ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 33 Issue 10 > 2007,33(10):52-60. DOI:10.7519/j.issn.1000-0526.2007.10.008 Prev Next
Analysis of a Heavy Rainstorm Process Forecasting in Haihe River Basin
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
A typical rainstorm process in Haihe River Basin during 22nd24th July 2005 is synthetically studied with numerical model, conventional observations, multiple physical indexes, satellite data and radar data etc. To be summarized, the findings from the analysis are as follows: 1) the whole process was codeve loped by an upper trough, the warmmoist airflow on the edge of subtropical hig h and the lowpressure cloud system triggered by Typhoon Haitang during its col lapse phase. 2) The whole process is caused by some intensely developing meso and microscale convective cloud clusters which are triggered in the warm area by the updraft flow in front of cold airmass under some favor conditions such as high temperature and moisture and stratified instability. 3) The numerical mo deling forecasting has some indicative sense on the time and location of the hea vy rainfall and the cold advection in the middle of troposphere that intruded in toHaihe River Basin. Compared to the model developed by Germany, Japanese model a nd T213 model have shown predominance on the location forecasting of the heavy r ainfall in Haihe River Basin. However, the quantitative precipitation forecastin g from German model is most close to the observations. As a whole, these three m odels all have poor accuracy in the location of the west edge of the subtropical high. This fact is thought to be one of the reasons causing the forecasting err or in the temporal and spatial distribution of the heavy rainfall in Haihe River Basin.
Keywords:
Project Supported:
Clc Number:
Mobile website
