Predictive model of magnetosheath plasma flow and its validation against Cluster and THEMIS data

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F12%3A00378977" target="_blank" >RIV/68378289:_____/12:00378977 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5194/angeo-30-973-2012" target="_blank" >http://dx.doi.org/10.5194/angeo-30-973-2012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/angeo-30-973-2012" target="_blank" >10.5194/angeo-30-973-2012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Predictive model of magnetosheath plasma flow and its validation against Cluster and THEMIS data

Popis výsledku v původním jazyce

An analytical model of magnetosheath plasma flow is described and compared with a large dataset of magnetosheath ion flow velocity measurements from Cluster and THEMIS spacecraft. The model is based on previous works by Kobel and Fluckiger (1994) and G´enot et al. (2011) and has been modified to overcome the restrictions of these models on the shape of model magnetopause and bow shock. Our model is compatible with any parabolic bow shock model and arbitrary magnetopause model. The model is relatively simple to implement and computationally inexpensive, and its only inputs are upstream solar wind parameters. Comparison with observed data yields a good correspondence: median error in the direction of flow velocity is comparable with the instrumental error, and flow magnitude is predicted with a reasonable accuracy (relative error in flow speed was less than 25% for 86.5% of observations).

Název v anglickém jazyce

Predictive model of magnetosheath plasma flow and its validation against Cluster and THEMIS data

Popis výsledku anglicky

An analytical model of magnetosheath plasma flow is described and compared with a large dataset of magnetosheath ion flow velocity measurements from Cluster and THEMIS spacecraft. The model is based on previous works by Kobel and Fluckiger (1994) and G´enot et al. (2011) and has been modified to overcome the restrictions of these models on the shape of model magnetopause and bow shock. Our model is compatible with any parabolic bow shock model and arbitrary magnetopause model. The model is relatively simple to implement and computationally inexpensive, and its only inputs are upstream solar wind parameters. Comparison with observed data yields a good correspondence: median error in the direction of flow velocity is comparable with the instrumental error, and flow magnitude is predicted with a reasonable accuracy (relative error in flow speed was less than 25% for 86.5% of observations).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BN - Astronomie a nebeská mechanika, astrofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP209%2F12%2F2394" target="_blank" >GAP209/12/2394: Úloha nízkofrekvenčních plazmových vln v globální dynamice planetárních magnetosfér</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Annales Geophysicae

ISSN

0992-7689

e-ISSN

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Svazek periodika

30

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

973-982

Kód UT WoS článku

000305838500007

EID výsledku v databázi Scopus

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