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Simulation of the Global Geodetic Observing System

Lupe

Project team

  • Leaders: Harald Schuh (TUB, GFZ), Rolf König (GFZ)
  • Main scientists: Nijat Mammadaliyev (TUB), Patrick Alexander Schreiner (GFZ)
  • Further: Susanne Glaser (GFZ), Karl Hans Neumayer (GFZ), Robert Heinkelmann (GFZ), Frank Flechtner (TUB, GFZ)

Abstract

The overall objective of GGOS-SIM-2 is to assess the potential of co-location in space of the four main space geodetic techniques (Doppler Orbitography and Radiopositioning Integrated by Satellite, Global Navigation Satellite Systems, Satellite Laser Ranging, Very Long Baseline Interferometry), i.e. on board of one or more satellites, to realize a global terrestrial reference system (TRS) with an accuracy and stability meeting the science-driven requirements specified by the Global Geodetic Observing System (GGOS) of the IAG (International Association of Geodesy). Currently, these quality requirements are not achieved but are strongly required to reliably interpret global processes, such as the global sea level rise.

Within the first phase of project GGOS-SIM, the achieved results have demonstrated the suitability of simulations of the four main space geodetic techniques for investigating the accuracy and stability of global terrestrial reference frames (TRF).

In the second phase (GGOS-SIM-2) we plan extending these simulations by considering co-locations of the four techniques in space and quantifying the effects on the TRF determination. Using space ties instead of or additionally to ground local ties that are customarily interconnecting the individual techniques will allow validating these local ties, which are currently applied without any external control in the TRS realization approaches.

Within GGOS-SIM-2 the following questions will be addressed:

  • Which level of accuracy of the TRF and the related products like Earth orientation parameters can be obtained, applying co-location in space through a GRASP-like satellite?
  • What is the added value for TRS realization of a space tie on one (or more) satellite(s) complementing the local ties on ground?
  • Which criteria have to be fulfilled in order to get a TRF meeting the GGOS requirements depending on optimal orbit selection, number of ground stations, observation time, and number of satellites?
  • What is the impact of technique-specific systematics within the common POD on the TRF?
  • What can be concluded for the local ties at the ground?
  • What are the prospects for the static and time-variable gravity field?

Publications

  • Schuh H, König R, Ampatzidis D, Flechtner F,  Glaser S, Heinkelmann R, Nilsson T (2014), GGOS-SIM: Simulation of the Global Geodetic Observing System,
    IAG Commission 1 Symposium 2014: Reference Frames for Applications in Geosciences (REFAG2014), Poster
  • Ampatzidis D, König R, Zhu S (2015), On the Assessment of Global Terrestrial Reference Frame Temporal Variations, EGU2015, Poster
  • Schuh H, König R, Ampatzidis D, Glaser S, Flechtner F, Heinkelmann R, Nilsson T (2015), On the Strategy of Simulating a GGOS Network, EGU2015, Poster
  • Ampatzidis D, König R (2015), The Assessment of the Temporal Evolution of Space Geodetic Terrestrial Reference Frames, IUGG2015, Poster
  • Glaser S, Ampatzidis D, Schuh H, König R, Nilsson T, Heinkelmann R, Flechner F (2015), Simulating Very Long Baseline Interferometry observations to determine a global terrestrial reference frame for the Global Geodetic Observing System, IUGG2015, Poster
  • Glaser S, Ampatzidis D, Schuh H, König R, Nilsson T, Heinkelmann R, Flechner F (2015), Determination of a TRF from simulated VLBI and SLR data in the frame of GGOS, AOGS2015, Presentation
  • Schuh H, König R, Ampatzidis D, Glaser S, Flechner F, Heinkelmann R, NilssonT (2015), GGOS-SIM: Simulation of the Reference Frame for the Global Geodetic Observing System. In: van Dam T. (eds) REFAG 2014. International Association of Geodesy Symposia, vol 146., pp 95-100, DOI:10.1007/1345_2015_217 SpringerLink
  • Ampatzidis D, König R, Glaser S, Heinkelmann R, Schuh H, Flechtner F, Nilsson T (2016), The assessment of the transformation of global tectonic plate models and the global terrestrial reference frames using the Velocity Decomposition Analysis, (Poster), EGU General Assembly, 17-22 April 2016, Vienna/Austria Abstract
  • Glaser S, Ampatzidis D, Schuh H, König R, Nilsson T, Heinkelmann R, Flechner F (2016), Combination of simulated VLBI and SLR observations to determine a global TRF, (Poster), EGU General Assembly,  Vienna, Austria, 17-22 April 2016, Abstract
  • Ampatzidis D, König R, Glaser S, Schuh H, Nilsson T, Heinkelmann R, Flechtner F (2016), The biased inner constraints: Theoretical aspects, formulas and application to a global simulated VLBI network, Geodetic Week, Session: Geodetic reference systems, Hamburg, Germany, October 11-13, 2016 Abstract
  • Ampatzidis D, König R, Glaser S, Schuh H (2016), The Assessment of the Temporal Evolution of Space Geodetic Terrestrial Reference Frames, IAG Symposia Series, Springer Berlin Heidelberg, DOI 10.1007/1345_2016_251 SpringerLink
  • Glaser S, König R, Ampatzidis D, Schuh H, Nilsson T, Heinkelmann R, Flechtner F (2016), Simulations for global terrestrial reference frames from SLR and VLBI data, Geodetic Week, Session: Geodetic reference systems, Hamburg, Germany, October 11-13, 2016 Abstract
  • Glaser S, Ampatzidis D, König R, Nilsson T, Heinkelmann R, Flechner F, Schuh H (2016), Simulation of VLBI Observations to Determine a Global TRF for GGOS, IAG Symposia Series, Springer Berlin Heidelberg, DOI 10.1007/1345_2016_256 SpringerLink
  • Glaser S, Ampatzidis D, König R, Schuh H, Nilsson T, Heinkelmann R, Flechtner F (2016), Simulation of DORIS, GNSS, SLR, and VLBI Observations for GGOS, (Poster), AGU Fall Meeting, San Francisco, USA, December 12-16, 2016 Abstract
  • Glaser S, König R, Ampatzidis D, Nilsson T, Heinkelmann R, Flechner F, Schuh H (2017), A Global Terrestrial Reference Frame from simulated VLBI and SLR data in view of GGOS, Journal of Geodesy, DOI 10.1007/s00190-017-1021-2 SpringerLink
  • König R, Glaser S, Schuh H, Nilsson T, Heinkelmann R, Flechtner, F (2017), DORIS Simulations within Project GGOS-SIM, DORIS Analysis Working Group Meeting, London, United Kingdom, 22-24 May 2017, Link
  • Glaser S, König R, Bauer S, Neumayer K-H, Schuh H, Nilsson T, Heinkelmann R, Flechtner F (2017), Simulation of global terrestrial reference frames for GGOS, IGOS Workshop Wettzell, 21 June 2017
  • Glaser S, König R, Neumayer K-H, Nilsson T, Heinkelmann R, Schuh H, Flechtner F (2017), Simulated multi-technique TRFs for GGOS with focus on enhanced SLR and VLBI ground network architecture, IAG-IASPEI 2017, Kobe, Japan, 30 July - 04 August 2017, Abstract
  • Männel B, Thaller D, Rothacher M, Boehm J, Mueller J, Blossfeld M, Kehm A, Glaser S (2017), Recent Activities of the GGOS Standing Committee on Performance Simulations and Architectural Trade-Offs (PLATO), IAG-IASPEI 2017, Kobe, Japan, 30 July - 04 August 2017, Abstract
  • Männel B, Thaller D, Rothacher M, Böhm J, Müller J, Glaser S, Dach R, Biancale R, Bloßfeld M, Kehm A, Herrera Pinzon I, Hofmann F, Andritsch F, Coulot D, Pollet A (2018) Recent Activities of the GGOS Standing Committee on Performance Simulations and Architectural Trade-Offs (PLATO), IAG Symposia Series IAG-IASPEI2017, DOI: 10.1007/1345_2018_30, Abstract
  • Glaser S, Koenig R, Neumayer K-H, Balidakis K, Schuh H (2018) SLR station network improvements in the framework of simulated multi-technique reference frames (Geophysical Research Abstracts, 20, EGU2018-4265, 2018), General Assembly European Geosciences Union (Vienna 2018), Abstract
  • Glaser S, König R, Neumayer K H, Nilsson T, Heinkelmann R, Flechtner F, Schuh H (2019) On the impact of local ties on the datum realization of global terrestrial reference frames, Journal of Geodesy 93:655, DOI: 10.1007/s00190-018-1189-0, SpringerLink
  • Glaser S, König R, Neumayer K H, Balidakis K, Schuh H (2019) Future SLR station networks in the framework of simulated multi-technique terrestrial reference frames, Journal of Geodesy, DOI: 10.1007/s00190-019-01256-8, SpringerLink
  • Schreiner P A, Mammadaliyev N, Glaser S, Koenig R, Neumayer K H, Schuh H (2019) On the effects of single-satellite space ties on the Terrestrial Reference Frame, Geophysical Research Abstracts, Vol. 21, EGU2019-17802, EGU General Assembly 2019, Vienna April 07-12, 2019, Abstract
  • Thaller D, Männel B, Glaser S, Rothacher M, Pinzon I H, Blossfeld M, Kehm A, Andritsch F, Dach R, Böhm J, Pavlis E, Pollet A (2019), The GGOS Standing Committee on Performance Simulations and Architectural Trade-Offs (PLATO), IUGG19-4371, 27th IUGG General Assembly, Montréal, Canada, July 08-18, 2019,  Abstract
  • Koenig R, Glaser S, Ciufolini I, Paolozzi A, (2019) Impacts of the LARES and LARES-2 satellite missions on the terrestrial reference frame, IAG Symposia Series, Hotine-Marussi-Symposium, DOI: 10.1007/1345_2019_84, SpringerLink
  • Schreiner P, König R, Neumayer K H, Mammadaliyev N, Glaser S, Schuh H, (2019) Zu den Auswirkungen von Einzelsatelliten space ties auf den Terrestrischen Referenzrahmen, Frontiers of geodetic science, INTERGEO, Stuttgart, Germany, September 17-19, 2019, Abstract
  • Thaller D, Männel B, Glaser S, Kehm A, Bloßfeld M (2019), Recent activities of the GGOS Standing Committee on Performance Simulations and Architectural Trade-Offs (PLATO),Workshop on the Implementation of the Global Geodetic Reference Frame (GGRF) in Latin America, Buenos Aires, Argentina, September 16-20, 2019
  • Mammadaliyev N, Schreiner P A, Glaser S, Balidakis K, Neumayer K H, Anderson J, Heinkelmann R, Koenig R, Schuh H (2019) On a possible contribution of VLBI to geocenter realiszation via satellites assessed by simulation study, Journees 2019, Paris, France, October 7-9, 2019, Abstract

Links

  • More information about the International Association of Geodesy - Global Geodetic Observing System, IAG GGOS
  • Planned contribution to the GGOS Working Group on Performance Simulations and Architectural Trade‐Offs, WG PLATO
  • Project description of GGOS-SIM at the German Project Information System (GEPRIS) of the German Research Foundation, DFG GEPRIS GGOS-SIM

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