HR: 0830h
AN: A11E-0022    [PDF]
TI: Aerosol Optical Properties in Southeast Asia From AERONET Observations
AU: * Eck, T F
EM: teck@ltpmail.gsfc.nasa.gov
AF: NASA/ GSFC GEST, NASA/ Goddard Space Flight Center Code 923, Greenbelt, MD 20771 United States
AU: Holben, B N
EM: bholben@pop900.gsfc.nasa.gov
AF: NASA/GSFC, NASA/ Goddard Space Flight Center Code 923, Greenbelt, MD 20771 United States
AU: Boonjawat, J
EM: jariya@start.or.th
AF: Southeast Asia START Regional Center, 5th Floor, Old SWU Pathumwan Building 5 Chulalongkorn University Hert Dunant Road, Pathumwan, Bangkok, 10330 Thailand
AU: Le, H V
AF: Vietnam National Centre for Natural Science and Technology, 18 Hoang Quoc Viet Cau Giay, Hanoi, 30001 Viet Nam
AU: Schafer, J S
EM: joel.s.schafer.1@gsfc.nasa.gov
AF: NASA/GSFC SSAI, NASA/ Goddard Space Flight Center Code 923, Greenbelt, MD 20771 United States
AU: Reid, J S
EM: reidj@nrlmry.navy.mil
AF: Naval Research Laboratory, 7 Grace Hopper Ave., Stop 2, Monterey, CA 93943 United States
AU: Dubovik, O
EM: dubovik@ltpmail.gsfc.nasa.gov
AF: NASA/ GSFC GEST, NASA/ Goddard Space Flight Center Code 923, Greenbelt, MD 20771 United States
AU: Smirnov, A
EM: asmirnov@ltpmailx.gsfc.nasa.gov
AF: NASA/ GSFC GEST, NASA/ Goddard Space Flight Center Code 923, Greenbelt, MD 20771 United States
AB: There is little published data available on measured optical properties of aerosols in the Southeast Asian region. The AERONET project and collaborators commenced monitoring of aerosol optical properties in February 2003 at four sites in Thailand and two sites in Viet Nam to measure the primarily anthropogenic aerosols generated by biomass burning and fossil fuel combustion/ industrial emissions. Automatic sun/sky radiometers at each site measured spectral aerosol optical depth in 7 wavelengths from 340 to 1020 nm and combined with directional radiances in the almucantar, retrievals were made of spectral single scattering albedo and aerosol size distributions. Angstrom exponents, size distributions and spectral single scattering albedo of primarily biomass burning aerosols at rural sites are compared to measurements made at AERONET sites in other major biomass burning regions in tropical southern Africa, South America, and in boreal forest regions. Additionally, the aerosol single scattering albedo and size distributions measured in Bangkok, Thailand are compared with those measured at other urban sites globally. The influences of aerosols originating from other regions outside of Southeast Asia are analyzed using trajectory analyses. Specifically, cases of aerosol transport and mixing from Southern China and from India are presented.
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0345 Pollution--urban and regional (0305)
DE: 0360 Transmission and scattering of radiation
DE: 0368 Troposphere--constituent transport and chemistry
DE: 3360 Remote sensing
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting