13-19 June 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

Energetic Electron Precipitation Model

15 Jun 2015, 14:15
15m
CAB 243 (University of Alberta)

CAB 243

University of Alberta

Oral (Non-Student) / orale (non-étudiant) Atmospheric and Space Physics / Physique atmosphérique et de l'espace (DASP-DPAE) M1-3 Theory, modelling and space weather I (DASP) / Théorie, modélisation et climat spatial I (DPAE)

Speaker

Alexei Kouznetsov (University of Calgary)

Description

Energetic electron precipitations cause atmospheric ionization - a complicated process which depends on many parameters. We present our energetic particles precipitation model which consists of three main parts: Energetic electron sources; Coupled electron/photon transport in the earth atmosphere; RIOMETERs and Very Low Frequency (VLF) receivers response to energetic electron precipitations. The primary source of energetic electrons - Van-Allen radiation belts - occupy a vast region of space and accumulate an immense amount of energy. In the Northern hemisphere they map to a broad ring crossing Canada. Under certain conditions trapped electrons can penetrate even deeper into the atmosphere causing modulations of free electron densities of D-Layer. The model implements coupled electron/photon transport based on MCNP 6 general transport code. Model verification uses data from the Medium Energy Proton and Electron Detector instrument on NOAA's POES satellite. Calculated electron fluxes and estimated electron density altitudinal profiles are used to construct and validate a realistic transport model that maps energetic electron fluxes incident on the upper atmosphere to GO CANADA (RIOMETERs and VLF receivers) instrument responses.

Primary author

Alexei Kouznetsov (University of Calgary)

Co-author

Dr Christopher Cully (University of Calgary)

Presentation Materials