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Model representation of the ambient electron density distribution in the middle atmosphereWhile the Langmuir probe controlled by rocket propagation experiments by the University of Illinois at midlatitude revealed the existence of a permanent D region turning point (DTP), similar measurements over the Thumba equatorial station did not clearly bring out the above daytime feature. Moreover, the calibration constant (ratio of electron density to the current drawn by the Langmuir probe) increased with height (in the 70 to 100 km region) in the case of the midlatitude observations whereas the recent measurements over Thumba showed a decrease up to about 90 km followed by an increase above 90 km. Secondly, there is the problem of reconciling the station oriented observations from the COSPAR family with the ground based radio propagation measurements from the URSI family. Thirdly, new information on Winter in Northern Europe (WINE) and in USSR is available by asking for its incorporation into any global model such as the IRI. The results of investigation of the above aspects are presented.
Document ID
19890020513
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ramanamurty, Y. V. (National Physical Lab. New Delhi, India)
Date Acquired
September 6, 2013
Publication Date
April 1, 1989
Publication Information
Publication: International Council of Scientific Unions, Middle Atmosphere Program. Handbook for MAP, volume 27
Subject Category
Geophysics
Accession Number
89N29884
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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