A comparison of EISCAT and Dynasonde measurements of the auroral ionosphere

Incoherent-scatter radar and ionospheric sounding are powerful and complementary techniques in the study of the Earth's ionosphere. The work presented here involves the use of the Tromsø Dynasonde as a correlative diagnostic with the EISCAT incoherent-scatter radar. A comparison of electron-den...

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Bibliographic Details
Published in:Annales Geophysicae
Main Authors: K. J. F. Sedgemore, P. J. S. Williams, G. O. L. Jones, J. W. Wright
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 1996
Subjects:
Science
Q
Physics
QC1-999
Geophysics. Cosmic physics
QC801-809
Tromsø
EISCAT
Online Access:https://doi.org/10.1007/s00585-996-1403-x
https://doaj.org/article/36ac16c7998d44cbb49da4ba8439a1b8
Description
Summary:Incoherent-scatter radar and ionospheric sounding are powerful and complementary techniques in the study of the Earth's ionosphere. The work presented here involves the use of the Tromsø Dynasonde as a correlative diagnostic with the EISCAT incoherent-scatter radar. A comparison of electron-density profiles shows how a Dynasonde can be used to calibrate an incoherent-scatter radar and to monitor changes in the system. Skymaps of the direction of Dynasonde echoes are compared with EISCAT-derived density profiles to illustrate how a Dynasonde can be used to measure the drift velocity of auroral features. Vector velocities fitted to Dynasonde echoes are compared with EISCAT-derived plasma velocities. The results show good agreement when the data are taken during quiet to moderately active conditions and averaged over time scales of 30 min or more.

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