Estimating high-energy electron fluxes by intercalibrating Reimei optical and particle measurements using an ionospheric model

D. K. Whiter, B. S. Lanchester, T. Sakanoi, K. Asamura

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

This paper describes a technique for intercalibrating particle and optical measurements from the Reimei microsatellite using an ionospheric model. Reimei has three auroral cameras ("MAC"), together with electron and ion energy spectrum analysers ("ESA/ISA"). The maximum electron energy measured is 12 keV, which means that during high-energy events, the particle data are often missing an important part of the energy flux. Although the total electron energy flux can be estimated from the optical measurements, the MAC data must be accurately calibrated, which is complicated by an unknown and variable background from sources such as the moon and snow reflection. Using unsaturated ESA measurements of the complete electron spectrum as input for an ionospheric model, the coincident camera observations can be calibrated, allowing estimates to be made of the total electron energy flux at other times during the same event, when the maximum energy is well above that measured by ESA.

Original languageEnglish
Pages (from-to)8-17
Number of pages10
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Volume89
Issue number1
DOIs
Publication statusPublished - 2012 Nov

Keywords

  • Aurora
  • Calibration
  • Electron precipitation
  • Ionosphere

ASJC Scopus subject areas

  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science

Fingerprint

Dive into the research topics of 'Estimating high-energy electron fluxes by intercalibrating Reimei optical and particle measurements using an ionospheric model'. Together they form a unique fingerprint.

Cite this