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GPS-PDR Project
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During the time span of more than a decade since the official start of the IGS (International GNSS Service) in 1994, considerable improvements in the processing strategies and modeling of global GPS solutions were achieved.
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Due to the changes at the individual IGS analysis centers during these years the resulting time series of global geodetic parameters are inhomogeneous and inconsistent. A geophysical interpretation of these long series and the realization of a high-accuracy global reference frame are therefore difficult and questionable. The GPS reprocessing project GPS-PDR (Potsdam Dresden Reprocessing), initiated by TU München and TU Dresden and continued by GFZ Potsdam and TU Dresden, provides selected products of a homogeneously reprocessed global GPS network such as GPS satellite orbits and Earth rotation parameters. If you decide to use the GPS-PDR reprocessing products, please refer to the publication by Steigenberger et al. (2006) given below in any publication or presentation.
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The following products can be retrieved and downloaded:
* Satellite Orbits - GPS-OG-3-FSO
SP3c format
Bernese Standard Orbit format (binary for Linux)
* Earth Rotation Parameters - GPS-ERP-3-FE
IERS format
Bernese ERP format
* GPS Satellite Problems - GPS-OG-3-SATCRX
Bernese CRX format
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All data files alternatively are available with the ISDC standard or the Bernese data file names. By default requests are limited to 1000 files or 1 GB within 24 hours. You can request a higher file-limit and more space via Edit your personal information.
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References:
Fritsche, M, R. Dietrich, C. Knöfel, A. Rülke, S. Vey, M. Rothacher, P.
Steigenberger (2005). Impact of higher-order ionospheric terms on GPS estimates. Geophysical Research Letters, Vol. 32, L23311, doi 10.1029/2005GL024342
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Schmid R., M. Rothacher, D. Thaller and P. Steigenberger (2005).
Absolute phase center corrections of satellite and receiver antennas.
GPS Solutions, Vol. 9, pp. 283-293, doi 10.1007/s10291-005-0134-x
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Steigenberger, P, M. Rothacher, R. Dietrich, M. Fritsche, A. Rülke, and S. Vey (2006). Reprocessing of a global GPS network. Journal of Geophysical Research. Vol. 111, B05402, doi 10.1029/2005JB003747
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Steigenberger, P., V. Tesmer, M. Krügel, D. Thaller, R. Schmid, S. Vey and M. Rothacher (2007) Comparisons of homogeneously reprocessed GPS and VLBI long time-series of troposphere zenith delays and gradients.
Journal of Geodesy, doi 10.1007/s00190-006-0124-y
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Vey, S., R. Dietrich, M. Fritsche, A. Rülke, M. Rothacher, P.
Steigenberger (2006). Influence of mapping function parameters on global GPS network analyses: Comparisons between NMF and IMF. Geophysical Research Letters, Vol. 33, L01814, doi 10.1029/2005GL024361
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New
Schmid, R., P. Steigenberger, G. Gendt, M. Ge and M. Rothacher (2007).
Generation of a consistent absolute phase center correction model for GPS receiver and satellite antennas. Journal of Geodesy,
doi 10.1007/s00190-007-0148-y
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This project was funded by Deutsche Forschungsgemeinschaft (DFG).
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Product Statistics |
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In ISDC archive are stored:
- 14.06 TB of data
- 22.95 Mio products
(update: 2010-02-09 02:46:07) |
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