Of course http://en.wikipedia.org/wiki/Plate_tectonics plays a small role. Whole areas are slowly on the move.
But on a practical, and short terms scale (even 20 years) its not really worth worrying about. The difference caused by Plate movements will be less than the other (in)accuracies in geocoding. The main reason for changes, will be that geocoding by its nature is in accurate, and best on estimations, so the actual location can change as the data powering geocoding (hopefully!) improves. Also the geocoding aloorthimgs can improve. (but with every improvement, it follows that some others will also suffer) Finally locations could change, as the coordiante systems improve - (they are 'best fit' approximiations trying to map an imperfect sphere) - so with time those approximations are likly to get better. But to be honest the coordinate systems are now quite refined, and relatively stable. Not likly to see changes due to this (famous last words!) On 23 March 2011 12:47, Liam Friel <[email protected]> wrote: > Are there any other reasons apart from accuracy that these values (Lat > & Long) change? I want to know more about geolocations in general and > I wonder if there are any mathematical or geographic reasons for the > changes? > > -- > You received this message because you are subscribed to the Google Groups > "Google Maps JavaScript API v3" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/google-maps-js-api-v3?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
