On increasing accuracy of bow shock shape and position predictions

Details On increasing accuracy of bow shock shape and position predictions On increasing accuracy of bow shock shape and position predictions

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..781...84m&link_type=abstract

THE PHYSICS OF COLLISIONLESS SHOCKS: 4th Annual IGPP International Astrophysics Conference. AIP Conference Proceedings, Volume

Astronomy and Astrophysics

Astrophysics

1

Shock Waves, Magnetosphere, Planetary Bow Shocks, Interplanetary Shocks

Scientific paper

In more than three decades, spacecraft have crossed the terrestrial bow shock tens of thousand times providing enough data to construct many bow shock models. However, several studies have demonstrated severe limitations in the predictive capabilities of the most used bow shock models due to inadequate parameterization and/or limited amount of data employed. The accuracy of bow shock models is also hindered by the fact that bow shock models predict an equilibrium position for given conditions while spacecraft generally observe a moving shock. Furthermore, Merka and Szabo recently pointed out that the dipole tilt angle and the solar wind/IMF angle significantly influence bow shock position but are not accounted for in any of the existing bow shock models. The present paper discusses the limitations of the current approaches in bow shock modeling and outlines the ingredients required for improving predictive capabilities of bow shock models.

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