I have been working quite a bit with the netcdf driver and weather data. I am noticing that many CF-1.0 (NetCDF Climate and Forecast Metadata Convention) tags are not supported or referenced in the driver. In many cases this forces some data to be set to a default. I am mostly working in the spatial reference tags and this is causing problems as I don't know where my grids are in space.
>From the NetCDF format page: > Georeference There is no universal way of storing georeferencing in netCDF > files. The driver first tries to follow the CF-1 Convention from UNIDATA > looking for the Metadata named "grid_mapping". If "grid_mapping" is not > present, the driver will try to find an lat/lon grid array to set > geotransform array. The NetCDF driver verifies that the Lat/Lon array is > equally space. > > If those 2 mehtods fail, NetCDF driver will try to read the following > metadata directly and set up georefenrencing. > > - spatial_ref (Well Known Text) > > > - GeoTransform (GeoTransform array) > > or, > > - Northernmost_Northing > - Southernmost_Northing > - Easternmost_Easting > - Westernmost_Easting > > Is it in the best interest of everyone (or most people) to follow CF-1.0 as the NetCDF Format states? regards, kss # =================== Kyle Shannon Physical Science Technician RMRS Fire Sciences Lab Fire, Fuels & Smoke - RWU 4405 5775 Highway 10 W. Missoula, MT 59808 (406) 829-6954 kshan...@fs.fed.us # ===================
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