Parent Topic: GRID SHIFT FILES

NTv1 files
There is one Canadian NTv1 (National Transformation, Version 1) grid-shift file provided in the $PCIHOME/etc directory:

 Datum   Datum Name                                       Ellipsoid
 Code      Location                                       used
             (File in $PCIHOME/etc)
               Area covered

 "D-03"  NAD27 (Canada, NTv1)                             "E000"
           Canada                                          Clarke 1866
             ("grid.dac")
               Longitudes:  44d W to 142d W;
               Latitudes:   40d N to  84d N
               Resolution:  15 minutes

 "D-04"  NAD83 (Canada, NTv1)                             "E008"
           Canada                                          GRS 1980
             ("grid.dac")
               Longitudes:  44d W to 142d W;
               Latitudes:   40d N to  84d N
               Resolution:  15 minutes

Parent Topic: GRID SHIFT FILES
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