Abstract
Coordinates of the Earth’s pole represent two out of five Earth orientation parameters describing Earth’s rotation. They are necessary in transformation between celestial reference frame and terrestrial reference frame and what goes further in precise positioning and navigation, applications in astronomy, communication with outer space objects. Complexity of measuring techniques and data processing involved in the pole coordinates determination make it impossible to obtain them in real-time mode, hence a prediction problem of the polar motion emerges. In this study, geostatistical prediction methods, i. e., simple and ordinary kriging are applied. Millions of predictions have been performed to draw reasonable conclusions on prediction capabilities of applied kriging variants. The study is intended in ultra-short-term prediction (up to 15 days into the future) using the IERS EOP 14 C04 (IAU2000A) and IERS EOP 05 C04 (IAU2000A) series as a reference. Mean absolute prediction errors (for days 1–15) with respect to IERS 14 C04 are ranging 0.66–5.25 mas for PMx and 0.47–3.59 mas for PMy. On the other hand, for IERS 05 C04 the values are 0.60–4.95 mas and 0.44–3.29 mas for PMx and PMy; respectively. The results indicate competitiveness of the introduced methods with existing ones.
Funding source: Akademia Górniczo-Hutnicza im. Stanislawa Staszica
Award Identifier / Grant number: 16.16.150.545
Funding statement: The paper is a result of research on geospatial methods carried out within the statutory research grant no. 16.16.150.545 at the Department of Integrated Geodesy and Cartography, AGH University of Science and Technology, Krakow.
Acknowledgment
The authors are very grateful to M. Kalarus for providing EOP PCC data.
Intermediate results are available at the website accompanied with this article home.agh.edu.pl/mmichalc.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Review
- Analysis of a kinematic real-time robotic total station network for robot control
- Research Articles
- Deformation analysis of a reference wall towards the uncertainty investigation of terrestrial laser scanners
- Investigating GNSS multipath effects induced by co-located Radar Corner Reflectors
- Temperature and humidity effects on CG-6 gravity observations
- Kriging-based prediction of the Earth’s pole coordinates
- Adjustment models for multivariate geodetic time series with vector-autoregressive errors
- Comparison of polar ionospheric behavior at Arctic and Antarctic regions for improved satellite-based positioning
Artikel in diesem Heft
- Frontmatter
- Review
- Analysis of a kinematic real-time robotic total station network for robot control
- Research Articles
- Deformation analysis of a reference wall towards the uncertainty investigation of terrestrial laser scanners
- Investigating GNSS multipath effects induced by co-located Radar Corner Reflectors
- Temperature and humidity effects on CG-6 gravity observations
- Kriging-based prediction of the Earth’s pole coordinates
- Adjustment models for multivariate geodetic time series with vector-autoregressive errors
- Comparison of polar ionospheric behavior at Arctic and Antarctic regions for improved satellite-based positioning