This work is distinguished from previous efforts in this area by (1) the use of a single-polarized radar, preventing estimation of the drop size distribution (e.g., with dual polarization) and (2) the fact that the radar and APT sites are not co-located. This paper reports on work whose goal is to determine the feasibility of estimation and, by extension, prediction of one parameter from the other using the Florida ACTS propagation terminal (APT) and the nearby WSR-88D S- band Doppler weather radar facility operated by the National Weather Service. Previous work has shown that Ka- band attenuation due to rainfall and corresponding S- band reflectivity are highly correlated. Using Macromedia Dreamweaver and PHP, developed the integrated monitoring platform for the doppler weather SA- band radar which could monitor the real-time radar system running status and important performance indicators such as radar power,status parameters and others on Web page,and when the status is abnormal it will trigger the audio alarm.Ĭorrelation of S- Band Weather Radar Reflectivity and ACTS Propagation Data in Florida The doppler weather SA- band radar is an important part of modern meteorological observation methods, monitoring the running status of radar and the data transmission is important.This paper introduced the composition of radar system and classification of radar data,analysed the characteristics and laws of the radar when is normal or abnormal. However, although more realistic particle geometry model may provide better representation on raindrop shape, considering the relatively time-consuming and complex scattering simulations for those particles, the oblate spheroid model with appropriate axis ratio variation is suggested for polarization radar applications.ĭevelopment and Application of integrated monitoring platform for the Doppler Weather SA- BAND Radar The comparison indicates that, even for the C-band radar, the effects of raindrop shape and canting angle on scattering properties are relatively minor due to relatively small size parameters. Most simulated radar variables, except copolar correlation coefficient, match closely with radar observations, and the results based on different non-spheroidal models considered in this study show little differences. Note that, when the spatial resolution of the DDA simulation is large enough, the DDA results can be very close to those of the EBCM. the extended boundary condition T-matrix (EBCM) method and discretize dipole approximation (DDA)) and given size distributions, and compared with observations of a C-band dual-polarization radar. To study the effects of scattering simulations on radar applications, the polarization radar parameters are modeled based on the scattering properties calculated by different scattering models (i.e. Besides the widely used spherical and oblate spheroid models, a non-spheroidal model based on realistic raindrop geometries with a flattened base and a smoothly rounded top is also considered. This study numerically investigates the scattering properties of raindrops and considers the capability of numerical models for raindrop scattering simulations. For radar applications, the retrieval of precipitation microphysical characteristics is of great importance, and requires assumed scattering properties of raindrops. The dual-polarization Doppler weather radar plays an important role in precipitation estimation and weather monitoring. Teng, Shiwen Hu, Hanfeng Liu, Chao Hu, Fangchao Wang, Zhenhui Yin, Yan Numerical simulation of raindrop scattering for C-band dual-polarization Doppler weather radar parameters