Daytime valley in the F1-region observed by incoherent scatter

dc.contributor.author	Taieb, C.
dc.contributor.author	Scialom, G.
dc.contributor.author	Kockarts, G.
dc.date	1975
dc.date.accessioned	2017-08-31T12:18:32Z
dc.date.available	2017-08-31T12:18:32Z
dc.identifier.uri	https://orfeo.belnet.be/handle/internal/6069
dc.description	Incoherent scatter data obtained at Saint-Santin have been analyzed between 1969 and 1972 in the height interval 120-200 km. The summer daytime electron density profiles show a maximum around 150 km followed by a minimum around 165 km, when the solar activity is low. The seasonal and solar cycle variations of this phenomena are discussed. When the day-time valley exists, the maximum density is ca. 20-30 per cent greater than the minimum value. The phenomenon cannot be fully explained on the basis of photochemical equilibrium. A wind-shear mechanism could play an important role.
dc.language	eng
dc.title	Daytime valley in the F1-region observed by incoherent scatter
dc.type	Article
dc.subject.frascati	Physical sciences
dc.audience	Scientific
dc.source.title	Planetary and Space Science
dc.source.volume	23
dc.source.issue	3
dc.source.page	523-531
Orfeo.peerreviewed	Yes
dc.identifier.doi	10.1016/0032-0633(75)90122-1
dc.identifier.scopus	2-s2.0-49549140186