ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 33 Issue 10 > 2007,33(10):28-36. DOI:10.7519/j.issn.1000-0526.2007.10.005 Prev Next
Numerical Simulation and Diagnos is of Dry Intrusion in a Dust Storm Process of Henan Province During April 2006
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
A dust weather process occurred in Henan Province during 11-13 April, 2006. By u sing NCEP reanalysis data (horizontal resolution 1°×1°) and the simultaneou s sounding, surface air observational records， a mesoscale numerical simulati on and diagnostic analysis applying dry intrusion theory was made for this proce ss. The results showed that the dry air intrusions obviously play a significant role in this process.The air of high potential vorticity and low humid slip peddown southward along with dense strips of equivalent potential temperatu re, which caused disturbances of potential vorticity and temperature in midlow level of troposphere. These disturbances led to strong cold advection southward and low pressure trough moving eastward and cold front southward, which affecte d together and triggered instable weather. Meanwhile with low level convergence and high level divergence, they caused this dust weather.
Keywords:
Project Supported:
Clc Number:
Mobile website
