Details
| Original language | English |
|---|---|
| Title of host publication | International Symposium on Earth and Environmental Sciences for Future Generations - Proceedings of the IAG General Assembly |
| Editors | Laura Sanchez, Jeffrey T. Freymueller |
| Publisher | Springer Verlag |
| Pages | 237-243 |
| Number of pages | 7 |
| ISBN (print) | 9783319691695 |
| Publication status | Published - 1 Jan 2018 |
| Event | International Symposium on Earth and Environmental Sciences for Future Generations, 2015 - Prague, Czech Republic Duration: 22 Jun 2015 → 2 Jul 2015 |
Publication series
| Name | International Association of Geodesy Symposia |
|---|---|
| Volume | 147 |
| ISSN (Print) | 0939-9585 |
Abstract
Microwave space-geodetic observations such as Global Navigation Satellite Systems (GNSS) or Very Long Baseline Interferometry (VLBI) are delayed in the neutral atmosphere. In order to improve the quality of these techniques for precise applications like reference frame realisation, we need to get more knowledge about the temporal and spatial refractivity variations in the neutrosphere. In addition to the annually to hourly long periodic variations, which can be considered within the adjustment process, micro-scale meteorological phenomena in the range of minutes to sub-seconds affect space-geodetic observations as well. Thus, induced phase fluctuations of wavefronts passing through the turbulent medium form a significant error source for electromagnetic wave propagation.In order to identify high-frequency atmospheric effects, we analysed 1 Hz high-rate GPS observations from the continuous operating GNSS station at the Geodetic Observatory Wettzell and derived post-fit carrier phase residuals for several days with a Kalman-Filter based Precise Point Positioning (PPP) approach. Since undifferenced carrier phase observations contain a superposition of several effects, the computed power-law behaviour of the residuals might not follow the theoretically predicted stochastical behaviour for refractivity fluctuations. Hence, the influence of multipath was identified. A residual stacking was performed, and the reduced residuals were analysed with regard to turbulence characteristics.
Keywords
- Atmospheric turbulence, GNSS PPP, Multipath, Receiver clock modelling, Satellite clock interpolation
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Computers in Earth Sciences
- Earth and Planetary Sciences(all)
- Geophysics
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International Symposium on Earth and Environmental Sciences for Future Generations - Proceedings of the IAG General Assembly. ed. / Laura Sanchez; Jeffrey T. Freymueller. Springer Verlag, 2018. p. 237-243 (International Association of Geodesy Symposia; Vol. 147).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - PPP Carrier Phase Residual Stacking for Turbulence Investigations
AU - Kube, Franziska
AU - Schön, Steffen
N1 - Funding information: The authors thank the German Research Foundation (DFG) for its financial support (SCHO 1314/3-1) and the BKG for the GPS data at Wettzell. We further acknowledge the International GNSS Service (IGS) and the Center for Orbit Determination in Europe (CODE) for their products. The authors are very grateful to anonymous reviewers for their constructive comments and suggestions.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Microwave space-geodetic observations such as Global Navigation Satellite Systems (GNSS) or Very Long Baseline Interferometry (VLBI) are delayed in the neutral atmosphere. In order to improve the quality of these techniques for precise applications like reference frame realisation, we need to get more knowledge about the temporal and spatial refractivity variations in the neutrosphere. In addition to the annually to hourly long periodic variations, which can be considered within the adjustment process, micro-scale meteorological phenomena in the range of minutes to sub-seconds affect space-geodetic observations as well. Thus, induced phase fluctuations of wavefronts passing through the turbulent medium form a significant error source for electromagnetic wave propagation.In order to identify high-frequency atmospheric effects, we analysed 1 Hz high-rate GPS observations from the continuous operating GNSS station at the Geodetic Observatory Wettzell and derived post-fit carrier phase residuals for several days with a Kalman-Filter based Precise Point Positioning (PPP) approach. Since undifferenced carrier phase observations contain a superposition of several effects, the computed power-law behaviour of the residuals might not follow the theoretically predicted stochastical behaviour for refractivity fluctuations. Hence, the influence of multipath was identified. A residual stacking was performed, and the reduced residuals were analysed with regard to turbulence characteristics.
AB - Microwave space-geodetic observations such as Global Navigation Satellite Systems (GNSS) or Very Long Baseline Interferometry (VLBI) are delayed in the neutral atmosphere. In order to improve the quality of these techniques for precise applications like reference frame realisation, we need to get more knowledge about the temporal and spatial refractivity variations in the neutrosphere. In addition to the annually to hourly long periodic variations, which can be considered within the adjustment process, micro-scale meteorological phenomena in the range of minutes to sub-seconds affect space-geodetic observations as well. Thus, induced phase fluctuations of wavefronts passing through the turbulent medium form a significant error source for electromagnetic wave propagation.In order to identify high-frequency atmospheric effects, we analysed 1 Hz high-rate GPS observations from the continuous operating GNSS station at the Geodetic Observatory Wettzell and derived post-fit carrier phase residuals for several days with a Kalman-Filter based Precise Point Positioning (PPP) approach. Since undifferenced carrier phase observations contain a superposition of several effects, the computed power-law behaviour of the residuals might not follow the theoretically predicted stochastical behaviour for refractivity fluctuations. Hence, the influence of multipath was identified. A residual stacking was performed, and the reduced residuals were analysed with regard to turbulence characteristics.
KW - Atmospheric turbulence
KW - GNSS PPP
KW - Multipath
KW - Receiver clock modelling
KW - Satellite clock interpolation
UR - http://www.scopus.com/inward/record.url?scp=85037842376&partnerID=8YFLogxK
U2 - 10.1007/1345_2016_239
DO - 10.1007/1345_2016_239
M3 - Conference contribution
AN - SCOPUS:85037842376
SN - 9783319691695
T3 - International Association of Geodesy Symposia
SP - 237
EP - 243
BT - International Symposium on Earth and Environmental Sciences for Future Generations - Proceedings of the IAG General Assembly
A2 - Sanchez, Laura
A2 - Freymueller, Jeffrey T.
PB - Springer Verlag
T2 - International Symposium on Earth and Environmental Sciences for Future Generations, 2015
Y2 - 22 June 2015 through 2 July 2015
ER -