HR: 1340h
AN: A33A-0855    [Abstracts]
TI: Temporal and Spatial Variability of Aerosol Optical Properties in the UAE
AU: * Eck, T F
EM: teck@ltpmail.gsfc.nasa.gov
AF: GEST/UMBC and NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AU: Holben, B N
EM: bholben@pop900.gsfc.nasa.gov
AF: NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AU: Dubovik, O
EM: dubovik@aeronet.gsfc.nasa.gov
AF: NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AU: Smirnov, A
EM: asmirnov@aeronet.gsfc.nasa.gov
AF: GEST/UMBC and NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AU: Sinyuk, A
EM: asiniuk@ltpmailx.gsfc.nasa.gov
AF: NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AU: Reid, J S
EM: reidj@nrlmry.navy.mil
AF: Marine Meteorology Division, Naval Research Laboratory, 7 Grace Hopper Ave., Stop 2, Monterey, CA 93943-5502 United States
AU: Giles, D
EM: dgiles@aeronet.gsfc.nasa.gov
AF: NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AU: Schafer, J S
EM: joschafe@pop900.gsfc.nasa.gov
AF: NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AU: Sorokin, M
EM: msorokin@aeronet.gsfc.nasa.gov
AF: NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AU: Newcomb, W W
EM: wnewcomb@aeronet.gsfc.nasa.gov
AF: NASA/GSFC, Code 614.4, Greenbelt, MD 20771 United States
AB: In this investigation we analyze measured spectral aerosol optical depth and retrieved aerosol size distributions and spectral single scattering albedo in the United Arab Emirates (UAE) and adjacent Arabian Gulf. A meso-scale network of several ground-based Aerosol Robotic Network (AERONET) sun-sky radiometers in the UAE from August to October 2004 (during the UAE2 field campaign) provides a unique opportunity to examine the spatial distribution and temporal variability of remotely sensed aerosol optical properties. The geographical location of the UAE includes strong regional desert dust aerosol sources, and also strong fine mode pollution particle sources from petroleum and natural gas processing facilities. This variability of atmospheric particle type and size in conjunction with highly variable regional meteorology results in some observations that are dominated by coarse mode desert dust, others dominated by fine mode pollution, and most that are a mixture of the two aerosol types. Retrievals of aerosol size distributions and single scattering albedo are made with a newly improved algorithm assuming spheroid particle shape and with improved earth surface albedo input from MODIS products. This study attempts to quantify aerosol optical properties dynamics in the late summer season in the UAE.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0360 Radiation: transmission and scattering
DE: 3360 Remote sensing
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005