Oscillatory signatures above quiet sun magnetic elements

D. Shaun Bloomfield, R. T. James McAteer, Bruce W. Lites, Philip G. Judge, Mihalis Mathioudakis, Francis P. Keenan

Research output: Contribution to journalConference articlepeer-review

Abstract

A new application of wavelet analysis is presented. The data used are part of Joint Observing Proposal 72 between SoHO and TRACE, obtained on 1998 May 16 with accompanying groundbased data taken with the Dunn Solar Telescope at Sacramento Peak, New Mexico. A weak magnetic network region is studied and the temporal variation of phase difference between TRACE 1700Å and SoHO/SUMER C II intensities is shown. The example clearly highlights the advantages of wavelet analysis over more classical techniques such as Fourier analysis, where the effectiveness of the technique to identify wavepackets with differing phase difference relations is emphasised.

Original languageEnglish
Pages (from-to)51-55
Number of pages5
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number547
StatePublished - 2004
EventProceedings of the Conference SOHO 13 - Waves, Oscillations and Small-Scale Transient Events in the Solar Atmosphere: A Joint View from SOHO and TRACE - Balearic Islands, Spain
Duration: Sep 29 2003Oct 3 2003

Keywords

  • Chromosphere
  • Oscillations
  • Phase difference
  • Wavelet analysis

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