CHALMERS Institute’s report 2004-2005

2006-03-142006-03-14 Chalmers / Radio and Space / Space GeodesyChalmers / Radio and Space / Space Geodesy 11

CHALMERSCHALMERS

Institute’s report2004-2005

CHALMERSCHALMERS

Institute’s report2004-2005

Space Geodesy groupSpace Geodesy group

Department for Radio and Space ScienceDepartment for Radio and Space Science


ContentContent VLBI / CONT02: Sub-diurnal Earth rotation variationsVLBI / CONT02: Sub-diurnal Earth rotation variations VLBI / CONT02: Atmospheric GradientsVLBI / CONT02: Atmospheric Gradients VLBI: VLBI: Modeling of thermal deformation of radio telescopesModeling of thermal deformation of radio telescopes VLBI CONT05 campaignVLBI CONT05 campaign Analysis of European geodetic VLBI dataAnalysis of European geodetic VLBI data BIFROST / Crustal motion in FennoscandiaBIFROST / Crustal motion in Fennoscandia Ocean tide and Air pressure loadingOcean tide and Air pressure loading Contribution to the IVS TROP ProjectContribution to the IVS TROP Project GPS estimation errors: spatial and temporal correlation structureGPS estimation errors: spatial and temporal correlation structure GPS meteorology in the tropical climateGPS meteorology in the tropical climate Ground-based GPS data applied to weather forecasting (COST 716)Ground-based GPS data applied to weather forecasting (COST 716) Ground-based GPS water vapor tomographyGround-based GPS water vapor tomography GPS System ResearchGPS System Research


Sub-diurnal Earth rotation variationsSub-diurnal Earth rotation variations

VLBI CONT02: Analyse residual PM/UT1 with respect to VLBI CONT02: Analyse residual PM/UT1 with respect to Ray et alRay et al. (1994) . (1994) IERS model.IERS model.In subdiurnal band ~ 50% (20%) of total signal. Use Wavelets. In subdiurnal band ~ 50% (20%) of total signal. Use Wavelets. Find spectral power near SFind spectral power near S33, probably atmospheric origin. , probably atmospheric origin.

Results in Results in Haas et al. (2004)Haas et al. (2004)


Atmospheric LoadingAtmospheric Loading

Predicted effects and regression coefficients with respect to loacal pressure time series

Application: SLR

Report: Bock, Noomen and Scherneck, 2005


Ocean Tide LoadingOcean Tide Loading

The automatic loading provider The automatic loading provider http://www.oso.chalmers.se/~loadinghttp://www.oso.chalmers.se/~loading

News:News:

Using additionally 2 recent ocean tide modelsUsing additionally 2 recent ocean tide models

TPXO 7.0 (Oregon State University)TPXO 7.0 (Oregon State University)

FES2004 (CNES Toulouse, Letellier 2005) FES2004 (CNES Toulouse, Letellier 2005)

Remember:Remember:

11 coefficients M2 S2 N2 K2 K1 O1 P1 Q1 Mf Mm Ssa11 coefficients M2 S2 N2 K2 K1 O1 P1 Q1 Mf Mm Ssa

3+1 components (R, E, N, g)3+1 components (R, E, N, g)


Let: New solution - Right: New solution minus model


submitted to J. Geodesy:


COST 716COST 716Map: GPS stations in Europe contributing near-real time

= Processed at NKG-S/Onsala

Sweden: colaboration with SMHI and National Land Survey

Final report published (Elgered et al., 2005)

This year transferring processing to SMHI


GPS estimation errors: TOUGHGPS estimation errors: TOUGH TOUGH-Project TOUGH-Project (Targeting Optimal Use of GPS Humidity (Targeting Optimal Use of GPS Humidity

Measurements in Meteorology) is supported by the 5th Framework Measurements in Meteorology) is supported by the 5th Framework

Programme of the European CommissionProgramme of the European Commission.. GPS estimation errors: spatial and temporal correlation structureGPS estimation errors: spatial and temporal correlation structure http://dmiweb.dmi.dk/pub/tough/deliverables/d19-report.pdfhttp://dmiweb.dmi.dk/pub/tough/deliverables/d19-report.pdf (Stoew and (Stoew and

Elgered)Elgered)

Temporal correlation

GPS-WVR


Troposphere tomographyTroposphere tomography

9:00 UT 13:00 UTSimulation GPS / GPS+GALILIEO


Publications 2005Publications 2005 Askne, J., G. Elgered, B. Galle, D. Murtagh, G. Smith-Jonforsen, and L.M.H. Askne, J., G. Elgered, B. Galle, D. Murtagh, G. Smith-Jonforsen, and L.M.H.

UlanderUlanderRemote sensing at the department of Radio and Space Science, Chalmers University of Remote sensing at the department of Radio and Space Science, Chalmers University of Technology, Technology, IEEE Geosci. Rem. Sens. Soc. NewsletterIEEE Geosci. Rem. Sens. Soc. Newsletter, pp.11-18, September 2005., pp.11-18, September 2005.

Bergstrand, S., H.-G. Scherneck, G.A. Milne, J.M. JohanssonBergstrand, S., H.-G. Scherneck, G.A. Milne, J.M. JohanssonUpper mantle viscosity from continuous GPS baselines in Fennoscandia,Upper mantle viscosity from continuous GPS baselines in Fennoscandia,J. Geodynamics,J. Geodynamics, 3939, 91-109, 2005., 91-109, 2005.

Bergstrand, S., R. Emardson, P.O. Jarlemark and J.M. JohanssonBergstrand, S., R. Emardson, P.O. Jarlemark and J.M. JohanssonIonospheric Corrections for Accurate Positioning in Real Time, Ionospheric Corrections for Accurate Positioning in Real Time, in in Proc. Radio Science and Communication (RVK)Proc. Radio Science and Communication (RVK)eds. O. Gustafsson and P. Löwenborg, pp. 391--394. eds. O. Gustafsson and P. Löwenborg, pp. 391--394. Linköping, Sweden, June 14-16, 2005.Linköping, Sweden, June 14-16, 2005.

Bergstrand, S., H.-G. Scherneck, M. Lidberg and J.M. JohanssonBergstrand, S., H.-G. Scherneck, M. Lidberg and J.M. JohanssonBIFROST: A Comparison of Noise Properties in Various GPS Solutions, BIFROST: A Comparison of Noise Properties in Various GPS Solutions, submitted to submitted to J. of Geodesy J. of Geodesy / IAG/IAPSO/IABO Joint Assembly Proceedings, Cairns / IAG/IAPSO/IABO Joint Assembly Proceedings, Cairns 2005.2005.


Bock, D., R. Noomen, H.-G. ScherneckBock, D., R. Noomen, H.-G. ScherneckAtmospheric pressure loading displacement of SLR stationsAtmospheric pressure loading displacement of SLR stationsJ. Geodynamics,J. Geodynamics, 3939, 247-266, 2005., 247-266, 2005.

Elgered, G., H.-P. Plag, H. van der Marel, S. Barlag, and J. Nash (eds.)Elgered, G., H.-P. Plag, H. van der Marel, S. Barlag, and J. Nash (eds.)COST 716: Exploitation of Ground-Based GPS for Climate COST 716: Exploitation of Ground-Based GPS for Climate and Numerical Weather Prediction Applications, and Numerical Weather Prediction Applications, Final Report, European Community, EUR 21639, 2005.Final Report, European Community, EUR 21639, 2005.

Granström, C., and J.M. JohanssonGranström, C., and J.M. JohanssonThe influence of vegetation and multipath on GNSS signals, The influence of vegetation and multipath on GNSS signals, inin Proc. Radio Science and Communication (RVK), Proc. Radio Science and Communication (RVK), Linköping, Sweden, June 14--16, 2005, Linköping, Sweden, June 14--16, 2005, eds. O. Gustafsson and P. Löwenborg, pp. 385-390, 2005.eds. O. Gustafsson and P. Löwenborg, pp. 385-390, 2005.


Haas, R., Wünsch, J.Haas, R., Wünsch, J.Sub-diurnal Earth rotation variations from the VLBI CONT02 campaign. Sub-diurnal Earth rotation variations from the VLBI CONT02 campaign. J. of Geodynamics,J. of Geodynamics, in press, 2005. in press, 2005.

Haas, R., and G. ElgeredHaas, R., and G. ElgeredThe IVS Network Station Onsala Space ObservatoryThe IVS Network Station Onsala Space Observatoryin: in: International VLBI Service for Geodesy and Astrometry 2004 Annual ReportInternational VLBI Service for Geodesy and Astrometry 2004 Annual Report , , NASA/TP-2005-212772, eds. D. Behrend and K. D. Baver, pp. 93-96, 2005.NASA/TP-2005-212772, eds. D. Behrend and K. D. Baver, pp. 93-96, 2005.

Haas, R., Granström, C., Johansson, J.Haas, R., Granström, C., Johansson, J.An Investigation of Water Vapor Trends in Europe. An Investigation of Water Vapor Trends in Europe. In: In: Proc. of the 17'th Working Meeting on European VLBI for Proc. of the 17'th Working Meeting on European VLBI for Geodesy and Astrometry,Geodesy and Astrometry, 91-96, 2005. 91-96, 2005.

Haas, R., and H.-G. ScherneckHaas, R., and H.-G. ScherneckThe IVS The IVS AnalysisAnalysis Center at the Onsala Space Observatory Center at the Onsala Space Observatoryin: in: International VLBI Service for Geodesy and Astrometry 2004 Annual ReportInternational VLBI Service for Geodesy and Astrometry 2004 Annual Report , , NASA/TP-2005-212772, eds. D. Behrend and K. D. Baver, pp. 239-242, 2005.NASA/TP-2005-212772, eds. D. Behrend and K. D. Baver, pp. 239-242, 2005.

Nilsson, T., and G. ElgeredNilsson, T., and G. ElgeredThe IVS Technology Development Center at the Onsala Space ObservatoryThe IVS Technology Development Center at the Onsala Space Observatoryin: in: International VLBI Service for Geodesy and Astrometry 2004 Annual ReportInternational VLBI Service for Geodesy and Astrometry 2004 Annual Report , , NASA/TP-2005-212772, eds. D. Behrend and K. D. Baver, pp. 276-279, 2005.NASA/TP-2005-212772, eds. D. Behrend and K. D. Baver, pp. 276-279, 2005.


Nilsson, T., L. Gradinarsky and G. ElgeredNilsson, T., L. Gradinarsky and G. ElgeredCorrelations between slant wet delays measured by microwave radiometry", Correlations between slant wet delays measured by microwave radiometry", IEEE Trans. Geosci. Rem. Sens., IEEE Trans. Geosci. Rem. Sens., GE-43(5)GE-43(5), 1028-1035, 2005. , 1028-1035, 2005.

Nilsson, T., Nilsson, T., Assessment of Tomographic Methods for Estimation of Atmospheric Water Assessment of Tomographic Methods for Estimation of Atmospheric Water Vapor Using Ground-Based GPS, Vapor Using Ground-Based GPS, Technical Report No. 6L,Technical Report No. 6L, Licentiate Thesis, Department of Radio and Space Licentiate Thesis, Department of Radio and Space Science, Chalmers University of Technology, Göteborg, 2005. Science, Chalmers University of Technology, Göteborg, 2005.

Nilsson, T., L. Gradinarsky, and G. ElgeredNilsson, T., L. Gradinarsky, and G. ElgeredEstimating the 3D Structure of the Atmospheric Water Vapor using GPS Estimating the 3D Structure of the Atmospheric Water Vapor using GPS Phase Observations, Phase Observations, in in Proc. Radio Science and Communication (RVK)Proc. Radio Science and Communication (RVK), , Eds. O. Gustafsson and P. Löwenborg, pp. ?--?. Eds. O. Gustafsson and P. Löwenborg, pp. ?--?. Linköping, Sweden, June 14-16, 2005. Linköping, Sweden, June 14-16, 2005.

Nothnagel, A., Cho, J., Roy, A., Haas, R.Nothnagel, A., Cho, J., Roy, A., Haas, R.WVR calibrations applied to European VLBI observing sessions. WVR calibrations applied to European VLBI observing sessions. submitted to submitted to Journal of GeodesyJournal of Geodesy / IAG/IAPSO/IABO Joint Assembly / IAG/IAPSO/IABO Joint Assembly Proceedings, Cairns 2005. Proceedings, Cairns 2005.


Schuh, H., Boehm, J., Engelhardt, G., MacMillan, D., Lanotte, R., Schuh, H., Boehm, J., Engelhardt, G., MacMillan, D., Lanotte, R., Tomasi, P., Negusini, M., Vereshchaguina, I., Gubanov, V., Haas, R.Tomasi, P., Negusini, M., Vereshchaguina, I., Gubanov, V., Haas, R.Determination of tropospheric parameters within the new IVS Pilot Project. Determination of tropospheric parameters within the new IVS Pilot Project. In: F. Sansò (ed.) In: F. Sansò (ed.) A Window on the Future of Geodesy, A Window on the Future of Geodesy, International Association of Geodesy Symposia, International Association of Geodesy Symposia, Vol. 128Vol. 128, , 125-130, Springer Verlag, 2005.125-130, Springer Verlag, 2005.

Snajdrova, K., Boehm, J., Willis, P., Haas, R., Schuh, H.Snajdrova, K., Boehm, J., Willis, P., Haas, R., Schuh, H. Multi-technique comparison of tropospheric zenith delays derived during the Multi-technique comparison of tropospheric zenith delays derived during the CONT02 campaign. CONT02 campaign. J. of GeodesyJ. of Geodesy, in press, 2005. , in press, 2005.

Stoew, B., T. Nilsson, P. Jarlemark, and G. ElgeredStoew, B., T. Nilsson, P. Jarlemark, and G. ElgeredTemporal correlations of atmospheric mapping function errors in GPS data Temporal correlations of atmospheric mapping function errors in GPS data analysis, submitted to analysis, submitted to J. of GeodesyJ. of Geodesy, 2005. , 2005. Wresnik, J., Haas, R., Boehm, J., Schuh, H.Wresnik, J., Haas, R., Boehm, J., Schuh, H.Thermal deformation of VLBI antennas. Thermal deformation of VLBI antennas. In: In: Proc. of the 17'th Working Meeting on European VLBI for Proc. of the 17'th Working Meeting on European VLBI for Geodesy and Astrometry,Geodesy and Astrometry, 45-51, 2005. 45-51, 2005.

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CHALMERS Institute’s report 2004-2005