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  • NAM2019
    • Registration
    • Key Dates & Outline Schedule
    • Practical Information
    • Exhibitors
    • Grants & Bursaries
    • Contacts
  • Science
    • Science Programme
    • Parallel Sessions
    • Plenary Talks
    • Community Session
    • Special Lunches
    • Posters
    • Presenter Guidelines
  • Social
    • What's On
    • Welcome Reception
    • RAS Awards Dinner
  • Media
  • Outreach
    • Outreach and Education Day
    • Fringe Event
    • School Visit Day
  • Lancaster
    • Travel
    • Accommodation
    • Childcare
    • Campus Map
    • About Lancaster
    • Code of Conduct

Poster

id
Auroral and field-aligned current signatures associated with substorms and steady magnetospheric convection
MISTGeneral
Steve
Milan
Date Submitted
2019-03-14 16:28:02
University of Leicester
S. E. Milan, H. Sangha, J. A. Carter (University of Leicester, UK), B. J. Anderson, L. Paxton (JHU/APL, USA)
The terrestrial auroras are in large part produced by the field-aligned currents (FACs) that transmit stress from the magnetosphere to the ionosphere as a consequence of solar wind-magnetosphere-ionosphere coupling. Substorms and steady magnetospheric convection events, as important modes of magnetospheric response to the SW-M-I interaction, produce characteristic signatures in the FACs and auroras. In this study we employ measurements of FACs from the Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) and the auroras from the Defense Meteorological Satellite Program (DMSP) SSUSI instrument to investigate the differences and similarities in morphology and dynamics produced by impulsive and steady magnetotail reconnection, and discuss the relationship between these two modes of coupling.

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