RowanFealy
commented
4 years ago Follow up on previous post
ncdump of original file netcdf G:/ERA-Interim/Data1/interim_daily_201401.nc { dimensions: longitude = 67; latitude = 61; time = UNLIMITED; // (124 currently) variables: double t2m(time=124, latitude=61, longitude=67); :scale_factor = 0.0010899350256532252; // double :add_offset = 267.3471494294598; // double :_FillValue = -32767S; // short :missing_value = -32767S; // short :units = "K"; :long_name = "2 metre temperature";
float longitude(longitude=67);
:units = "degrees_east";
:long_name = "longitude";
:_CoordinateAxisType = "Lon";
float latitude(latitude=61);
:units = "degrees_north";
:long_name = "latitude";
:_CoordinateAxisType = "Lat";
int time(time=124);
:units = "hours since 1900-01-01 00:00:00.0";
:long_name = "time";
:calendar = "gregorian";
:_CoordinateAxisType = "Time";// global attributes: :Conventions = "CF-1.6"; :history = "2020-04-04 14:58:42 GMT by grib_to_netcdf-2.15.0: grib_to_netcdf /data/data05/scratch/0c/5d/_mars-atls17-a82bacafb5c306db76464bc7e824bb75-e2CKAd.grib -o /data/data02/scratch/51/b6/_grib2netcdf-atls19-a82bacafb5c306db76464bc7e824bb75-yvSrEu.nc -utime"; :_CoordSysBuilder = "ucar.nc2.dataset.conv.CF1Convention"; }
ncdump of file are writing out from toolUI netcdf G:/ERA-Interim/Data/interim_daily_201401.sub.nc { dimensions: time = UNLIMITED; // (124 currently) latitude = 61; longitude = 67; variables: double t2m(time=124, latitude=61, longitude=67); :_FillValue = -32767.0; // double :missing_value = -32767S; // short :units = "K"; :long_name = "2 metre temperature"; :coordinates = "time latitude longitude ";
int time(time=124);
:units = "hours since 1900-01-01 00:00:00.0";
:long_name = "time";
:calendar = "gregorian";
:_CoordinateAxisType = "Time";
float latitude(latitude=61);
:units = "degrees_north";
:long_name = "latitude";
:_CoordinateAxisType = "Lat";
:standard_name = "latitude";
float longitude(longitude=67);
:units = "degrees_east";
:long_name = "longitude";
:_CoordinateAxisType = "Lon";
:standard_name = "longitude";// global attributes: :Conventions = "CF-1.6"; :history = "Fri Apr 17 14:55:04 2020: ncpdq --unpack G:\ERA-Interim\Data1\interim_daily_201401.nc G:\ERA-Interim\Data\interim_daily_201401.nc\n2020-04-04 14:58:42 GMT by grib_to_netcdf-2.15.0: grib_to_netcdf /data/data05/scratch/0c/5d/_mars-atls17-a82bacafb5c306db76464bc7e824bb75-e2CKAd.grib -o /data/data02/scratch/51/b6/_grib2netcdf-atls19-a82bacafb5c306db76464bc7e824bb75-yvSrEu.nc -utime"; :nco_openmp_thread_number = 1; // int :History = "Translated to CF-1.0 Conventions by Netcdf-Java CDM (CFGridWriter2)\nOriginal Dataset = G:/ERA-Interim/Data/interim_daily_201401.nc; Translation Date = 2020-04-17T15:07:02.594Z"; :geospatial_lat_min = 30.0; // double :geospatial_lat_max = 75.0; // double :geospatial_lon_min = -15.0; // double :geospatial_lon_max = 34.5; // double :_CoordSysBuilder = "ucar.nc2.dataset.conv.CF1Convention"; }
cofinoa
sixtohg
Hi I am trying to use the makeAggregatedDataset with ERA-Interim data that I downloaded from ECMWF in netcdf. I get the following error [2020-04-17 16:53:22] Creating dataset from 2 files [2020-04-17 16:53:22] Scanning file 1 out of 1 [2020-04-17 16:53:22] Defining aggregating dimension length This process may be slow but will significantly speed-up data retrieval... Error in .jnew(.class.to.jclass[cm], a) : java.lang.NullPointerException
I had a read of the previous related thread. Using the toolsUI I can see that the grid appears to the correctly read using the FeatureTypes > Grids option. However, I noticed that the files (t2m) had a scale and offset feature - so I used the toolUI to write out a new netcdf file that was unpacked.
The coordinates do not contain an Axis coordinate - not sure how to add this to the file. But I would have presumed that the CF compliant files from toolUI would be consistent in format.
Using dataInventory on the file works fine - reads it no problem
I also get the following from
I have also updated to the latest release of loadeR
Any help would be gratefully appreciated. R