RG 2000 - the new gravity reference frame of Sweden

Andreas Engfeldt, Per Anders Olsson, Holger Steffen, Martin Lidberg, Jonas Ågren, Marcin Sekowski, Przemyslaw Dykowski, Jan Krynski, Henrik Bryskhe, Jens Emil Nielsen, Gabriel Strykowski

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Abstract

The increased need for improved geoid models for Global Navigation Satellite Systems (GNSS) height determination calls for additional gravity observations and quality assurance of existing data. In this perspective, a modern gravity system and the renovation of an already existing high order gravity network is considered as a moderate strategic investment which provides a firm foundation for further activities. Here the new gravity reference frame RG 2000 for Sweden is presented. RG 2000 is realized by absolute gravity observations at 109 stations. The absolute points are connected via old and new relative gravity observations, including another 216 points. Points and observations have been chosen so that good overlap with the older Swedish reference frames, RG 62 and RG 82, is achieved, allowing to evaluate the older frames and transformations between them. RG 2000 is based on a zero permanent tide system with epoch 2000.
Original languageEnglish
JournalGeophysica
Volume54
Issue number1
Pages (from-to)69-92
ISSN0367-4231
Publication statusPublished - 2019

Keywords

  • Gravity
  • Reference Frame
  • Absolute gravimetry
  • Gravity network
  • FG5
  • A10
  • RG 2000

Cite this

Engfeldt, A., Olsson, P. A., Steffen, H., Lidberg, M., Ågren, J., Sekowski, M., ... Strykowski, G. (2019). RG 2000 - the new gravity reference frame of Sweden. Geophysica, 54(1), 69-92.
Engfeldt, Andreas ; Olsson, Per Anders ; Steffen, Holger ; Lidberg, Martin ; Ågren, Jonas ; Sekowski, Marcin ; Dykowski, Przemyslaw ; Krynski, Jan ; Bryskhe, Henrik ; Nielsen, Jens Emil ; Strykowski, Gabriel. / RG 2000 - the new gravity reference frame of Sweden. In: Geophysica. 2019 ; Vol. 54, No. 1. pp. 69-92.
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abstract = "The increased need for improved geoid models for Global Navigation Satellite Systems (GNSS) height determination calls for additional gravity observations and quality assurance of existing data. In this perspective, a modern gravity system and the renovation of an already existing high order gravity network is considered as a moderate strategic investment which provides a firm foundation for further activities. Here the new gravity reference frame RG 2000 for Sweden is presented. RG 2000 is realized by absolute gravity observations at 109 stations. The absolute points are connected via old and new relative gravity observations, including another 216 points. Points and observations have been chosen so that good overlap with the older Swedish reference frames, RG 62 and RG 82, is achieved, allowing to evaluate the older frames and transformations between them. RG 2000 is based on a zero permanent tide system with epoch 2000.",
keywords = "Gravity, Reference Frame, Absolute gravimetry, Gravity network, FG5, A10, RG 2000",
author = "Andreas Engfeldt and Olsson, {Per Anders} and Holger Steffen and Martin Lidberg and Jonas {\AA}gren and Marcin Sekowski and Przemyslaw Dykowski and Jan Krynski and Henrik Bryskhe and Nielsen, {Jens Emil} and Gabriel Strykowski",
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Engfeldt, A, Olsson, PA, Steffen, H, Lidberg, M, Ågren, J, Sekowski, M, Dykowski, P, Krynski, J, Bryskhe, H, Nielsen, JE & Strykowski, G 2019, 'RG 2000 - the new gravity reference frame of Sweden', Geophysica, vol. 54, no. 1, pp. 69-92.

RG 2000 - the new gravity reference frame of Sweden. / Engfeldt, Andreas; Olsson, Per Anders; Steffen, Holger; Lidberg, Martin; Ågren, Jonas; Sekowski, Marcin; Dykowski, Przemyslaw; Krynski, Jan; Bryskhe, Henrik; Nielsen, Jens Emil; Strykowski, Gabriel.

In: Geophysica, Vol. 54, No. 1, 2019, p. 69-92.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - RG 2000 - the new gravity reference frame of Sweden

AU - Engfeldt, Andreas

AU - Olsson, Per Anders

AU - Steffen, Holger

AU - Lidberg, Martin

AU - Ågren, Jonas

AU - Sekowski, Marcin

AU - Dykowski, Przemyslaw

AU - Krynski, Jan

AU - Bryskhe, Henrik

AU - Nielsen, Jens Emil

AU - Strykowski, Gabriel

PY - 2019

Y1 - 2019

N2 - The increased need for improved geoid models for Global Navigation Satellite Systems (GNSS) height determination calls for additional gravity observations and quality assurance of existing data. In this perspective, a modern gravity system and the renovation of an already existing high order gravity network is considered as a moderate strategic investment which provides a firm foundation for further activities. Here the new gravity reference frame RG 2000 for Sweden is presented. RG 2000 is realized by absolute gravity observations at 109 stations. The absolute points are connected via old and new relative gravity observations, including another 216 points. Points and observations have been chosen so that good overlap with the older Swedish reference frames, RG 62 and RG 82, is achieved, allowing to evaluate the older frames and transformations between them. RG 2000 is based on a zero permanent tide system with epoch 2000.

AB - The increased need for improved geoid models for Global Navigation Satellite Systems (GNSS) height determination calls for additional gravity observations and quality assurance of existing data. In this perspective, a modern gravity system and the renovation of an already existing high order gravity network is considered as a moderate strategic investment which provides a firm foundation for further activities. Here the new gravity reference frame RG 2000 for Sweden is presented. RG 2000 is realized by absolute gravity observations at 109 stations. The absolute points are connected via old and new relative gravity observations, including another 216 points. Points and observations have been chosen so that good overlap with the older Swedish reference frames, RG 62 and RG 82, is achieved, allowing to evaluate the older frames and transformations between them. RG 2000 is based on a zero permanent tide system with epoch 2000.

KW - Gravity

KW - Reference Frame

KW - Absolute gravimetry

KW - Gravity network

KW - FG5

KW - A10

KW - RG 2000

M3 - Journal article

VL - 54

SP - 69

EP - 92

JO - Geophysica

JF - Geophysica

SN - 0367-4231

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ER -

Engfeldt A, Olsson PA, Steffen H, Lidberg M, Ågren J, Sekowski M et al. RG 2000 - the new gravity reference frame of Sweden. Geophysica. 2019;54(1):69-92.