Proceedings of the Fourth Symposium on Disaster Risk Analysis and Management in Chinese Littoral Regions (DRAMCLR 2019)

Overview and Genesis Analysis of the Intense Tropical Cyclone IDAI in the South-West Indian Ocean

Authors
Saisai Liu, Dandan Yu, Yija Hu, Xudong Peng
Corresponding Author
Saisai Liu
Available Online November 2019.
DOI
https://doi.org/10.2991/dramclr-19.2019.5How to use a DOI?
Keywords
South-West Indian Ocean, Tropical cyclone, Genesis analysis
Abstract
In this paper, the NCEP reanalysis data and the sea surface temperature data are used to diagnose the development process of the intense tropical cyclone “IDAI” generated in the South- West Indian Ocean. The results show that the presence of the high pressure ridge in the northeast and the weak high pressure in the south makes “IDAI” moving slowly or even stagnantly. According to the intensity, the development of “IDAI” can be divided into three processes: the rapid strengthening process, the weakening maintenance process and the secondary strengthening process. Then it eventually developed into an intense tropical cyclone. The high sea temperature, the relatively small vertical wind shear and the favorable high-level divergence conditions are benifit environmental conditions for its rapid strengthening; during its development process, the external water vapor transport is weak, the water vapor and heat mainly come from the ocean; the eye wall replacement process causes the second strengthening of its intensity. Finally it landed in Mozambique with an intensity of intense tropical cyclone.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Cite this article

TY  - CONF
AU  - Saisai Liu
AU  - Dandan Yu
AU  - Yija Hu
AU  - Xudong Peng
PY  - 2019/11
DA  - 2019/11
TI  - Overview and Genesis Analysis of the Intense Tropical Cyclone IDAI in the South-West Indian Ocean
BT  - Proceedings of the Fourth Symposium on Disaster Risk Analysis and Management in Chinese Littoral Regions (DRAMCLR 2019)
PB  - Atlantis Press
SP  - 219
EP  - 224
SN  - 1951-6851
UR  - https://doi.org/10.2991/dramclr-19.2019.5
DO  - https://doi.org/10.2991/dramclr-19.2019.5
ID  - Liu2019/11
ER  -