Astronomy
Relativity Theories
Ionosphere and Magnetosphere
Geodesy
Navigation
Volcanology
Troposphere
Geomagnetism
Positioning and Navigation
Orbitography
ESA Data Ontology
Heliophysics
Plate Tectonic Earthquakes and Volcanology
Positioning
Cosmology
Micro-Thesaurus
Space Weather
Earth Gravitational Field
Animal Tracking
Time and Frequency
Navigation thematic area
Changed name from keywords to theme so to explicitly define this as related with a controlled vocabulary.
2022-09-19 [aperei01] Changed definition to reflect new thesaurus for Navigation.