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   回波高度 在 气象学 分类中 的翻译结果: 查询用时:0.091秒
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回波高度    
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  echo depth
    By means of the contrast and analysis between the data of 712 and 716 radars, itis shown that there are great differences of the echo depth and echo intensity between the two radars, and the method in operation for 716 radar is put forward.
    文章通过对712雷达和716雷达回波资料的对比分析,阐明在测量回波高度和回波强度时,两部雷达存在较大差异的原因,并提出了716雷达在保障中的应用方法
短句来源
  echo height
    According to the synoptic background and the evolution characteristics of radar echoes of a strong single hail event occurred in Yongdeng county of Gansu Province on July 8,2003,the jumping change of echo height,intensity and liquid water content,and the special structure features of the strong single hail were analyzed in this paper.
    根据2003年7月8日发生在甘肃省永登县境内的一次强单体冰雹过程,从天气学背景、雷达回波的演变特征出发,分析了该过程回波高度和含水量、高度和强度的跃增变化以及强单体特殊的结构特征。
短句来源
  echo height
    According to the synoptic background and the evolution characteristics of radar echoes of a strong single hail event occurred in Yongdeng county of Gansu Province on July 8,2003,the jumping change of echo height,intensity and liquid water content,and the special structure features of the strong single hail were analyzed in this paper.
    根据2003年7月8日发生在甘肃省永登县境内的一次强单体冰雹过程,从天气学背景、雷达回波的演变特征出发,分析了该过程回波高度和含水量、高度和强度的跃增变化以及强单体特殊的结构特征。
短句来源
  its height
    The evolvement of echo during the formation of hail storm and the relation of echo intensity with its height are analyzed by use of echo data. of the 711 rain radar.
    本文用711测雨雷达实测的冰雹云过程回波资料,分析了大小回波在雹暴形成中的演变过程以及回波强度和回波高度间的关系。
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  echo depth
Beryl's minisupercells were quite intense, with mesocyclone signatures sometimes occupying most of the echo depth.
      
Mean properties of first-echo depth vs coalescence category for treated echoes meeting the selection criteria.
      
  echo height
The duration of the echo, maximum echo area, maximum echo height and mean echo velocity were about 6 hours, 5000km2, 16km, and 95°/5.2m s-1 for mesosystem A and about 11 hours, 12000km2, 14km, and 90°/3.2m s-1, for mesosystem B, respectively.
      
The results show percentages of correct allocation exceeding 80% when the echo height and the maximumreflectivity are used.
      
The third echo height is larger than expected if we assume that the total magnetization remains uniform in space.
      
We obtain approximate solutions for the free induction decay (FID), the FID lineshape, and spin-echo height.
      
Recording echo height comparisons from actual defects and their equivalent reflectors from the test block used.
      
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  echo height
The duration of the echo, maximum echo area, maximum echo height and mean echo velocity were about 6 hours, 5000km2, 16km, and 95°/5.2m s-1 for mesosystem A and about 11 hours, 12000km2, 14km, and 90°/3.2m s-1, for mesosystem B, respectively.
      
The results show percentages of correct allocation exceeding 80% when the echo height and the maximumreflectivity are used.
      
The third echo height is larger than expected if we assume that the total magnetization remains uniform in space.
      
We obtain approximate solutions for the free induction decay (FID), the FID lineshape, and spin-echo height.
      
Recording echo height comparisons from actual defects and their equivalent reflectors from the test block used.
      
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  its height
The energy barrier of the formation of a nucleus of a monolayer on the surface is located in the region of extremely small sizes and its height does not exceed the energy of thermal motion kBT.
      
Its base was cylindrical or spheric; its height was 24 cm, and its base radius was 40 cm.
      
The acrosome is relatively larger, and its height is 1-1.2 μm.
      
borealis has a slightly elongate and flattened shell, its width is less than 50% of its height.
      
Finally, the observations testify to the presence of another spiral arm that is les clearly manifest in terms of both its luminosity and its height above the unperturbed disk surface.
      
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The ground electric field produced by thunderstorm was studied by using field mill, lightning counter and weather radar.It was found that the charge distribution of thunderstorms in Pingliang,Gansu, is generally with a upper positive charge zone extending upward in the upper layer and a lower negative charge zone of which the horizontal dimension may reach tens of hilometers.In addition there is a minor positive charge area expanding horizontally over 10 km near cloud base.

本文介绍了利用电场仪、闪电计数器以及雷达对雷暴云地面电场进行观测的结果。甘肃平凉地区雷暴云电荷分布一般为上正下负,云底附近有一小正电荷区。上层正电荷区可向上延伸,而下层负电荷区水平尺度可达数个公里,云底小正电荷区也可扩展10公里以上。 降水区地面呈现正电场。雷暴云闪电电矩变化可在40—300库伦公里间,平均值为120库伦公里,随着云体的发展,也就是说,随着雷达强回波高度的增高,大于180库伦公里的闪电增多。闪电后电场初始恢复速率平均为1/7/秒。 对于雷暴云电场特征的可能机制也作了初步讨论。

In this paper,electric and echo characteristics,convection and precipitation were analysed and correlation between them were investigated in 6 different cloud systems The results indicated that except instability energy,-10℃ and 0℃ temperature levels,altitude difference between them,altitude difference between 0℃ temperature level and the top of cloud were important parameters that represented dynamics and electric characteristics in thunderstorm The electrification processes in thunderstorm strongly depended...

In this paper,electric and echo characteristics,convection and precipitation were analysed and correlation between them were investigated in 6 different cloud systems The results indicated that except instability energy,-10℃ and 0℃ temperature levels,altitude difference between them,altitude difference between 0℃ temperature level and the top of cloud were important parameters that represented dynamics and electric characteristics in thunderstorm The electrification processes in thunderstorm strongly depended on ice phase of cloud The relationship between electric activity and convective activity was positive correlation Most of lightning are occured during height for 30dBz echo was higher than -10℃ temperature level The intense electric activity corresponded to heavy precipitation and didn't correspond to weak precipitation The lightning may be influence on characteristics of thunderstorm during dissipating stage

通过对6次不同云系电特性、回波、对流及降水特性的综合分析,探讨了它们之间的相关性。结果表明:除不稳定能量外,-10℃层和0℃层高度以及他们之间的高度差、0℃层与云顶的高度差也是表征雷暴动力和电特性的重要参量;雷暴云起电过程对冰相作用有较强的依赖性;雷暴中的电活动与对流活动成正相关,闪电多发生在30dBz强回波高度大于-10℃层高度时段内,强烈的电活动与强降雨有很好的对应关系,而与一般性降雨对应关系较差;在雷暴消散期,闪电可能会影响雷暴的特性

By means of the observation and boundary layer data,the characteristics of the echo waves of radiation fog in Chongqing on January 2,1990 are studied and compared with that on December 30,1989.The results show that the height of the fog top echoes is the same as that of the inflection of the inversion layer and relative humidity.The fog top...

By means of the observation and boundary layer data,the characteristics of the echo waves of radiation fog in Chongqing on January 2,1990 are studied and compared with that on December 30,1989.The results show that the height of the fog top echoes is the same as that of the inflection of the inversion layer and relative humidity.The fog top echoes wave vary in its mature stage and descend in its dissipated stage.The concentration changes of the air pollutants on the earth surface are closely ralated to the condition of the mixed layer under the inversion in the morning:the thinner the mixed layeris and the conger the duration is,the higher the surface concentraction is.

结合气象观测和大气边界层探测资料,分析了1990年1月2日重庆雾的声雷达回波特征,并与1989年12月30日雾的回波作了比较。结果表明,雾顶回波高度与逆温和相对湿度的转折高度一致;雾顶回波在雾的成熟期呈现波动,在消散期有一下降过程。上午大气污染物地面浓度的变化与逆温混合层状况有密切关系,混合层较薄且持续时间较长时,地面浓度较大

 
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