The error you are seeing is a server error, not a netcdf dap code error. When you see such an error, it can be helpful to do the following: 1. stick the url into a web browser (with .dods or .ascii appended) e.g. http://motherlode.ucar.edu:8080/thredds/dodsC/testdods/in.nc.dods and look at the result. and 2. do ncdump and prefix the url with [log], e.g. [log]http://motherlode.ucar.edu:8080/thredds/dodsC/testdods/in.nc This will cause extra output onto stderr. =Dennis Heimbigner Unidata Ticket Details =================== Ticket ID: JZN-949284 Department: Support netCDF Priority: Normal Status: Open