大気エアロゾルの気候影響に関する研究の過去と現在

概要

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The history and present status of studies on the climatic effect of atmospheric aerosols are briefly reviewed. Pioneering works in the 1970s resulted in the understanding of some of the basic mechanisms related to direct and indirect effects of aerosols on climate. Intensive and extensive discussions on the hypothetical “biosphere-cloud feedback mechanism” in the late 1980s had led the research community to make quantitative estimates of the anthropogenic sulfate distribution on a global scale. Since then, significant improvements have been made in the estimation of direct effect. On the other hand, progresses in both space-borne radiometers and data analytical techniques have allowed us to virtually “see” this indirect effect. However, it is necessary for studies to be done on the indirect effect while keeping in mind the difficulty in modeling the climate system, i.e., our knowledge on the global hydrological cycle is quite fragmentary and incomplete.
日本エアロゾル学会の論文
2003-12-20