Gravity: The Elements of Geodesy
![Gravity: The Elements of Geodesy](https://oceanservice.noaa.gov/education/tutorial_geodesy/media/geo07a_620.jpg)
The vertical datum is a collection of specific points on the Earth with known heights either above or below mean sea level. Near coastal areas, mean sea level is determined with a tide gauge. In areas far away from the shore, mean sea level is determined by the shape of the geoid.
![](https://cdn.britannica.com/67/467-050-A9D84A6E/Deflection-vertical-geoid-spheroid.jpg)
Geoid, Definition & Examples
Elements of a Geodetic Reference Frame (Datum) GEOG 862: GPS and GNSS for Geospatial Professionals
![](https://www.researchgate.net/publication/265753441/figure/fig4/AS:546065042219008@1507203459474/The-full-gravitational-tensor-elements-zy-zx-xy-zz-yy-xx.png)
The full gravitational tensor elements zy zx xy zz yy xx
![](https://cdn2.slideserve.com/4431312/slide1-n.jpg)
PPT - GEODESY PowerPoint Presentation, free download - ID:4431312
![](https://upload.wikimedia.org/wikipedia/commons/1/14/Gravity_anomalies_on_Earth.jpg)
Gravity of Earth - Wikipedia
![](https://24192633.s21i.faiusr.com/4/ABUIABAEGAAgyNbCowYomun45wYwig84rgw!600x600.png)
Computation software PALGrav4.0 for geodesy - Geophysical geodesy Scientific Computation
![](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41598-018-34733-9/MediaObjects/41598_2018_34733_Fig1_HTML.png)
Earth tectonics as seen by GOCE - Enhanced satellite gravity gradient imaging
![](https://24192633.s142i.faiusr.com/2/AI4BCPnMxAsQAhgAIM3jwqMGKKC-z4UBMIgMOLgI.jpg)
Computation software PALGrav4.0 for geodesy - Geophysical geodesy Scientific Computation
Introduction SpringerLink