You may notice that you can't delete AC folder, but that's alright. 5- Restart your computer. 6- Now, were going to re-register Microsoft Edge in your account. Open the Start menu, search for Windows PowerShell, right-click it from the result, and select Run as administrator. 7- Type the following command and hit Enter : cd C:\Users\UseYourUsername.
A geodetic datum is an abstract coordinate system with a reference surface (such as sea level) that serves to provide known locations to begin surveys and create maps. In this way, datums act similar to starting points when you give someone directions.
More broadly, a vertical datum is the entire system of the zero elevation surface and methods of determining heights relative to that surface.Over the years, many different types of vertical datums have been used. The most predominant types today are tidal datums and geodetic datums. . Each of these datums has either a single datum origin point, otherwise known as a primary bench mark, or one such point per island in its coverage area. Every datum origin point in these five datums is at a tide gage.