Statements (49)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Atmospheric layer
|
| gptkbp:affects |
solar radiation
shortwave radio communication satellite signals |
| gptkbp:cause |
gptkb:auroras
|
| gptkbp:contains |
ionized particles
free electrons positive ions negative ions |
| gptkbp:density |
very low
|
| gptkbp:discoveredBy |
gptkb:Oliver_Heaviside
|
| gptkbp:discoveredIn |
early 20th century
|
| gptkbp:enables |
radio wave propagation
|
| gptkbp:extendsTo |
about 1,000 km above Earth's surface
about 48 km above Earth's surface |
| gptkbp:heldBy |
dynamic
crucial for navigation systems electrically conductive not uniform subject to atmospheric tides subject to geomagnetic variation subject to gravity waves subject to human activity (e.g., HAARP) subject to ionospheric storms subject to latitude variation subject to meteor showers subject to seasonal variation subject to solar cycle variation subject to space weather |
| https://www.w3.org/2000/01/rdf-schema#label |
Ionosphere
|
| gptkbp:importantFor |
satellite communication
GPS accuracy |
| gptkbp:influencedBy |
cosmic rays
solar flares geomagnetic storms |
| gptkbp:lowerAward |
gptkb:Exosphere
|
| gptkbp:partOf |
gptkb:Earth's_atmosphere
|
| gptkbp:rank |
gptkb:Mesosphere
|
| gptkbp:region |
gptkb:D_region
E region F region |
| gptkbp:studiedBy |
gptkb:radar
gptkb:ionosondes satellites |
| gptkbp:temperature |
200 K to 2,000 K
|
| gptkbp:variant |
solar activity
time of day |
| gptkbp:bfsParent |
gptkb:radar
|
| gptkbp:bfsLayer |
4
|