Kennelly–Heaviside layer theory
E63328
Kennelly–Heaviside layer theory is an early 20th-century scientific model proposing the existence of a conductive layer in the upper atmosphere that reflects radio waves, helping to explain long-distance radio communication.
Aliases (3)
- Heaviside layer ×1
- Heaviside–Kennelly layer ×1
- Kennelly–Heaviside layer ×1
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
atmospheric physics model
→
radio propagation theory → scientific theory → |
| addresses |
problem of radio signals traveling beyond line-of-sight
→
|
| application |
planning of early transcontinental radio links
→
understanding day–night variation in radio reception → |
| assumes |
presence of ionized gases at high altitude
→
radio waves can be reflected or refracted by ionized layers → |
| category |
history of atmospheric science
→
history of radio → |
| concerns |
electromagnetic wave propagation in the atmosphere
→
frequency-dependent behavior of radio waves → |
| describes |
existence of a conductive layer in the upper atmosphere
→
reflection of radio waves by the upper atmosphere → |
| explains |
long-distance radio communication beyond the horizon
→
skywave radio propagation → |
| field |
ionospheric physics
→
radio physics → telecommunications → |
| historicalContext |
developed soon after the advent of wireless radio
→
|
| influenced |
design of long-range radio communication systems
→
development of wireless telegraphy → |
| namedAfter |
Arthur Edwin Kennelly
→
Oliver Heaviside → |
| precedes |
modern ionospheric theory
→
|
| predicts |
radio waves can return to Earth after reaching upper atmosphere
→
|
| proposedBy |
Arthur Edwin Kennelly
→
Oliver Heaviside → |
| relatedConcept |
D layer of the ionosphere
→
E layer of the ionosphere → F layer of the ionosphere → groundwave → skywave → |
| relatesTo |
Heaviside layer
→
ionosphere → medium-wave radio propagation → shortwave radio propagation → |
| status |
superseded in detail by modern ionospheric models but historically important
→
|
| timePeriod |
early 20th century
→
|
Referenced by (4)
| Subject (surface form when different) | Predicate |
|---|---|
|
Arthur E. Kennelly
("Kennelly–Heaviside layer")
→
Arthur E. Kennelly ("Heaviside–Kennelly layer") → |
knownFor |
|
Arthur E. Kennelly
→
|
notableWork |
|
Kennelly–Heaviside layer theory
("Heaviside layer")
→
|
relatesTo |