Example 1: Static Datum

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Example 1: Static Datum

EXAMPLE 1: Static Horizontal Datum with Orthometric Vertical Datum using RTX Refined Reference Station Coordinates (@ L1 Phase Center)

Data Collected : 06/18/21
Desired output for LAS/LAZ: NAD 83 (2011) 2010.000 UTM 14 North Meters, NAVD88 - Geoid18

: NAD 83 (2011) 2010.000 UTM 14 North Meters

NAD 83 is the North American Datum of 1983 and is and stable relative to the North American tectonic plate.
NAD 83 =
(2011) =
2010.000 =
UTM 14 North =
Meters = Units

: North American Vertical Datum of 1988 (NAVD88) – 18

Note: Orthometric vertical datum’s require user to select a geoid model.
For the United States, the GEOIDxx geoid models as been developed based on observations by NOAA’s National Geodetic Survey (NGS).
These geoid models (e.g., GEOID 99, GEOID 03, GEOID12, etc.) provide the geoid undulation parameter (geoid height), so that the ellipsoid height from the NAD 83 three dimensional datum can be directly converted to the NAVD 88 orthometric height.

Navlab and LiDARMill Workflow

Project CRS Georeferencing

Next, select the Horizontal coordinate system "NAD83(2011)/UTM zone 14N" (Datum and Map Projection) and NAVD88 (orthometric vertical datum) as the vertical coordinate system + GEOID18 (Geoid model)

GCP Georeferencing

Reference Station Georeferencing

Output Trajectory Georeferencing

Export Pointcloud Georeferencing

LiDARMill may prompt the user to select the output coordinate system within the Spatial Fuser Pipeline. If it does not prompt the user, the Project CRS will be used.