Abstract
Radiation hazards at commercial aviation altitudes up to suborbital
space have been known for decades including those from galactic cosmic
rays (GCRs), solar energetic particles (SEPs), and more recently
radiation belt particle precipitation (RBPP). The complex radiation
field that derives from these primary particle sources creates safety
concerns for aerospace crew and passengers. Because of this safety
hazard, the Automated Radiation Measurements for Aerospace Safety
(ARMAS) program was developed to provide global aerospace radiation
environment monitoring. The ARMAS TRL 9 operational system has now
achieved monitoring from the surface of the Earth into Low Earth Orbit
(LEO) with aircraft, high altitude balloon, suborbital vehicle,
satellite and ISS flights over the past year. We present the latest
results from i) the various flight domains; ii) the calibrations of the
ARMAS system with the Tissue Equivalent Proportional Counter (TEPC); and
iii) the ongoing real-time data assimilation of ARMAS data into the
RADIAN system using NAIRAS v2 baseline global fields and CARI-7
verifications. We also describe progress towards 24/7 atmospheric
monitoring from both the perspective of new sensor development as well
as new stratospheric monitoring platforms.