The Air Force Statistical Auroral Models (AFSAM): Functional Representations
Abstract
We document here the Air Force Statistical Auroral Models (AFSAM), a set of empirical models for average auroral quantities. The quantities include electron and ion integral energy flux, number flux and average energy and the Pedersen and Hall conductivities. These quantities were computed by first computing average electron and ion spectra measured from the DMSP satellites, then converting these average spectra into the several quantities as a function of corrected geomagnetic latitude and magnetic local time. The two-dimensional maps were then fit to functional fdrms to reduce noise and provide continuity. The models are available as Fortran subroutines giving continuous values of each of the properties at either seven levels of Kp or 30 combinations of solar wind speed with interplanetary magnetic field. This report describes the process and results of fitting of the model and gives references to the calculation of the properties themselves.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 28, 1999
- Accession Number
- ADA391630
Entities
People
- William J. Mcneil