This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
> Hello idv folks. > > Any bells ring about why this remote data file fails me? > > Thanks for any ideas. > Brian > Brian, The pydap is quite different comparing to the regular opendap dataset. The url is basically a http link and the netCDF java library is not ready to access this kind of dataset. Yuan > > java.io.EOFException. > > In grads, the reading error appears as > > gadsdf: SDF file has no discernable X coordinate. > > > > > > --------------- > > Example of unopenable URL: > > http://portal.nersc.gov/pydap/cpmmjo/wrfidv_d01_2011-11-01_01.nc > > But when I download the file > > Downloads/wrfidv_d01_2011-11-01_01.nc > > it works OK. > > > > > > So it is a PyDAP serving issue. > > > > > > ------------ > > This file on the same server works: > > http://portal.nersc.gov/pydap/20C_Reanalysis_ensemble/analysis.derived/pwat/pwat_1928.daily.nc > > so it seems the PyDAP server itself is OK. Just the files or tree are not > > set up right? > > Ticket Details =================== Ticket ID: MHJ-258620 Department: Support IDV Priority: Normal Status: Closed