Aerosol optical depths and direct radiative perturbations by species and source type Export

@article{citeulike:371935, abstract = {We have used the Laboratoire de M\ét\éorologie Dynamique General Circulation Model (LMDZT GCM) to estimate the relative contributions of different aerosol source types (i.e., fossil fuels, biomass burning, and \&\#8220;natural\&\#8221;) and aerosol species to the aerosol optical depth (AOD) and direct aerosol radiative perturbation (DARP) at the top-of-atmosphere. The largest estimated contribution to the global annual average AOD (0.12 at 550 nm) is from natural (58\%), followed by fossil fuel (26\%), and biomass burning (16\%) sources. The global annual mean all-sky DARP in the shortwave (SW) spectrum by sulfate, black carbon (BC), organic matter (OM), dust, and sea salt are \&\#8722;0.62, +0.55, \&\#8722;0.33, \&\#8722;0.28, and \&\#8722;0.30 Wm^\&\#8722;2, respectively. The all-sky DARP in the longwave spectrum (LW) is not negligible and is a bit less than half of the SW DARP. The net (i.e., SW+LW) DARP distribution is predominantly negative with patches of positive values over the dust source regions, and off the west coasts of Southern Africa and South and North America. For dust aerosols the SW effect is partially offset by LW greenhouse effect.}, author = {Reddy, Shekar M. and Boucher, Olivier and Balkanski, Yves and Schulz, Michael}, citeulike-article-id = {371935}, citeulike-linkout-0 = {http://www.agu.org/pubs/crossref/2005/2004GL021743.shtml}, citeulike-linkout-1 = {http://dx.doi.org/10.1029/2004GL021743}, day = {17}, doi = {10.1029/2004GL021743}, journal = {Geophysical Research Letters}, keywords = {aeronet, aerosol, aod, speciation}, month = {June}, pages = {L12803+}, posted-at = {2005-10-31 00:14:41}, priority = {5}, title = {Aerosol optical depths and direct radiative perturbations by species and source type}, url = {http://dx.doi.org/10.1029/2004GL021743}, volume = {32}, year = {2005} }

TY - JOUR ID - citeulike:371935 L3 - citeulike-article-id:371935 N2 - We have used the Laboratoire de Météorologie Dynamique General Circulation Model (LMDZT GCM) to estimate the relative contributions of different aerosol source types (i.e., fossil fuels, biomass burning, and “natural”) and aerosol species to the aerosol optical depth (AOD) and direct aerosol radiative perturbation (DARP) at the top-of-atmosphere. The largest estimated contribution to the global annual average AOD (0.12 at 550 nm) is from natural (58%), followed by fossil fuel (26%), and biomass burning (16%) sources. The global annual mean all-sky DARP in the shortwave (SW) spectrum by sulfate, black carbon (BC), organic matter (OM), dust, and sea salt are −0.62, +0.55, −0.33, −0.28, and −0.30 Wm^−2, respectively. The all-sky DARP in the longwave spectrum (LW) is not negligible and is a bit less than half of the SW DARP. The net (i.e., SW+LW) DARP distribution is predominantly negative with patches of positive values over the dust source regions, and off the west coasts of Southern Africa and South and North America. For dust aerosols the SW effect is partially offset by LW greenhouse effect. JF - Geophysical Research Letters TI - Aerosol optical depths and direct radiative perturbations by species and source type VL - 32 SP - L12803 KW - aeronet KW - aerosol KW - aod KW - speciation AU - Reddy, Shekar AU - Boucher, Olivier AU - Balkanski, Yves AU - Schulz, Michael PY - 2005/06/17/ UR - http://dx.doi.org/10.1029/2004GL021743 ER -