Authors: Arik Posner (NASA HQ, NASA JSC), R. Du Toit Strauss (Northwest Univ., ZA)

As part of a recent study, “Warning Time Analysis From SEP Simulations of a Two‐Tier REleASE System Applied to Mars Exploration” (Posner & Strauss, Space Weather, 2020), we calculated a worst-case scenario radiation exposure to solar energetic protons and proton dose rate that human explorers can be affected by. We also assessed whether timely warnings of sudden SEP increases may reduce radiation exposure by allowing astronauts sufficient time to move to a radiation shelter. The saved dose rate and total dose for a worst-case scenario have been derived, assuming a 30-minute advance warning time. One caveat of this calculation is the inaccuracy of GOES proton observations. This SHINE contribution will recap the details of our derived dose rate estimation and will suggest a pathway of how to address reduction in the current level of uncertainty stemming from the instrumentation used to determine radiation hazards.