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

Re: Problems with GRIB feature collections



Greetings Roy,

Sorry for the delay - I've been in a teleconference all morning.

So the TDS may be picking up on the fact that some of those records
are encoded as forecasts. That's possible, and I'll keep that in mind.

The xml snippet should look like this (change made to first line to add TwoD):

<gribConfig datasetTypes="TwoD Best LatestFile">
    <pdsHash>
        <useTableVersion>false</useTableVersion>
    </pdsHash>
</gribConfig>

Cheers,

Sean

On Wed, Dec 6, 2017 at 11:05 AM, Roy Mendelssohn - NOAA Federal
<address@hidden> wrote:
> BTW - I should add that the 1-degree data is a special run that they do for 
> us,  and the way I understand it in their processing terms the 00 and 12 
> files are considered real-time,  while the 06 and 18 files are considered 
> "forecasts".  They have different filenames because of that, for example:
>
> US058GMET-GR1mdl.0018_0240_00000F0RL2017120400_0102_000000-000000pres
> US058GMET-GR1mdl.0018_0240_00000F0OF2017120418_0102_000000-000000pres
>
> That is why in the regex for the time I have to skip two spaces.  In case 
> this info helps any:
>
> wgrib -V US058GMET-GR1mdl.0018_0240_00000F0RL2017120400_0102_000000-000000pres
> rec 1:21:date 2017120400 PRMSL kpds5=2 kpds6=102 kpds7=0 levels=(0,0) 
> grid=240 MSL anl:
>   PRMSL=Pressure reduced to MSL [Pa]
>   timerange 0 P1 0 P2 0 TimeU 1  nx 360 ny 181 GDS grid 0 num_in_ave 0 
> missing 0
>   center 58 subcenter 0 process 18 Table 2 scan: WE:SN winds(N/S)
>   latlon: lat  -90.000000 to 90.000000 by 1.000000  nxny 65160
>           long 0.000000 to -1.000000 by 1.000000, (360 x 181) scan 64 mode 
> 128 bdsgrid 1
>   min/max data 95236 104736  num bits 10  BDS_Ref 9523.6  DecScale -1 
> BinScale 0
>
> wgrib -V US058GMET-GR1mdl.0018_0240_00000F0OF2017120418_0102_000000-000000pres
> rec 1:0:date 2017120418 PRMSL kpds5=2 kpds6=102 kpds7=0 levels=(0,0) grid=240 
> MSL anl:
>   PRMSL=Pressure reduced to MSL [Pa]
>   timerange 0 P1 0 P2 0 TimeU 1  nx 360 ny 181 GDS grid 0 num_in_ave 0 
> missing 0
>   center 58 subcenter 0 process 18 Table 3 scan: WE:SN winds(N/S)
>   latlon: lat  -90.000000 to 90.000000 by 1.000000  nxny 65160
>           long 0.000000 to -1.000000 by 1.000000, (360 x 181) scan 64 mode 
> 128 bdsgrid 1
>   min/max data 94770 104260  num bits 10  BDS_Ref 9477  DecScale -1 BinScale 0
>
>
> BTW - Note the different table,  which is why I have include in the xml the 
> stuff about:
>
>            <pdsHash>
>               <useTableVersion>false</useTableVersion>
>            </pdsHash>
>
>
> Thanks,
>
> -Roy
>
>
>> On Dec 6, 2017, at 6:09 AM, Sean Arms <address@hidden> wrote:
>>
>> For the second question regarding "full" vs "best", this has to do with how 
>> the overall collection is aggregated. For the half-degree NAVGEM, you have 
>> monthly collections of grids, but none of the forecasts overlap. Therefore, 
>> the overall collection aggregation exposes all of the grids. For the one 
>> degree, it looks like the TDS thinks there was an overlap in the grids (i.e. 
>> two grids with the same valid time), and so one of the overlapped grids was 
>> "better" (i.e. closer to a runtime) and the other was dropped to make a 
>> "best" collection. However, I don't see that happening in any of the monthly 
>> collections listed, so it is probably a bug. In the xml for these two 
>> collections, can you add "TwoD" to the datasetTypes attribute of the 
>> gribConfig element? That will give us a bit more information.
>>
>
> **********************
> "The contents of this message do not reflect any position of the U.S. 
> Government or NOAA."
> **********************
> Roy Mendelssohn
> Supervisory Operations Research Analyst
> NOAA/NMFS
> Environmental Research Division
> Southwest Fisheries Science Center
> ***Note new street address***
> 110 McAllister Way
> Santa Cruz, CA 95060
> Phone: (831)-420-3666
> Fax: (831) 420-3980
> e-mail: address@hidden www: http://www.pfeg.noaa.gov/
>
> "Old age and treachery will overcome youth and skill."
> "From those who have been given much, much will be expected"
> "the arc of the moral universe is long, but it bends toward justice" -MLK Jr.
>


NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.