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Talk by Dr.-Ing. Susanne Glaser: "Combination of space geodetic techniques to determine global terrestrial reference frames"

  Scientific Talks

Date: Monday, 20th of May 2019; 10:00 a.m.

Venue: Potsdam, Telegrafenberg, building A45 (AWI), room 11.101

Host:Prof. Dr. Dr. h.c. Harald Schuh, Head of Section 1.1 "Space Geodetic Techniques" and Director of Dept. 1 “Geodesy” at Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences

Speaker:Dr.-Ing. Susanne Glaser, Scientist at Section 1.1 "Space Geodetic Techniques", Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences

All people interested are very welcome!

Abstract

The optimal combination of the different space geodetic techniques, and accounting for the individual strengths and weaknesses thereof, allows the determination of global terrestrial reference frames (TRFs) with the highest accuracy, stability and consistency. Global TRFs are the indispensable basis upon which Earth system modeling takes place since they provide the absolute reference for the relative space geodetic measurements. To reliably monitor and predict phenomena pertinent to climate change such as the global sea level rise, TRFs need to be accurate to 1 mm and long-term stable to 1 mm/decade. However, state-of-the-art TRFs cannot fulfill these requirements by almost one order of magnitude, thus failing to realize the goals of the Global Geodetic Observing System. This presentation will cover recent combination studies of the different space geodetic techniques, including extensive simulations to improve current and future TRFs.

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