Tobias Nilsson

Publikationer (42)
Projekt (0)

Visar 42 publikationer

2023

Onsala Space Observatory – IVS Analysis Center Activities During 2021–2022, in International VLBI Service for Geodesy and Astrometry 2021+2022 Biennial Report, edited by K. L. Armstrong, D. Behrend, and K. D. Baver, NASA/TP-20230014975

Rüdiger Haas, Eskil Varenius, Rebekka Handirk et al

Rapport - NASA Goddard Space Flight Center

2023

Obtaining Local-Tie Vectors from Short-Baseline Interferometry

Rebekka Handirk, Eskil Varenius, Tobias Nilsson et al

IVS 2022 General Meeting Proceedings. Vol. 1 (NASA/CP-20220018789), p. 134-138

Paper i proceeding

2022

Comparison of four different GNSS antenna installations using estimated atmospheric gradients and microwave radiometry

Gunnar Elgered, Tong Ning, Periklis Diamantidis et al

Övrigt konferensbidrag

2012

Zenith troposphere delays and gradients from VLBI, GNSS, DORIS, water vapor radiometer, and numerical weather models during continuous VLBI campaigns

Kamil Teke, Tobias Nilsson, Johannes Böhm et al

AGU Fall Meeting 2012

Poster (konferens)

2010

Onsala Space Observatory - IVS Analysis Center

Rüdiger Haas, Gunnar Elgered, Hans-Georg Scherneck et al

IVS 2009 Annual Report, p. 267-270

Artikel i övrig tidskrift

2010

Impact of atmospheric turbulence on geodetic very long baseline interferometry

Tobias Nilsson, Rüdiger Haas

Journal of Geophysical Research. Vol. 115 (B03407), p. 1-11

Artikel i vetenskaplig tidskrift

2010

Evaluation of climate models using ground-based GNSS observations

Gunnar Elgered, Tong Ning, Jan Johansson et al

Proceedings of the 16th General Assembly of the Nordic Geodetic Commission, p. 107-114

Övrigt konferensbidrag

2009

Measurement accuracy in Network-RTK

Ragne Emardson, P. Jarlemark, S. Bergstrand et al

Rapport

2009

Progress Report of the IVS VLBI2010 Committee

Bill Petrachenko, Arthur Niell, Dirk Behrend et al

In: International VLBI Service for Geodesy and Astrometry 2008 Annual Report, edited by D. Behrend and K. Baver. Vol. NASA/TP-2009-214183, 2009, p. 13-67

Artikel i övrig tidskrift

2009

Using ground-based GPS to characterize atmospheric turbulence

Tobias Nilsson, J.L. Davis, E.M. Hill

Geophysical Research Letters. Vol. 36 (16)

Artikel i vetenskaplig tidskrift

2009

Onsala Space Observatory – IVS Analysis Center

Rüdiger Haas, Hans-Georg Scherneck, Tobias Nilsson

International VLBI Service for Geodesy and Astrometry 2008 Annual Report, edited by D. Behrend and K. Baver. Vol. NASA/TP-2009-214183, p. 295-298

Kapitel i bok

2009

Design Aspects of the VLBI2010 System

Bill Petrachenko, Arthur Niell, Dirk Behrend et al

Rapport

2009

An Assessment of Atmospheric Turbulence for CONT05 and CONT08

Tobias Nilsson, Rüdiger Haas

Proceedings of the 19th European VLBI for Geodesy and Astrometry Working Meeting, 24-25 March 2009, Bordeaux, p. 39-43

Övrigt konferensbidrag

2009

Atmospheric VLBI: A method to validate long time series of water vapour content

Gunnar Elgered, Rüdiger Haas, Tobias Nilsson

Proceedings of the 19th European VLBI for Geodesy and Astrometry Working Meeting, 24-25 March 2009, Bordeaux, p. 49-53

Övrigt konferensbidrag

2009

Validation of climate models using European ground-based GNSS observations

Gunnar Elgered, Ragne Emardson, P. Jarlemark et al

Proc. of 2nd Colloquium Scientific and Fundamental Aspects of the Galileo Programme, European Space Agency, 15-19 October, 2009, Padua, Italy. Vol. CD ROM

Övrigt konferensbidrag

2008

Atmospheric Water Vapor Content Inferred From GPS Data and Compared to a Global NWP Model and a Regional Climate Model

Tong Ning, Tobias Nilsson, Jan Johansson et al

2008.10

Poster (konferens)

2008

The impact of the electromagnetic environment of the antenna on GPS

Tong Ning, Tobias Nilsson, Jan Johansson et al

2008.05

Poster (konferens)

2008

Modeling Tropospheric Delays with Atmospheric Turbulence Models

Tobias Nilsson, Rüdiger Haas

in Proceedings of the Fifth IVS General Meeting: "Measuring the Future", eds. A. Finkelstein, D. Behrend, p. 361-370

Övrigt konferensbidrag

2008

The IVS Analysis Center at the Onsala Space Observatory

Rüdiger Haas, Hans-Georg Scherneck, Tobias Nilsson

International VLBI Service for Geodesy and Astrometry 2007 Annual Report, edited by D. Behrend and K. Baver. Vol. NASA/TP-2008-214162, p. 228-231

Övrigt konferensbidrag

2008

Assessment of using GNSS for the monitoring of the atmospheric water vapour content over long time scales

Gunnar Elgered, Tobias Nilsson, U Willén

Proceedings of: 1st Colloquium Scientific and Fundamental Aspects of the Galileo Programme, 1-4 October, 2007, Cité de lEspace, Toulouse, France, Final Proceedings, CD-ROM publication, ESA.

Artikel i övrig tidskrift

2008

Recent Progress in the VLBI2010 Development

Dirk Behrend, Johannes Böhm, Patrick Charlot et al

in Proceedings of the 2007 IAG General Assembly, Perugia, Italy, July 2-13, 2007, ed. M. Sideris, Springer. Vol. 133 (Part 5), p. 833-840

Paper i proceeding

2008

Long-term trends in the atmospheric water vapor content estimated from ground-based GPS data

Tobias Nilsson, Gunnar Elgered

Journal of Geophysical Research. Vol. 113 (D19)

Artikel i vetenskaplig tidskrift

2008

Measuring and modelling variations in the distribution of atmospheric water vapour using GPS

Tobias Nilsson

Doktorsavhandling

2008

Improving GNSS tropospheric tomography by better knowledge of atmospheric turbulence

Tobias Nilsson

Proceedings of: 1st Colloquium Scientific and Fundamental Aspects of the Galileo Programme, 1-4 October, 2007, Cité de lEspace, Toulouse, France, Final Proceedings, CD-ROM publication, ESA.

Artikel i övrig tidskrift

2007

The IVS Technology Development Center at the Onsala Space Observatory

Rüdiger Haas, MAGNE HAGSTRÖM, Tobias Nilsson et al

International VLBI Service for Geodesy and Astrometry 2006 Annual Report, edited by D. Behrend and K. Baver, NASA/TP-2007-214151, p. 263-265

Övrigt konferensbidrag

2007

Simulations of atmospheric path delays using turbulence models

Tobias Nilsson, Rüdiger Haas, Gunnar Elgered

Proceedings of the 18th European VLBI for Geodesy and Astrometry Working Meeting, edited by J. Böhm, A. Pany, and H. Schuh, Geowissenschaftliche Mitteilungen, Schriftenreihe der Studienrichtung Vermessung und Geoinformation, Technische Universität Wien (79), p. 175-180

Övrigt konferensbidrag

2007

The IVS Analysis Center at the Onsala Space Observatory

Rüdiger Haas, Hans-Georg Scherneck, Tobias Nilsson

International VLBI Service for Geodesy and Astrometry 2006 Annual Report, edited by D. Behrend and K. Baver, NASA/TP-2007-214151, p. 224-227

Övrigt konferensbidrag

2007

Temporal correlations of atmospheric mapping function errors in GPS data analysis

Borys Stoew, Tobias Nilsson, Gunnar Elgered et al

Journal of Geodesy. Vol. 81 (5), p. 311-323

Artikel i vetenskaplig tidskrift

2007

Estimating Climate Trends Using GPS

Tobias Nilsson, Gunnar Elgered, Jan Johansson et al

Proceedings of the Fifth Study Conference on BALTEX, Ed. H.J. Isemer, International BALTEX Secretariat, GKSS Research Center, Geesthacht, Germany (38), p. 15-16

Övrigt konferensbidrag

2007

Water vapour tomography using GPS phase observations: Results from the ESCOMPTE experiment

Tobias Nilsson, Lubomir Gradinarsky, Gunnar Elgered

Tellus. Vol. 59A, p. 674-682

Artikel i vetenskaplig tidskrift

2007

Measurements of Atmospheric Scintillations Induced by Water Vapor

Tobias Nilsson, Lubomir Gradinarsky, Gunnar Elgered

Proceedings of the Seventh International Conference on Electromagnetic Wave Interaction with Water and Moist Substances ISEMA 2007, Ed. Seichi Okamura, p. 259-264

Övrigt konferensbidrag

2006

Water Vapor Tomography Using GPS Phase Observations: Simulation Results

Tobias Nilsson, L. Gradinarsky

IEEE Trans. on Geosci. and Rem. Sens.. Vol. 44 (10), p. 2927-2941

Artikel i vetenskaplig tidskrift

2006

Characterizing Atmospheric Turbulence and Instrumental Noise Using Two Simultaneously Operating Microwave Radiometers

Tobias Nilsson, Gunnar Elgered, L Gradinarsky

Proc. 9:th Specialist Meeting on Microwave Radiometry and Remote Sensing Applications, MicroRad 2006, p. 270- 275

Övrigt konferensbidrag

2006

The IVS Technology Development Center at the Onsala Space Observatory

Tobias Nilsson, Gunnar Elgered, Rüdiger Haas

IVS 2005 Annual Report, NASA/TP-2006-214136, p. 294-297

Övrigt konferensbidrag

2005

The IVS Technology Development Center at the Onsala Space Observatory

Tobias Nilsson, Gunnar Elgered

Rapport

2005

Correlations Between Slant Wet Delays Measured by Microwave Radiometry

Tobias Nilsson, L. Gradinarsky, Gunnar Elgered

IEEE Trans. Geosci. Rem. Sens., GE-43(5), p. 1028-1035

Artikel i vetenskaplig tidskrift

2005

Assessment of Tomographic Methods for Estimation of Atmospheric Water Vapor Using Ground-Based GPS

Tobias Nilsson

Licentiatavhandling

2005

Estimating the 3D Structure of the Atmospheric Water Vapor using GPS Phase Observations

Tobias Nilsson, Gunnar Elgered

in Proc. Radio Science and Communication (RVK), eds. O. Gustafsson, P. Löwenborg, Linköping, Sweden, June 14--16, p. 276-279

Paper i proceeding

2005

Estimating the 3D Structure of the Atmospheric Water Vapor using GPS Phase Observations

Tobias Nilsson, L. Gradinarsky, Gunnar Elgered

in Proc. Radio Science and Communication (RVK), eds. O. Gustafsson, P. Löwenborg, Linköping, Sweden, June 14--16, p. 521-526

Övrigt konferensbidrag

2004

Correlations Between Slant Wet Delays Measured by Microwave Radiometry

Tobias Nilsson, Lubomir Gradinarsky, Gunnar Elgered

in Proceedings of the 8th Specialist Meeting on Microwave Radiometry and Remote Sensing Applications, Feb, 2004, Rome, eds. N. Pierdicca and F.S. Marzano, p. 24-27

Övrigt konferensbidrag

2004

IVS Technical Development Center Onsala Space Observatory, in International VLBI Service for Geodesy and Astrometry 2003 Annual Report, NASA TP-2004-212254, eds. N.R. Vandenberg and K.D. Baver

Tobias Nilsson, Gunnar Elgered

Rapport

2004

GPS Tomography Using Phase Observations

Tobias Nilsson, Lubomir Gradinarsky, Gunnar Elgered

Geoscience and Remote Sensing Symposium, 2004. IGARSS 04 Proceedings, 2004 IEEE International. Vol. IV, p. 2756-2759

Övrigt konferensbidrag

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