ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 37 Issue 10 > 2011,37(10):1216-1227. DOI:10.7519/j.issn.1000-0526.2011.10.004 Prev Next
Analysis on Doppler Radar Statistical Features and Distinguishing Methods of Mesoscale and Microscale Disastrous Weather in Southern Yunnan
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
Using the CIND3830CC data of CINRAD, the radiosonde and the surface meteorological data, we analyzed the Doppler radar echo features of the mesoscale and microscale strong convective weather system in Pu’er and Xishuangbanna during 2004 to 2009. In addition, we summarized the identification methods and the forecast targets about hail and gale, and shorttime strong rainfall. It may be concluded that the initial echo center intensity of hail cloud is about 40 dBz, and the height of hail cloud is about 5 km, approaching to 0℃ isotherm. The radial velocity of hail cloud ≥10 m·s-1, the moving speed ≥30 km·h-1, the echo center intensity is about 55 to 69 dBz and convergent features are obvious. The hail cloud intensity of the radar echo top is about 45 dBz. The height of 97% of the hail cloud is higher than 7.5 km, and that of 92% of the hail cloud is colder than -20℃. The echo of gale can be divided into 4 types. The radial velocity of 96% of the gale echo is more than 10 m·s-1, the convergent features of 50% of the gale echo are obvious. The moving speed about 85% of gale is more than 30 km·h-1 and the echo center intensity of gale is 30 to 55 dBz. The echo convergent features are obvious.The radial velocity of 79% of echo is less than 10 m·s-1. The moving speed of 85% of echoes is estimated to be less than 30 km·h-1. Then its intensity is 40 to 45 dBz and height is less than 4.5 km.The moving speed of echo is less than 30 km·h-1. And then we got the reference material in the shortterm weather forecast.
Keywords:
Project Supported:
Clc Number:
Mobile website
