Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:atmospheric_phenomenon
|
| gptkbp:affects |
radio wave propagation
|
| gptkbp:alsoKnownAs |
Es layer
|
| gptkbp:can_disrupt |
radio communications
|
| gptkbp:can_reflect |
VHF radio signals
|
| gptkbp:cause |
metallic ions
|
| gptkbp:composedOf |
thin, dense patches of ionization
|
| gptkbp:discoveredBy |
1930s
|
| gptkbp:duration |
minutes to hours
|
| gptkbp:foundIn |
gptkb:Earth's_ionosphere
|
| gptkbp:more_frequent_at |
mid-latitudes
|
| gptkbp:more_frequent_in |
summer
|
| gptkbp:observedBy |
gptkb:ionosondes
|
| gptkbp:occurs_at_altitude |
90-130 km
|
| gptkbp:studiedBy |
atmospheric science
|
| gptkbp:bfsParent |
gptkb:Sporadic_E_propagation
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
sporadic E layer
|