Description
The backbone of the Amsterdam Ordnance Datum (NAP) is a network of about 400 primary subsurface markers. Relative movements between the primary subsurface markers are measured with spirit levelling once in 10-20 years. We investigated absolute (truncated)
| Date made available | 2020 |
|---|---|
| Publisher | TU Delft - 4TU.ResearchData |
| Date of data production | 1991 - 2019 |
| Geographical coverage | Locations for "Absolute vertical motion of NAP" |