Taking the Spirit Out of Levelling
Orthometric heights are normally derived using conventional spirit levelling techniques. Such techniques have always been one of the more laborious, timeconsuming and costly exercises in surveying. However, with the advent of GPS, ellipsoidal heights can be derived very accurately over a short perio...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Fakulti Ukur dan Harta Tanah,
1994-10.
|
| Subjects: | |
| Online Access: | Get fulltext |