Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Andreas Knöpfler"'
1
Accurate Estimation of Atmospheric Water Vapor Using GNSS Observations and Surface Meteorological Data
Autor: Fadwa Alshawaf, Bernhard Heck, Stefan Hinz, Michael Mayer, Andreas Knöpfler, Thomas Fuhrmann, Xiaoguang Luo
Publikováno v: IEEE Transactions on Geoscience and Remote Sensing. 53:3764-3771
Remote sensing data have been increasingly used to measure the content of water vapor in the atmosphere and to characterize its temporal and spatial variations. In this paper, we use observations from Global Navigation Satellite System(s) (GNSS) to e
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7ca136213334395d63757d9ec3444a3a
https://doi.org/10.1109/tgrs.2014.2382713
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2
Generating statistically robust multipath stacking maps using congruent cells
Autor: Andreas Knöpfler, Xiaoguang Luo, Michael Mayer, T. Fuhrmann
Publikováno v: GPS Solutions. 19:83-92
Multipath effects caused by reflections in the near-field and far-field of a GNSS antenna represent a major error source in static and kinematic GNSS positioning applications. Since these effects are strongly site-specific, a generally valid and prac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b637c1cb0b3a4d97c687498b5832bbe
https://doi.org/10.1007/s10291-014-0367-7
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3
Estimation of small surface displacements in the Upper Rhine Graben area from a combined analysis of PS-InSAR, levelling and GNSS data
Autor: Michael Mayer, T. Fuhrmann, M. Caro Cuenca, Bernhard Heck, Malte Westerhaus, Ramon F. Hanssen, Andreas Knöpfler, F.J. van Leijen
Publikováno v: Geophysical Journal International, 1, 203, 614-631
The intra-plate deformation of the Upper Rhine Graben (URG) located in Central Europe is investigated using geodetic measurement techniques. We present a new approach to calculate a combined velocity field from InSAR, levelling and GNSS measurements.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25d77cd6b397ed0f3952ea5a6ed396f3
http://resolver.tudelft.nl/uuid:2eb3ecdd-2a12-4265-861a-4a07f186df2a
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4
Combining InSAR, levelling and GNSS for the estimation of 3D surface displacements
Autor: T. Fuhrmann, Bernhard Heck, Malte Westerhaus, F.J. van Leijen, M. Caro Cuenca, Ramon F. Hanssen, Michael Mayer, Andreas Knöpfler
Publikováno v: Ouwehand L., Fringe 2015 Workshop, 23 March 2015 through 27 March 2015, SP-731
Scopus-Elsevier
The three geodetic techniques InSAR, levelling and GNSS are complementary w.r.t. (i) the sensitivity to horizontal and vertical displacement components, (ii) the spatial and temporal resolution of the measurements and (iii) the accuracy of the result
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0ae43e5f0b342b3419174f8f27b6569
http://resolver.tudelft.nl/uuid:a2317cee-e7a1-46b5-80e0-57b013bbaec5
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5
An Inventory of Surface Movements in the Upper Rhine Graben Area, Southwest Germany, from SAR-Interferometry, GNSS and Precise Levelling
Autor: Bernhard Heck, Thomas Fuhrmann, Andreas Knöpfler, Michael Mayer, Malte Westerhaus, Karl Zippelt, Andreas Schenk
Publikováno v: International Association of Geodesy Symposia ISBN: 9783319246031
Recent surface movements in the Upper Rhine Graben (URG) area are investigated with geodetic techniques. Line of sight (LOS) displacement rates from SAR interferometry (InSAR), horizontal and vertical rates from coordinate time series of permanent GN
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de66b76ae4f6b4aba0ff831f1dca9db6
https://doi.org/10.1007/1345_2015_116
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7
Recent surface displacements in the Upper Rhine Graben -- Preliminary results from geodetic networks
Autor: T. Fuhrmann, Michael Mayer, Karl Zippelt, Bernhard Heck, Malte Westerhaus, Andreas Knöpfler, Patrice Ulrich, Frédéric Masson
Publikováno v: Tectonophysics
Tectonophysics, Elsevier, 2013, 602, pp.300-315. ⟨10.1016/j.tecto.2012.10.012⟩
International audience; Datasets of the GNSS Upper Rhine Graben Network (GURN) and the national levelling networks in Germany, France and Switzerland are investigated with respect to current surface displacements in the Upper Rhine Graben (URG) area.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29346a81e1fd4861f6960facf54b0ddf
https://hal.archives-ouvertes.fr/hal-00853429
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8
First Results of Relative Field Calibration of a GPS Antenna at BCAL/UFPR (Baseline Calibration Station for GNSS Antennas at UFPR/Brazil)
Autor: Andreas Knöpfler, Michael Mayer, Suelen Cristina Movio Huinca, Bernhard Heck, Cláudia Pereira Krueger
Publikováno v: Geodesy for Planet Earth ISBN: 9783642203374
The precise and accurate determination as well as the usage of individual calibration values of GNSS (Global Navigation Satellite Systems) antennas are of fundamental importance for state-of-the-art GNSS positioning at millimeter accuracy level, espe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ea58bc2123c9eacc77b108f24bfbc56
https://doi.org/10.1007/978-3-642-20338-1_92
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9
GURN (GNSS Upper Rhine Graben Network): Research Goals and First Results of a Transnational Geo-scientific Network
Autor: Andreas Knöpfler, G. Ferhat, Bernhard Heck, Michael Mayer, Frédéric Masson, Patrice Ulrich
Publikováno v: Geodesy for Planet Earth ISBN: 9783642203374
The Upper Rhine Graben (URG) is a north-northeast trending rift system belonging to the European Cenozoic Rift System. Today, the southern part of the URG is seismically still active. Earthquakes of magnitude five have a recurrence time of approximat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::036a2bc0161f668c5727634a4bd74796
https://doi.org/10.1007/978-3-642-20338-1_83
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10
Establishing A Gnss Receiver Antenna Calibration Field in the Framework Of Probral
Autor: Cláudia Pereira Krueger, Bernhard Heck, J Freiberger, B Schäfer, Andreas Knöpfler, Michael Mayer
Publikováno v: International Association of Geodesy Symposia ISBN: 9783540854258
PROBRAL - Precise positioning and height determination by means of GPS: Modeling of errors and transformation into physical heights is the name of a joint venture between the Department of Geomatics (DGEOM), Federal University of Parana (UFPR), Curit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::36ecbfc6d8e74a299f584b2314e14ea2
https://doi.org/10.1007/978-3-540-85426-5_80
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