[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[IDV #SYQ-598598]: IDV 2.7b2: GFS analyses and forecasts: faulty times

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [IDV #SYQ-598598]: IDV 2.7b2: GFS analyses and forecasts: faulty times
  • Date: Tue, 23 Jun 2009 10:51:58 -0600
Hi Dave-

> Boy, without specifically consulting some documentation somewhere
> (when in doubt, read the instructions?), I'm not sure I would ever
> have figured that out!

The docs in the catalog are wrong for this entry.  I've submitted a support 
request to the THREDDS group to have it updated.  Right now it reads:

NCEP GFS Model : AWIPS 228 (A) Grid. Global Lat/Lon grid. Model runs are made 
at 0, 6, 12, and 18Z, with forecasts hourly from 22 to 32 hours, then every 12 
hours from 192 to 384 hours (8 to 16 days). Horizontal= 73 by 144 points, 
resolution 2.5 degree, Lat/Lon projection. Vertical = 1000 to 100 hPa mandatory 
pressure levels (10 levels); surface, height above ground, pressure layers. 

At least the last part is right (192-384). ;-)

> >> Having a GFS global analysis available for 8 days in the future could
> >> make me rich, but somehow I think there's a catch. A problem reading
> >> the GFS GRIB2 files?
> >
> > Time to get rich! ;-)
> 
> Unfortunately, the starting point of the 2.5 degree 8-16 day forecast
> is still just a forecast, not an analysis. Some people get rich on
> fantasies, but .... hey, maybe that's true in the weather forecasting
> world, too!

Bet on those futures!

Don

Ticket Details
===================
Ticket ID: SYQ-598598
Department: Support IDV
Priority: Normal
Status: Closed