ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Impact of a Squall Line in Outer Periphery of Tropical Cyclone on Guangzhou Ba iyun Airport
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
Based on NCEP reanalyzed data and Doppler radar products, a squall lin e process in outer periphery of tropical cyclone “KAMMURI” on August 4, 2008 w as analyzed. It showed that the establishment of the lowlevel jet and temperat ure rising caused by sinking and downdraft within subtropical high created the s ufficient water vapor and unstable condition in South China. The squall line weat her burst out under the action of the boundary convergence line which was caused by weak cold air. The appearance of the weak echo channel behind the arc echo s howed that the squall line attacking the airport was in the most powerful stage. Thunderstorm, gust front and downburst were together with the sudden change of the wind direction and the sudden decrease of the ground visibility. Vertical se ction and wind shear radar products were used to analyze the lowlevel wind shear threatening the safety of flights.
Keywords:
Project Supported:
Clc Number:
Mobile website
