ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 39 Issue 3 > 2013,39(3):265-280. DOI:10.7519/j.issn.1000-0526.2013.03.001 Prev Next
Analyses on Disastrous Weather Monitoring Capability of CINRAD and Future Development
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Abstract:
The large scale CINRAD operational network has been built in China. Using quite a lot of data from the network, this paper analyzed the detection capability of the radar network in monitoring the large scale weather systems including cold front, extratropical cyclone, Jianghuai shear line, low level jet stream and typhoon; the mesoscale weather systems such as squall line, gust front, hail and thunderstorm high in severe convective weathers as well as the Meiyu front rainstorm. In addition, the scanning strategy and parameter setting in the CINRAD operation model as well as the features and problems of its technical system were discussed. The progresses are as follows: (1) Improving the existing observation model: Adding clear air mode and RHI vertical scanning 〖JP2〗mode to strengthen the radar detecting capability to clear air echoes〖JP〗 and the refinement of vertical structure; setting high mountain observation mode to enhance the capability to the boundary layer. (2) Improving radar adaption parameter to solve the problem of range folding and velocity ambiguity. (3) Using pulse compression method to develop the detecting capability to weak echoes and keeping spatial resolution of radar data. (4) Making good use of radar networking technology to realize simultaneous observations in time and space on different scale disastrous systems. (5) Using dual polarization technology to improve the accuracy of quantitative precipitation estimation and identify the precipitation phase state. Based on the above five grogresses, a preliminary scheme of radar technology upgrading was proposed. Finally, an outlook for the development of future CINRAD was presented as well.
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