Terrestrial ionospheric signatures of field-aligned currents

The occurrence of traveling field-aligned current filaments and twin-vortex patterns is suggested to be related to sudden changes in solar wind dynamic pressure and/or the IMF. Greenland magnetometer observations of the cleft region magnetic perturbations associated with small-scale twin-vortex patt...

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Main Author: Friis-Christensen, E.
Language:unknown
Published: 1990
Subjects:
46
Greenland
Online Access:http://ntrs.nasa.gov/search.jsp?R=19920048651
id ftnasantrs:oai:casi.ntrs.nasa.gov:19920048651
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19920048651 2023-05-15T16:26:42+02:00 Terrestrial ionospheric signatures of field-aligned currents Friis-Christensen, E. Unclassified, Unlimited, Publicly available JAN 1, 1990 http://ntrs.nasa.gov/search.jsp?R=19920048651 unknown http://ntrs.nasa.gov/search.jsp?R=19920048651 Accession ID: 92A31275 Copyright Other Sources 46 1990 ftnasantrs 2012-02-15T19:31:24Z The occurrence of traveling field-aligned current filaments and twin-vortex patterns is suggested to be related to sudden changes in solar wind dynamic pressure and/or the IMF. Greenland magnetometer observations of the cleft region magnetic perturbations associated with small-scale twin-vortex patterns show that these events occur on both sides of the magnetic local noon, contradicting Glassmeier at al.'s (1989) statistical analysis of 82 twin-vortex subauroral-latitude events obtained by the Scandinavian Magnetometer Array; the stations are closer to the ionospheric projection of the cleft earlier in magnetic local time, relative to the across-the-cleft-located Greenland stations. Other/Unknown Material Greenland NASA Technical Reports Server (NTRS) Greenland
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 46
spellingShingle 46
Friis-Christensen, E.
Terrestrial ionospheric signatures of field-aligned currents
topic_facet 46
description The occurrence of traveling field-aligned current filaments and twin-vortex patterns is suggested to be related to sudden changes in solar wind dynamic pressure and/or the IMF. Greenland magnetometer observations of the cleft region magnetic perturbations associated with small-scale twin-vortex patterns show that these events occur on both sides of the magnetic local noon, contradicting Glassmeier at al.'s (1989) statistical analysis of 82 twin-vortex subauroral-latitude events obtained by the Scandinavian Magnetometer Array; the stations are closer to the ionospheric projection of the cleft earlier in magnetic local time, relative to the across-the-cleft-located Greenland stations.
author Friis-Christensen, E.
author_facet Friis-Christensen, E.
author_sort Friis-Christensen, E.
title Terrestrial ionospheric signatures of field-aligned currents
title_short Terrestrial ionospheric signatures of field-aligned currents
title_full Terrestrial ionospheric signatures of field-aligned currents
title_fullStr Terrestrial ionospheric signatures of field-aligned currents
title_full_unstemmed Terrestrial ionospheric signatures of field-aligned currents
title_sort terrestrial ionospheric signatures of field-aligned currents
publishDate 1990
url http://ntrs.nasa.gov/search.jsp?R=19920048651
op_coverage Unclassified, Unlimited, Publicly available
geographic Greenland
geographic_facet Greenland
genre Greenland
genre_facet Greenland
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19920048651
Accession ID: 92A31275
op_rights Copyright
_version_ 1766015670052454400

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