| Title | Solar Radiation Alert System: Final Report |
|---|---|
| Record ID | 40026 |
| Personal Name Creator |
Copeland, Kyle; Sauer, Herbert H.; Friedberg, Wallace |
| Corporate Creator | United States. Department of Transportation. Federal Aviation Administration. Civil Aerospace Medical Institute; National Geophysical Data Center |
| Corporate Contributor |
United States. Office of Aerospace Medicine |
| Publisher | United States. Department of Transportation. Federal Aviation Administration |
| Publication Date | 20090300 |
| Language | English |
| Abstract | The Solar Radiation Alert (SRA) system continuously evaluates measurements of high-energy protons made by instruments on GOES satellites. If the measurements indicate a substantial elevation of effective dose rates at aircraft flight altitudes, the Civil Aerospace Medical Institute issues an SRA via the National Oceanic and Atmospheric Administration Weather Wire Service. This report describes a revised SRA system. SRA issuecriteria remain the same but significant improvements have been made in the calculations. The solar proton fluence to effective dose conversion coefficients have been recalculated using 2007 recommendations of the International Commission on Radiological Protection and the latest release of the Monte Carlo transport code, MCNPX 2.6.0. The shape of the 605 MeV spectral shape have been improved by the addition of correction factors for the differential interpretation of the >700 MeV integral flux channel. Estimates of galactic cosmic radiation background count rates in the GOES data are now median rather than mean values. Estimated solar cosmic radiation dose rates are about 10 times higher than those made using the previous version of the SRA system. |
| Rosap ID | dot:21511 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/21511 |
| TRT Terms | Solar radiation; Crash avoidance systems; Protons; Measurement; Weather; Electromagnetic spectrum; Cosmic rays |
| General Subjects | Solar radiation; Monte Carlo particle transport code; solar protons; solar particles; space weather; solar flare; coronal mass ejection |
| Geographical Coverage |
United States |
| Report Number | DOT/FAA/AM-09/6 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/40000/40000/40026/200906.pdf |
| Format | |
| Database | NTL Digital Repository |