PURPOSE: To obtain a Doppler radar in which a measured three-dimensional wind velocity can be comprehended intuitivey by providing a screen for horizontally displaying the wind velocity with vectors of different color on cylindrical coordinates, and a screen for vertically displaying the wind velocity...
The accuracy of the radial wind velocity measured with a radar wind profiler will depend on turbulent variability and instrumental noise. Radial velocity estimates of a boundary layer wind profiler are compared with those estimated by a Doppler lidar over 2.3 h. The lidar resolution volume was much...
In this chapter, the basic theory of Doppler velocity measurements by Doppler radars is discussed, where principles of Doppler radar, measurable limit of Doppler velocity, and expansion of Doppler velocity measurement range are included. Next, methods of applying Doppler radar, i.e., the volume ...
关键词:多普勒天气雷达;风廓线雷达;水平风;垂直分布 中图分类号: TN959.4 ; TN958 文献标识码: A 文章编号: 16722337 ( 2013 ) 06060506 WindMeasurementCom p arisonBetweenDo pp lerWeatherRadar andWindProfileRadar CAOJunwu 1,2 , HUZhiqun 2 ( 1.ZnhuiSunCreateElectronicsCorporationLtd , Hefei230088 ,...
This paper is a survey of the applicability of microwave Doppler radar techniques to the observation of clear air motion. Emphasis is placed on discussion of the methods required for analyzing wind and turbulent motion by observing the velocity of man-made radar targets used as tracers for the ...
The retrieval of wind vector fields from single Doppler radar data was expressed as a problem of the parameter identification and the variational analysis method and optimal control theory were used to yield the optimal estimation of wind vector fields. The results of the author and his co workers...
But it is more difficult to investigate the three-dimensional (3D) kinematic structure of the severe weather system, because the Doppler velocity is the radial velocity along the weather radar antenna. The dual-Doppler weather radar 3D wind field retrieval algorithm can provide more accurate 3D ...
Assuming the velocity measurement subsystem of the monopulse radar has anequivalent noise bandwidthof 10Hz, afilter bandwidthof 40Hz, the error slope of the loopdiscriminatoris taken as 1.2. If the S/N ratio=12dB, the thermal noise error is about 0.3 m/s. If the S/N is 20 dB, the th...
Dual Doppler radar observations of rainbands A1–A3, whose positions are shown in Figure 11.37. Time–height cross sections centered over station MDW (see Figure 11.36) show (a) wind direction, (b) vertical velocity, and (c) radar reflectivity factor. Dashed contours indicate regions of ...
SINGLE-DOPPLER VELOCITY RETRIEVALS WITH RAPID-SCAN RADAR DATA The past fifteen years has seen the development of a variety of new techniques to estimate the three-dimensional vector wind field from single-Doppler rada... A Shapiro,P Robinson,J Wurman - International Conference on Radar Meteorology...