Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 1681-1690 |
| Seitenumfang | 10 |
| Fachzeitschrift | Advances in space research |
| Jahrgang | 47 |
| Ausgabenummer | 10 |
| Publikationsstatus | Veröffentlicht - 15 Sept. 2010 |
Abstract
In this paper, a turbulence theory-based simulation procedure for slant tropospheric delay variations is presented. Based on this procedure tropospheric delay variations are simulated for three different geometric scenarios. The stochastic behaviour of the generated time series is assessed in terms of temporal structure functions. It is shown that the temporal structure functions - in general - follow a 5/3 to 2/3 power-law behaviour. Deviations from this behaviour due to the complex interaction between varying observation geometry and atmospheric/turbulent conditions are discussed. In addition to simulated slant delay variations, zenith tropospheric delays of a specially designed Global Positioning System (GPS) network are estimated by 'Precise Point Positioning'. Both their temporal and spatial structure functions are computed and compared with their theoretically predicted behaviour. For the temporal behaviour of real tropospheric delay time series, we found an initial 5/3 power-law behaviour and correlation lengths of approximately 2000 s. The spatial behaviour of ZTDs of the 16 km straight line network showed a 2/3 power-law behaviour, indicating two-dimensional turbulence processes.
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in: Advances in space research, Jahrgang 47, Nr. 10, 15.09.2010, S. 1681-1690.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Temporal and spatial stochastic behaviour of high-frequency slant tropospheric delays from simulations and real GPS data
AU - Vennebusch, Markus
AU - Schön, Steffen
AU - Weinbach, Ulrich
N1 - Funding information: The authors warmly thank Fritz K. Brunner (IGMS, TU Graz) for fruitful discussions and the permission to use the Seewinkel data in this study. The authors also thank the German Research Foundation (Deutsche Forschungsgemeinschaft) for its financial support ( SCHO 1314/1-1 ). Finally, the authors thank the three anonymous reviewers for their valuable comments.
PY - 2010/9/15
Y1 - 2010/9/15
N2 - In this paper, a turbulence theory-based simulation procedure for slant tropospheric delay variations is presented. Based on this procedure tropospheric delay variations are simulated for three different geometric scenarios. The stochastic behaviour of the generated time series is assessed in terms of temporal structure functions. It is shown that the temporal structure functions - in general - follow a 5/3 to 2/3 power-law behaviour. Deviations from this behaviour due to the complex interaction between varying observation geometry and atmospheric/turbulent conditions are discussed. In addition to simulated slant delay variations, zenith tropospheric delays of a specially designed Global Positioning System (GPS) network are estimated by 'Precise Point Positioning'. Both their temporal and spatial structure functions are computed and compared with their theoretically predicted behaviour. For the temporal behaviour of real tropospheric delay time series, we found an initial 5/3 power-law behaviour and correlation lengths of approximately 2000 s. The spatial behaviour of ZTDs of the 16 km straight line network showed a 2/3 power-law behaviour, indicating two-dimensional turbulence processes.
AB - In this paper, a turbulence theory-based simulation procedure for slant tropospheric delay variations is presented. Based on this procedure tropospheric delay variations are simulated for three different geometric scenarios. The stochastic behaviour of the generated time series is assessed in terms of temporal structure functions. It is shown that the temporal structure functions - in general - follow a 5/3 to 2/3 power-law behaviour. Deviations from this behaviour due to the complex interaction between varying observation geometry and atmospheric/turbulent conditions are discussed. In addition to simulated slant delay variations, zenith tropospheric delays of a specially designed Global Positioning System (GPS) network are estimated by 'Precise Point Positioning'. Both their temporal and spatial structure functions are computed and compared with their theoretically predicted behaviour. For the temporal behaviour of real tropospheric delay time series, we found an initial 5/3 power-law behaviour and correlation lengths of approximately 2000 s. The spatial behaviour of ZTDs of the 16 km straight line network showed a 2/3 power-law behaviour, indicating two-dimensional turbulence processes.
KW - Atmospheric turbulence
KW - GNSS
KW - Simulation
KW - Slant tropospheric delays
KW - Stochastic processes
UR - http://www.scopus.com/inward/record.url?scp=79954419933&partnerID=8YFLogxK
U2 - 10.1016/j.asr.2010.09.008
DO - 10.1016/j.asr.2010.09.008
M3 - Article
AN - SCOPUS:79954419933
VL - 47
SP - 1681
EP - 1690
JO - Advances in space research
JF - Advances in space research
SN - 0273-1177
IS - 10
ER -