温度和质量浓度对硫酸气溶胶光学特性的影响

刘玉芝; 潘多俊

温度和质量浓度对硫酸气溶胶光学特性的影响

刘玉芝^1, ,,
潘多俊²

1.
兰州大学大气科学学院,甘肃兰州730000;
2.
兰州军区空军气象中心,甘肃兰州730020

详细信息

通讯作者:
刘玉芝(1979-)，女，新疆奇台人，理学博士，主要从事大气辐射研究工作。

中图分类号: TN201;O439
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出版历程
- 刊出日期: 2010-03-12

Temperature and concentration effect on optical characteristics of H2SO4 aerosol

LIU Yu-zhi^{1
, ,},
PAN Duo-jun²

1.
College of Atmospheric Sciences of Lanzhou University,Lanzhou 730000,China;
2.
Meteorological Center of Lanzhou Air Force Military Area,Lanzhou 730020,China

摘要

摘要: 根据新版大气分子光谱资料集(HITRAN2008)中硫酸气溶胶的复折射指数资料，利用经典的Mie理论编写程序，计算不同温度和质量浓度下硫酸气溶胶粒子在10m和0.87m 2个波段的散射效率和散射相函数。结果表明，在10m波段，在相同的H2SO4/H2O质量浓度下，温度越高，硫酸气溶胶的后向散射强度越强，即冷却作用越强；在相同的温度下，硫酸粒子的质量浓度越小，其后向散射越弱，冷却作用越弱。在0.87m波段，硫酸粒子质量浓度一定时，温度变化对硫酸粒子散射强度的影响不大；若温度一定，在散射角大于173的后向方向，硫酸质量浓度越大，散射强度越小，其冷却效应越弱。
- 温度 /
- 质量浓度 /
- 硫酸气溶胶 /
- 散射效率 /
- 相函数
Abstract: Based on Mie theory and HITRAN2008 data, the scattering efficiency and phase function of H2SO4 aerosol at 10m and 0.87m wavelengths were analyzed when the aerosol radius was 2m and 5m. The results show that the cooling effect of H2SO4 particle is stronger at 10m wavelength with higher temperature under same H2SO4/H2O, while there is almost no effect at 0.87m wavelength. The results also show that the cooling effect of H2SO4 particle is weaker when the scattering angles are larger than 173 degree at 0.87m wavelength with higher H2SO4/H2O under the same temperature.
- temperature /
- concentration /
- H2SO4 aerosol /
- scattering efficiency /
- phase function

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参考文献(1)

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