ionospheric absorption

См. также в других словарях:

• Ionospheric absorption — (or ISAB) is the scientific name for absorption occurring as a result of the interaction between various types of electromagnetic waves and the free electrons in the ionosphere, which can interfere with radio transmissions.DescriptionIonosphere… …   Wikipedia

• Ionospheric reflection — Ionospheric reflection: Of electromagnetic waves propagating in the ionosphere, a redirection, i.e., bending by a complex process involving reflection and refraction of the waves back toward the Earth. Note: The amount of bending depends on the… …   Wikipedia

• Polar Cap Absorption — Beziehung von Ionosphäre und Erdatmosphäre Elektronendichte und Ionenzusammensetzung in den oberen Ionosphärenschichten …   Deutsch Wikipedia

• Sudden Ionospheric Disturbance — A sudden ionospheric disturbance (SID) is an abnormally high ionization/plasma density in the D region of the ionosphere caused by a solar flare. The SID results in a sudden increase in radio wave absorption that is most severe in the upper… …   Wikipedia

• Ionosphere — The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner …   Wikipedia

• List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… …   Wikipedia

• Riometer — A riometer ( r elative i onospheric o pacity meter) is an instrument used to quantify the amount of ionospheric absorption in the atmosphere. [ cite book | first=R.D | last=Hunsucker |coauthors= J.K Hargreaves| year=2003 | title=The High Latitude …   Wikipedia

• Aurora (astronomy) — Aurora Borealis redirects here. For other uses, see Aurora Borealis (disambiguation). Aurora Australis redirects here. For the ship, see Aurora Australis (icebreaker). For the book, see Aurora Australis (book). Northern lights redirects here. For …   Wikipedia

• Radio horizon — In telecommunication, radio horizon is the locus of points at which direct rays from an antenna are tangential to the surface of the Earth. If the Earth were a perfect sphere and there were no atmospheric anomalies, the radio horizon would be a… …   Wikipedia

• Ionosphäre — Beziehung von Ionosphäre und Erdatmosphäre …   Deutsch Wikipedia

• Ionosonde — Beziehung von Ionosphäre und Erdatmosphäre Elektronendichte und Ionenzusammensetzung in den oberen Ionosphärenschichten …   Deutsch Wikipedia