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SAMI3 ICON: MODEL OF THE IONOSPHERE/PLASMASPHERE SYSTEM.

J D Huba1, A Maute2, G Crowley3

  • 1Naval Research Laboratory, Washington, DC 20375, Tel.: 202-767-6863.

Space Science Reviews
|July 24, 2018
PubMed
Summary
This summary is machine-generated.

The NRL ionosphere/plasmasphere model SAMI3 was updated for NASA ICON, integrating data from TIEGCM-ICON and AMIE. This provides daily ionosphere and thermosphere data, including electron densities and total electron content (TEC).

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Area of Science:

  • Space Physics
  • Atmospheric Science
  • Aeronomy

Background:

  • The ionosphere and plasmasphere are critical regions of Earth's upper atmosphere, influencing radio communications and satellite operations.
  • Accurate modeling of these regions is essential for understanding space weather and its impacts.
  • The Naval Research Laboratory (NRL) ionosphere/plasmasphere model, SAMI3, is a key tool for such studies.

Purpose of the Study:

  • To modify the SAMI3 model to support the NASA Ionospheric Connection Explorer (ICON) mission.
  • To enable daily runs of the SAMI3 ICON model for providing real-time ionosphere and thermosphere data.
  • To enhance the scientific community's access to critical ionospheric and plasmaspheric parameters.

Main Methods:

  • The SAMI3 model was adapted, creating a version named SAMI3 ICON.
  • SAMI3 ICON was enhanced to import thermospheric composition, temperature, and winds from the Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIEGCM-ICON).
  • High-latitude electric potential data from the Assimilative Model of Ionospheric Electrodynamics (AMIE) were incorporated.

Main Results:

  • The modified SAMI3 ICON model is operational and ready for daily use during the ICON mission.
  • The model will provide essential ionospheric and plasmaspheric parameters, including electron and ion densities, temperatures, and velocities.
  • Key outputs will include total electron content (TEC), peak ionospheric electron density (NmF2), and the height of the F layer at NmF2 (hmF2).

Conclusions:

  • The SAMI3 ICON model represents a significant advancement in simulating the ionosphere and plasmasphere.
  • Daily data provision will greatly benefit the NASA ICON mission and the broader space science community.
  • This enhanced modeling capability will improve our understanding of upper atmospheric dynamics and space weather.