A Two-Frame National Geospatial Reference System Accounting for Geodynamics

Donnelly, Nic; Crook, Chris; Stanaway, Richard; Roberts, Craig; Rizos, Chris; Haasdyk, J

doi:10.1007/1345_2015_188

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…To support these diverse user needs LINZ is considering how to implement a two-frame system whereby both national and global datums are actively supported, with well-defined transformations between them (Donnelly et al 2015). This would effectively be a formalisation of existing practice.…”

Section: Future Datum Developmentmentioning

confidence: 99%

From static to dynamic datums: 150 years of geodetic datums in New Zealand

Blick¹,

Donnelly²

2016

New Zealand Journal of Geology and Geophysics

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The geodetic system in New Zealand plays an important role in the development of our country. It comprises intellectual, physical and data components which provide authoritative coordinate systems for New Zealand's areas of territorial and administrative responsibility. Measuring and mapping continues today with the management of our natural and economic resources becoming increasingly dependent on the availability of accurate and consistent spatial information. The foundation of our geographically based datasets, including the cadastral system, is an accurate national geospatial reference system, the 'geodetic system'.

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Section: Future Datum Developmentmentioning

confidence: 99%

From static to dynamic datums: 150 years of geodetic datums in New Zealand

Blick¹,

Donnelly²

2016

New Zealand Journal of Geology and Geophysics

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NKG2020 transformation: An updated transformation between dynamic and static reference frames in the Nordic and Baltic countries

Häkli,

Evers,

Jivall

et al. 2023

Journal of Geodetic Science

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Coordinates in global reference frames are becoming more and more common in positioning whereas most of the geospatial data are stored in registries in national reference frames. It is therefore essential to know the relation between global and national coordinates, i.e., the transformation, as accurately as possible. Officially provided pan-European transformations do not account for the special conditions in the Nordic and Baltic countries, namely crustal deformations caused by Glacial Isostatic Adjustment. Therefore, they do not fulfill the demands for the most accurate applications like long-term reference frame maintenance. Consequently, the Nordic Geodetic Commission (NKG) has developed customized and accurate transformations from the global ITRF to the national ETRS89 realizations for the Nordic and Baltic countries. We present the latest update, called the NKG2020 transformation, with several improvements and uncertainty estimates. We also discuss its significance and practical implementation for geodetic and geospatial communities.

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A Two-Frame National Geospatial Reference System Accounting for Geodynamics

Cited by 2 publications

References 5 publications

From static to dynamic datums: 150 years of geodetic datums in New Zealand

From static to dynamic datums: 150 years of geodetic datums in New Zealand

NKG2020 transformation: An updated transformation between dynamic and static reference frames in the Nordic and Baltic countries

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