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1. www.vdatum.noaa.gov › vdatumwebOnline VDatum: Vertical Datums Transformation

   www.vdatum.noaa.gov › vdatumweb

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   Vertical Information. Point Conversion. ASCII File Conversion. Valid Tidal area Non-Tidal area Non-Valid area. CRD IGLD85 SVU area. 1000 km. 500 mi. Alternating Horz. Datum Ellipsoidal Datum Orthometric Datum Tidal Datum.

   • Vertcon

     VERTCON – North American Vertical Datum Conversion. *** This...

   • Vertcon 3.0

     performs three-dimensional (latitude, longitude, ellipsoid...

   • User Guide

     What is its vertical datum? How would you like to...

   • Noaa/Nos's VDatum 4.2

     Vertical Datums: Ellipsoidal Datums: NAD83_2011, WGS84,...

2. www.ngs.noaa.gov › NCATNGS Coordinate Conversion and Transformation Tool (NCAT)

   www.ngs.noaa.gov › NCAT

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   May 21, 2024 · For coordinate conversion, NCAT allows conversion between lat/long/height, SPC, UTM, XYZ, and USNG systems. NCAT currently uses NADCON* to perform three-dimensional (latitude, longitude, ellipsoid height) coordinate transformations and VERTCON* to perform orthometric height transformations.

3. People also ask

   What is a vertical datum?

   • A vertical datum is a reference system that defines a surface which provides a ‘zero point’ from which heights are measured. Just as latitude and longitude on the Earth's surface are measured using geodetic datums, elevations and depths are measured using vertical datums.

   Height datum conversions | Geodetic Guidance - Land Information Ne…

   www.linz.govt.nz/guidance/geodetic-system/understanding-coordinate-conversions/height-datum-conversions

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   What happened to NGS coordinate conversion & transformation tool (NCAT)?

   • *** This software has been superseded and replaced by NGS Coordinate Conversion and Transformation Tool (NCAT) and has been retained for historical context. For comments or questions please contact the NGS Infocenter ***

   VERTCON - North American Vertical Datum Conversion

   www.ngs.noaa.gov/TOOLS/Vertcon/vertcon.html

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   Is vertcon a stand-alone transformation tool?

   • However VERTCON is no longer the name of a stand-alone transformation tool. The actual transformation tool is NGS’s Coordinate Conversion and Transformation Tool (NCAT), in which VERTCON 3.0 release 20190601 is but one part.

   VERTCON 3.0 | Tools | National Geodetic Survey

   www.ngs.noaa.gov/VERTCON3/

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4. www.linz.govt.nz › height-datum-conversionsHeight datum conversions | Geodetic Guidance

   www.linz.govt.nz › height-datum-conversions

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   Apr 5, 2024 · Diagram showing the relationship between different height surfaces. Converting data between vertical datums our online coordinate converter or the vertical datum conversion form. Both give examples of the expected input data depending on the options chosen.