摘要
本文根据Rutkowski,W和Fleisher(1955)提出的R计原理,从常规天气雷达的涨落回波中提取了多普勒速度谱宽σ_v并在微机上获得谱宽的伪彩色PPI显示。在一定条件下,谱宽即为湍流速度。多次测量的结果表明,发射机频率不稳定造成的R计测值的误差可以忽略不计。
On the R-meter principle proposed by W. Rutkowski and Flei-sher (1955), the Doppler velocity spectrum parameter σ. is extract-ed from the fluctuating echoes observed by a conventional weatherradar (radar 713) and displayed in pseudo-color on a microcomputer.Under certain conditions, the spectrum width σ, is just the turbulentvelocity. Observations show that the error in R meter measurementscaused by unsteady radar frequency is almost negligible.
出处
《南京气象学院学报》
CSCD
1991年第4期575-580,共6页
Journal of Nanjing Institute of Meteorology
