuai cyclones has a strong year-to-year variability but no obvious trend. Jianghuai cyclones are most frequent in May but fewest in December. As the cold air is active in spring, which interacts with the warm air from the southwest of the subtropical high at the Yangtze-Huai River region, it makes Jianghuai cyclones occur more frequently in this season. The main origins of Jianghuai cyclones are located in the Poyang Lake region, Dongting Lake region, and Dabie Mountain area. The maximum deepening rate of 0–2 hPa/6h is featured in 66.4% of Jianghuai cyclones. Over 40% of Jianghuai cyclones have a mean deepening rate of 0–1 hPa/6h. The lifetime of Jianghuai cyclones is short, mainly lasting for one to two days. In addition, background characteristics are compared between the formation, climax, and decaying periods of Jianghuai cyclones. |
topic |
Jianghuai cyclones objective detection and tracking algorithm climatic characteristics |
url |
http://www.mdpi.com/2073-4433/9/9/341 |
work_keys_str_mv |
AT lanxia trackingjianghuaicyclonesinchinaandtheirclimatecharacteristics AT yuezhou trackingjianghuaicyclonesinchinaandtheirclimatecharacteristics |
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1725366854971555840 |