The Height Datum Problem

The Australian height datum problems and proposals

Australian Surveyor ◽

10.1080/00050326.1988.10438540 ◽

1988 ◽

Vol 34 (4) ◽

pp. 363-380 ◽

Cited By ~ 8

Author(s):

A.H.W. Kearsley ◽

G.J. Rush ◽

P.W. O'Donnell

Keyword(s):

Height Datum

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Kronstadt height datum on the territories of the Czech and Slovak republics and its connection to a global vertical reference frame

Advances and Trends in Geodesy, Cartography and Geoinformatics ◽

10.1201/9780429505645-23 ◽

2018 ◽

pp. 139-144

Author(s):

V. Vatrt ◽

R. Machotka ◽

M. Buday

Keyword(s):

Reference Frame ◽

Height Datum

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Geodetic Boundary-Value Problems and the Height Datum Problem

International Association of Geodesy Symposia - V Hotine-Marussi Symposium on Mathematical Geodesy ◽

10.1007/978-3-662-10735-5_23 ◽

2004 ◽

pp. 174-178 ◽

Cited By ~ 2

Author(s):

Fausto Sacerdote ◽

Fernando Sanso’

Keyword(s):

Boundary Value Problems ◽

Boundary Value ◽

Geodetic Boundary ◽

Height Datum

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Long distance transference of height datum across seas

Geo-spatial Information Science ◽

10.1007/bf02826381 ◽

2002 ◽

Vol 5 (3) ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Li Jiancheng ◽

Jiang Weiping

Keyword(s):

Long Distance ◽

Height Datum

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Subsidence in the Dutch Wadden Sea

Netherlands Journal of Geosciences – Geologie en Mijnbouw ◽

10.1017/njg.2018.9 ◽

2018 ◽

Vol 97 (3) ◽

pp. 129-181 ◽

Cited By ~ 3

Author(s):

Peter.A. Fokker ◽

Freek.J. van Leijen ◽

Bogdan Orlic ◽

Hans van der Marel ◽

Ramon.F. Hanssen

Keyword(s):

Wadden Sea ◽

Ground Surface ◽

Vertical Motion ◽

Future Research ◽

Surface Dynamics ◽

Differential Signal ◽

Vertical Datum ◽

Geodetic Height ◽

Height Datum ◽

Sea Area

AbstractGround surface dynamics is one of the processes influencing the future of the Wadden Sea area. Vertical land movement, both subsidence and heave, is a direct contributor to changes in the relative sea level. It is defined as the change of height of the Earth's surface with respect to a vertical datum. In the Netherlands, the Normaal Amsterdams Peil (NAP) is the official height datum, but its realisation via reference benchmarks is not time-dependent. Consequently, NAP benchmarks are not optimal for monitoring physical processes such as land subsidence. However, surface subsidence can be regarded as a differential signal: the vertical motion of one location relative to the vertical motion of another location. In this case, the actual geodetic height datum is superfluous.In the present paper, we highlight the processes that cause subsidence, with specific focus on the Wadden Sea area. The focus will be toward anthropogenic causes of subsidence, and how to understand them; how to measure and monitor and use these measurements for better characterisation and forecasting; with some details on the activities in the Wadden Sea that are relevant in this respect. This naturally leads to the identification of knowledge gaps and to the formulation of notions for future research.

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