Publication Abstracts

Lohmann et al. 2010

Lohmann, U., L. Rotstayn, T. Storelvmo, A. Jones, S. Menon, J. Quaas, A. Ekman, D. Koch, and R. Ruedy, 2010: Total aerosol effect: Radiative forcing or radiative flux perturbation. Atmos. Chem. Phys., 10, 3235-3246, doi:10.5194/acp-10-3235-2010.

Uncertainties in aerosol radiative forcings, especially those associated with clouds, contribute to a large extent to uncertainties in the total anthropogenic forcing. The interaction of aerosols with clouds and radiation introduces feedbacks which can affect the rate of rain formation. In former assessments of aerosol radiative forcings, these effects have not been quantified. Also, with global aerosol-climate models simulating interactively aerosols and cloud microphysical properties, a quantification of the aerosol forcings in the traditional way is difficult to define properly. Here we argue that fast feedbacks should be included because they act quickly compared with the time scale of global warming. We show that for different forcing agents (aerosols and greenhouse gases) the radiative forcings as traditionally defined agree rather well with estimates from a method, here referred to as radiative flux perturbations (RFP), that takes these fast feedbacks and interactions into account. Based on our results, we recommend RFP as a valid option to compare different forcing agents, and to compare the effects of particular forcing agents in different models.

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BibTeX Citation

  author={Lohmann, U. and Rotstayn, L. and Storelvmo, T. and Jones, A. and Menon, S. and Quaas, J. and Ekman, A. and Koch, D. and Ruedy, R.},
  title={Total aerosol effect: Radiative forcing or radiative flux perturbation},
  journal={Atmos. Chem. Phys.},

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RIS Citation

ID  - lo09000a
AU  - Lohmann, U.
AU  - Rotstayn, L.
AU  - Storelvmo, T.
AU  - Jones, A.
AU  - Menon, S.
AU  - Quaas, J.
AU  - Ekman, A.
AU  - Koch, D.
AU  - Ruedy, R.
PY  - 2010
TI  - Total aerosol effect: Radiative forcing or radiative flux perturbation
JA  - Atmos. Chem. Phys.
VL  - 10
SP  - 3235
EP  - 3246
DO  - 10.5194/acp-10-3235-2010
ER  -

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