ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 50 Issue 5 > 2024,50(5):577-590. DOI:10.7519/j.issn.1000-0526.2023.063001 Prev Next
Application of Millimeter-Wave Radar in the Study of Typhoon Outer Rainbands
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Abstract:
In order to evaluate the performance of millimeter-wave radar in the case of typhoon, the millimeter-wave cloud radar data of Shanghai during the four typhoons in 2018 and 2019, and the data of disdrometer, satellite and S-band weather radar are studied to explore the feasibility of using the millimeter-wave radar to study the outer rainbands of typhoon. It is shown that the millimeter-wave radar has a good detection performance, and has certain application potential for detecting vertical structure of cloud and precipitation. Determination of cloud top height is more accurate when the 〖JP2〗rainfall rate is lower than 5 mm·〖JP〗h-1. A method for bright band determination is proposed, and the results of application are found to be in good agreement with the sounding. Comparison of the retrieval of rainfall intensity by millimeter-wave radar and S-band radar shows feasibility of retrieving rainfall rate profile by taking advantage of the millimeter-wave radar attenuation. In the situation of significant growth of raindrops, it is necessary to revise the retrieval algorithm. This research could provide a reference for millimeter-wave radar detection of typhoon outer rainbands.
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