This part of IEC 62396, which is a technical report, provides information intended to improve the understanding of extreme space weather events; it details the mechanisms and conditions that produce \u201cextreme space weather\u201d (ESW) as a result of a large increase in the activity on the surface of the sun and it discusses the potential radiation environment based on projection of previous recorded ESW.<\/p>\n
This document does not detail the solutions with regard to the ESW events whose occurrence is extremely rare. As the stakes related to ESW environment go widely beyond the electronics issues and there are a lot of other elements in consideration (human concern for example), this document does not detail potential specific provisions or mitigations.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 4 Abbreviated terms and acronyms <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 5 Extreme space weather (ESW) 5.1 General 5.2 Space weather relevant to avionics <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5.3 Examples of proton spectra for GLEs <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5.4 GLEs in recent history Figure 1 \u2013 23 February 1956 GLE \u2013 Integral and differential proton spectra fitted with band and exponential functions Figure 2 \u2013 19 October 1989 GLE \u2013 Integral and differential proton spectra fitted with band and exponential functions <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5.5 GLEs inferred from historical data 5.5.1 General 5.5.2 The Carrington event 5.5.3 The AD774-775 event <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 5.6 Defining an extreme space weather environment 5.6.1 General <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5.6.2 ESW level 1: February 1956 GLE Figure 3 \u2013 Proton spectra for galactic cosmic ray background (solid red line) and February 1956 GLE (dashed blue line), and ratio between the two (green dotted line) <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Figure 4 \u2013 Integral neutron spectra at ground level (top) and 12 km altitude (bottom) for GCR and GLE conditions at two cut-off rigidities <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 5.6.3 ESW level 2: An event much larger than the February 1956 GLE, approximately representative of a 1-in-1 000-year event 5.7 Forecasting the occurrence of an extreme space weather event <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5.8 Acceleration factors in ground testing 5.9 Real-time atmospheric radiation monitoring and aircraft in-flight radiation monitoring <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 6 Considerations of ESW impact on infrastructure related to flight operations <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Process management for avionics. Atmospheric radiation effects – Extreme space weather. Potential impact on the avionics environment and electronics<\/b><\/p>\n |