View in EDS HTML Full Text PDF Full Text

Earth's magnetosheath: a comparison of plasma flow direction between models and observations.

Saved in:
Bibliographic Details
Title: Earth's magnetosheath: a comparison of plasma flow direction between models and observations.
Authors: Vandas, Marek1 (AUTHOR), Romashets, Evgeny2 (AUTHOR) eromashets@lamar.edu
Source: Annales Geophysicae (ANGEO) (09927689). 2026, Vol. 44 Issue 1, p137-148. 12p.
Subject Terms: *Plasma flow, *Model validation, *Geomagnetism, *Magnetosphere
Abstract: Observations of the plasma flow direction in the Earth's magnetosheath are compared with the help of three analytical magnetic-field models, namely Kobel and Flückiger (1994), Romashets and Vandas (2019), and Vandas and Romashets (2019), which all assume current-free fields in the magnetosheath. 47 magnetosheath passages by spacecraft are analyzed in detail and performance of the models are evaluated. It is concluded that the performances measured by mean angles between model and observed flow directions are comparable among the models (the difference of the mean angles is below about 1°), and that they are satisfactory on average (overall mean angles are below 5°). Therefore, a usage of the model by Kobel and Flückiger (1994) is recommended, because it is the simplest one and yields results much faster. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: enr
DbLabel: Energy & Power Source
An: 195318158
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Earth's magnetosheath: a comparison of plasma flow direction between models and observations.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Vandas%2C+Marek%22">Vandas, Marek</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Romashets%2C+Evgeny%22">Romashets, Evgeny</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> eromashets@lamar.edu</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Annales+Geophysicae+%28ANGEO%29+%2809927689%29%22">Annales Geophysicae (ANGEO) (09927689)</searchLink>. 2026, Vol. 44 Issue 1, p137-148. 12p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Plasma+flow%22">Plasma flow</searchLink><br />*<searchLink fieldCode="DE" term="%22Model+validation%22">Model validation</searchLink><br />*<searchLink fieldCode="DE" term="%22Geomagnetism%22">Geomagnetism</searchLink><br />*<searchLink fieldCode="DE" term="%22Magnetosphere%22">Magnetosphere</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Observations of the plasma flow direction in the Earth's magnetosheath are compared with the help of three analytical magnetic-field models, namely Kobel and Flückiger (1994), Romashets and Vandas (2019), and Vandas and Romashets (2019), which all assume current-free fields in the magnetosheath. 47 magnetosheath passages by spacecraft are analyzed in detail and performance of the models are evaluated. It is concluded that the performances measured by mean angles between model and observed flow directions are comparable among the models (the difference of the mean angles is below about 1°), and that they are satisfactory on average (overall mean angles are below 5°). Therefore, a usage of the model by Kobel and Flückiger (1994) is recommended, because it is the simplest one and yields results much faster. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=195318158
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.5194/angeo-44-137-2026
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 137
    Subjects:
      – SubjectFull: Plasma flow
        Type: general
      – SubjectFull: Model validation
        Type: general
      – SubjectFull: Geomagnetism
        Type: general
      – SubjectFull: Magnetosphere
        Type: general
    Titles:
      – TitleFull: Earth's magnetosheath: a comparison of plasma flow direction between models and observations.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Vandas, Marek
      – PersonEntity:
          Name:
            NameFull: Romashets, Evgeny
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 01
              Text: 2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 09927689
          Numbering:
            – Type: volume
              Value: 44
            – Type: issue
              Value: 1
          Titles:
            – TitleFull: Annales Geophysicae (ANGEO) (09927689)
              Type: main
ResultId 1