滴谱 meaning in Chinese
drop-size distribution
Examples
- Heavy rainfall occurred in the warm area , and maximum rainfall lay in the windward slope where the width of raindrop size distribution was b roadened and sometimes it was bimodal spectrum . the shape of rain band in cold area was zonal , and the area of rain band was small
暖区有明显的强降水中心，雨强极大值出现在山区迎风坡，降水雨滴谱谱宽较大，有时滴谱呈双峰型分布；冷区降水区常呈带状分布，雨区范围大，雨滴谱较窄，雨滴谱为单峰型。 - There is a vaporizing layer below 0 layer and it is far thick , which may be one of the important reasons of small precipitation on ground ; in the paper the cloud and the rain drop size distribution in warm layer of stratiform cloud are calculated and analyzed . it is found that n ( d ) = n0dnexp ( - a d ) can express the size distributions of little cloud drops , big cloud drops and rain drops . the observational and calculated results are well matched
在零度层以下蒸发层的存在，且比较深厚，应是导致地面雨强较小的重要因素之一；本文对暖层的云滴谱和雨滴谱进行了计算，对小云滴、大云滴和雨滴分布可以用同一种形式的分布密度函数多阶函数n ( d ) = n _ 0d ~ nexp ( - d )来表示。 - The influence of the cloud droplet spectrum character and the spectrum growth and change is considered , which does not use a cut - off value for conversion from cloud water into rain water process . in the continuous coalescence equation , the particles fall velocity difference is not moved out from the integral , but is integrated in the equation as the function of diameter d to avoid the error of using particles average fall velocity . in the new scheme , generation rate of graupel due to the collection of snow by graupel and the collection of cloud ice by graupel are included
云中凝结核ccn的数浓度采用超几何函数表示；云水向雨水的自动转换过程采用grabowski ( 1999 )的公式，考虑了云滴谱的特征和发展变化对该过程的影响，而不是采用原方案给定阈值的方法描述该过程；对连续碰并方程不再将粒子落速差作为常量提出积分号外，而是直接作为粒子直径函数在积分号内求解，这样处理可以回避使用粒子群的平均落速带来的误差；增加了霰和雪、霰和冰晶的碰并微物理过程。 - According to statistics parameters of the typical clouds over xi ' an region and cloud data obtained from the global distribution of cloud cover under the auspices of world meteorological organization , for xi ' an region typical cloud , the parameters of khragian - mazin cloud drop size distribution are obtained . based on xi ' an cloud water content profile , on earth - space paths , attenuation due to cloud are calculated by means of the k - m distribution . it is shown that the attenuation induced by cloud are taken into account at ka - at elevation angle smaller than 30 and v - band paths
第三，根据西安地区气象观测数据，讨论了西安典型云的宏观和微观物理特性；根据西安典型云的观测结果和世界气象组织提供的数据，得到西安典型云的k - m云滴谱参数；并根据西安地区云的液水含量，计算了地一空路径上云的衰减，结果表明，在v波段和仰角小于30度的ka波段路径，云的衰减需加以考虑。