查询词典 radiation fog

The relationships of pulse distortion depending on frequency, pulse width, rain rate and path length are studied .The conditions of the broadening and compression for pulse wave are given. Based on the scattering characteristics of fog, the attenuations and reflectivities at millimeter wave are computed and analyzed for radiation and advection fog. The attenuation along earth-space deduced by radiation and advection fog is obtained and the results are compared.

其次基于单个雾滴的散射特性，对毫米波段电磁波通过平流雾和辐射雾时产生的衰减效应特性和反射率进行了分析和讨论，通过分析预测雾衰减系数的常用经验模型，预测了毫米波段电磁波通过平流雾和辐射雾地空路径传播时的衰减特性。

At the same time, the effects of fog on ultraviolet radiation intensity were also analyzed.

同时，详细分析了雾对辐射强度的影响。

Simulation and Analysis of a Radiation Fog Event in Beijing Area.

北京地区一次辐射雾的数值模拟。

A radiation fog on 20 November 2006 in Beijing area is simulated and diagnosed with MM5 nonhydrostatic model.

利用非静力中尺度模式MM5V3对2006年11月20日北京地区的一次大雾天气过程进行了数值研究。

The winds were light and the air near the ground was moist, conditions ideal for formation of radiation fog.

风很轻，靠近地面的空气很潮湿，构成了形成辐射尘的理想环境。

The experiment is valuable in study of the light transmission in fog and in analyzing the effect of fog on laser radiation polarization in the atmosphere.

Chu等[3]则对0·63、3·5、10·6μm激光束因雾引起的衰减和散射进行了计算和测量，并详细讨论了2·6 km路径上的传播测量，得出光在雾中的衰减很大程度上是由于许多小液滴散射的结论。

The universe was shrouded in a dense fog of radiation, which only cleared after 1 million years, leaving the transparent spangled space we see in the night sky now.

宇宙笼罩在辐射的浓雾之中，直到100万年以后才消散开来，露出我们现在所看到的夜空里晶莹闪烁的苍穹。

in this paper,the stealthy target′s millimeter wave radiation character is studied.the millimeter wave attenuation induced by sea fog is analyzed.and the detecting capability of the ground-based passive millimeter wave radiometry arrays is discussed.according to one dimension 32 channel 8 mm radiometry arrays detecting stealth target,we have a simulation.the results of the simulation show that it is an efficient way in the thick sea fog condition.

摘 要：研究了空中隐身目标的毫米波辐射特性，分析了浓海雾对毫米波辐射信号的衰减，并对无源毫米波辐射计阵列探测热辐射源的性能进行了分析。在理论建模的基础上针对一维32通道8 mm辐射计阵列探测空中隐身目标进行了仿真实验，结果表明毫米波辐射计阵列在浓海雾气候条件下探测空中隐身目标是一种非常有效的手段。

For meeting the needs of automated real-time dynamic monitoring of heavy fog events by means of a weather satellite remote-sensing technique for specialized meteorological services like military operations and highway traffic, the paper presents a systematic study of spectral characteristics of visible and infra red light, the textures and dynamic dispersals of fogs on satellite imagery in the context of theory on the transmission of atmospheric radiation, thereby revealing their abruptness, waviness and mass-like features, which, in combination with a synthetic technique for cloud/fog maps of multi-channel remote-sensing spectra are used to set up a model for automatic separation of fogs from clouds based on the integrative application of spectral features and texture structures, for which are constructed corresponding discfiminant functions and criteria, and on this basis prepared is a"system for remotely-sensing monitoring of low cloud and heavy fog"which has been used for tests, with the main conclusions shown as follows.

本文针对军事和高速公路等专业气象服务中应用气象卫星遥感技术对大雾进行自动化实时动态监测的实际需要，从大气辐射传输理论入手，系统地研究了气象卫星遥感图像上云雾的可见光和红外光谱特征、纹理结构特征和大雾的消散动态特征，揭示了雾的突发性、波动性和团状雾特性，通过研究多通道遥感光谱的云雾图像合成技术，建立了综合应用光谱特征和纹理结构特征的云雾自动分离模型，给出了相应的判别函数和判别准则，研制了&低云大雾遥感监测系统&，并进行了实际应用试验。

Based on Gamma distribution model of fog drip size derived from the empirical relation of visibility and water content for advection and radiation fogs, the relations between radar reflectivity factor and fog visibility or water content are proposed.

利用平流雾与辐射雾的能见度与含水量的经验公式导出的 Gamma 雾滴谱分布，得到了平流雾和辐射雾的雷达反射因子 Z与雾的能见度、含水量的关系式。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。