Stratospheric Aerosol and Gas Experiment II - SAGE II - Status

Status

More information about the data is available at the SAGE II web site at NASA Langley Research Center. The up-to-date data should be retrieved from there, although we will give access to authorised users who wish to browse the data. Data continues to be added to the data set.

• March 2005: Version 6.2 data available from BADC.
  
• October 2003: Version 6.2 data are available from Langley.
  The update from 6.1 to 6.2 rectifies an altitude registration problem, and there is an improvement to the water vapour product. More information about these data is available at the SAGE II Version 6.2 web site at NASA Langley Research Center.
• July 2000: a problem with the azimuth gimbal system occurred. This was corrected and operations resumed at a lower level in November 2000.
• Version 6.1 data are available from October 1984 through July 2000, in the form of index files and spec files, with software to assist processing in IDL. The software routines can be retrieved from the BADC site, on request.
• Version 1 contained SAGE II monthly mean global color image maps and the relevant gridded data for aerosol extinction at 1020 nm, 525 nm, 453 nm and 385 nm wavelength, ozone mixing ratio, water vapor mixing ratio and relative humidity, nitrogen dioxide mixing ratio at up 14 pressure levels, for the period January 1985 to December 1993. Available on a CD-ROM.
• Because the original SAGE II measurements are made at geometrical heights, meteorological data from the National Meteorological Center (NMC) were used to determine the actual pressure heights for the SAGE II profile data and also have been used to calculate the relative humidity. For easy reference, the NMC atmospheric temperature, geometrical altitude and tropopause data used in the determination of SAGE II data are also included. Users of this CD-ROM image/data products need to be aware that these meteorological data are not measured by the SAGE II instrument itself.

Who to Contact

For general queries about these pages or about browsing the data, you should contact the BADC support line.