ESA Data Ontology
type: ConceptScheme
type: Ontology

Active Remote Sensing
type: Concept

Acoustic Sounders
type: Concept

Radio Sounders
type: Concept

Radar Sounders
type: Concept

Profilers/Sounders
type: Concept
in scheme: ESA Data Ontology

Lidar/Laser Sounders
type: Concept

Profilers/Sounders
type: Concept