Average plasma sheet polytropic index as observed by THEMIS

Frühauff, Dennis; Mieth, Johannes Z. D.; Glassmeier, Karl-Heinz

doi:https://doi.org/10.5194/angeo-35-253-2017

Articles | Volume 35, issue 2

https://doi.org/10.5194/angeo-35-253-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/angeo-35-253-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 35, issue 2

Regular paper

|

24 Feb 2017

Regular paper |

| 24 Feb 2017

Average plasma sheet polytropic index as observed by THEMIS

Dennis Frühauff, Johannes Z. D. Mieth, and Karl-Heinz Glassmeier

Data sets

THEMIS data THEMIS http://themis.ssl.berkeley.edu/

Auroral electrojet data World Data Center for Geomagnetism, Kyoto http://wdc.kugi.kyoto-u.ac.jp/

Short summary

The determination of the polytropic index the plasma sheet of Earth's magnetosphere using THEMIS data. The data set reveals that the active magnetotail density and pressure data are well correlated. Yet, considering broad distributions of specific entropies, the evaluation is best performed on shorter timescales.