ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Causation Analysis of Mesoscale Heavy Rain Triggered by Typhoo n“Longwang”
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
Typhoon“Longwang”, which landed on Fujian Province on October 2, 200 5, caused a severe heavy rain over Fuzhou. Based on satellite pictures and Dopp ler Radar data, diagnostic analysis is conducted. The result indicates that the southwest flow in the southeastern part of typhoon is forced to split into two b ranches by the impact of Taiwan's landform after it entered into Taiwan Strait. The two branches of air flow join together again over Fuzhou. Evidences suggest that the developing mesoscale vortex triggered by favorable surrounding conditio ns is the main reason producing this heavy rainfall. In addition, asymmetry sadd lebacked structure of θe vertical profile, the upper negative and lower positive moist potential vorticity, as well as the highlevel divergence and lowlev el convergence provide dynamical and thermodynamical conditions for occurrence and development of this heavy rain.
Keywords:
Project Supported:
Clc Number:
Mobile website
