20050210: 20050209: [Fwd: LDM Question]

Harry,

You can pull NGRID from idd.unidata.ucar.edu.
NWS has moved the final transition phase back to 3/31,
so it is still somewhat "test" state.

Steve Chiswell


>From: Harry Edmon <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200502102213.j1AMDKv2015991

>Is the NGRID feed available?
>
>Unidata Support wrote:
>
>>Harry,
>>
>>Yes, the CONDUIT file name conventions are provided here:
>>http://my.unidata.ucar.edu/content/data/conduit/ldm_idd/index.html
>>
>>
>>However, the quetion you have below asks about the 12km grid #218 that isn't 
>>on CONDUIT at this time. A subset is available in the HDS feed in grib1 forma
> t
>>(until NWS removes this duplicate data in March/April per their ADMIN notice)
> .
>>The 12km grids are availabel on the DVB-S Noaaport in GRIB2 format
>>(which we are putting into the NGRID) feed.
>>
>>The fields between the "!" characters will give the parameter names
>>(per the wgrib convention) and can be used to select the UWVN and VWND
>>grids (as would the TTAAII (T2) field of the WMO header for Noaaport.
>>
>>In the case the the ETA 12km grib2 grids on the tgftp server
>>in the ST.opnt directory, you will find that U & V are packed into
>>a single grib message. 
>>
>>Steve Chiswell
>>Unidata User Support
>>
>>
>>
>>  
>>
>>>From: Harry Edmon <address@hidden>
>>>Organization: UCAR/Unidata
>>>Keywords: 200502092224.j19MOHv2022461
>>>    
>>>
>>
>>  
>>
>>>This is a multi-part message in MIME format.
>>>--------------050007060008040103010405
>>>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>>Content-Transfer-Encoding: 7bit
>>>
>>>Is there a place that describes the headers/keys for the CONDUIT feed 
>>>products?
>>>
>>>
>>>--------------050007060008040103010405
>>>Content-Type: message/rfc822;
>>>name="LDM Question"
>>>Content-Transfer-Encoding: 7bit
>>>Content-Disposition: inline;
>>>filename="LDM Question"
>>>
>>>Return-Path: <address@hidden>
>>>Received: from castor.3tiergroup.com (yssb.e0.border5s.pnap.net [206.253.195
> .2
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>>>From: "Mark MacIver" <address@hidden>
>>>To: "'Harry Edmon'" <address@hidden>
>>>Cc: "'David Ovens'" <address@hidden>
>>>Subject: LDM Question
>>>Date: Wed, 9 Feb 2005 12:58:44 -0800
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>>>
>>>Harry/David,
>>>          Using the LDM, can I only get a couple fields(parameters) from a
>>>grib file e.g. u and  v from the 12km eta? I would like to only download
>>>part of the 12km Eta to save on bandwidth. Can this be done? - Thank you  -
>>>Mark
>>>
>>>
>>>--------------050007060008040103010405--
>>>
>>>    
>>>
>>--
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