Please use this identifier to cite or link to this item:
Title: The influence of magnetospheric substorms on SuperDARN radar backscatter
Authors: Wild, J. A.
Grocott, Adrian
First Published: 25-Apr-2008
Publisher: American Geophysical Union (AGU)
Citation: Journal of Geophysical Research, 2008, 113, A04308.
Abstract: The SuperDARN ionospheric radar network is a leading tool for investigating the near-Earth space environment. However, reductions in ionospheric backscatter have been reported during magnetospheric substorms. We have therefore investigated the impact of substorms upon SuperDARN backscatter during 3005 substorms and find that the global level of scatter maximizes just prior to substorm onset. In the nightside ionosphere, backscatter poleward of ∼70° magnetic latitude is reduced, with radar echoes shifting to lower latitudes. An examination into the frequency-dependence of nightside backscatter evolution during substorms reveals that although most backscatter data is based upon operations in the 08–14 MHz range, higher operating frequencies may offer improved performance in the period just prior to and immediately following expansion phase onset. We suggest that the SuperDARN array of high-frequency coherent-scatter radars, and in particular those radars with the ability to simultaneously operate at dual frequencies, will play a key role in future space- and ground-based studies of substorms.
DOI Link: 10.1029/2007JA012910
ISSN: 0148-0227
Type: Article
Rights: This paper was published as Journal of Geophysical Research, 2008, 113, A04308. Copyright 2008 American Geophysical Union. It is also available from Doi: 10.1029/2007JA012910
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

Files in This Item:
File Description SizeFormat 
Influence of magnetospheric substorms on SuperDARN ,,,.pdf679.35 kBAdobe PDFView/Open

Items in LRA are protected by copyright, with all rights reserved, unless otherwise indicated.