HR: 0830h
AN: A51A-05    [Abstracts]
TI: Aerosol and Gases Data Available For Long-term Stratospheric Constituent Studies
AU: * Morris, K L
EM: k.l.morris@larc.nasa.gov
AF: Atmospheric Sciences Data Center, NASA Langley Research Center MS 157D 2 South Wright Street, Hampton, VA 23681-2199 United States
AB: The Atmospheric Sciences Data Center (ASDC) at NASA Langley Research Center archives data from the Stratospheric Aerosol and Gas Experiment (SAGE) I, II, and III and Stratospheric Aerosol Measurement (SAM) II projects. These data span approximately 27 years and can be used to study long term trends of stratospheric constituents such as the effects of volcanic eruptions and changes in ozone levels. The SAGE I, II, and III projects cover the time span February 1979 through the present. These data provide vertical distributions of nitrogen dioxide, ozone, water vapor and aerosols. The SAGE I instrument provided nearly global measurements of aerosol extinction profiles and ozone and nitrogen dioxide concentration profiles using four spectral channels centered at wavelengths of 1000, 600, 450, and 385 nanometers (nm). SAGE II data contain profiles of aerosol extinction at 1020, 525, 453, and 385 nm and contains number density profiles of ozone and nitrogen dioxide. The ASDC continues to receive and archive the SAGE II data. SAGE III collects measurements during both solar and lunar occultation events. Solar event species are water vapor, nitrogen dioxide, ozone, temperature and pressure, and aerosol extinction at wavelengths of 1550, 1019, 868, 754, 676, 596, 521, 448, and 385 nm. Cloud occurrence are also collected during solar events. Lunar event species are chlorine dioxide, nitrogen dioxide, nitrogen trioxide, and ozone. In addition to the SAGE data, the NASA Langley ASDC archives data from the SAM II which contains the vertical distribution of stratospheric aerosols in the polar regions and covers the time span October 1978 through December 1993. These data along with documentation, tools, and read software are available from the NASA Langley ASDC at http://eosweb.larc.nasa.gov.
UR: http://eosweb.larc.nasa.gov
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0340 Middle atmosphere--composition and chemistry
DE: 1610 Atmosphere (0315, 0325)
SC: Atmospheric Sciences [A]
MN: 2005 Joint Assembly