大气能见度

气溶胶对大气能见度、气候变化以及人类健康等有重要影响。

Aerosol particles affect visibility , climate , and our health and quality of life .

大气能见度与PM2.5浓度、温度、相对湿度呈负相关性，与大气压呈正相关性；

The correlations of visibility with PM_ ( 2.5 ) concentration , temperature and relative humidity were negative , but the correlation between visibility and atmospheric pressure were positive .

此外，烟黑与多环芳香烃（PAHs）和NOx等污染物有着复杂的内在联系，对人类健康造成了严重的危害，还会造成大气能见度降低和全球气候变暖。

In addition , soot has a complex internal relation with PAHs , NOx and other pollutants that is harmful to human health . And soot may also cause global warming and reduce the visibility of atmosphere .

1月份灰霾天气出现频率高达60.9%，灰霾天气下大气能见度与PM2.5浓度密切相关；

The hazes occured in high frequency in January , the frequency equaled to 60.9 % . There was close relation of visibility with PM_ ( 2.5 ) concentration in the haze weather .

研制了一种无线激光通信系统，旨在满足在中等大气能见度下通信距离不小于25km的应用。

A system of wireless laser communication is studied by which communication distance is beyond 25 kilometers in moderate atmosphere visibility .

同时，利用气溶胶550nm处的消光系数确定大气能见度。

In addition , the atmospheric visibility is retrieved by extinction coefficient at 550 nm .

大气能见度对激光警戒系统作用范围的影响

Effects of Atmospheric Visibility on Alerting Area of Laser Warning Receiver

空气污染与大气能见度及环流特征的研究

A Study on Air Pollution , Visibility and General Circulation Feature

重庆市区大气能见度变化特征及其影响因素分析

Characteristics of atmospheric visibility and its controlling factors in Chongqing

河北省1960～2002年城市大气能见度的变化趋势

Visibility Trends in 11 Cities of Hebei Province During 1960-2002

石家庄市大气能见度变化与大气颗粒物的关系研究

Study of Relationship between Atmospheric Visibility Variation and Ambient Particulate in Shijiazhuang

广州市大气能见度影响因子的贡献研究

Research on the Influential Factor of Visibility Reduction in Guangzhou

舰用探测大气能见度激光雷达样机的试验研究

Principle and Experimental Research of Carrier Lidar for Detecting Visibility

上海市大气能见度指数指标体系的研究

Studies on the visibility index - classified system in Shanghai

南阳市大气能见度变化趋势及影响因子分析

Analysis of Variation Trend of Atmospheric Visibility and Its Effect Factor in Nanyang

基于风险神经网络的大气能见度预测

Development and validation of visibility forecast technique based on the risk neural network

对应的当日大气能见度空间分布则相反。

However , the case of the air visibility spatial distribution is adverse .

气溶胶粒子对太阳光的散射和吸收，会影响大气能见度，使可见距离缩短。

The particles of aerosol can reduce the atmospheric visibility through absorbing and scattering .

利用大气能见度获取多波长气溶胶光学特性

Multi-wavelength aerosol optical characteristics obtained by atmospheric visibility

香港大气能见度与污染物长期变化的特征和相互关系

Characterization and relationship of long-term visibility and air pollutant changes in the Hongkong region

北京市大气能见度初步研究

Preliminary Study of Atmospheric Visibility in Beijing

内燃机气缸磨损的原因及规律北京市大气能见度规律及下降原因

The Reason Cause and regularity of wear and tear in air cylinder of internal combustion engine

灰霾天气下大气能见度还与细颗粒物的粒径分布密切相关。

There was also close correlation between visibility and the aerodynamic diameter distribution of fine particulate mater .

利用历史资料和外场观测数据，对北京市大气能见度的规律进行了分析。

The visibility rules in Beijing were analyzed on the basis of historic data and field observational data .

结果发现，北京市大气能见度较差的时间占全年的近一半。

It was found that the visibility is some low in Beijing among almost half of the year .

在晴好天气下总紫外辐射高空与地面相对差值很小；在大气能见度差时总紫外辐射值减少，但是高空与地面的差值相对加大。

The total UV radiation difference value between high altitude and ground in fine weather is smaller than that of bad weather .

结果表明，河北省11个城市大气能见度的地理分布大致呈现自北向南其值由高到低的势态；

The result shows that from north to south of Hebei Province , the distribution character of visibility is from high to low .

深圳市大气能见度与细粒子浓度统计模型血浆置换模型与血浆胆红素浓度的变化规律

Statistical Model of the Relationship Between Atmospheric Visibility and PM_ ( 2.5 ) in Shenzhen A Plasma Exchange Model and Variation of Bilirubin Concentration

城市地面扬尘是影响城市空气质量、降低大气能见度、危害市民身体健康的城市污染源之一。

Urban fugitive dust is one of the urban pollution sources of influencing air quality , degrading atmospheric visibility and endangering citizens ' health .

根据上海市1999~2002年间逐时能见度资料的分析，建立了上海市大气能见度等级。

Based on the analysis of history data of hourly visibility from 1999 to 2002 , the visibility class for Shanghai City was established .