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[Datastream #BBN-975530]: gridded netcdf wind data (gfs, gasp)
- Subject: [Datastream #BBN-975530]: gridded netcdf wind data (gfs, gasp)
- Date: Tue, 11 May 2010 11:08:20 -0600
> Hi Jeff,
>
> I finally had a chance to have a look at the netcdf I downloaded last week.
> There are two main issues I found with the WW3 data – and another with the
> gfs data:
>
> 1) The wind data within the Wavewatch model output section appears to be wind
> output by WW3 - rather than gfs wind input (i.e. WW3 wind rather than gfs
> wind). I require the latter (preferably with the U-/V-wind components at 10 m
> above sea level).
Yes, if you want GFS winds, it is best to get them from the GFS :)
> 2) I only seem to be able to download WW3 wind data covering the last 2
> months. I would need, however, data going as far back as 2008/2007.
We are not an archive center, we maintain a rolling archive to fill in gaps due
to network glitches or hardware failures.
>
> 3) I had a quick look at the gfs section as well to see whether they contain
> the required data in netcdf – and whether they go further back in time, which
> unfortunately was not the case (only 2 months of data as well).
> Gfs does contain U- and V-components of wind at 10m but they are not viewable
> (at least not in "ferret"). I wonder if this is due to the variable name: any
> variable name without a hyphen is viewable, all others (unfortunately
> including all wind data) are not.
That is the naming convention, we do not change it...
>
> Is there a location where I can access gfs data going back a few years? I did
> try to put in dates beyond the last 2 months (with both WW3 and gfs data),
> but the downloaded data is still always shown with a date of the last 2
> months.
Yes, please try either:
NCDC NOMADS Server
http://nomads.ncdc.noaa.gov/
NCEP's NOMADS Server
http://nomad5.ncep.noaa.gov/
>
> Cheers,
> Jasmine
>
Cheers,
Jeff
Jeff Weber
Unidata User Support
http://www.unidata.ucar.edu
Ticket Details
===================
Ticket ID: BBN-975530
Department: Support Datastream
Priority: Normal
Status: Open