首页 >  2003, Vol. 7, Issue (4) : 321-327

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全文摘要次数: 3222 全文下载次数: 27
引用本文:

DOI:

10.11834/jrs.20030415

收稿日期:

2002-01-24

修改日期:

2002-04-23

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北京市污染气溶胶散射特征实验及其数值模拟
1.中国科学院 遥感应用研究所重点实验室,北京 100101;2.中山大学 遥感应用中心,广州 510275;3.地质装备总公司,北京 100027;4.国家气象局,北京 100101
摘要:

用地基遥感方法对北京市主要大气污染类型的气溶胶散射进行多角度观测实验,对比分析不同污染类型,及在不同观测角度下污染气溶胶的散射特征;并建立对各类型污染气溶胶散射率进行了数值模拟的数学模型。在此基础上求出观测时污染气溶胶的混浊度。为污染气溶胶的卫星遥感打下基础。

Experiment and Numeric Simulation for the Scattering Characteristics of Pollute Aerosol in Beijing City
Abstract:

Usingg roundb asedr emotes ensing,m ultiplea ngleo bservationale xperimentfo rth es catteringo fs ynthetic aerosol of the。。types of air pollution in Beijing‘ tamed out. The scattering characteristics of synthetic aerosol in different air pollution types, and under different observational angle, are compared and analyzed, and then draw to the conclusionsth at;(I ) th ec ompositiono fsy nthetica erosolca nb ere flectedb yit ssc atteringc oeficientcu rve.T oth ep ollution type whose synthetic aerosol is mainly composed of coal smoke and soluble particles, the curvature of scattering coefficient curve changing with wavelength are obviously larger than that of the pollution type whose synthetic is mainly cam posed of sand and dust. The amount of synthetic aerosol is reflected by the value of scattering coefficient. (2) Synthetic aerosol on slightly polluted urban area are mainly composed of coal smoke and soluble particles, and in the composition of thes ynthetica erosolon th ea rean earla rgep lantso ron tr afficli ne,b otho fco alsm okea ndd ustar ev eryh igh.( 3)When zenith angles of sunlit and observation are larger than 40-, the change of observation angle only have slight influence to the result of observation. The change of zenith angle on the direction perpendicular to solar principle plane has far smaller influence on the result of scattering coefficient observation. Bas e o n t her esulto fex periment,t hen umericm odelfo rsi mulatings ynthetica erosolsc atteringi sb uilt,la yinga b ase for the space-bone remote sensing of synthetic aerosol.

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