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Estimation of the aerosol perturbation to the Earth's Radiative Budget over oceans using POLDER satellite aerosol retrievals
Author(s) -
Boucher O.,
Tanré D.
Publication year - 2000
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl010963
Subject(s) - aerosol , radiative forcing , environmental science , satellite , radiative transfer , atmospheric sciences , shortwave , perturbation (astronomy) , radiative flux , sky , meteorology , climatology , geology , physics , quantum mechanics , astronomy
POLDER satellite retrievals of aerosol properties over oceans are used to estimate a global‐mean clear‐sky aerosol shortwave flux perturbation of order −5 to −6 Wm −2 . Uncertainties due to aerosol absorption and POLDER cloud screening algorithm are quantified. In order to bound the radiative forcing by anthropogenic aerosols, we attempt to remove the contribution of background aerosols from these estimates and present all‐sky aerosol radiative effects for three regions and two methods. The results are sensitive to the thresholds used to define the background conditions.