File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Is Nightside Outflow Required to Induce Magnetospheric Sawtooth Oscillations

TitleIs Nightside Outflow Required to Induce Magnetospheric Sawtooth Oscillations
Authors
Keywordsionospheric outflow
sawtooth oscillation
magnetotail
multifluid MHD
cusp
Issue Date2020
PublisherAmerican Geophysical Union. The Journal's web site is located at https://agupubs.onlinelibrary.wiley.com/journal/19448007
Citation
Geophysical Research Letters, 2020, v. 47 n. 6, p. article no. e2019GL086419 How to Cite?
AbstractIonospheric outflow plays an important role in the mass coupling between the ionosphere and the coupled solar wind-magnetosphere system. Previous modeling studies have shown that outflowing ionospheric ions may induce magnetospheric sawtooth oscillations through mass loading of the magnetotail, stretching the magnetic field lines, and reducing nightside reconnection. The spatial distribution of polar cap outflow in these simulation studies produces significant outflow in the auroral oval and lacks a distinct cusp source. Thus, the question arises whether cusp outflow can induce sawtooth oscillations. We show controlled numerical experiments with magnetospheric sawtooth oscillations induced by an idealized cusp outflow for driving conditions representative of the interaction of an interplanetary coronal mass ejection with Earth's magnetosphere. The analysis shows that although only a small portion (10%) of the cusp outflow is entrained within the plasma sheet, it is effective in inducing magnetospheric sawtooth oscillations, similar to previous experiments.
Persistent Identifierhttp://hdl.handle.net/10722/284051
ISSN
2023 Impact Factor: 4.6
2023 SCImago Journal Rankings: 1.850
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, B-
dc.contributor.authorBrambles, OJ-
dc.contributor.authorLotko, W-
dc.contributor.authorLyon, JG-
dc.date.accessioned2020-07-20T05:55:42Z-
dc.date.available2020-07-20T05:55:42Z-
dc.date.issued2020-
dc.identifier.citationGeophysical Research Letters, 2020, v. 47 n. 6, p. article no. e2019GL086419-
dc.identifier.issn0094-8276-
dc.identifier.urihttp://hdl.handle.net/10722/284051-
dc.description.abstractIonospheric outflow plays an important role in the mass coupling between the ionosphere and the coupled solar wind-magnetosphere system. Previous modeling studies have shown that outflowing ionospheric ions may induce magnetospheric sawtooth oscillations through mass loading of the magnetotail, stretching the magnetic field lines, and reducing nightside reconnection. The spatial distribution of polar cap outflow in these simulation studies produces significant outflow in the auroral oval and lacks a distinct cusp source. Thus, the question arises whether cusp outflow can induce sawtooth oscillations. We show controlled numerical experiments with magnetospheric sawtooth oscillations induced by an idealized cusp outflow for driving conditions representative of the interaction of an interplanetary coronal mass ejection with Earth's magnetosphere. The analysis shows that although only a small portion (10%) of the cusp outflow is entrained within the plasma sheet, it is effective in inducing magnetospheric sawtooth oscillations, similar to previous experiments.-
dc.languageeng-
dc.publisherAmerican Geophysical Union. The Journal's web site is located at https://agupubs.onlinelibrary.wiley.com/journal/19448007-
dc.relation.ispartofGeophysical Research Letters-
dc.rightsGeophysical Research Letters. Copyright © American Geophysical Union.-
dc.rights©[2020]. American Geophysical Union. All Rights Reserved. This article is available at https://doi.org/10.1029/2019GL086419-
dc.subjectionospheric outflow-
dc.subjectsawtooth oscillation-
dc.subjectmagnetotail-
dc.subjectmultifluid MHD-
dc.subjectcusp-
dc.titleIs Nightside Outflow Required to Induce Magnetospheric Sawtooth Oscillations-
dc.typeArticle-
dc.identifier.emailZhang, B: binzh@hku.hk-
dc.identifier.authorityZhang, B=rp02366-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1029/2019GL086419-
dc.identifier.scopuseid_2-s2.0-85082532904-
dc.identifier.hkuros310830-
dc.identifier.volume47-
dc.identifier.issue6-
dc.identifier.spagearticle no. e2019GL086419-
dc.identifier.epagearticle no. e2019GL086419-
dc.identifier.isiWOS:000529097700001-
dc.publisher.placeUnited States-
dc.identifier.issnl0094-8276-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats