| 硫酸盐和烟尘气溶胶辐射特性及辐射强迫的模拟估算 |
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| 引用本文： | 张立盛,石广玉.硫酸盐和烟尘气溶胶辐射特性及辐射强迫的模拟估算[J].大气科学,2001,25(2):231-242. |
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| 作者姓名： | 张立盛 石广玉 |
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| 作者单位： | 中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室,北京 100029 |
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| 基金项目： | 国家“九五”重中之重96-908-01-06专题以及国家自然科学基金资助项目49875012共同资助 |
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| 摘 要： | 利用已有的硫酸盐和烟尘气溶胶折射指数资料，精确计算了这两种气溶胶从太阳短波到红外谱段的辐射特性。然后，在LLNL化学输送模式(CTM)模拟的硫酸盐和烟尘气溶胶资料及改进的气溶胶参数化基础上，在国内首次用GCM估算了这两种气溶胶引起的全球辐射强迫。结果表明:(1)西欧是全球最大的硫酸盐辐射强迫中心，最大值出现在夏季，达-5.0W/m2；(2)烟尘强迫的最大中心出现在夏季的南美和非洲中南部，为4.0W/m2；(3)南半球大陆人为气溶胶的强迫不容忽视；(4)某些地区人为气溶胶的强迫在量值上可与CO2等温室气体引起的强迫相比拟。
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| 关 键 词： | 硫酸盐 烟尘 辐射特性 辐射强迫 |
The Simulation and Estimation of Radiative Properties and Radiative Forcing due to Sulfate and Soot Aerosols |
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| Zhang Lisheng and Shi Guangyu.The Simulation and Estimation of Radiative Properties and Radiative Forcing due to Sulfate and Soot Aerosols[J].Chinese Journal of Atmospheric Sciences,2001,25(2):231-242. |
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| Authors: | Zhang Lisheng and Shi Guangyu |
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| Abstract: | Using complex refractive index data of sulfate and soot aerosols, the radiative properties of the aerosols from 0.2-40 um wavelength were calculated by an accurate Mie scattering algorithm. Based on the mass concentration data of aerosols simulated by LLNL CTM model and the improved aerosol parameterization in GOALS / AGCM, the radiative forcing of the global anthropogenic sulfate and soot were estimated at first time in China. The results show that: (1) The largest center of the radiative forcing due to sulfate is located at West Europe in summer, and the central value is about -5.0 W / m2; (2) The largest value of the forcing due to soot occurs in South America and South and Central Africa in summer and amounts to 4.0 W/ m2, (3) The radiative forcing caused by anthropogenic aerosols in the Southern Hemisphere cannot be ignored; (4) The radiative forcing due to human activity in some areas can be comparable in magnitude with the forcing caused by greenhouse gases, such as CO2 etc. |
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| Keywords: | sulfate soot radiative property radiative forcing |
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