[netCDFJava #LWQ-687003]: OpenDAP Dataset Access Form looks ok, but won't open in toolsui

["Unidata netCDF Java Support" <support-netcdf-java@xxxxxxxxxxxxxxxx>]

Hi Rich,

> I just got back from vacation, and am returning to this problem.   I
> don't understand your comment about "tau".   Do you think it's causing
> the problem?

I'm not sure. I've included the DDS below (http://coast-enviro.er.usgs.gov/thredds/dodsC/ncom/test.dds). You can see that the tau variable isn't used by any of the grids as a coordinate variable. So, I'm not sure if the ToolsUI would actually request tau. Since that is the variable I got the failure on, I'm suspicious of it. But there could be other issues I'm missing.

Could you make a request from ToolsUI for this dataset and then look in the TDS access log to see what actual HTTP requests were made. That might give us a clue as to where the ToolsUI request is failing.
 
> Yes this is an aggregation.
> 
> The NCML file works, fine, but when placed in the THREDDS catalog
> seems to produce problems, unless I'm doing something wrong in the
> catalog process.

For the NcML, the client is building the aggregated dataset itself. For the TDS access, the TDS is building the aggregated dataset and then exposing it over OPeNDAP. Perhaps the problems is somewhere in the mapping from the aggregated dataset to OPeNDAP.

> The NCML file is:
> http://coast-enviro.er.usgs.gov/models/share/ncom_catalog.ncml
> The THREDDS catalog version is at:
> http://coast-enviro.er.usgs.gov/models/share/ncom_agg.xml

I couldn't access either of these files.

Let me know what you see in the TDS logs when you access the dataset and we'll go from there.

Ethan


Dataset {
    Float64 lat[lat = 561];
    Float64 lon[lon = 401];
    Float64 depth[depth = 34];
    Float64 time[time = 216];
    Float64 tau[time = 216];
    Grid {
     ARRAY:
        Int16 water_temp[time = 216][depth = 34][lat = 561][lon = 401];
     MAPS:
        Float64 time[time = 216];
        Float64 depth[depth = 34];
        Float64 lat[lat = 561];
        Float64 lon[lon = 401];
    } water_temp;
    Grid {
     ARRAY:
        Int16 salinity[time = 216][depth = 34][lat = 561][lon = 401];
     MAPS:
        Float64 time[time = 216];
        Float64 depth[depth = 34];
        Float64 lat[lat = 561];
        Float64 lon[lon = 401];
    } salinity;
    Grid {
     ARRAY:
        Int16 water_u[time = 216][depth = 34][lat = 561][lon = 401];
     MAPS:
        Float64 time[time = 216];
        Float64 depth[depth = 34];
        Float64 lat[lat = 561];
        Float64 lon[lon = 401];
    } water_u;
    Grid {
     ARRAY:
        Int16 water_v[time = 216][depth = 34][lat = 561][lon = 401];
     MAPS:
        Float64 time[time = 216];
        Float64 depth[depth = 34];
        Float64 lat[lat = 561];
        Float64 lon[lon = 401];
    } water_v;
    Grid {
     ARRAY:
        Int16 surf_el[time = 216][lat = 561][lon = 401];
     MAPS:
        Float64 time[time = 216];
        Float64 lat[lat = 561];
        Float64 lon[lon = 401];
    } surf_el;
} ncom/test;



Ticket Details
===================
Ticket ID: LWQ-687003
Department: Support netCDF Java
Priority: Normal
Status: Open