Abstracts of original papers are solicited for inclusion in the colloquium programme.
The following list of topics can be used as a guideline (please use the code relating to the topic of your paper when submitting your abstract):

Earth Sciences
E01		Geodesy and Geodynamics
E02		Geodynamics
E03		Global Tectonics
E04		Reference Frames
E05		Ionosphere and Space Weather
E06		Troposphere
E07		Atmospheric tomography
E08		Earthquakes
E09		Gravity field
E10		Remote sensing of Earth / Ocean
E11		GNSS reflectometry
Physics
P01		Space-Time symmetries
P02		Fundamental constants
P03		Relativistic reference frames
P04		Equivalence Principle
P05		General Relativity
P06		Astrometry, VLBI, Pulsar Timing
P07		Atomic physics for clocks
P08		Astronomy and GNSS
P09		Quantum non-locality and decoherence
Metrology
M01		Atomic Clocks (Optical and Maser)
M02		Galileo timing system
M03		Time scales and offsets
M04		Inter-satellite links
M05		Precise Orbit determination
M06		Signal propagation aspects