English translation for "radar reflectivity"
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- 雷达反射率
雷达目标反射性
雷达射系数
Related Translations:
- Example Sentences:
| 1. | Here precipitation is shown in 6 levels of rainfall intensity or radar reflectivity on a 6 - degree elevation scan
雨量是以6度仰角扫描所得的6层降雨强度雷达反射率来显示。 | | 2. | Here precipitation is shown in 6 levels of rainfall intensity ( or radar reflectivity ) on a 6 - degree elevation scan
雨量是以6度仰角扫描所得的6层降雨强度(雷达反射率)来显示。 | | 3. | Based on the fog drop size distribution model of radiation and advection fog , the backscattering characteristics of fog have been investigated and the empirical relations of the radar reflectivity factor and water content or visibility are obtained
对雾的雷达后向散射特性进行了分析和研究，得到了平流雾和辐射雾的雷达反射因子与含水量和能见度的经验关系。 | | 4. | In the end of this paper , we introduce that in the context of weather radar observations the enhancement of thin - line features in meteorological radar reflectivity images is addressed using a wavelet - based analysis . passing the thin line highlighted image into forecast system to complete the feature identification , we can get basis element for thunderstorm forecasting
本文最后介绍了采用小波变换的方法对滨州雷达资料的反射率图像进行处理，得到特征线增强后的图像，将其输入自动预报系统实现特征识别，可为雷暴预报等提供某些初步识别判据。 | | 5. | As for a space - based cloud radar , the change of the radar reflectivity n and the change of attenuation rate along with the cloud liquid water content have been compared between 37 ghz and 94ghz . the transmittance t of single level cloud for different heights and liquid water content has also been calculated at 2 frequencies . by defining a = n tr , which combines both effects of radar reflectivity and transmittance , we have examined the values of a at 37ghz and 94ghz for high , middle and low cloud liquid water contents
对空间测云雷达，讨论了37ghz和94ghz这两个频率的雷达反射率和衰减系数随云液水含量的变化；计算了不同高度的单层云在不同频率，不同含水量情况下的云层透过率_ ；定义a = _来综合考虑雷达反射率和透过率对空间测云雷达回波的影响，分析比较了云含水量高、中、低时37ghz和94ghz的a值大小。 | | 6. | Based on rain drop size distribution ( dsd ) data measured in qingdao , guangzhou and xinxiang , the radar reflectivity factor z for spherical rain drops , the radar reflectivity factor zh and differential reflectivity zdr for oblate ellipsoid rain drops have been calculated . the relation of reflectivity and rainfall rate for conventional meteorological radar and the relation of reflectivity , differential reflectivity and rainfall rate for multiparameter radar are regressed , the performance difference of two kinds of radar for measuring rainfall and difference for measuring rainfall in different regions are also discussed
基于我国青岛、广州和新乡地区雨滴尺寸分布数据，计算了球形雨滴雷达反射因子，椭球形雨滴雷达水平极化反射因子和差分反射率，回归给出了这些地区的常规气象雷达反射因子与降雨率的经验关系和多参数雷达水下极化雷达反射因子、差分反射率和降雨率关系，并对其测雨精度和地区差异进行了比较。 | | 7. | Main conclusions drawn from the analyses of calculating results are as follows : ( 1 ) the microwave absorption of atmosphere gas have obvious attenuation at the wavelengths for cloud detection , thereinto , the water attenuation effect changes greatly , so the 94ghz cloud detecting radar should have water vapor attenuation correction scheme . ( 2 ) when 37ghz and 94ghz radars detect clouds , the difference between the atmosphere and cloud attenuation and the large variety of radar reflectivity conduce the intension of the radar backscatter signals change . ( 3 ) for the thin cloud layer and low water content of cloud , 37 - ghz radar backscatter signals are not as good as 94 - ghz radar , that is to say that the 94ghz radar has better capability in thin clouds detection
本工作得出如下结论： ( 1 )大气气体的微波吸收在测云波段产生明显的衰减，其中水汽衰减效应变化很大；即将上天的空间94ghz测云雷达必须有水汽衰减订正方案； ( 2 ) 37ghz和94ghz雷达测云，由于大气和云衰减不同和雷达反射率的很大差异，导致雷达回波信号强弱不同； ( 3 )对云层较薄、含水量较少的云，在不计雷达参数的情况下， 37ghz雷达回波信号不如94ghz测云雷达，也就是说94ghz对薄云有更强的探测能力；对云层较厚、含水量大的云，由于强衰减的作用， 94ghz雷达回波信号小于37ghz雷达； ( 4 )从大气衰减的不利因素方面考虑，空间94ghz雷达测高层薄云的效果最好；测低层薄云时需要考虑气体衰减订正；因浓厚云的强衰减作用，探测其中下部的能力大大减弱，不仅要进行衰减订正，而且要借助其他信息来反演整个云层的含水量垂直分布； （ 5 ）为了获得从极薄到极浓厚云的垂直分布探测能力，未来测云雷达系统最好采用双波长甚至三波长（如94 、 37和13ghz ） 。 |
- Similar Words：
- "radar reflection interval" English translation, "radar reflection plotter" English translation, "radar reflection plottor" English translation, "radar reflection test" English translation, "radar reflective balloon" English translation, "radar reflectivity factor" English translation, "radar reflectivity plate" English translation, "radar reflector" English translation, "radar reflector buoy" English translation, "radar reflector rocket" English translation
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