[ferret_users] Accessing a DODS Aggregation Server with Ferret

[John Schattel <john.schattel@xxxxxxxx>]

Hi All,

I recently set up a DODS aggregation server 
(http://www.unidata.ucar.edu/projects/THREDDS/tech/aggServer/AggServerStatus.html).  
But, Ferret is balking at the aggregated "netCDF file".  The following 
link shows the content of the aggregated data (3 files each containing 
15 time periods --> an aggregate of 45 time periods):

http://205.156.4.56:8080/dodsC/ngom/ngom_agg.nc.dds

Dataset {
   Float32 time[time = 45];
   Float32 lon[ny = 160][nx = 217];
   Float32 lat[ny = 160][nx = 217];
   Float32 mask[ny = 160][nx = 217];
   Float32 depth[ny = 160][nx = 217];
   Float32 sigma[sigma = 37];
   Float32 zeta[time = 45][ny = 160][nx = 217];
   Float32 u[time = 45][sigma = 37][ny = 160][nx = 217];
   Float32 v[time = 45][sigma = 37][ny = 160][nx = 217];
   Float32 temp[time = 45][sigma = 37][ny = 160][nx = 217];
   Float32 salt[time = 45][sigma = 37][ny = 160][nx = 217];
} ngom/ngom_agg.nc;

But when I use the dataset in Ferret, it doesn't seem to recognize the 
netCDF format.

yes? use "http://205.156.4.56:8080/dodsC/ngom/ngom_agg.nc";
** netCDF error: Invalid Argument
is this a CDF file ?
yes?

Should Ferret be able to use a DODS aggregation server aggregate?  Is 
so, can anyone suggest what might be going wrong with either Ferret or 
the aggregation server?

In advance, thanks for any help you can offer.

John