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Proceedings Paper

Evaluation of seasonal change of aerosol properties from satellite and simulations
Author(s): Makiko Mukai; Itaru Sano
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Paper Abstract

A wide variety of aerosols are suspended in the atmosphere. Especially in East Asia, a huge amount of fossil fuel burning aerosols are emitted throughout the year. Further it seems that the characteristics of aerosols change with the season, and hence the influence impact of aerosols over the climate also varies according to the season. Thus an accurate estimation of seasonal aerosol properties is an urgent subject on the global climate problem. This work is based on the Moderate-resolution Imaging Spectroradiometer (MODIS) data and the simulation results with a three-dimensional aerosol transport-radiation model. It is of interest to mention that aerosol distribution explicitly shows the seasonal change. For example, aerosol concentration in summer is larger than that in winter from eastern China to Japan. This result is drawn from both MODIS data and model simulations. The model simulations suggest that the seasonal change is due to the variations in the photochemical reaction process and transportation process. MODIS data shows that the sulfate aerosols are much more dominant in summer than those in winter at Beijing which is influenced strongly by fossil fuel burning aerosols. This fact is also supported by model simulations. From the present study I can draw such a result in respect of surface radiation budget as the aerosol impact on the reduction of solar radiation is more dominant in summer than that in winter in East Asia.

Paper Details

Date Published: 25 September 2009
PDF: 9 pages
Proc. SPIE 7475, Remote Sensing of Clouds and the Atmosphere XIV, 74751F (25 September 2009); doi: 10.1117/12.829606
Show Author Affiliations
Makiko Mukai, Japan Aerospace Exploration Agency (Japan)
Itaru Sano, Kinki Univ. (United States)

Published in SPIE Proceedings Vol. 7475:
Remote Sensing of Clouds and the Atmosphere XIV
Richard H. Picard; Klaus Schäfer; Adolfo Comeron; Evgueni I. Kassianov; Christopher J. Mertens, Editor(s)

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