[mapserver-users] GFS GRIB data in MS

[Smith, Michael ERDC-CRREL-NH]

Dimitrios,

I think using a new feature that is coming into MapServer is the way.
MapServer will be supporting vector data like you have. See
http://mapserver.org/trunk/development/rfc/ms-rfc-78.html

Mike

-- 
Michael Smith

US Army Corps
Remote Sensing GIS/Center



On 1/14/12 10:34 AM, "bluecap" <mimis.simos at gmail.com> wrote:

>Hello list,
>
>I'm developing an aeronautical & flight planning webGIS with MS 6,
>Openlayers & Postgres. Although I have found my way in displaying
>aeronautical information (navaids/airways/areas/metars/wind barbs etc)
>with
>the valuable help of this list, I'm now in the process of displaying winds
>aloft (winds at various pressure levels), and would like to ask if the
>workflow I've come up to makes sense (and if anyone has some better
>ideas...).
>
>The wind data will be taken from grib files through NOAA (GFS model). The
>problem is that the wind data are composed of two variables, the east-west
>and the north-south velocities, which must be combined to provide the
>final
>wind data (eg wind from 330 degrees, 25 knots). I have found the (simple)
>trigonometry to do this part.
>
>Now, the workflow I'm thinking is as follows:
>1) download the grib file of the specific date and forecast depth from
>NOMADS to my local HD (approx. 30MB)
>2) convert it to a shapefile, with the command line app "degrib" from NOAA
>3) dump it to Postgres
>4) perform the calculation for every wind point
>5) store the wind barb character to the DB (in order to have a small layer
>in the mapfile, I take the barb as a character stored in the DB, along
>with
>its angle, and draw it - works very well in my metars)
>
>The million-dollar question concerns steps 1 and 2. Has anybody done this
>before in a different way to provide me with some pointers?
>
>Thank you
>Dimitrios Simos
>
>--
>View this message in context:
>http://osgeo-org.1803224.n2.nabble.com/GFS-GRIB-data-in-MS-tp7187741p71877
>41.html
>Sent from the Mapserver - User mailing list archive at Nabble.com.
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