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Related Experiment Videos

A new Mars radiation environment model with visualization.

G De Angelis1, M S Clowdsley, R C Singleterry

  • 1Old Dominion University, Norfolk, VA 23508, USA. g.deangelis@larc.nasa.gov

Advances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)
|May 11, 2005
PubMed
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A new model simulates the Martian radiation environment from Galactic Cosmic Rays (GCRs). This tool accounts for atmospheric and surface conditions, providing crucial data for future Mars missions.

Area of Science:

  • Planetary Science
  • Space Radiation Physics
  • Astrobiology

Background:

  • Galactic Cosmic Rays (GCRs) pose a significant radiation hazard on Mars.
  • Accurate modeling of the Martian radiation environment is crucial for human exploration and understanding potential habitability.
  • Previous models lacked comprehensive integration of atmospheric and surface variations.

Purpose of the Study:

  • To develop a new, comprehensive model for the Martian radiation environment.
  • To incorporate solar modulation, atmospheric transport, surface interactions, and temporal variations.
  • To provide a publicly accessible tool for radiation environment assessment.

Main Methods:

  • Utilized the Mars Global Reference Atmospheric Model (Mars-GRAM 2001) for atmospheric conditions.
Keywords:
NASA Center LaRCNASA Discipline Radiation Health

Related Experiment Videos

  • Incorporated Mars topography data from the Mars Orbiter Laser Altimeter (MOLA).
  • Employed the HZETRN heavy ion code for particle transport simulations.
  • Modeled surface composition and volatile inventory, including seasonal variations.

    • Main Results:

    • Developed a new Mars Radiation Environment Model (MREM).
    • The model accounts for altitude, backscattering, and temporal changes in atmospheric and surface conditions.
    • The model is accessible via the Space Ionizing Radiation Effects and Shielding Tools (SIREST) website.

    Conclusions:

    • The new MREM provides a detailed and dynamic representation of the Martian radiation environment.
    • This model is a valuable resource for mission planning, radiation shielding design, and astrobiological studies on Mars.
    • Enhanced accessibility through SIREST facilitates broader scientific use and collaboration.