Database of ion temperature maps during geomagnetic storms

Earth and Space Science

Amy M. Keesee¹ 

[1] ORCID:orcid.org/0000-0002-9719-3229

关键词: magnetosphere;    plasma sheet;    ion temperature;    geomagnetic storm;    energetic neutral atom imaging;   

DOI  :  10.1002/2014EA000061

来源: Wiley

【 摘 要 】

Abstract

Ion temperatures as a function of the x and y axes in the geocentric solar magnetospheric (GSM) coordinate system and time are available for 76 geomagnetic storms that occurred during the period July 2008 to December 2013 on CDAWeb. The method for mapping energetic neutral atom data from the Two Wide-angle Imaging Spectrometers (TWINS) mission to the GSM equatorial plane and subsequent ion temperature calculation are described here. The ion temperatures are a measure of the average thermal energy of the bulk ion population in the 1–40 keV energy range. These temperatures are useful for studies of ion dynamics, for placing in situ measurements in a global context, and for establishing boundary conditions for models of the inner magnetosphere and the plasma sheet.

【 授权许可】

CC BY-NC-ND   
©2015. American Geophysical Union. All Rights Reserved.

Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.