DOI: 10.1016/j.atmosres.2020.104931
论文题名: Satellite-observed warm-core structure in relation to tropical cyclone intensity change
作者: Wang X. ; Jiang H. ; Zhang J.A. ; Peng K.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2020
卷: 240 语种: 英语
Scopus关键词: Atmospheric structure
; Atmospheric temperature
; Infrared devices
; Infrared instruments
; Overpasses
; Potential energy
; Storms
; Tropics
; Atmospheric infrared sounders
; Convective available potential energies
; Maximum temperature
; Positive correlations
; Potential temperature
; Rapid intensification
; Temperature profiles
; Tropical cyclone intensity change
; Hurricanes
; AIRS
; correlation
; high temperature
; potential energy
; precipitation intensity
; satellite data
; tropical cyclone
; warming
英文摘要: Using a 13-year dataset of Atmospheric Infrared Sounder (AIRS) retrieved temperature profiles including 5019 AIRS overpasses in 1061 tropical storm through category-2 tropical cyclones (TCs) in global basins during 2002–2014, this study examines the relationship between the warm-core structure and TC intensity change with a focus on rapid intensification (RI). The AIRS TC overpasses are classified into RI, slowly intensifying (SI), neutral (N), and weakening (W) categories. The effect of the warm-core structure upon TC intensification is entangled with that upon TC intensity. It is necessary to exclude the weakening category in order to single out the relationship between TC intensification and warm-core structure from a statistical method. The composite warm-core maximum temperature anomaly is the strongest in RI storms (~7 K), followed by W (~6 K), SI (~5 K) and N (~ 4 K) storms. RI storms have the highest equivalent potential temperature (θe) and CAPE in the eye among all intensity change categories. The warm-core structure of RI storms is asymmetric relative to shear, with the higher temperature anomaly and convective available potential energy (CAPE) located in the down-shear quadrant. When only considering samples with intensification rates ≥0, a significant and positive correlation is found between the warm-core strength and TC intensification rate. The warm-core height is also positively correlated with the TC intensification rate at a high confidence level. The AIRS-derived warm-core temperature anomaly greater than 4 K and weighted warm-core height higher than 450 hPa are the necessary conditions for RI. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158062
Appears in Collections: 气候变化与战略
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作者单位: Joint Centre for Data Assimilation Research and Application, Institute for Climate and Application Research, Nanjing University of Information Science & Technology, Nanjing, China; Department of Earth & Environment, Florida International University, Miami, FL, United States; Cooperative Institute for Marine and Atmospheric Studies, University of Miami, NOAA/AOML/Hurricane Research Division, Miami, FL, United States
Recommended Citation:
Wang X.,Jiang H.,Zhang J.A.,et al. Satellite-observed warm-core structure in relation to tropical cyclone intensity change[J]. Atmospheric Research,2020-01-01,240