Validating the new SEE low altitude proton model

摘要

The low altitude (860 km) weather satellites TIROS-N and the NOAAseries measured the inner zone energetic protons for more than a solarcycle. Data from the 16-215, 36-215, and 80-215 MeV omnidirectionalproton sensors have been corrected for magnetic field model andtime-tagging errors and then organized in terms of the averagecolumn-density of residual atmosphere along their drift path. The solarcycle variation in the F_10.7 index is used as a proxy for thesolar cycle variation in scale height of the atmosphere. A phase lag inthe atmospheric response must be included in the analysis. This approachresults in a well-organized data set for an entire solar cycle. Theprogram which is still underway, has produced a preliminary 80-215 MeVmodel for the region below 860 km. The model is organized in terms of L,B/B_min, and F_10.7. The model is cross-correlatedwith Hubble Space Telescope anomaly data (623 km altitude orbit). Thismodel correctly predicts a solar-cycle-associated westward shift in theeffective location of the South Atlantic Anomaly, while AP8 does not