The Vertcon method was created by NOAA-NGS. It is a grid based transformation model used to convert from the NGVD29 vertical coordinate system to NAVD88. For more detailed information on this transformation, please visit the NOAA-NGS website listed in the appendix of these help files.
The "Vertcon" vertical transform has the following Parameters:
Parameter Name |
Parameter String |
Units |
Path to directory containing grid files |
path |
String |
File extension of grid files |
extention |
String |