HR: 0800h
AN: A41B-03    [Abstracts]
TI: Quantifying the Impact of Dust on Tropical Atlantic Ocean Temperatures
AU: * Evan, A T
EM: amatoevan@ssec.wisc.edu
AF: Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin at Madison, United States
AU: Bennington, V
EM: benesh@wisc.edu
AF: Department of Atmospheric and Oceanic Sciences, University of Wisconsin at Madison, United States
AU: Bennartz, R
EM: bennartz@aos.wisc.edu
AF: Department of Atmospheric and Oceanic Sciences, University of Wisconsin at Madison, United States
AU: Corrada-Bravo, H
EM: hcorrada@cs.wisc.edu
AF: Department of Computer Sciences, University of Wisconsin at Madison, United States
AU: Heidinger, A K
EM: heidinger@ssec.wisc.edu
AF: Office of Research and Applications, NOAA/NESDIS, United States
AU: Mahowald, N
EM: mahowald@ucar.edu
AF: National Center for Atmospheric Research, National Center for Atmospheric Research, United States
AU: Velden, C S
EM: chris.velden@ssec.wisc.edu
AF: Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin at Madison, United States
AB: This presentation will focus on linking sea surface temperature changes in the Atlantic with African dust activity through the radiative forcing associated with these plumes as they traverse the Atlantic. We will demonstrate that periods of cooler ocean temperatures are likely reinforced by radiative feedbacks associated with a coincident increase in dust activity. To do this we analyze 25 years of observations of aerosol optical thickness from the Advanced Very High Resolution Radiometer, climatological maps of mixed layer depths, and cloud diurnal cycles. While many factors alter Atlantic ocean temperatures, we aim to demonstrate that quantifying the sea surface temperature forcing by aerosols is needed to fully understand the interannual and multidecadal changes observed across the basin.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 1640 Remote sensing (1855)
DE: 3374 Tropical meteorology
SC: Atmospheric Sciences [A]
MN: 2007 Joint Assembly