Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Geodesy for Planet Earth |
| Untertitel | Proceedings of the 2009 IAG Symposium |
| Seiten | 801-807 |
| Seitenumfang | 7 |
| Publikationsstatus | Veröffentlicht - 26 Juli 2011 |
| Veranstaltung | IAG Symposium on Geodesy for Planet Earth, IAG 2009 - Chania, Crete, Argentinien Dauer: 31 Aug. 2009 → 4 Sept. 2009 |
Publikationsreihe
| Name | International Association of Geodesy Symposia |
|---|---|
| Band | 136 |
| ISSN (Print) | 0939-9585 |
Abstract
GNSS phase observations are well suited to study atmospheric refraction effects and to contribute to weather prediction. Current research activities focus on real time determination of slant tropospheric wet delays in order to determine the water vapor content. The long periodic variations of these delays are mainly caused by the steady state component of the refractive index field. In contrast, short periodic variations of the slant delays are induced by refractivity fluctuations along the signal's path from the transmitter to the receiver. Focusing on higher temporal resolution of water vapor variations, this second component will be of special interest. Based on turbulence theory, Schön and Brunner (J Geodes 82(1): 47-57) developed a formulation of the variances and covariances of GNSS phase observations induced by refractivity fluctuations in the troposphere. In this paper, we will use this model to investigate the generation of slant delay time series based on a spectral decomposition of the simulated turbulence theory-based variance-covariance matrices. Using an exemplary GPS configuration, the impact of the model parameters (as e.g. the refractivity structure constant, the outer scale length, the effective tropospheric height, and the wind direction and magnitude) on the covariance matrix and the generated time series is analysed.
ASJC Scopus Sachgebiete
- Erdkunde und Planetologie (insg.)
- Computer in den Geowissenschaften
- Erdkunde und Planetologie (insg.)
- Geophysik
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Geodesy for Planet Earth: Proceedings of the 2009 IAG Symposium. 2011. S. 801-807 (International Association of Geodesy Symposia; Band 136).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Generation of Slant Tropospheric Delay Time Series Based on Turbulence Theory
AU - Vennebusch, M.
AU - Schön, S.
N1 - Funding information: The authors thank the German Research Foundation (Deutsche Forschungsgemeinschaft) for its financial support (SCHO 1314/1-1).
PY - 2011/7/26
Y1 - 2011/7/26
N2 - GNSS phase observations are well suited to study atmospheric refraction effects and to contribute to weather prediction. Current research activities focus on real time determination of slant tropospheric wet delays in order to determine the water vapor content. The long periodic variations of these delays are mainly caused by the steady state component of the refractive index field. In contrast, short periodic variations of the slant delays are induced by refractivity fluctuations along the signal's path from the transmitter to the receiver. Focusing on higher temporal resolution of water vapor variations, this second component will be of special interest. Based on turbulence theory, Schön and Brunner (J Geodes 82(1): 47-57) developed a formulation of the variances and covariances of GNSS phase observations induced by refractivity fluctuations in the troposphere. In this paper, we will use this model to investigate the generation of slant delay time series based on a spectral decomposition of the simulated turbulence theory-based variance-covariance matrices. Using an exemplary GPS configuration, the impact of the model parameters (as e.g. the refractivity structure constant, the outer scale length, the effective tropospheric height, and the wind direction and magnitude) on the covariance matrix and the generated time series is analysed.
AB - GNSS phase observations are well suited to study atmospheric refraction effects and to contribute to weather prediction. Current research activities focus on real time determination of slant tropospheric wet delays in order to determine the water vapor content. The long periodic variations of these delays are mainly caused by the steady state component of the refractive index field. In contrast, short periodic variations of the slant delays are induced by refractivity fluctuations along the signal's path from the transmitter to the receiver. Focusing on higher temporal resolution of water vapor variations, this second component will be of special interest. Based on turbulence theory, Schön and Brunner (J Geodes 82(1): 47-57) developed a formulation of the variances and covariances of GNSS phase observations induced by refractivity fluctuations in the troposphere. In this paper, we will use this model to investigate the generation of slant delay time series based on a spectral decomposition of the simulated turbulence theory-based variance-covariance matrices. Using an exemplary GPS configuration, the impact of the model parameters (as e.g. the refractivity structure constant, the outer scale length, the effective tropospheric height, and the wind direction and magnitude) on the covariance matrix and the generated time series is analysed.
UR - http://www.scopus.com/inward/record.url?scp=84884328609&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-20338-1_101
DO - 10.1007/978-3-642-20338-1_101
M3 - Conference contribution
AN - SCOPUS:84884328609
SN - 9783642203374
T3 - International Association of Geodesy Symposia
SP - 801
EP - 807
BT - Geodesy for Planet Earth
T2 - IAG Symposium on Geodesy for Planet Earth, IAG 2009
Y2 - 31 August 2009 through 4 September 2009
ER -