Details
| Original language | English |
|---|---|
| Title of host publication | Gravity, Positioning and Reference Frames - Proceedings of the IAG Symposia - GGHS2022 |
| Subtitle of host publication | Gravity, Geoid, and Height Systems 2022; IAG Commission 4: Positioning and Applications, 2022; REFAG2022: Reference Frames for Applications in Geosciences, 2022 |
| Editors | Jeffrey T. Freymueller, Laura Sánchez |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 29-36 |
| Number of pages | 8 |
| ISBN (electronic) | 978-3-031-63855-8 |
| ISBN (print) | 9783031638541 |
| Publication status | Published - 2023 |
| Event | IAG International Symposium on Reference Frames for Applications in Geosciences, REFAG 2022 - Thessaloniki, Greece Duration: 17 Oct 2022 → 20 Oct 2022 |
Publication series
| Name | International Association of Geodesy Symposia |
|---|---|
| Volume | 156 |
| ISSN (Print) | 0939-9585 |
| ISSN (electronic) | 2197-9359 |
Abstract
Comparisons of absolute gravimeters are essential to guarantee their traceability to the International System of Units (SI) and their compatibility and will be a key component of the upcoming International Terrestrial Gravity Reference Frame (ITGRF) of IAG. The results of the regional comparison of absolute gravimeters WET-CAG2021 hosted at the Geodetic Observatory Wettzell, Germany, in autumn 2021 are presented. Seven FG5/X absolute gravimeters and—for the first time—two commercial AQG absolute quantum gravimeters took part. Temporal gravity variations during the comparison period of 12 weeks were monitored with the superconducting gravimeter GWR OSG-030. The equivalence of each absolute gravimeter is evaluated against a common reference level derived from the measurements during this comparison period. Although the comparison is outside the scope of CIPM MRA it is linked to the EURAMET.M.G-K3 2018 at the same site and the CM.G-K2.2017 in Beijing, China, which ensures the traceability.
Keywords
- Absolute gravimeter, Comparison, Gravity reference system
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Computers in Earth Sciences
- Earth and Planetary Sciences(all)
- Geophysics
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Gravity, Positioning and Reference Frames - Proceedings of the IAG Symposia - GGHS2022: Gravity, Geoid, and Height Systems 2022; IAG Commission 4: Positioning and Applications, 2022; REFAG2022: Reference Frames for Applications in Geosciences, 2022. ed. / Jeffrey T. Freymueller; Laura Sánchez. Springer Science and Business Media Deutschland GmbH, 2023. p. 29-36 (International Association of Geodesy Symposia; Vol. 156).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Comparisons of Absolute Gravimeters as a Key Component of the International Terrestrial Gravity Reference Frame (ITGRF) Shown on the Example of the WET-CAG2021 at Wettzell, Germany
AU - Wziontek, Hartmut
AU - Falk, Reinhard
AU - Pálinkáš, Vojtech
AU - Engfeldt, Andreas
AU - Glässel, Julian
AU - Hellerschmied, Andreas
AU - Iacovone, Domenico
AU - Kostelecky, Jakub
AU - Reich, Marvin
AU - Timmen, Ludger
AU - Ullrich, Christian
AU - Valluzzi, Alessandro
AU - Zehetmaier, Barbara
N1 - Publisher Copyright: © The Author(s) 2023.
PY - 2023
Y1 - 2023
N2 - Comparisons of absolute gravimeters are essential to guarantee their traceability to the International System of Units (SI) and their compatibility and will be a key component of the upcoming International Terrestrial Gravity Reference Frame (ITGRF) of IAG. The results of the regional comparison of absolute gravimeters WET-CAG2021 hosted at the Geodetic Observatory Wettzell, Germany, in autumn 2021 are presented. Seven FG5/X absolute gravimeters and—for the first time—two commercial AQG absolute quantum gravimeters took part. Temporal gravity variations during the comparison period of 12 weeks were monitored with the superconducting gravimeter GWR OSG-030. The equivalence of each absolute gravimeter is evaluated against a common reference level derived from the measurements during this comparison period. Although the comparison is outside the scope of CIPM MRA it is linked to the EURAMET.M.G-K3 2018 at the same site and the CM.G-K2.2017 in Beijing, China, which ensures the traceability.
AB - Comparisons of absolute gravimeters are essential to guarantee their traceability to the International System of Units (SI) and their compatibility and will be a key component of the upcoming International Terrestrial Gravity Reference Frame (ITGRF) of IAG. The results of the regional comparison of absolute gravimeters WET-CAG2021 hosted at the Geodetic Observatory Wettzell, Germany, in autumn 2021 are presented. Seven FG5/X absolute gravimeters and—for the first time—two commercial AQG absolute quantum gravimeters took part. Temporal gravity variations during the comparison period of 12 weeks were monitored with the superconducting gravimeter GWR OSG-030. The equivalence of each absolute gravimeter is evaluated against a common reference level derived from the measurements during this comparison period. Although the comparison is outside the scope of CIPM MRA it is linked to the EURAMET.M.G-K3 2018 at the same site and the CM.G-K2.2017 in Beijing, China, which ensures the traceability.
KW - Absolute gravimeter
KW - Comparison
KW - Gravity reference system
UR - http://www.scopus.com/inward/record.url?scp=85200690108&partnerID=8YFLogxK
U2 - 10.1007/1345_2023_226
DO - 10.1007/1345_2023_226
M3 - Conference contribution
AN - SCOPUS:85200690108
SN - 9783031638541
T3 - International Association of Geodesy Symposia
SP - 29
EP - 36
BT - Gravity, Positioning and Reference Frames - Proceedings of the IAG Symposia - GGHS2022
A2 - Freymueller, Jeffrey T.
A2 - Sánchez, Laura
PB - Springer Science and Business Media Deutschland GmbH
T2 - IAG International Symposium on Reference Frames for Applications in Geosciences, REFAG 2022
Y2 - 17 October 2022 through 20 October 2022
ER -