Corrigendum to "Impact of cloud-borne aerosol representation on aerosol direct and indirect effects" published in Atmos. Chem. Phys., 6, 4163-4174, 2006

Journal Article · Fri Jan 19 04:00:00 EST 2007 · Atmospheric Chemistry and Physics, 7:293-294

DOI:https://doi.org/10.5194/acp-7-293-2007· OSTI ID:944775

Ghan, Steven J; Easter, Richard C

Ghan and Easter (2006) (hereafter referred to as GE2006) used a global aerosol model to estimate the sensitivity of aerosol direct and indirect effects to a variety of simplified treatments of the cloud-borne aerosol. They found that neglecting transport of cloud-borne particles introduces little error, but that diagnosing cloud-borne particles produces global mean biases of 20% and local errors of up to 40% for aerosol, droplet number, and direct and indirect radiative forcing However, we have recently found that in those experiments we had inadvertently turned off the first aerosol indirect effect. In the radiation module, the droplet effective radius was prescribed at 10 microns rather than related to the droplet number concentration. The second indirect effect, in which droplet number influences droplet collision and coalescence, was treated, so that the simulations produced an aerosol indirect effect, albeit one that is much smaller (about -0.2Wm^-2 for anthropogenic sulfate) than other previous estimates.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 944775
• Report Number(s): PNNL-SA-56217; KP1201010
• Journal Information: Atmospheric Chemistry and Physics, 7:293-294, Journal Name: Atmospheric Chemistry and Physics, 7:293-294 Journal Issue: 2 Vol. 7
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AEROSOLS
ATMOSPHERIC CHEMISTRY
CALCULATION METHODS
CLOUDS
COALESCENCE
CORRECTIONS
ENVIRONMENTAL TRANSPORT
NUCLEATION
SENSITIVITY