I have two datasets in ArcGIS. One is from the Ordnance Survey (UK National Mapping Agency) and, when I view the properties of the dataset it says that the Spatial Reference is
I want to set another file to the same spatial reference. I know I can use the Import function to import it from the first file, but how would I select this co-ordinate system from the built-in ArcGIS ones? I can find
British National Grid under Projected/National Grids/Europe and I can find
OSGB 1936 under Geographic/Europe, but I can't seem to find the combination of the two anywhere?
I'm not hugely experienced with co-ordinate systems, but I think that BNG is the co-ordinate system, and OSGB 1936 is the datum. Is that correct? I know that when I select spatial references in ENVI I can choose a co-ordinate system of
United Kingdom and a Datum of
OSGB1936 - is there a way to do this in ArcGIS?