Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
ionospheric layer
|
| gptkbp:affects |
shortwave radio propagation
|
| gptkbp:alsoKnownAs |
gptkb:F2_layer
|
| gptkbp:contains |
high concentration of free electrons
|
| gptkbp:discoveredBy |
gptkb:Edward_Victor_Appleton
|
| gptkbp:electronDensity |
varies with solar activity
|
| gptkbp:elevation |
250 km to 400 km
|
| gptkbp:form |
during daytime
|
| gptkbp:formedBy |
solar ultraviolet radiation
|
| https://www.w3.org/2000/01/rdf-schema#label |
Appleton layer
|
| gptkbp:importantFor |
long-distance radio communication
|
| gptkbp:locatedIn |
gptkb:ionosphere
|
| gptkbp:lowerAward |
exosphere
|
| gptkbp:maximumElectronDensity |
occurs at noon
|
| gptkbp:namedAfter |
gptkb:Edward_Victor_Appleton
|
| gptkbp:partOf |
gptkb:F_region_of_ionosphere
|
| gptkbp:persists |
at night
|
| gptkbp:rank |
gptkb:E_layer
|
| gptkbp:studiedIn |
atmospheric physics
|
| gptkbp:bfsParent |
gptkb:Sir_Edward_Appleton
gptkb:F_layer |
| gptkbp:bfsLayer |
5
|