"Classic" NMC Global Analyses - Comments

It is worth noting two points about this data. The temperature sent by the NMC is virtual temperature, this was corrected to temperature when the tapes were generated. However, the NMC sets RH to zero above 300 MB, therefore the temperature at those levels is unchanged from the data sent by the NMC.

Missing data:
This dataset presented interesting problems in that there were numerous times for which data was missing. This made using the dataset somewhat problematical over long periods of time. Thus a decision was made to fill the missing days with data from a similar dataset. The dataset chosen was the ECMWF WCRPII dataset, information on that dataset is also available from this catalog.

Year Volume Times Notes
1987 NT428701A Jan01-Jan15 03-00, 03-12, 05-12, 06-12 replaced
  NT428701B Jan16-Jan31 24-00, 24-12 replaced
  NT428702A Feb01-Feb15 07-00, 07-12 replaced
  NT428702B Feb16-Feb28 28-00, 28-12 replaced
  NT428703B Mar16-Mar31 28-00, 28-12 replaced
  NT428704B Apr16-Apr30 18-00, 18-12 replaced
  NT428706B Jun16-Jun30 20-00, 20-12 replaced
  NT428707B Jul16-Jul31 28-00 replaced
  NT428708B Aug16-Aug31 29-00 through 31-12 replaced
  NT428709A Sep01-Sep15 01-00 through 04-12 replaced
  NT428710B Oct16-Oct31 17-00 through 18-00 replaced
1988 NT428802A Feb01-Feb15 13-00, 15-12 replaced
1989 NT428903B Mar16-Mar31 18-12 replaced
  NT428906A Jun01-Jun15 01-00 replaced
  NT428908A Aug01-Aug15 02-12 replaced
  NT428910A Oct01-Oct15 15-12 replaced
  NT428910B Oct16-Oct31 31-12 replaced
1990 NT429003B Mar16-Mar31 18-12, 25-12 replaced
  NT429004A Apr01-Apr15 11-00, 12-00 through 14-12 replaced
  NT429008A Aug01-Aug15 14-00, 15-00, 15-12 replaced
  NT429008B Aug16-Aug31 16-00 through 18-12 replaced
  NT429009A Sep01-Sep15 15-00 replaced
1991 NT429104A Apr01-Apr15 12-12 replaced
  NT429108A Aug01-Aug15 09-00 replaced
  NT429109A Sep01-Sep15 13-00, 14-12 replaced
1992 NT429201A Jan01-Jan15 04-12, 12-00 replaced
  NT429202B Feb16-Feb29 24-00, 27-12 replaced
  NT429203A Mar01-Mar15 05-00 replaced
  NT429203B Mar16-Mar31 18-00 replaced
  NT429207A Jul01-Jul15 15-12 replaced
  NT429207B Jul16-Jul31 18-12 replaced
  NT429208A Aug01-Aug15 03-00, 05-00 replaced
  NT429208B Aug16-Aug31 16-12 replaced
  NT429209A Sep01-Sep15 13-00 replaced
  NT429209B Sep16-Sep30 20-00 replaced
  NT429210A Oct01-Oct15 05-00, 07-00 replaced
1993 NT429303B Mar16-Mar31 21-12, 27-00, 27-12, 30-12 replaced
  NT429305A May01-May15 01-00, 01-12 replaced
  NT429306A Jun01-Jun15 07-12 replaced
  NT429307A Jul01-Jul15 08-00 replaced
  NT429310B Oct16-Oct31 18-12 replaced
  NT429312B Dec16-Dec31 23-12 replaced
1994 NT429403A Mar01-Mar15 02-12 replaced
  NT429405A May01-May15 07-12 replaced
  NT429407A Jul01-Jul15 14-12 replaced
  NT429408A Aug01-Aug15 12-12 replaced