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Deciphering satellite observations of compressional ULF waveguide modes

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Elsden_et_al_2016_Journal_of_Geophysical_Research_Space_Physics.pdf (940.8Kb)
Date
04/2016
Author
Elsden, Tom
Wright, Andrew Nicholas
Hartinger, Michael
Keywords
QB Astronomy
QC Physics
NDAS
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Abstract
We present an analytical method for determining incident and reflection co- efficients for flank ULF compressional waveguide modes in Earth’s magnetosphere. In the flank magnetosphere, compressional waves propagate azimuthally, but exhibit a mixed standing/propagating nature radially. Understanding this radial dependence will yield information on the energy absorption and transport of these waves. We provide a step by step method that can be applied to observations of flank ULF waves, which separates these fluctuations into incident and reflected parts. As a means of testing, we apply the method to data from a numerical waveguide simulation, which shows the effect on the reflection coefficient when energy is absorbed at a field line resonance.
Citation
Elsden , T , Wright , A N & Hartinger , M 2016 , ' Deciphering satellite observations of compressional ULF waveguide modes ' , Journal of Geophysical Research: Space Physics , vol. 121 , no. 4 , pp. 3381-3394 . https://doi.org/10.1002/2016JA022351
Publication
Journal of Geophysical Research: Space Physics
Status
Peer reviewed
DOI
https://doi.org/10.1002/2016JA022351
ISSN
2169-9402
Type
Journal article
Rights
© 2016, American Geophysical Union. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at onlinelibrary.wiley.com / https://dx.doi.org/10.1002/2016JA022351
Description
T. Elsden would like to thank STFC for financial support for a doctoral training grant, number AMC3 STFC12. A.N. Wright was supported by STFC grant ST/N000609/1.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/9702

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