TY - JOUR
T1 - Estimating high-energy electron fluxes by intercalibrating Reimei optical and particle measurements using an ionospheric model
AU - Whiter, D. K.
AU - Lanchester, B. S.
AU - Sakanoi, T.
AU - Asamura, K.
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2012/11
Y1 - 2012/11
N2 - 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.
AB - 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.
KW - Aurora
KW - Calibration
KW - Electron precipitation
KW - Ionosphere
UR - http://www.scopus.com/inward/record.url?scp=84865297118&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84865297118&partnerID=8YFLogxK
U2 - 10.1016/j.jastp.2012.06.014
DO - 10.1016/j.jastp.2012.06.014
M3 - Article
AN - SCOPUS:84865297118
VL - 89
SP - 8
EP - 17
JO - Journal of Atmospheric and Solar-Terrestrial Physics
JF - Journal of Atmospheric and Solar-Terrestrial Physics
SN - 1364-6826
IS - 1
ER -