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Radiative effects of anthropogenic aerosol emissions across different source regions in Asia [slides presented at AOGS 14th Annual Meeting, August 2017, Singapore]

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posted on 26.11.2018, 04:28 authored by Benjamin S. GrandeyBenjamin S. Grandey
Radiative effects of anthropogenic aerosol emissions across different source regions in Asia
[slides presented at AOGS 14th Annual Meeting, August 2017, Singapore]
Benjamin S. Grandey & Chien Wang

Abstract. Anthropogenic aerosol emissions impact Earth’s climate system via radiative effects. We use the Community Earth System Model (CESM), with the Community Atmosphere Model version 5 (CAM5), to investigate the radiative effects of anthropogenic aerosols emitted from various sources over different regions in Asia. We consider land-based emissions from East Asia, Southeast Asia, South Asia, Central Asia, and Australia and New Zealand, in addition to shipping emissions. Within each region, we identify the relative contributions of local emissions and remote emissions to the net radiative effect.

Note. The simulations are described in “Background Conditions Influence the Estimated Cloud Radiative Effects of Anthropogenic Aerosol Emissions from Different Source Regions” by B. S. Grandey & C. Wang (submitted). A preprint is available via https://arxiv.org/abs/1808.05778. Complementing Grandey & Wang (submitted), these slides contain additional regional analysis of the net Radiative Flux Perturbation (RFP). The global results overlap with Grandey & Wang (submitted), but the results differ slightly due to differing analysis workflows: in particular, Grandey & Wang (submitted) contains an improved estimate of the standard error of the combined ΣΘ(All1–Θ0) results; in these slides, the standard error of the combined ΣΘ(All1–Θ0) results is underestimated.

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