Application of Millimeter-Wave Radar in the Study of Typhoon Outer Rainbands
In order to evaluate the performance of millimeter-wave radar in the case of typhoon,the milli-meter-wave cloud radar data of Shanghai during the four typhoons in 2018 and 2019,and the data of dis-drometer,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 rainfall rate is lower than 5 mm·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 milli-meter-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.
millimeter-wave radartyphooncloud top heightmelting layerrainfall intensity
万方数据
维普
