Re: [thredds] Thredds Opendap Dataset Access Form "Get as NetCDF"

• To: thredds@xxxxxxxxxxxxxxxx
• Subject: Re: [thredds] Thredds Opendap Dataset Access Form "Get as NetCDF"
• From: Ethan Davis <edavis@xxxxxxxxxxxxxxxx>
• Date: Mon, 23 Aug 2010 12:59:08 -0600

Hi Derrick,

The THREDDS Data Server (TDS) does not support a "Get as netCDF" option
on the OPeNDAP Dataset Access Form. However, it does support a separate
NetCDF Subset Service (NCSS). Here is an example NCSS page for a dataset
on one of our servers:

http://motherlode.ucar.edu:8080/thredds/ncss/grid/fmrc/NCEP/GFS/CONUS_191km/files/GFS_CONUS_191km_20100821_1800.grib1/dataset.html

The NCSS only works on datasets that the TDS recognizes as gridded data.
There are details on that and how to configure the TDS to serve datasets
using NCSS here:

http://www.unidata.ucar.edu/projects/THREDDS/tech/tds4.2/reference/NetcdfSubsetService.html

Hope that helps,

Ethan


On 8/1/2010 11:26 PM, Derrick.Wong@xxxxxxxx wrote:
> Hi all,
> 
> Thanks for the earlier replies.
> 
> I was looking at the OPeNDAP Server Dataset Access Form
> (http://test.opendap.org/opendap/data/nc/sst.mnmean.nc.gz.html)
> and under Action, there's a "Get as NetCDF" option in this form,
> however the Thredds instance I have deployed do not have this option.
> 
> Under the General Help it reads:
> To get data in ASCII, various common formats or DODS binary objects,
> click on one of the buttons labeled Get .... The Get ASCII and
> Get DODS Data Object buttons will always be present. Other buttons
> may be present providing access other types of return formats such
> as NetCDF, HDF, et cetera. Note that in order to use the DODS Data
> Objects, you'll need to download software from the OPeNDAP web site
> to decode them.
> 
> How do I go about enabling this option? I am interested in being
> able to download the subsetted datasets as Netcdf files.
> 
> 
> Thank you for your time.
> 
> 
> Regards,
> 
> Derrick Wong 
> Software Engineer | ASRDC (Australian Spatial Research Data Commons) Project 
> | CSIRO

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