eprintid: 153166
rev_number: 47
eprint_status: archive
userid: 608
dir: disk0/00/15/31/66
datestamp: 2010-10-29 17:52:08
lastmod: 2021-10-08 21:56:50
status_changed: 2012-08-01 13:28:15
type: article
metadata_visibility: show
item_issues_count: 0
creators_name: Horbury, T
creators_name: Burgess, D
creators_name: Fraenz, M
creators_name: OWEN, CJ
title: Three spacecraft observations of solar wind discontinuities
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F63
keywords: Discontinuity, Observation, Wind
note: Copyright 2001 by the American Geophysical Union
abstract: Observations of solar wind magnetic field discontinuities using 3 spacecraft allow their orientations to be estimated. During 5 days when Geotail, Wind and IMP 8 were between 6 × 104 and 4 × 105 km apart, 35 events identified using the Tsurutani‐Smith method were detected in all 3 magnetic field data sets. Normals estimated from inter‐spacecraft timings showed that very few were unambiguous rotational discontinuities, with 77% likely to be tangential, with < 20% of the magnetic field at the discontinuity threading the normal plane. However, previous single spacecraft studies using minimum variance suggest that most discontinuities are rotational. Minimum variance analysis resulted in many normal estimates lying far from the timing‐derived normals. While some of this discrepancy is likely to be due to random errors in minimum variance vectors, there appears to be a class of events with small field magnitude changes where the minimum variance directions and discontinuity normals are approximately perpendicular, probably due to surface waves on the discontinuities.
date: 2001-02-15
publisher: American Geophysical Union
official_url: http://dx.doi.org/10.1029/2000GL000121
vfaculties: VMPS
oa_status: green
language: eng
primo: open
primo_central: open_green
article_type_text: Article
verified: verified_manual
elements_source: Manually entered
elements_id: 18393
doi: 10.1029/2000GL000121
lyricists_name: Owen, Christopher
lyricists_id: CJOWE13
full_text_status: public
publication: Geophysical Research Letters
volume: 28
number: 4
pagerange: 677 - 680
issn: 0094-8276
citation:        Horbury, T;    Burgess, D;    Fraenz, M;    OWEN, CJ;      (2001)    Three spacecraft observations of solar wind discontinuities.                   Geophysical Research Letters , 28  (4)   677 - 680.    10.1029/2000GL000121 <https://doi.org/10.1029/2000GL000121>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/153166/1/2000GL000121.pdf