AF-Geospace User's Manual Version 1.4 and Version 1.4P

This is a AIR FORCE RESEARCH LAB HANSCOM AFB MA SPACE VEHICLES DIRECTORATE report procured by the Pentagon and made available for public release. It has been reproduced in the best form available to the Pentagon. It is not spiral-bound, but rather assembled with Velobinding in a soft, white linen cover. The Storming Media report number is A650983. The abstract provided by the Pentagon follows: The Air Force Research Laboratory master program AF-GEOSpace (Versions 1.4 and 1.4P) provides a user-friendly graphical interface to a variety of scientific models constructed to facilitate the assessment of natural hazards in the near-Earth space environment. Environmental effects range from navigation and communication link outages caused by ionospheric scintillation to satellite system failures caused by intense magnetospheric particle fluxes. Included are models 0 low-Earth orbit radiation dosages, radiation belt electron and proton flux derived from CRRES satellite data, auroral precipitation based on DMSP data, the ionosphere and its scintillation effects, cosmic rays and the solar proton environment interplanetary shock propagation, and satellite Single Event Effects probabilities.