Optimal selection of atmospheric monitoring sites based on grey clustering method

A Study on Atmospheric Monitoring Based on Differential Optical Absorption Spectroscopy

基于差分吸收光谱技术的大气气体监测的研究

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Grey Clustering Method was applied to optimize the selection of atmospheric monitoring sites.

运用基于灰色关联度的聚类分析方法实现了常德市大气监测点位优化。

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Differential Optical Absorption Spectroscopy and Applications in Atmospheric Monitoring Studies

差分吸收光谱技术及在大气监测领域中的应用

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At first, an short introduction to the atmospheric radiation transferring model is given, then the factors impacting the aerosol optical depth inversion have been analyzed one by one, which include apparent reflectance, surface reflectance, geometry condition, atmospheric water vapor content and aerosol modes.

首先介绍了大气辐射传输模型；然后找出影响大气气溶胶反演的各个因素后逐一模拟分析，这些因子包括表观反射率、地表反射率、几何位置的变化、大气水汽含量和气溶胶模式等。

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Based on the basic course of the atmospheric radiation, the course mainly introduces the theory of radiative transfer in atmosphere, clouds and aerosols, and some practicable methods on atmospheric radiative transfer compute, and discusses the principles of radiative transfer to application on remote sensing.

本课程从大气辐射的基本过程出发，主要介绍了大气、云和气溶胶中的辐射传输理论和一些较好的实用解法，讨论了辐射传输原理在遥感上的应用。

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With such means as density-slice, post-grade comparison and image difference, the images after geometric correction and atmospheric radiation correction can audio-visually and quantitatively reflect the temporal and spatial variations in the concentration of suspended sediments in different years.

经几何校正和大气辐射校正后的影像，通过密度分割、分级后比较和影像差值等变化检测技术，直观和定量地反映了研究年间悬浮物浓度在时间和空间分布上的变化。

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Formation of sulfuric acid aerosol form a binary mixture of sulfuric acid and water is one of the most important processes of secondary particles formation in troposphere, which can seriously affect the atmospheric radiation balance and climate change directly or indirectly.

由硫酸-水组成的二元混合物形成硫酸气溶胶过程是大气对流层中二次粒子形成的一个重要途径，它直接或间接的影响大气辐射平衡和气候变化。

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The development of optical imaging Simulation is introduced, and space remote sensing image simulation process based on the leaf area index and other surface parameters is studied in the paper, which anglicizing the surface reflectivity, atmospheric radiation transfer and optical sensor theory.

本文在系统地介绍了国内外光学成像仿真技术发展概况的基础上，分别对地表反射率生成、大气辐射传输、光学传感器原理进行了分析，提出基于叶面积指数等地表参数的航天遥感图像仿真流程。

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With measured data, this paper puts forward a modified downward atmospheric radiation assessment model based on Iziomon ( 2003)'s model and the measurement information. A better match between the estimation value and the actual measured value is achieved.

本文依据实测资料，对Iziomon（2003）昙天大气下行辐射估算模型进行修正，修正后的模型估算值与实测值非常接近。

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Black carbon ( BC) aerosol recently is a very active research topic, because it has similar effect to global climate warming with green house gases due to its ability of absorbing solar and atmospheric radiation.

黑碳气溶胶是近几年非常活跃的一个研究课题，因为黑碳气溶胶吸收太阳和地球大气的辐射，对全球气候变暖有重要的影响。

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Firstly, the paper discusses the transmit mode of atmospheric radiation; some pivotal parameters for remote sensing are analyzed and calculated, such as the absorption characteristic of oxygen molecular, atmospheric transmissivity and weight function.

首先，本文探讨了大气辐射传输模式的原理，分析计算了用于遥感的几个关键参数：大气氧气分子的吸收特性、大气透过率、权重函数，给出仿真结果。

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The error of missile speed was deduced by the distance error. The distance error was obtained by a microwave radiometer directly detecting the atmospheric radiation brightness temperature on the path of radio wave propagation.

其速度（距离变化率）误差是利用与距离误差△R之间的关系得到，而△R由微波辐射计在电波传播路径上直接测量大气辐射亮度温度得到。

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The radiation from the ground received by Hyperspectral imaging sensors includes not only the ground reflectance spectral information, but also the change information of surface irradiance reflection due to the effects of atmospheric radiation transfer.

高光谱成像系统的传感器接收到的地面辐射，既包括了地面反射光谱信息，也记录了大气辐射传输效应引起的地面反射辐照度的变化信息。

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The numerical value solution of atmospheric radiation transmission equation ( RTE) is used to construct point spread function and implement the restoration of all kinds of atmosphere degraded images under different weather conditions.

该算法利用大气辐射传输方程的数值解构造点扩散函数，可用于不同天气条件下的退化图像的复原。

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On the basis of discussion and verification of the calculation methods for downward atmospheric radiation and surface effective radiation, computation and analysis are done of their climatic features in the Plateau and surroundings.

本文在讨论并验证大气逆辐射和地表有效辐射计算方法的基础上，计算并分析了两者在青藏高原及其周围地区的气候特征。

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It is very important to measure and to monitor water vapor in the air, because it plays a very important role in weather modification and forecast, climate, and atmospheric radiation transfer.

由于大气可降水量在人工影响天气、天气预报、气候影响、大气辐射传输等方面都具有非常重要的作用，所以准确精细地监测水汽优为显得重要。

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Owing to the important role clouds play in atmospheric radiation, many algorithms have been developed to retrieve cloud cover from Advanced Very High Resolution Radiometer ( AVHRR) data.

云在大气辐射中起重要作用，因此有许多应用高分辨辐射仪（AVHRR）数据反演云复盖的算法。

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From 1994 to 2008, observation data of atmospheric radiation was absent at a rate of 4.7% a year, and relatively more data was absent before 2000.

1994-2008年大气辐射观测数据的缺测率平均在4.7%/年，但是2000年之前缺测相对较多。

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The budget of the atmospheric radiation energy over Eastern Asia ( 1) the budget of solar radiation energy of the earth and the atmosphere

东亚地区的大气辐射能的收支（一）&地球和大气的太阳辐射能收支

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The budget of the atmospheric radiation energy over Eastern Asia ( 2) long-wave radiation and radiation balance in a clear atmosphere

东亚地区大气辐射能收支（二）&晴天大气长波辐射和晴天大气辐射差额

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