Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | IAG 150 Years |
| Untertitel | Proceedings of the 2013 IAG Scientific Assembly |
| Herausgeber/-innen | Chris Rizos, Pascal Willis |
| Herausgeber (Verlag) | Springer Verlag |
| Seiten | 249-256 |
| Seitenumfang | 8 |
| ISBN (elektronisch) | 978-3-319-30895-1 |
| ISBN (Print) | 9783319246031 |
| Publikationsstatus | Veröffentlicht - 20 Juni 2015 |
| Veranstaltung | 150th Anniversary with a Scientific Assembly, IAG 2013 - Potsdam, Deutschland Dauer: 2 Sept. 2013 → 6 Sept. 2013 |
Publikationsreihe
| Name | International Association of Geodesy Symposia |
|---|---|
| Band | 143 |
| ISSN (Print) | 0939-9585 |
Abstract
Presently, modern spring gravimeters are the most flexible, technically simple, and comparatively cheap solution for recordings over extended time periods in contrast to superconducting gravimeters. We investigate the accuracy of the state-of-the-art spring gravimeters Micro-g LaCoste gPhone-98 and ZLS Burris Gravity Meter B-64 of the Institut für Erdmessung (IfE). With both instruments gravity was recorded for periods of several months at five stations with high and low microseismic noise. Simultaneous measurements with both instruments as well as the parallel recording of the ZLS Burris gravimeter with the GWR Instruments Observatory Superconducting Gravimeter OSG-054 in Onsala (Sweden) are investigated. Tidal analysis is used to assess the quality of the time series. Diurnal and semi-diurnal amplitude factors agree at the level of 1% and better from recordings of Burris and OSG gravimeters in Onsala. In addition to gravity recordings a number of calibration experiments were carried out to test the long-term stability of the meters. The linear calibration factor of both gravimeters is stable to 3 × 10-4. The drift of the gPhone-98 decreased over time and is currently reduced with a linear factor of ≈90 nm/s2 per day. The instrumental drift of Burris B-64 on the other hand can currently not be reduced with a linear factor.
ASJC Scopus Sachgebiete
- Erdkunde und Planetologie (insg.)
- Computer in den Geowissenschaften
- Erdkunde und Planetologie (insg.)
- Geophysik
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IAG 150 Years: Proceedings of the 2013 IAG Scientific Assembly. Hrsg. / Chris Rizos; Pascal Willis. Springer Verlag, 2015. S. 249-256 (International Association of Geodesy Symposia; Band 143).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Accuracy Estimation of the IfE Gravimeters Micro-g LaCoste gPhone-98 and ZLS Burris Gravity Meter B-64
AU - Schilling, Manuel
AU - Gitlein, Olga
N1 - Funding Information: This work was in part funded by the German Research Foundation (DFG, MU 1141/16-1). The Centre for Quantum Engineering and Space-Time-Research (QUEST) provided funding for the gPhone-98. The authors thank Hans-Georg Scherneck and the Onsala Space Observatory for hosting our instrument and providing gravity and environmental data, and the Leibniz Institute for Applied Geophysics for the cooperation in Hamburg.
PY - 2015/6/20
Y1 - 2015/6/20
N2 - Presently, modern spring gravimeters are the most flexible, technically simple, and comparatively cheap solution for recordings over extended time periods in contrast to superconducting gravimeters. We investigate the accuracy of the state-of-the-art spring gravimeters Micro-g LaCoste gPhone-98 and ZLS Burris Gravity Meter B-64 of the Institut für Erdmessung (IfE). With both instruments gravity was recorded for periods of several months at five stations with high and low microseismic noise. Simultaneous measurements with both instruments as well as the parallel recording of the ZLS Burris gravimeter with the GWR Instruments Observatory Superconducting Gravimeter OSG-054 in Onsala (Sweden) are investigated. Tidal analysis is used to assess the quality of the time series. Diurnal and semi-diurnal amplitude factors agree at the level of 1% and better from recordings of Burris and OSG gravimeters in Onsala. In addition to gravity recordings a number of calibration experiments were carried out to test the long-term stability of the meters. The linear calibration factor of both gravimeters is stable to 3 × 10-4. The drift of the gPhone-98 decreased over time and is currently reduced with a linear factor of ≈90 nm/s2 per day. The instrumental drift of Burris B-64 on the other hand can currently not be reduced with a linear factor.
AB - Presently, modern spring gravimeters are the most flexible, technically simple, and comparatively cheap solution for recordings over extended time periods in contrast to superconducting gravimeters. We investigate the accuracy of the state-of-the-art spring gravimeters Micro-g LaCoste gPhone-98 and ZLS Burris Gravity Meter B-64 of the Institut für Erdmessung (IfE). With both instruments gravity was recorded for periods of several months at five stations with high and low microseismic noise. Simultaneous measurements with both instruments as well as the parallel recording of the ZLS Burris gravimeter with the GWR Instruments Observatory Superconducting Gravimeter OSG-054 in Onsala (Sweden) are investigated. Tidal analysis is used to assess the quality of the time series. Diurnal and semi-diurnal amplitude factors agree at the level of 1% and better from recordings of Burris and OSG gravimeters in Onsala. In addition to gravity recordings a number of calibration experiments were carried out to test the long-term stability of the meters. The linear calibration factor of both gravimeters is stable to 3 × 10-4. The drift of the gPhone-98 decreased over time and is currently reduced with a linear factor of ≈90 nm/s2 per day. The instrumental drift of Burris B-64 on the other hand can currently not be reduced with a linear factor.
KW - GPhone
KW - Instrumental accuracy
KW - Relative gravimetry
KW - Tidal analysis
KW - Zls burris
UR - http://www.scopus.com/inward/record.url?scp=84984893083&partnerID=8YFLogxK
U2 - 10.15488/4151
DO - 10.15488/4151
M3 - Conference contribution
AN - SCOPUS:84984893083
SN - 9783319246031
T3 - International Association of Geodesy Symposia
SP - 249
EP - 256
BT - IAG 150 Years
A2 - Rizos, Chris
A2 - Willis, Pascal
PB - Springer Verlag
T2 - 150th Anniversary with a Scientific Assembly, IAG 2013
Y2 - 2 September 2013 through 6 September 2013
ER -