On daytime variations of atmospheric aerosol optical depth and aerosol radiative forcing

被引：5

作者：

Zhuravleva T.B. ^{[1
]}

Kabanov D.M. ^{[1
]}

Sakerin S.M. ^{[1
]}

机构：

[1] Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, pl. Akademika Zueva 1, Tomsk

来源：

Atmospheric and Oceanic Optics | 2010年 / 23卷 / 6期

基金：

俄罗斯基础研究基金会;

关键词：

Solar Zenith Angle; Aerosol Optical Thickness; Aerosol Radiative; Aerosol Radiative Force; Atmospheric Moisture Content;

D O I：

10.1134/S1024856010060138

中图分类号：

学科分类号：

摘要：

Based on the results of multiyear measurements of spectral atmospheric transparency in the wavelength range of 0.37–4 μm, we discuss the regularities of daytime variations of the characteristics of aerosol optical depth (AOD) and atmospheric moisture content in a typical Siberian region (Tomsk). For different atmospheric conditions (seasons, air masses), quantitative characteristics of the average daytime behavior of the spectral AOD and Angstrom parameters are presented. We suggest an empirical model for the daytime behavior of atmospheric AOD in the wavelength region of 0.37–4 μm, which is based on the use of the daily average values of the Angstrom parameters. We discuss the effect of the daytime AOD variations on the instantaneous and daily average values of the aerosol radiative forcing at the underlying surface level and at the top of the atmosphere. The aerosol radiative effects are analyzed taking into account both the average daytime variations of the AOD as well as relatively large AOD variations during the day characteristic of a concrete situation. © 2010, Pleiades Publishing, Ltd.

引用

页码：528 / 537

页数：9

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