[gradsusr] Help locating GFS Data?

[Rick Mann]

Wow. Nevermind. I just found it. Forest-for-the-trees kind of thing, perhaps.

	http://nomads.ncep.noaa.gov:9090/dods/gfs_hd

-- 
Rick

On Apr 7, 2011, at 11:34 , Rick Mann wrote:

> Hi. I apologize if I'm not on the right list. I had a heckuva time find anywhere at all to inquire about this.
> 
> I'm trying to get GFS wind velocity data for use in predicting balloon flight paths. I have some code that uses GFS data provided by NOAA accessed via NDAP:
> 
> 	"We use GFS data provided by the NOAA, accessed via NDAP and
> 	their [NOMADS](http://nomads.ncep.noaa.gov) distribution system. The
> 	[1.0x1.0 degree data](http://nomads.ncep.noaa.gov/txt_descriptions/GFS_high_resolution_doc.shtml)
> 	(26 vertical pressure levels) is used for standard predictions,
> 	and the [0.5x0.5 degree data](http://nomads.ncep.noaa.gov/txt_descriptions/GFS_half_degree_doc.shtml)
> 	(47 vertical pressure levels) is used for the high definition (HD) predictions."
> 
> I can easily find current data in .grb format, but the only stuff I can find accessible via NDAP is no newer than 2010-04:
> 
> 	http://nomads.ncdc.noaa.gov:80/dods/NCEP_GFS
> 
> My main question is: where do I find NDAP access to current GFS data?
> 
> A secondary question is, what data format does this code expect, and how do I convince the NDAP server to give that to me?
> 
> Sadly, the code I'm using doesn't give any more specific instruction on how to get the wind data than the bit I quoted above. I can tell, by inspecting the code, that it's looking for data in a text file with five comma-separated lines defining a header, comment lines that begin with '#', and subsequent lines that vary. I don't know what the format is called. Here's a bit of it:
> 
> header (lat, lat rad, lon, lon rad, time)
> numAxes
> axisData1
> axisData2
> axisData3
> ...
> 
> 
> Thanks so much!
> 
> -- 
> Rick
> 
> 
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