****************************************************************************** dorismail 26-Nov-2018 22:25:44 Message No 1148 ****************************************************************************** Author: =?UTF-8?Q?Blo=c3=9ffeld=2c_Mathis?= Subject: Call for abstracts for EGU 2019 session G2.5: Combination strategies Dear colleagues, we, that are Mathis, Sara, Alexandre and Benedikt, want to invite you to submit an abstract to our new session on "*Combination strategies for consistent geodetic products*" (G2.5) at the EGU General Assembly 2019 in Vienna, Austria (7.-12. April 2019). The deadline for the abstract submission is *10. January 2019*!! Link to EGU 2019 website: https://www.egu2019.eu/ Link to the abstract submission: https://egu2019.eu/abstracts_and_programme/how_to_submit_an_abstract.html This session will be a totally new session covering all topics around the combination of geodetic techniques and parameters. Geodetic parameters, as we all know, are integral quantities of a complex and continuously changing planet Earth and therefore, we have to study and understand their interactions and resulting potential tradeoffs in their common adjustment. Please find below the detailed session description: The combination of space and terrestrial geodetic techniques is a prerequisite for the integrated estimation of a multitude of geodetic parameters such as quasar and station positions (and the respective motions), satellite orbits, Earth's gravity field coefficients, Earth orientation parameters (EOP), Earth's thermospheric parameters and atmospheric conditions. These parameters depend strongly on combination strategies or adjustment theories like the least-squares and Kalman filter estimation at different levels and the co-location on ground and in space. The estimated parameters are affected by real geophysical signals and artifacts in geodetic observations at the same time. Their separation still yields a very challenging objective. Moreover, the consideration and interpretation of inter-technique and inter-parameter correlations and dependencies may enhance our knowledge on systematic effects, improve the consistency between different observational techniques, and may help to mitigate artifacts in geodetic time series. In addition to the prior mentioned aspects, also the time transfer between observing systems and integrative technologies at fundamental stations help revealing inter-technique biases. All these estimation and combination strategies provide invaluable tools to identify and to potentially resolve technique-specific or inter-technique biases. This session provides a forum to discuss combination strategies, future integrative technologies, parameter correlations, and inter-technique biases w.r.t. their impact on geodetic parameters. We especially encourage contributions that focus on the combined adjustment of parameters to improve their consistency and contributions that address innovative combination strategies. This session is organized and chaired by*E**arly Career Scientists*! Our session also participates in *peer-reviewed proceedings* available for the first time at the coming EGU 2019. If you submit an abstract to our session, you will have the opportunity to publish your research in an *open-access EGU journal*. We apologize if you get this email multiple times via different mailing lists! If you have any further questions please contact any of us directly;-) See you in Vienna, Mathis Bloßfeld (mathis.blossfeld@tum.de) Sara Bruni (sara.bruni4@unibo.it) Alexandre Belli (alexandrejeanvincent.belli@nasa.gov) Benedikt Soja (Benedikt.S.Soja@jpl.nasa.gov) -- Dr.-Ing. Mathis Blossfeld Deutsches Geodaetisches Forschungsinstitut der Technischen Universitaet Muenchen (DGFI-TUM) phone: +49 89 23031 1119 fax: +49 89 23031 1240 email: mathis.blossfeld@tum.de mail: Arcisstrasse 21, 80333 Muenchen, Germany web: www.dgfi.tum.de