Enhanced Radiation Levels at Aviation Altitudes and Their Relationship to Plasma Waves in the Inner Magnetosphere

Abstract It is believed that galactic cosmic rays and solar energetic particles are the two major sources of ionizing radiation. However, the radiation source may also be due to relativistic electrons that are associated with precipitation from the Van Allen radiation belts. In this study, we use Au...

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Main Authors: Homayon Aryan, Jacob Bortnik, W. Kent Tobiska, Piyush Mehta, Rashmi Siddalingappa
Format: Article
Language:English
Published: Wiley 2023-10-01
Series:Space Weather
Subjects:
Online Access:https://doi.org/10.1029/2023SW003477
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author Homayon Aryan
Jacob Bortnik
W. Kent Tobiska
Piyush Mehta
Rashmi Siddalingappa
author_facet Homayon Aryan
Jacob Bortnik
W. Kent Tobiska
Piyush Mehta
Rashmi Siddalingappa
author_sort Homayon Aryan
collection DOAJ
description Abstract It is believed that galactic cosmic rays and solar energetic particles are the two major sources of ionizing radiation. However, the radiation source may also be due to relativistic electrons that are associated with precipitation from the Van Allen radiation belts. In this study, we use Automated Radiation Measurements for Aerospace Safety (ARMAS) measurements to investigate the precipitation mechanism of energetic radiation belt electrons. ARMAS instruments are flown on agency‐sponsored (NASA, National Oceanic and Atmospheric Administration, National Science Foundation, Federal Aviation Administration, DOE) flights, commercial space transportation companies and airliners (>9 km) in automated radiation collection mode. We identified magnetic conjunction events between ARMAS and NASA's Van Allen Probes to study the highly variable, dynamic mesoscale radiation events observed by ARMAS instruments at aviation altitudes and their relationship to various plasma waves in the inner magnetosphere measured by the Van Allen Probes. The results show that there is a strong correlation between dose rates observed by ARMAS and plasmaspheric hiss wave power measured by the Van Allen Probes, but no such relationship with electromagnetic ion cyclotron waves and only a modest correlation with whistler mode chorus waves. These results suggest that the space environment could have a potentially significant effect on passenger safety.
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spelling doaj-art-71fdfb1ba6164339bc8bc77f183b91672025-01-14T16:31:16ZengWileySpace Weather1542-73902023-10-012110n/an/a10.1029/2023SW003477Enhanced Radiation Levels at Aviation Altitudes and Their Relationship to Plasma Waves in the Inner MagnetosphereHomayon Aryan0Jacob Bortnik1W. Kent Tobiska2Piyush Mehta3Rashmi Siddalingappa4Atmospheric and Oceanic Sciences University of California Los Angeles Los Angeles CA USAAtmospheric and Oceanic Sciences University of California Los Angeles Los Angeles CA USASpace Weather Division Space Environment Technologies Pacific Palisades CA USAMechanical and Aerospace Engineering West Virginia University Morgantown WV USAMechanical and Aerospace Engineering West Virginia University Morgantown WV USAAbstract It is believed that galactic cosmic rays and solar energetic particles are the two major sources of ionizing radiation. However, the radiation source may also be due to relativistic electrons that are associated with precipitation from the Van Allen radiation belts. In this study, we use Automated Radiation Measurements for Aerospace Safety (ARMAS) measurements to investigate the precipitation mechanism of energetic radiation belt electrons. ARMAS instruments are flown on agency‐sponsored (NASA, National Oceanic and Atmospheric Administration, National Science Foundation, Federal Aviation Administration, DOE) flights, commercial space transportation companies and airliners (>9 km) in automated radiation collection mode. We identified magnetic conjunction events between ARMAS and NASA's Van Allen Probes to study the highly variable, dynamic mesoscale radiation events observed by ARMAS instruments at aviation altitudes and their relationship to various plasma waves in the inner magnetosphere measured by the Van Allen Probes. The results show that there is a strong correlation between dose rates observed by ARMAS and plasmaspheric hiss wave power measured by the Van Allen Probes, but no such relationship with electromagnetic ion cyclotron waves and only a modest correlation with whistler mode chorus waves. These results suggest that the space environment could have a potentially significant effect on passenger safety.https://doi.org/10.1029/2023SW003477space weatherenhanced radiationplasma wavesaviation altitudesinner magnetosphereradiation belts
spellingShingle Homayon Aryan
Jacob Bortnik
W. Kent Tobiska
Piyush Mehta
Rashmi Siddalingappa
Enhanced Radiation Levels at Aviation Altitudes and Their Relationship to Plasma Waves in the Inner Magnetosphere
Space Weather
space weather
enhanced radiation
plasma waves
aviation altitudes
inner magnetosphere
radiation belts
title Enhanced Radiation Levels at Aviation Altitudes and Their Relationship to Plasma Waves in the Inner Magnetosphere
title_full Enhanced Radiation Levels at Aviation Altitudes and Their Relationship to Plasma Waves in the Inner Magnetosphere
title_fullStr Enhanced Radiation Levels at Aviation Altitudes and Their Relationship to Plasma Waves in the Inner Magnetosphere
title_full_unstemmed Enhanced Radiation Levels at Aviation Altitudes and Their Relationship to Plasma Waves in the Inner Magnetosphere
title_short Enhanced Radiation Levels at Aviation Altitudes and Their Relationship to Plasma Waves in the Inner Magnetosphere
title_sort enhanced radiation levels at aviation altitudes and their relationship to plasma waves in the inner magnetosphere
topic space weather
enhanced radiation
plasma waves
aviation altitudes
inner magnetosphere
radiation belts
url https://doi.org/10.1029/2023SW003477
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AT wkenttobiska enhancedradiationlevelsataviationaltitudesandtheirrelationshiptoplasmawavesintheinnermagnetosphere
AT piyushmehta enhancedradiationlevelsataviationaltitudesandtheirrelationshiptoplasmawavesintheinnermagnetosphere
AT rashmisiddalingappa enhancedradiationlevelsataviationaltitudesandtheirrelationshiptoplasmawavesintheinnermagnetosphere