HR: 16:35h
AN: A54A-03    [Abstracts]
TI: Characteristics of Atmpspheric Aerosols Over the United Arab Emirates
AU: * Piketh, S J
EM: stuart@crg.bpb.wits.ac.za
AF: Climatology Research Group, University of the Witwatersrand Private Bag 3 WITS, Johannesburg, Gau 2050 South Africa
AU: Ross, K
EM: kristy@crg.bpb.wits.ac.za
AF: Climatology Research Group, University of the Witwatersrand Private Bag 3 WITS, Johannesburg, Gau 2050 South Africa
AU: Reid, J
EM: reidj@nrlmry.navy.mil
AF: Naval Research Laboratory, Marine Meteorology Division 7 Grace Hopper Ave., Stop 2, Monterey, CA 93943-5502 United States
AU: Bruintjes, R
EM: roelof@ncar.gov
AF: National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 80301 United States
AU: Eck, T
EM: teck@aeronet.gsfc.nasa.gov
AF: Goddard Space Flight Center, Branch Code 913, Greenbelt, MD 20771
AU: Mandoos, A
EM: AMandoos@almiyah.gov.ae
AF: Department of Atmospheric Studies, Abu Dhabi, Abu Dhabi, 0000 United Arab Emirates
AB: Aerosols remain a major uncertainty in our understanding of atmospheric climate forcing processes. Aerosols are highly variable in both time and space due to their relatively short atmospheric life time. Natural and anthropogenic aerosols are emitted and transported to the United Arab Emirates to make up a diverse, mixed atmospheric aerosol composition with interesting impacts on cloud and radiation processes. Airborne and ground based measurements have been made over the UAE during the United Arab Emirates Unified Aerosol Experiment (UAE2) using a Passive Cavity Aerosol Spectrometer Probe (PCASP) and CIMEL Sun Photometers, respectively. Data have also been collected over several seasons in the UAE to characterize the differences between summer and winter. The atmosphere over the UAE is well structured with several distinctive layers of atmospheric stability forming bands of aerosols. The aerosol size distributions have been measured by the PCASP and derived from the Sun Photometer Data. The aerosols are generally well mixed with both fine (anthropogenic) and coarse (dust) aerosols contributing in a significant manner to the total aerosol loading. The Spatial and temporal variation in aerosol characteristics will be explored in this paper. In addition atmospheric transport of aerosols to and from the UAE region will be explored.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005