initial phase of geomagnetic storm

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• Geomagnetic storm — This article is about disturbances within Earth s magnetosphere. For other uses of magnetic storm , see Magnetic storm (disambiguation). Solar particles interact with Earth s magnetosphere. A geomagnetic storm is a temporary disturbance of the… …   Wikipedia

• geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …   Universalium

• magnetic storm — a temporary disturbance of the earth s magnetic field, induced by radiation and streams of charged particles from the sun. Also called geomagnetic storm. [1855 60] * * * ▪ atmospheric science       disturbance of the Earth s upper atmosphere… …   Universalium

• 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

• space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… …   Universalium

• Coronal mass ejection — A coronal mass ejection in time lapse imagery obtained with the LASCO instrument. The Sun (center) is obscured by the coronagraph s mask. (September 30 – October 1, 2001) A coronal mass ejection (CME) is a massive burst of solar wind, other light …   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

• Transformer — This article is about the electrical device. For the toy line franchise, see Transformers. For other uses, see Transformer (disambiguation). Pole mounted distribution transformer with center tapped secondary winding. This type of transformer is… …   Wikipedia

• Hydro-Québec — Type Government owned corporation Industry Electric Utilities Founded …   Wikipedia

• Cluster (spacecraft) — Cluster Operator European Space Agency in international collaboration with NASA Major contractors Dornier GmbH (now part of EADS) Mission type Orbiter Satellite of Earth …   Wikipedia

• Feng shui — Chinese pic=Fengshui Compass.jpg picsize=250px picc Luopan Compass t= s= kanji= hiragana=ふうすい revhep=fūsui kunrei=hûsui p=fēngshuǐ hanja= hangul= rr=pungsu mr=p ungsu vie=Phong thủy tgl=pungsoy tha=ฮวงจุ้ย ( Huang Jui ) j= fung1 seoi2… …   Wikipedia