Re-examining Tropical Cyclone Fullness Using Aircraft Reconnaissance Data

Zhehan CHEN; Qingqing LI

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Re-examining Tropical Cyclone Fullness Using Aircraft Reconnaissance Data

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We use FLIGHT+ aircraft reconnaissance data for tropical cyclones(TCs) in the North Atlantic and Eastern Pacific from 1997 to 2015 to re-examine TC fullness(TCF) characteristics at the flight level.The results show a strong positive correlation between the flight-level TCF and the intensity of TCs,with the flight-level TCF increasing much more rapidly than the near-surface TCF with increasing intensity of the TCs.The tangential wind in small-TCF hurricanes is statistically significantly stronger near the eye center than that in large-TCF hurricanes.Large-TCF hurricanes have a ring-like vorticity structure.No significant correlation is observed between the flight-level TCF and the comparative extent of the vorticityskirt region occupied in the outer core skirt.The proportion of the rapid filamentation zone in the outer core skirt increases with increasing flight-level TCF.The differences in entropy between the radius of the maximum wind and the outer boundary of the outer core skirt also increase with increasing flight-level TCF.

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《大气科学进展：英文版》 |2021年第9期|1596-1607|共12页
作者
Zhehan CHEN; Qingqing LI;
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作者单位

Nanjing University of Information Science and Technology;

Nanjing 210044;

China;

Key Laboratory of Meteorological Disaster of the Ministry of Education;

Nanjing University of Information Science and Technology;

Nanjing 210044;

China;

State Key Laboratory of Severe Weather;

Chinese Academy of Meteorological Sciences;

Beijing 100081;

China;

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原文格式 PDF
正文语种 chi
中图分类造纸工业;
关键词
tropical cyclone; fullness; intensity; structure; aircraft reconnaissance data;

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Re-examining Tropical Cyclone Fullness Using Aircraft Reconnaissance Data

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