> > Hi Yuan. > > > > I’d like to access the dataset described here: > > https://www.ncei.noaa.gov/thredds/dodsC/cdr/gridsat_agg/GridSat_B1_Aggregation_best.ncd.html > > > > Capturing the link shown there fails, with null pointer: > > https://www.ncei.noaa.gov/thredds/dodsC/cdr/gridsat_agg/GridSat_B1_Aggregation_best.ncd > > > I see no problem with the URL: > https://www.ncei.noaa.gov/thredds/dodsC/cdr/gridsat_agg/GridSat_B1_Aggregation_best.ncd > > see the attached images. I tested on both 5.7 and 5.7u1. > > > Yuan > > Hi Brian, After more research, I think you probably use the coverage type to access the above dataset and got the null pointer. This is because there is one or two variable in the dataset does not fit into the coverage type. Such as: Grid { ARRAY: Float32 irwin_3[time = 84574][sparse3ir = 845648]; MAPS: Float64 time[time = 84574]; Int32 sparse3ir[sparse3ir = 845648]; } irwin_3; I need to make some changes in the coverage data source to go around this kind of parameter. Yuan Ticket Details =================== Ticket ID: TXY-128648 Department: Support IDV Priority: Normal Status: Open =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.