Particle radiation environment in the heliosphere: Status, limitations, and recommendations

We thank the four anonymous referees for their time and effort in reviewing this article. We acknowledge the COSPAR ISWAT community and their effort in organizing this special activity, in particular the dedicated endeavor of Masha Kuznetsova and Mario Bisi. J.G. is supported by the National Natural Science Foundation of China (grants 42188101, 42074222, 42130204) and the Strategic Priority Program of the Chinese Academy of Sciences (grant XDB41000000). B.W. was supported in part by a US National Science Foundation EPSCoR RII-Track-1 Cooperative Agreement (OIA-2148653). C.C. is supported by NASA grants NNN06AA01C, 80NSSC18K1446, 80NSSC18K0223, and JHU.APL173063. S.D. acknowledges support from the UK Natural Environment Research Council (grant NE/V002864/1) and the UK Science and Technology Facilities Council (grant ST/V000934/1). M.D. acknowledges support from the Croatian Science Foundation under the project IP-2020–02-9893 (ICOHOSS). L.W. is supported in part by the National Natural Science Foundation of China under contracts 42225404, 42127803, and 42150105. H.M.B. conducted this work while supported by Cooperative Agreement award NA17OAR4320101. The Integrated Solar Energetic Proton Alert/Warning System project transitioning SEP models to real-time operations and the development of the SEP Scoreboard is supported by the Advanced Exploration Systems Division under the Human Exploration and Operations Mission Directorate of NASA and is performed in support of the Human Health and Performance Contract for NASA (NNJ15HK11B). Part of the research described in this article was performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA (80NM0018D0004).