Journal
EARTH PLANETS AND SPACE
Volume 65, Issue 11, Pages 1333-1344Publisher
TERRA SCIENTIFIC PUBL CO
DOI: 10.5047/eps.2013.08.005
Keywords
Plasma irregularity; equatorial ionosphere; topside ionosphere
Categories
Funding
- Space Agency of the German Aerospace Center (DLR) through funds of the Federal Ministry of Economics and Technology of the German Federal Parliament [50EE0944]
- ESA (ESTEC) [4000102140/10/NL/JA]
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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.
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