Results from the Third QDaedalus Astrogeodetic System Observation Campaign in the Mountainous Terrain of the Surses Region in Switzerland
Publication: Journal of Surveying Engineering
Volume 149, Issue 3
Abstract
This study presents the results of an astrogeodetic survey campaign conducted in the mountainous terrain of the Surses region in Switzerland. In our third astrogeodetic campaign using the QDaedalus system, we observed new deflections of the vertical (DoV) using three astrogeodetic systems. These observations were used to validate DoV data derived from the Global Gravity Model GGMplus and the Swiss Geoid model CHGeo2004. Astrogeodetic observations were conducted at 15 benchmarks (BMs) along the astrogeodetic profile over five nights in June 2021 at elevations ranging from 1,185 to 1,800 m and a station spacing of about 1 km. This is the first time two TS60 total station-based QDaedalus systems and one zenith telescope-based COmpact DIgital Astrometric Camera (CODIAC) system were used together for an astrogeodetic observation campaign. The standard deviations (SDs) of the QDaedalus system data for each session were 0.04″–0.22″ and 0.01″–0.20″ for the N–S and E–W components, respectively, while the SDs of the CODIAC system for each session were 0.02″ for both components. These high quality data were compared to DoV data derived from GGMplus and CHGeo2004. The N–S components from GGMplus exhibited large residuals ranging from to 1.75″, while the E–W component residuals are from to 1.80″. The residuals from CHGeo2004 range from to 1.21 for the N–S components and to 0.32 for the E–W components. These results show that the derived DoV data from CHGeo2004 are closer to the observed DoV and more accurate than the global GGMplus model that does not incorporate local gravity field data. The first and second astrogeodetic observation campaigns were conducted in the coastal terrain of Istanbul, Turkey and in the flat terrain in the Munich region, Germany, respectively. In this study, we provide an overall comparison of these previous results to the GGMplus residuals. Our latest results show that the GGMplus model is of higher quality in the Surses mountainous terrain than in the coastal terrain of Istanbul, while it is of lower quality than in the flat terrain of the Munich region.
Get full access to this article
View all available purchase options and get full access to this article.
Data Availability Statement
All data used in this study are shared with the readers of Journal of Surveying Engineering through the tables presented in this article. These data can be used with a proper citation of this article.
Acknowledgments
This research was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) 2219 international postdoctoral research fellowship program (Grant No. 1059B192000149) in Turkey, and the Haute Ecole d’Ingénierie et de Gestion du Canton de Vaud (HEIG-VD), the ETH Zurich and the Swiss Federal Office of Topography (swisstopo) in Switzerland. The authors would like to thank these institutions and their staff for their contributions and support. Special thanks go to the Institute of Geodesy and Photogrammetry at ETH Zurich’s Geodetic Project Course (GPC) study group members—Helena Laasch, Nathalie Ryter, Isabelle Steffen, Raphael Stauffer, and Reto Spannagel—for their tireless and highly engaged support of the fieldwork in the Surses region. The Istanbul and Munich astrogeodetic observations were previously supported by TUBITAK project (Project No. 115Y237, Ozludemir 2018), and TUBITAK 2214-A grant program (Grant No. 1059B141601200), respectively. Finally, the authors would like to thank the two anonymous reviewers for their constructive comments and suggestions, which have greatly improved the paper.
References
Albayrak, M., et al. 2019. “The use of the automated digital zenith camera system in Istanbul for the determination of astrogeodetic vertical deflection.” Bol. Cienc. Geod. 25 (4): e2019025. https://doi.org/10.1590/s1982-21702019000400025.
Albayrak, M., et al. 2021. “Validation of GGMplus and CHGeo2004 using observed deflection of the vertical data from QDaedalus and CODIAC systems in the mountainous terrain of the Surses region, Switzerland.” In Proc., AGU Fall Meeting 2021 Abstracts (G33A-01). Washington, DC: American Geophysical Union.
Albayrak, M., C. Hirt, S. Guillaume, K. Halicioglu, M. T. Özlüdemir, and C. K. Shum. 2020a. “Quality assessment of global gravity models in coastal zones: A case study using astrogeodetic vertical deflections in Istanbul, Turkey.” Stud. Geophys. Geod. 64 (3): 306–329. https://doi.org/10.1007/s11200-019-0591-2.
Albayrak, M., D. Willi, and S. Guillaume. 2023. “Field comparison of the total station-based QDaedalus and the zenith telescope-based CODIAC astrogeodetic systems for measurements of the deflection of the vertical.” Surv. Rev. 55 (390): 247–259. https://doi.org/10.1080/00396265.2022.2054108.
Albayrak, M., E. Zeray Öztürk, İ. Ö. Bildirici, C. Hirt, S. Guillaume, and C. K. Shum. 2020b. “Almanya Münih Bölgesinde QDaedalus sistemi ile gözlemlenen astrojeodezik çekül sapma verilerinin GGMplus ve EGM2008 ile kestirilen değerlerle karşılaştırılması.” Yerbilimleri 41 (3): 220–246. https://doi.org/10.17824/yerbilimleri.740141.
Altamimi, Z., P. Rebischung, L. Metivier, and X. Collilieux. 2016. “ITRF2014: A new release of the international terrestrial reference frame modeling nonlinear station motions.” J. Geophys. Res. Solid Earth 121 (8): 6109–6163. https://doi.org/10.1002/2016JB013098.
Andersen, O. B., and P. Knudsen. 2009. “DNSC08 mean sea surface and mean dynamic topographymodels.” J. Geophys. Res. Oceans 114 (Nov): C11001. https://doi.org/10.1029/2008JC005179.
Andersen, O. B., P. Knudsen, and P. A. Berry. 2010. “The DNSC08GRA global marine gravity field from double retracked satellite altimetry.” J. Geod. 84 (Mar): 191–199. https://doi.org/10.1007/s00190-009-0355-9.
Bürki, B., et al. 2010. “DAEDALUS: A versatile usable digital clip-on measuring system for total stations.” In Proc., Int. Conf. on Indoor Positioning and Indoor Navigation (IPIN), 1–10. New York: IEEE.
Bürki, B., A. Müller, and H. G. Kahle. 2004. “DIADEM: The new digital astronomical deflection measuring system for high-precision measurements of deflections of the vertical at ETH Zurich.” In Proc., IAG GGSM2004 Meeting. Wabern, Schweiz: Bundesamt für Landestopographie (swisstopo).
Featherstone, W. E., and R. Goyal. 2023. “Digitisation and analysis of historical vertical deflections in India.” Surv. Rev. 55 (390): 268–273. https://doi.org/10.1080/00396265.2022.2088016.
Featherstone, W. E., and D. D. Lichti. 2009. “Fitting gravimetric geoid models to vertical deflections.” J. Geod. 83 (Sep): 583–589. https://doi.org/10.1007/s00190-008-0263-4.
Featherstone, W. E., and J. G. Olliver. 2013. “Assessment of EGM2008 over Britain using vertical deflections, and problems with historical data.” Surv. Rev. 45 (332): 319–324. https://doi.org/10.1179/1752270613Y.0000000048.
GPC Project. 2021. Geodetic and gravity network determination. Zürich, Switzerland: ETH Zürich.
Guillaume, S., et al. 2012. “QDaedalus: Augmentation of total stations by CCD sensor for automated contactless highprecision metrology.” In Proc., FIG Working Week, 1–15. Rome: International Federation of Surveyors.
Guillaume, S. 2015. “Determination of a precise gravity field for the CLIC feasibility studies.” Ph.D. thesis, Eidgenössische Technische Hochschule (ETH) Zurich. https://doi.org/10.3929/ethz-a-010549038.
Guillaume, S., et al. 2016. “Contribution of the image-assisted theodolite system QDaedalus to geodetic static and dynamic deformation monitoring.” In Proc., 3rd Joint Int. Symp. on Deformation Monitoring (JISDM). Copenhagen, Denmark: International Federation of Surveyors.
Halıcıoglu, K., R. Deniz, and H. Ozener. 2016. “Digital astro-geodetic camera system for the measurement of the deflections of the vertical: Tests and results.” Int. J. Digital Earth 9 (9): 914–923. https://doi.org/10.1080/17538947.2016.1189612.
Hardy, R., et al. 2021. “Performance assessment of the total station astrogeodetic control system (TSACS).” In Proc., AGU Fall Meeting 2021 Abstracts (G33A-02). Washington, DC: American Geophysical Union.
Hauk, M., C. Hirt, and C. Ackermann. 2017. “Experiences with the QDaedalus system for astrogeodetic determination of deflections of the vertical.” Surv. Rev. 49 (355): 294–301. https://doi.org/10.1080/00396265.2016.1171960.
Heiskanen, W. A., and H. Moritz. 1984. Physical geodesy. Graz, Austria: Institute of Physical Geodesy, Technical Univ. Graz.
Hirt, C. 2004. “Entwicklung und Erprobung eines digitalen Zenitkamerasystems für die hochpräzise Lotabweichungsbestimmung.” [In German.] Ph.D. thesis, Wissen. Arb. Fach. Vermessungswesen, Univ. Hannover.
Hirt, C., et al. 2010. “Assessment of EGM2008 in Europe using accurate astrogeodetic vertical deflections and omission error estimates from SRTM/DTM2006.0 residual terrain model data.” J. Geophys. Res. Solid Earth 115 (Oct): B10404. https://doi.org/10.1029/2009JB007057.
Hirt, C., et al. 2013. “New ultra high-resolution picture of Earth’s gravity field.” Geophys. Res. Lett. 40 (Mar): 4279–4283. https://doi.org/10.1002/grl.50838.
Hirt, C., and G. Seeber. 2008. “Accuracy analysis of vertical deflection data observed with the hannover digital zenith camera system TZK2-D.” J. Geod. 82 (6): 347–356. https://doi.org/10.1007/s00190-007-0184-7.
Jekeli, C. 1999. “An analysis of vertical deflections derived from high-degree spherical harmonic models.” J. Geod. 73 (1): 10–22. https://doi.org/10.1007/s001900050213.
Marti, U. 2007. “Comparison of high precision geoid models in Switzerland.” In Vol. 130 of Proc., Int. Association of Geodesy Symp., Dynamic Planet, edited by P. Tregoning and C. Rizos. Berlin: Springer. https://doi.org/10.1007/978-3-540-49350-1_55.
Marti, U. 2016. Aufbau der neuen Landesvermessung der Schweiz ’LV95’—Das Geoid der Schweiz 2004 “CHGeo2004”, swisstopo Doku 22. Wabern, Switzerland: Federal Office of Topography swisstopo.
Ozludemir, M. T. 2018. Astro-jeodezik ve GNSS/Nivelman verilerinin entegrasyonu ile yerel geoit modellemesi (Local geoid modelling using integrated astro-geodetic and GNSS/Leveling data). Ankara, Turkey: Scientific and Technological Research Council of Turkey.
Pavlis, N. K., et al. 2012. “The development and evaluation of the earth gravitational model 2008 (EGM2008).” J. Geophys. Res. Solid Earth 117 (Apr): B04406. https://doi.org/10.1029/2011JB008916.
Robbins, A. R. 1951. “Deviation of the vertical.” Empire Surv. Rev. 11 (79): 28–36. https://doi.org/10.1179/sre.1951.11.79.28.
Soler, T., and J.-Y. Han. 2021. “Rapid prediction of vertical deflections and their statistics for surveying and mapping applications: Three case studies.” J. Surv. Eng. 147 (4): 04021021. https://doi.org/10.1061/(ASCE)SU.1943-5428.0000376.
Somieski, A. E. 2008. “Astrogeodetic geoid and isostatic considerations in the North Aegean Sea, Greece.” Ph.D. thesis, Eidgenössische Technische Hochschule (ETH) Zurich. https://doi.org/10.3929/ethz-a-005710420.
Torge, W., and J. Müller. 2012. Geodesy. 4th ed. Berlin: De Gruyter.
Voigt, C. 2013. “Astrogeodatische lotabweichungen zur validierung von schwerefeldmodellen.” Ph.D. thesis, Fachrichtung Geodäsie und Geoinformatik: Wissenschaftliche Arbeiten der Fachrichtung Geodäsie und Geoinformatik der Leibniz-Universität Hannover, Universität Hannover.
Willi, D., and S. Guillaume. 2019. “Calibration of a six-axis robot for GNSS antenna phase center estimation.” J. Surv. Eng. 145 (4): 04019016. https://doi.org/10.1061/(ASCE)SU.1943-5428.0000291.
Zariņš, A., A. Rubans, and G. Silabriedis. 2018. “Performance analysis of Latvian zenith camera.” Geod. Cartogr. 44 (1): 1–5. https://doi.org/10.3846/gac.2018.876.
Information & Authors
Information
Published In
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Sep 10, 2022
Accepted: Jan 13, 2023
Published online: May 19, 2023
Published in print: Aug 1, 2023
Discussion open until: Oct 19, 2023
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.