We now believe that we can catch bad tapes. Tapes are now verified after being written. Unfortunately this procedure was not in place when the Oct. and Nov. 1985 tapes were written.
The BAMS CD-ROM may be checked to see if it was affected by the Oct. and Nov. 1985 tape problems. Send comments to firstname.lastname@example.org.
News: we were not able to reproduce the Oct. and Nov. analyses exactly. Any changes in the compiler or hardware can introduces very small numerical differences. (Perhaps it was the change from the Cray Y-MP to the J16.) These differences get into the forecast model and amplify. Rather than have a discontinuity at the end of November 1985, the Bob Kistler has rerun October through December 1985. As a result, the discontinuity will be at the end of the year which is more anticipated.