Seasonal variability of aerosol optical properties in Darwin, Australia

被引：16

作者：

Bouya, Zahra ^{[1
]}

Box, Gail P. ^{[1
]}

Box, Michael A. ^{[1
]}

机构：

[1] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia

来源：

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2010年 / 72卷 / 9-10期

基金：

澳大利亚研究理事会;

关键词：

AOT; Angstrom exponent; Biomass burning; Sea salt; PARTICLE-SIZE DISTRIBUTIONS; WAVELENGTH DEPENDENCE; NORTHERN AUSTRALIA; DEPTH; OZONE; URBAN; CAMPAIGN; SMOKE; INSTRUMENT; SCATTERING;

D O I：

10.1016/j.jastp.2010.03.015

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

This paper investigates the annual cycle in aerosol optical thickness (AOT) and Angstrom exponent in Darwin, Australia, a coastal site in the Tropical Warm Pool where the major aerosol sources are biomass burning and sea salt. We have used radiometer measurements from the Tropical Western Pacific Atmospheric Radiation Measurement facility for the period March 2002-June 2003. Strong seasonal cycles in AOT and Angstrom exponent were observed, peaking during the burning season (May-November). Investigation of the spectral dependence of optical thickness showed that the Angstrom formula can be satisfactorily fitted to the AOT data during the burning season but not on summer and autumn afternoons due to the presence of sea salt aerosols. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：726 / 739

页数：14

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