Good luck in fulfilling your goals. In addition to Bill93??s comment about differences in property law among US states, there are differences in the ...
@john-hamilton?ÿ I knew you knew that GPS was not used.?ÿ Glad the 200th anniversary site you link is still available. Lots of good graphics. Given...
Some readily available papers dealing with the issue of multipath and antenna height: Of course, these studies were undertaken in open, non-obs...
@john-hamilton?ÿ Just to clarify, the TCT did not use GPS.?ÿ Those interested in the history of USC&GS/NGS geodetic surveying might enjoy Dracup...
Not recommended. Taken from:/p> ?ÿ
FWIW, However much I reflect on the pre-GNSS days, I cannot generate enthusiasm for the Tellurometer. Of course it would be hard to find a functionin...
Very good presentation and lots of interesting questions. As usual, the presentation will be posted to the NGS site in a week or so. The questions pos...
I would look here: ?ÿ
Do not miss this opportunity to learn more about the new Geoid model. It is free but you must register.
CNN has a set of before and after images here: ?ÿ
Look at Sanibel Islands Park causeway B... ?ÿ
Some tools useful for analysis of NGS-leveling data. ?ÿ 1.?ÿ?ÿ - web page to retrieve information for points in the NGS data base. 2.?ÿ?ÿ- beta sit...
@lurker?ÿ Keep checking the site for updates.
As can be seen in the graphic, there is a significant cross-CONUS tilt between NAVD88 and the best information available. Implicit in the various NGS...