Estimation of the direct radiative forcing due to sulfate and soot aerosols

Gunnar Myhre; Frode Stordal; Knut Restad; Ivar S. A. Isaksen

doi:10.3402/tellusb.v50i5.16230

Estimation of the direct radiative forcing due to sulfate and soot aerosols

Tellus B: Chemical and Physical Meteorology

Volume 50 (1998): Issue 5

By: Gunnar Myhre, Frode Stordal, Knut Restad and Ivar S. A. Isaksen

Open Access

|Jan 1998

Abstract

The direct radiative forcings due to tropospheric sulfate and fossil fuel soot aerosols are calculated. The change in the atmospheric sulfate since preindustrial time is taken from a recent three-dimensional chemistry transport model calculation. A multistream radiative transfer code and observed atmospheric input data is used. The direct radiative forcing due to sulfate is calculated to — 0.32 W/m². Our results for global and annual mean radiative forcing have been compared with results from other model studies.We have assumed a linear relationship between the concentration of fossil fuel soot and sulfate aerosols. The resulting radiative forcing due to soot particles is 0.16 W/m². Two types of mixtures of sulfate and soot are further assumed. The calculated single scattering albedo is compared to observations.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusb.v50i5.16230 | Journal eISSN: 1600-0889

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Language: English

Page range: 463 - 477

Submitted on: Nov 13, 1997

Accepted on: Jun 17, 1998

Published on: Jan 1, 1998

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 1998 Gunnar Myhre, Frode Stordal, Knut Restad, Ivar S. A. Isaksen, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 50 (1998): Issue 5