Atmospheric aerosol optical depth is an indicator of air pollution.
气溶胶光学厚度也是大气污染的量化指示因子。
Some pictures are shown which described the aerosol optical depth (AOD) distribution over Beijing.
给出了描述北京地区气溶胶光学厚度分布的几幅图片。
The sensitivity of two day′s difference of apparent reflectivity to aerosol optical depth was simulated with 6S model.
用6S辐射传输模式模拟了两天的表观反射率差异对气溶胶光学厚度的敏感性；
The atmospheric aerosol optical depth is the key factor for evaluating atmospheric pollution and studying aerosol radiative effect.
大气气溶胶光学厚度是评价大气污染，研究气溶胶辐射效应的一个关键因子。
The geographical and temporal distribution pattern of aerosol radiative forcing is generally consistent with that of aerosol optical depth.
气溶胶辐射强迫的分布与其光学厚度的分布基本一致。
It is found that the aerosol optical depth over China showed an increasing trend but a slow upward trend after 1985, especially in the megacity regions.
中国地区气溶胶光学厚度呈现逐年增加的趋势，但1985年后增加趋势减缓，这种变化在大城市区域表现得更为明显。
Rapid increase of aerosol optical depth and coarse particle concentration, as well as aerosol neutral or anomalous extinction was observed during dusty periods.
沙尘期间，气溶胶光学厚度显著升高，而尺度上升，粗粒子浓度显著增加，大气气溶胶表现出中性或异常消光特征。
Variation and distribution characteristics of aerosol optical depth (AOD) and solar radiation in China, and the AOD retrieval method from broadband solar radiation were main goals in this paper.
我国气溶胶光学厚度（AOD）和太阳辐射长期以来的分布与变化特征，以及如何从宽带太阳辐射反演气溶胶光学厚度是本文的研究重点。
This means the seasonal variation of the aerosol spectral optical depth is mainly determined by the variation of surface visibility.
而不分级的光学厚度季节起伏主要由各季节的几率能见度决定。
This means the seasonal variation of the aerosol spectral optical depth is mainly determined by the variation of surface visibility.
而不分级的光学厚度季节起伏主要由各季节的几率能见度决定。
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