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Appleton layer
Appleton layer n (Physical Geography) the F region of the ionosphere [C20: named after Sir Edward Appleton]ThesaurusNoun | 1. | Appleton layer - the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmissionF layer, F regionionosphere - the outer region of the Earth's atmosphere; contains a high concentration of free electrons |
Appleton layer
Appleton layer[′ap·əl·tən ‚lā·ər] (geophysics) F2 layer Appleton layerThe F2 layer of the ionosphere, which is located at an approximate height of 110 to 210 miles (180–350 km). The height of this layer varies in summers and winters as well as during the day and the night. It affects daytime propagation and reflects waves from about 3 MHz to above 30 MHz.Appleton layer Related to Appleton layer: F layer, Sir Edward AppletonSynonyms for Appleton layernoun the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmissionSynonymsRelated Words |