Re: OT 10Mhz references
Craig Sawyers <c.sawyers@...>
This is the earth's geoid - the surface of constant gravitational and rotational potential energy, andtoggle quoted messageShow quoted text
represents the surface that water would take under that influence. It gives a good visualisation of
what GPS has to correct for.
There are more accurate gravitational maps from GRACE and GOCE missions, but the datasets are on a