25 March 2013

Switched web services to python & php. Should be transparent to user.

13 September 2007

Switched web services to python & spyce. Should be transparent to user.

07 September 2007

Ported to 64-bit architecture.

04 January 2007

I/O ported to GEMPAK v5.9.4 and GRIB2.

31 January 2006

Ported plotting scripts to Matlab v7 (R14.3); slightly larger plots.

07 October 2005

Switched to GFS 0.5 degree gridded fields. Streamlined scripts for plotting.

29 July 2004

First major changes to date: potential vorticity is now computed in spherical harmonics, which fixes bogus tropopause parameter values near the poles; arctic potential temperature and pressure pages were added to study features at high latitudes; map borders were made darker; lat/lon labels were eliminated.