Impact of vertical wind shear in modulating tropical cyclones eye and rainfall structure

Neerja Sharma () and Atul Kumar Varma ()
Additional contact information
Neerja Sharma: Indian Space Research Organisation
Atul Kumar Varma: Indian Space Research Organisation

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2022, vol. 112, issue 3, No 10, 2083-2100

Abstract: Abstract Tropical cyclones (TCs) are primarily characterised by strong winds and torrential rain. Often, strong environmental vertical wind shear (EVWS) displaces the location of TC’s eye at the cloud level from that near the surface and modulates its rain structure significantly. Thus, knowledge of EVWS and its role in displacing TC’s eye at vertical level is important to resolve rain structure of TC. Present study examines the role of EVWS in displacing TC’s eye location and associated rainfall distribution by analysing 27 TCs over global ocean basins in the Northern Hemisphere from October 2016 to December 2019. Study utilizes Indian Space Research Organisation’s Scatsat-1 Ku-band (13.53 GHz) scatterometer derived global ocean surface vector winds, National Oceanic and Atmospheric Administration provided global merged Infra-Red imagery product, U and V components of winds from Global Forecast System, and rainfall from Integrated Multi-satellitE Retrieval for Global Precipitation Measurement mission. High intensified TCs that developed in strong EVWS (> 10 ms−1) show eye dislocation of > 30 km. However, this locational displacement is negligible for severe TCs strengthen in weak EVWS (≤ 10 ms−1). Rain structure of TC is controlled by the direction of shifted eye, particularly when a severe TC exhibits significant shift of > 30 km. On the other hand, rainfall distribution is nearly uniform around the TC’s eye that has a marginal dislocation of

Keywords: Tropical cyclones; Wind vectors; Vertical wind shear; Rainfall (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://link.springer.com/10.1007/s11069-022-05257-3 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:112:y:2022:i:3:d:10.1007_s11069-022-05257-3

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1007/s11069-022-05257-3

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().