Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6315 |
On the relationship between intensity changes and rainfall distribution in tropical cyclones over the North Indian Ocean | |
Ankur, Kumar1,2; Busireddy, Nanda Kishore Reddy1,2,3; Osuri, Krishna K.3; Niyogi, Dev1,2 | |
2019-10-08 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | USA; India |
英文摘要 | Using Tropical Rainfall Measuring Mission rain estimates the relationship between rainfall and intensity changes in tropical cyclones (TCs) over the North Indian Ocean (NIO) based on 71 TCs during 1997-2017 is investigated. The axisymmetric analyses revealed that climatologically the Bay of Bengal (BoB) TCs produce extremely heavy rainfall (similar to 9-10 mm.hr(-1)) and Arabian Sea TCs produce very heavy rainfall (similar to 7-8 mm.hr(-1)) in the storm inner core region (0-100 km). The inner-core region receives three times higher rainfall than the outer region (100-300 km). The left-forward sector experiences the maximum rainfall for any TC intensity over the NIO basin. A significant increase (decrease) in the rain rate is seen during normal to rapid intensification (weakening) phase. A notable decrease in rainfall of similar to 4.3 mm.hr(-1) is observed for the rapidly weakening TCs. Slow-moving TCs are generally stronger and produce heavy rainfall (2-4 mm.hr(-1)) up to similar to 300 km storm radius. As the translation speed increases, rainfall gradually shifts from rear to the forward sector of the TC. The asymmetry (wavenumber-1) in TC rainfall structures revealed that rainfall maximum is located in the left-forward sector for almost all intensity stages. The amplitude of wave number-1 asymmetry in TC rainfall shows cyclonic shift as the TC intensity increases and is particularly prevalent in the BoB region. These analyses would be helpful as a baseline for evaluating the performance of numerical models and to identify the vulnerable areas for TC heavy rainfall. |
英文关键词 | North Indian Ocean tropical cyclones TC intensity changes rainfall structures |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000489443200001 |
WOS关键词 | VERTICAL WIND SHEAR ; PRECIPITATION CHARACTERISTICS ; LANDFALL ; BAY ; ASYMMETRIES ; PREDICTION ; MOVEMENT ; PACIFIC ; IMPACT ; CHINA |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/187598 |
专题 | 气候变化 |
作者单位 | 1.Purdue Univ, Dept Agron, W Lafayette, IN 47907 USA; 2.Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA; 3.Natl Inst Technol Rourkela, Dept Earth & Atmospher Sci, Rourkela 769008, Odisha, India |
推荐引用方式 GB/T 7714 | Ankur, Kumar,Busireddy, Nanda Kishore Reddy,Osuri, Krishna K.,et al. On the relationship between intensity changes and rainfall distribution in tropical cyclones over the North Indian Ocean[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019. |
APA | Ankur, Kumar,Busireddy, Nanda Kishore Reddy,Osuri, Krishna K.,&Niyogi, Dev.(2019).On the relationship between intensity changes and rainfall distribution in tropical cyclones over the North Indian Ocean.INTERNATIONAL JOURNAL OF CLIMATOLOGY. |
MLA | Ankur, Kumar,et al."On the relationship between intensity changes and rainfall distribution in tropical cyclones over the North Indian Ocean".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2019). |
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