エアロゾル気候影響評価の現状と今後の展開

Translated title of the contribution: Review and Future Studies of Estimating Aerosol Effects on Climate System

Research output: Contribution to journalArticlepeer-review

Abstract

The aerosol effects on the climate system are roughly divided into three categories: direct, indirect, and semi-direct effects. Observations from satellites and ground with remote sensing and numerical models have been developed to understand and estimate aerosol effects on a global scale. In the latest assessment report of the Intergovernmental Panel on Climate Change (IPCC) , however, there are still large uncertainties in their radiative forcings in comparison with the estimation of long-lived greenhouse gases. To reduce the uncertainties, we have to study the three-dimensional aerosol distributions and the cloud-aerosol interaction more accurately. It is important to observe aerosol vertical profiles with lidar, one of the active sensors, to understand the three-dimensional aerosol distributions as well as to continue observations with passive sensors. The data assimilation, which harmonizes numerical models with observations, is also an effective method to reduce the uncertainties. A cloud resolving model coupled with an aerosol transport model is a useful tool to better understand the cloud-aerosol interaction. Efforts to analyze the aerosol climate effects quantitatively will result in more reliable projection of the future climate change and elucidating climate system.
Translated title of the contributionReview and Future Studies of Estimating Aerosol Effects on Climate System
Original languageJapanese
Pages (from-to)237-241
Number of pages5
Journalエアロゾル研究
Volume24
Issue number4
DOIs
Publication statusPublished - 2009
Externally publishedYes

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