HR: 1340h
AN: A53C-1339    [Abstracts]
TI: The Sources and Transport of South American Dust
AU: * Li, F
EM: fuyuli@princeton.edu
AF: Program in Atmospheric and Oceanic Sciences, Princeton University, GFDL, 201 Forrestal Road, Princeton, NJ 08540, United States
AU: Ginoux, P
EM: paul.ginoux@noaa.gov
AF: Geophysical Fluid Dynamics Laboratory, NOAA, GFDL, 201 Forrestal Road, Princeton, NJ 08540, United States
AU: Ramaswamy, V
EM: v.ramaswamy@noaa.gov
AF: Geophysical Fluid Dynamics Laboratory, NOAA, GFDL, 201 Forrestal Road, Princeton, NJ 08540, United States
AB: South America is regarded as a principal source for the dust deposited in the Southern Ocean and Antarctica, but there are conflicting modeling and observational evidences of the dust activity in this region. We use the new MODIS Deep Blue retrievals of aerosol properties over land, implemented by observations from other satellites, to identify the locations, the natural and anthropogenic origin, the local land and meteorological characteristics, and evaluate the relative importance of these dust sources in South America. Specific dust events originating from South America are recognized and the dust plumes are tracked by using a combination of ground measurement, satellite observations, and model analysis to see how far dust can be transported into the Southern Ocean and Antarctica.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting