The Ionospheric Bubble Index deduced from magnetic field and plasma observations onboard <i>Swarm</i>

Abstract
<p>In the post-sunset tropical ionospheric F-region plasma density often exhibits depletions, which are usually called equatorial plasma bubbles (EPBs). In this paper we give an overview of the Swarm Level 2 Ionospheric Bubble Index (IBI), which is a standard scientific data of the Swarm mission. This product called L2-IBI is generated from magnetic field and plasma observations onboard Swarm, and gives information as to whether a Swarm magnetic field observation is affected by EPBs. We validate the performance of the L2-IBI product by using magnetic field and plasma measurements from the CHAMP satellite, which provided observations similar to those of the Swarm. The L2-IBI product is of interest not only for ionospheric studies, but also for geomagnetic field modeling; modelers can de-select magnetic data which are affected by EPBs or other unphysical artifacts.</p>
Year of Publication
2013
Journal
Earth, Planets and Space
Volume
65
Number of Pages
1333-1344
Date Published
11/2014
ISSN Number
13438832
URL
http://www.terrapub.co.jp/journals/EPS/abstract/6511/65111333.html
DOI
10.5047/eps.2013.08.005