Author: Mathis Blofeld

Dear colleagues,

as the abstract submission deadline for the coming EGU GA2020 is
approaching (Jan 15, 2020, 13:00 CET), we want to draw your
attention to the session G2.4 on ”New strategies for consistent
geodetic products and improved Earth system parameters”. The
GA will be held in Vienna, Austria on May 03-08, 2020.

Please find below the detailed session description:

The geodetic products that describe the system Earth are of high
quality, although the Global Geodetic Observing System (GGOS)
goals of 1 mm accuracy and 0.1 mm/yr stability for the terrestrial
reference frame, the Earth Orientation Parameters (EOPs) and the
static and time-variable gravity field of the Earth are not yet
fully reached. There are limiting factors that need to be
detected, analyzed, and quantified. In this context, the usage of
a sub-set of available observations only, degrading station
equipment quality, limitations in the observing concepts and
analysis and combination methods evoke the question whether and
how the derived Earth system products can be improved.

In principle, there are two ways to investigate the best methods
for improving geodetic products:

(A) New strategies of handling, analyzing and combining the
already existing space-geodetic observations need to be developed.

(B) The existing observing infrastructure should be extended by
new stations, new satellite missions, and new types of
observations or new observing concepts.

In the latter case, simulation studies are indispensable.

This session provides a platform for presentations of new
strategies, new analysis methods and simulation studies seeking to
improve the determination of Earth system parameters and geodetic
products such as the Terrestrial and Celestial Reference Frame
(TRF, CRF), EOPs, Earths gravity field, satellite orbits, as well
as atmospheric key parameters. Presentations investigating
approaches for reaching a better consistency between the
individual parameters are highly welcomed, e.g., studies towards
consistent estimation of the TRF, CRF and EOPs. Concerning
consistency, novel approaches to achieve a consistent estimation
of the three pillars of geodesy, i.e., geometry, orientation and
gravity, are also welcomed. In addition we are seeking
contributions focusing on alternative analysis concepts such as
employing co-locations in space, clock ties, or atmospheric ties.
Simulation studies investigating dedicated co-location satellites
or novel observation methods (e.g. inter-satellite links or VLBI
tracking of GNSS satellites) and their potential for improving the
geodetic parameters are also invited. Many of the aspects
mentioned above are brought together within the GGOS Standing
Committee PLATO (Performance Simulations and Architectural
Trade-Offs). Therefore, contributions related to the activities
carried out within this group are also appreciated.

Please consider submitting an abstract to this session on
consistent geodetic products. We are looking forward to your
contribution.




On behalf of the convenors of session G2.4,


Mathis Blofeld



Co-conveners: Benjamin Mnnel, Benedikt Soja, Daniela Thaller

-- 
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