| Vocabulary Broker - Proof of Concept

E-layer critical frequency

prefLabel	E-layer Critical Frequency
definition	The ordinary wave critical frequency of the lowest think layer stratification in the E region of ionosphere that causes a discontinuity in the height of E trace
altLabel	foE
inScheme	ESPAS Observed Property
broader	O-Mode Critical Frequency
measurand	Critical Frequency
phenomenon	Electromagnetic Wave
propagationMode	Ordinary Wave
featureOfInterest	E-Region of Ionosphere
interaction	Reflection