| One, the geodetic effect, has been measured before by bouncing lasers off the moon, but the new measurements will be 20 times more precise. |
| Many different definitions of a horizontal datum, also known as geodetic datum, exist. |
| This in fact provides NAD83-CSRS geodetic control where none exists and permits the entire survey to be tied to the NAD83-CSRS datum. |
| Einstein's theory predicts that such gyroscopes will undergo geodetic precession merely because space-time is curved in the planet's vicinity. |
| The realization of a new vertical datum for Canada by geoid modelling, rather than by geodetic levelling. |
| A later determination by Clarke in 1880 reflected the several geodetic surveys that had been conducted during the interim. |
