Hi Marcos, Pauline,
I'm not seeing any CRS elements in the GetCapabilities document at this
link:
http://limia.meteogalicia.es/thredds/wms/modelos/WRF/diario/20090331/wrf_arw_det_20090331_36km_00Z_1d.nc?service=WMS&version=1.3.0&request=GetCapabilities
I just talked to Jeff, one of the IDV developers, and that seems to be
the problem the IDV is tripping over (though he just added code to
default to "CRS:84" if none is found). I'm guessing that is the problem
Marcos saw for the other WMS clients as well.
I'm wondering if the projection is getting lost somehow for this
dataset. The project is Lambert Conformal, here's the OPeNDAP DAS
snippet for the projection variable:
Lambert_Conformal {
String grid_mapping_name "lambert_conformal_conic";
Float64 longitude_of_central_meridian -14.100000381469727;
Float64 standard_parallel 43.0, 43.0;
Float64 latitude_of_projection_origin 24.22800064086914;
Float64 false_easting 2182.62935;
Float64 false_northing -269.65597;
}
The netCDF-Java library, so ToolsUI (as Marcos mentioned) and IDV,
recognize the grid. Though whether they use the projection information
or the lat/lon variables isn't clear.
I'm not going to be able to dig into this any further until at least end
of next week. Pauline, Jon, I'm wondering (from my hazy understanding of
the ncWMS code) if the projection somehow fails to get mapped into a CRS
that GeoTools recognizes and it then does not default to try the lat/lon
grid that is also given in the dataset.
Ethan
Pauline Mak wrote:
> Hi Marco,
>
> I've downloaded the file and ran it with the latest version of TDS. The
> GetCapabilities XML generated has been attached - it does included the
> CRS (and I also tried 1.1.1, and that gave me a list of SRS). Perhaps
> you can give this a try? Google Earth was able to find all the layers
> and palettes.
>
> I've also tried to apply a GetMap request to the downloaded file, but
> that's giving me a 500 error:
>
> java.lang.ArrayIndexOutOfBoundsException: 0
> at ucar.ma2.Index.setDim(Index.java:562)
> at ucar.ma2.Index.set(Index.java:651)
> at
> uk.ac.rdg.resc.ncwms.datareader.DataChunk.getValue(DataChunk.java:67)
> at
> uk.ac.rdg.resc.ncwms.datareader.DefaultDataReader.populatePixelArray(DefaultDataReader.java:209)
>
> .....
>
> I'll keep investigating and let you know if I find why this is so :)
>
> Cheers,
>
> -Pauline.
>
> Marcos Hermida wrote:
>> Hi Pauline, Ethan!
>> I've opened the netCDF files with the toolsUI and the data is
>> recognized as gridded data and is displayed perfectly. I also tried
>> with the IDV via OPeNDAP and it worked fine as well.
>> The fileServer isn't enabled for all datasets because many of them are
>> aggregations.
>> Usually, our models' daily outputs have one file per forecast day and
>> grid and we have set up (or at least tried it :-) ) two kind of
>> aggregations:
>> one in each daily output aggregating all the forecast day files in one
>> single dataset per grid and the other aggregates all the daily
>> outputs with the same forecast offset (only offset 0 so far) for each
>> grid.
>> For the WRF daily outputs I've changed the catalog, so now all the
>> files are available via fileServer:
>> http://limia.meteogalicia.es/thredds/catalog/modelos/WRF/diario/catalog.html
>>
>> You can also download the WW3 files:
>> http://limia.meteogalicia.es/thredds/catalog/modelos/WW3/test/catalog.html
>>
>>
>>
>> Thanx!!
>>
>> Pauline Mak wrote:
>>> Hi Marco,
>>>
>>> I was able to load your URL - seems like the GetCapabilities XML
>>> document doesn't contain coordinate systems. I can't seem to
>>> download any of the files... if you can either email me one of them,
>>> or enable fileServer, then I can download one to take a better look.
>>>
>>> Thanks,
>>>
>>> -Pauline.
>>>
>>> Ethan Davis wrote:
>>>> Hi Marcos,
>>>>
>>>> I'm getting a 500 response from the URL you gave. So, I wasn't able to
>>>> look at your data.
>>>>
>>>> One quick suggestion, make sure your data is recognized as gridded data
>>>> by the netCDF-Java library. You can test that with the ToolsUI
>>>> (available from the netCDF-Java home page). Try opening your data file
>>>> in the "FeatureTypes/Grids" tab of ToolsUI.
>>>>
>>>> Or, if the data is available from the TDS via OPeNDAP, try opening that
>>>> in the IDV (not through the WMS interface). Or you could open it as a
>>>> local file.
>>>>
>>>> Regards,
>>>>
>>>> Ethan
>>>>
>>>> Marcos Hermida wrote:
>>>>> Hi all!
>>>>> I've recently installed the latest version of TDS (4.0.23) and set up
>>>>> some catalogs ( http://limia.meteogalicia.es/thredds/ )
>>>>> When I tried to display some data with IDV through WMS I got a message
>>>>> which says "No compatible SRS found". I've also tried it with
>>>>> other GIS clients (QGIS, GoogleEarth, ArcView) and I got similar
>>>>> messages.
>>>>> I think it might be that in the capabilities xml document delivered in
>>>>> the getCapabilities request the SRS (WMS version 1.1.0) or CRS (WMS
>>>>> version 1.3.0) tags are missing so the GIS clients are unable to
>>>>> render
>>>>> the maps or there is something wrong with our datasets?
>>>>>
>>>>>
>>>>> Thanx!
