Impact of preindustrial to present-day changes in short-lived pollutant emissions on atmospheric composition and climate forcing ...

We describe and evaluate atmospheric chemistry in the newly developed Geophysical Fluid Dynamics Laboratory chemistry-climate model (GFDL AM3) and apply it to investigate the net impact of preindustrial (PI) to present (PD) changes in short-lived pollutant emissions (ozone precursors, sulfur dioxide...

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Bibliographic Details
Main Authors: Naik, Vaishali, Horowitz, Larry W., Fiore, Arlene M., Ginoux, Paul, Mao, Jingqiu, Aghedo, Adetutu M., Levy II, Hiram
Format: Article in Journal/Newspaper
Language:unknown
Published: Columbia University 2013
Subjects:
Pollution > Environmental aspects
Radiative forcing
Atmospheric chemistry > Mathematical models
Meteorology
Climatic changes
Atmospheric chemistry
Sea ice
Online Access:https://dx.doi.org/10.7916/d8pc321f
https://academiccommons.columbia.edu/doi/10.7916/D8PC321F
Description
Summary:We describe and evaluate atmospheric chemistry in the newly developed Geophysical Fluid Dynamics Laboratory chemistry-climate model (GFDL AM3) and apply it to investigate the net impact of preindustrial (PI) to present (PD) changes in short-lived pollutant emissions (ozone precursors, sulfur dioxide, and carbonaceous aerosols) and methane concentration on atmospheric composition and climate forcing. The inclusion of online troposphere-stratosphere interactions, gas-aerosol chemistry, and aerosol-cloud interactions (including direct and indirect aerosol radiative effects) in AM3 enables a more complete representation of interactions among short-lived species, and thus their net climate impact, than was considered in previous climate assessments. The base AM3 simulation, driven with observed sea surface temperature (SST) and sea ice cover (SIC) over the period 1981–2007, generally reproduces the observed mean magnitude, spatial distribution, and seasonal cycle of tropospheric ozone and carbon monoxide. The ...

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