I was wondering if there was any work being done to incorporate more vertical datum transformations in ArcGIS. Many of us in NOAA are diligently working on coastal inundation mapping and currently the only way to perform vertical datum transformations is to export the xy-coordinate data table into NOAA made software called VDatum and then export it back into ArcGIS. It works but is very tedious and would be of great benefit if you could perform both horizontal and vertical transfomations in one piece of software. Especially now in the wake of Katrina and Sandy when storm surge inundation (and river flood inundation) products are being created and used more and more by the emergency management community.
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