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Re: [thredds] Retrieve THREDDS metada from the NetCDF file

  • To: Rich Signell <rsignell@xxxxxxxx>
  • Subject: Re: [thredds] Retrieve THREDDS metada from the NetCDF file
  • From: Kristian Sebastián <ksebastian@xxxxxxxx>
  • Date: Thu, 8 Mar 2012 14:56:55 +0100
Hi Rich,

Actually, our Thredds thredds.socib.es have the ncISO services enable.
So, I think the ncISO doesn't add  "Time coverage", "Geospatial coverage"
and "variables" metadata (link to the dataset example
http://thredds.socib.es/thredds/catalog/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/catalog.html?dataset=mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc
):

> Catalog
> http://thredds.socib.es/thredds/catalog/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/catalog.html
>  Dataset:
> L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc
>
>    - *Data size: *1.298 Mbytes
>    - *Data type: *STATION
>    - *ID: *
>    
> mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc
>
> Access:
>
>    1. *OPENDAP:*
>    
> /thredds/dodsC/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc<http://thredds.socib.es/thredds/dodsC/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc.html>
>    2. *HTTPServer:*
>    
> /thredds/fileServer/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc<http://thredds.socib.es/thredds/fileServer/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc>
>    3. *NCML:*
>    
> /thredds/ncml/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc<http://thredds.socib.es/thredds/ncml/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc>
>    4. *UDDC:*
>    
> /thredds/uddc/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc<http://thredds.socib.es/thredds/uddc/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc>
>    5. *ISO:*
>    
> /thredds/iso/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc<http://thredds.socib.es/thredds/iso/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc>
>
> Dates:
>
>    - 2012-03-08 13:20:02Z *(modified)*
>
> Properties:
>
>    - viewer = "
>    http://www.socib.es/jwebchart/webncdump/?file={url},webncdump";
>    - viewer2 = "http://www.socib.es/jwebchart/?file={url},jwebchart";
>
> Viewers:
>
>    - NetCDF-Java ToolsUI 
> (webstart)<http://thredds.socib.es/thredds/view/ToolsUI.jnlp?catalog=http://thredds.socib.es/thredds/catalog/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/catalog.xml&dataset=mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc>
>    - 
> webncdump<http://www.socib.es/jwebchart/webncdump/?file=http://thredds.socib.es/thredds/dodsC/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc>
>    - 
> jwebchart<http://www.socib.es/jwebchart/?file=http://thredds.socib.es/thredds/dodsC/mooring/oceanographic_buoy/buoy_bahiadepalma-ime_buoy001/L1/dep0003_buoy-bahiadepalma_ime-buoy001_L1_latest.nc>
>
>
But, we have configured a Forecast Model Run (
http://thredds.socib.es/thredds/catalog/operational_models/oceanographical/hydrodynamics/model_run_aggregation/wmed/catalog.html?dataset=operational_models/oceanographical/hydrodynamics/model_run_aggregation/wmed/wmed_best.ncd)
Collection following the Feature Collection
Tutorial<http://www.unidata.ucar.edu/projects/THREDDS/tech/tds4.2/tutorial/FeatureCollectionsTutorial.html>.
As you can see, the  "TimeCoverage", "GeospatialCoverage" and "Variables"
metadata is displayed.

> Variables:
>
>    - *Vocabulary* [CF-1.0]:
>       - *dens* = *potential density* = sea_water_potential_density (kg
>       m-3)
>       - *salt* = *salinity* = sea_water_salinity
>       - *temp* = *potential temperature* =
>       sea_water_potential_temperature (Celsius)
>       - *u* = *u-momentum component* = eastward_sea_water_velocity (meter
>       second-1)
>       - *ubar* = *vertically integrated u-momentum component* =
>       barotropic_eastward_sea_water_velocity (meter second-1)
>       - *v* = *v-momentum component* = northward_sea_water_velocity
>       (meter second-1)
>       - *vbar* = *vertically integrated v-momentum component* =
>       barotropic_northward_sea_water_velocity (meter second-1)
>       - *zeta* = *free-surface* = sea_surface_height_above_sea_level
>       (meter)
>
> GeospatialCoverage:
>
>    - *Longitude: *-5.8 to 9.2 degrees_east
>    - *Latitude: *34.9 to 44.70621220623353 degrees_north
>
> TimeCoverage:
>
>    - *Start: *2012-03-06 00:00:00Z
>    - *End: *2012-03-10 00:00:00Z
>    - *Duration: *4.0 days
>
> So, I don't know why the metadata is displayed in the feature collections
and not in the other datasets.

Thanks

El 8 de marzo de 2012 14:02, Rich Signell <rsignell@xxxxxxxx> escribió:

> Kristian,
> Check out the NcISO service  -- I bet this can do what you want:
> http://www.ngdc.noaa.gov/eds/tds/
>
> -Rich
> 2012/3/8 Kristian Sebastián <ksebastian@xxxxxxxx>
>
>> Hi,
>>
>> I would like to add "Time coverage", "Geospatial coverage" and
>> "variables" metadata to our data sets.
>> I have looked for at the TDS documention, but I think isn't possible to
>> retrieve the metadata values from NetCDF file (global attributes like
>> time_coverage_start, time_coverage_start, ...). I exists, Could you tell me?
>>
>> Thanks
>>
>> --
>>
>>  Kristian Sebastian Blalid
>> SOS Division: Data Center Technical
>> Tel: 971439860 - Fax: 971439979
>> E-mail: kristian.sebastian@xxxxxxxx <sonia.gomara@xxxxxxxx> /
>> kristian.sebastian@xxxxxx <sonia.gomara@xxxxxx>
>>
>>
>>
>> _______________________________________________
>> thredds mailing list
>> thredds@xxxxxxxxxxxxxxxx
>> For list information or to unsubscribe,  visit:
>> http://www.unidata.ucar.edu/mailing_lists/
>>
>
>
>
> --
> Dr. Richard P. Signell   (508) 457-2229
> USGS, 384 Woods Hole Rd.
> Woods Hole, MA 02543-1598
>
>


-- 

 Kristian Sebastian Blalid
SOS Division: Data Center Technical
Tel: 971439860 - Fax: 971439979
E-mail: kristian.sebastian@xxxxxxxx <sonia.gomara@xxxxxxxx> /
kristian.sebastian@xxxxxx <sonia.gomara@xxxxxx>

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