Validate positioning
Check GNSS observations, processing choices, coordinate quality and operational performance.
GNSS processing & QC →
Independent specialist geodetic consultancy & training
Trusted geodetic decisions, from coordinates to sea level.
Geodion helps organisations obtain reliable coordinates, defensible datum transformations, trusted height solutions and quality-controlled GNSS, altimetry and sea-level results.
Support ranges from focused technical advice and independent review to data processing, method development, reporting and professional training.
Independent adviceTraceable methodsPractical delivery
How Geodion helps
Clear answers to the geodetic questions behind your project
Specialist support ranging from focused technical advice to processing, validation, reporting and training.
Connect reference systems
Transform coordinates and align local, national and global datums with documented assumptions.
Frames, datums & transformations →Establish reliable heights
Assess geoid models, vertical datums and the relationship between ellipsoidal and physical heights.
Geoid & height systems →Interpret ocean and coastal measurements
Use altimetry, tide gauges, tidal analysis and marine observations within a coherent geodetic framework.
Altimetry, tides & marine geodesy →Selected applications
Technical depth applied to real measurement problems
A concise selection of areas where Geodion’s research and industry experience can support project decisions.
Coastal sea level and vertical referencing
Connecting GNSS, levelling, tide gauges and altimetry within a traceable height framework.
Satellite altimetry and offshore context
Data interpretation, calibration and validation for coastal and open-ocean applications.
Gravity fields, geoids and height systems
Geopotential models, geoid computation and the physical foundations of reliable heights.
Professional training
Build practical geodetic capability within your team
Bespoke online or on-site training in GNSS, datums, geoid models, height systems, satellite altimetry, surveying and sea-level applications.
- Short technical sessions
- Half-day and full-day workshops
- Project-based mentoring
- Courses using client workflows and data
About Geodion
Specialist experience without the overhead of a large consultancy
Geodion is led by Dr Nadim Dayoub, whose background spans physical geodesy, GNSS, offshore surveying, satellite altimetry, national reference systems, scientific software and professional training.
Clients receive direct access to specialist judgement, clear communication and support proportionate to the technical problem.
Read about experience and technical contributions →Start with the technical question