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Stratospheric‐Ionospheric Interaction During the Movement of a Planetary Wave in January 1967
Author(s) -
Williams Ben H.,
Olsen Robert O.,
Kays Marvin D.
Publication year - 1972
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs007i001p00193
Subject(s) - stratosphere , atmospheric sciences , ionosphere , middle latitudes , zonal and meridional , daytime , altitude (triangle) , thermosphere , latitude , mesosphere , environmental science , geology , geophysics , geodesy , geometry , mathematics
Examination of meteorological synoptic analyses in the stratosphere and lower mesosphere and ƒ min values observed over North America reveals a significant correlation between the passage of a deep planetary wave and increased electron densities in the lower ionosphere. As evidence of this correlation, a series of synoptic analyses concentrated in the upper stratosphere, along with longitudinal cross section of zonal winds and temperatures, and profiles of ƒ min are illustrated. Correlation coefficients were calculated between mean daytime values of ƒ min and the zonal, meridional, and vertical components of the wind at 40 and 50 km. These calculations show, in general, that the correlation increases with altitude, decreases with an increase in latitude, and that the zonal wind in midlatitudes exhibits the highest correlation. Correlation coefficients between ƒ min and planetary magnetic indices, solar sunspot number, and solar flux would point to exclusion of extraterrestrial parameters as a source of the observed electron increase.