Data availability and file formatThe data are held on CD-ROM at the BADC and are available for browsingpurposes.If you want to use the data in earnest you should order a copy of the CD from one of the contact addresses listed below. All files within this release are standard MS-DOS ASCII files with variable lengthrecords. In general, the file naming convention uses a two-character prefix to identify the measurement, followed by a six digit number (yymmdd) giving the year, month, and day (UT) of the flight, balloon launch, or modelresult. To identify the measurement platform, a three character extensionof EA1, DA1, Bhh, or Ghh is used to denote the data is from the ER-2,DC-8, balloon, or grid point model output (hh denotes the UT hour ofballoon launch or model result). Exceptions to this convention are theSFyymmdd.Enn files which use the extensions E00, E01, E05, E30 to denoteaerosol loading factors; the TOMS data files which have the extensions N7; and the chemical modelling result MA911006.H00.