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Aerosol Absorption in the Atmosphere: Perspectives from Global Model, Ground-Based Measurements, and Field ObservationsAerosol absorption in the atmosphere poses a major uncertainty in assessing the aerosol climate effects. This uncertainty arises from the poorly quantified aerosol sources, especially black carbon emissions, and our limited knowledge of aerosol mixing state and optical properties. Here we use a global model GOCART to simulate atmospheric aerosols, including sulfate, black carbon, organic carbon, dust, and sea salt. We compare the model calculated total aerosol optical thickness, extinction, and absorption with those quantities from the ground-based sun photometer measurements from AERONET at several different wavelengths and the field observations from ACE-Asia. We will examine the most sensitive factors in determining the aerosol absorption, and the consequences of assessing the aerosol radiative forcing and atmospheric heating associated with those factors.
Document ID
20040081417
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Chin, Main
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dubovik, Oleg
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Holben, Brent
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Anderson, Tad
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Quinn, Patricia
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Duncan, Bryan
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ginoux, Paul
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: AeroCom Workshop
Location: Ispra
Country: Italy
Start Date: March 10, 2004
End Date: March 12, 2004
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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