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. © 2010 Elsevier Ltd.
CITATION STYLE
Bouya, Z., Box, G. P., & Box, M. A. (2010). Seasonal variability of aerosol optical properties in Darwin, Australia. Journal of Atmospheric and Solar-Terrestrial Physics, 72(9–10), 726–739. https://doi.org/10.1016/j.jastp.2010.03.015
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