= SPENVIS =

 . spenvis.oma.be radiation and atmosphere models (no, I don't know what O M A stands for, if anything.  There main web page refers to "Space Pole", and I don't know what that means, either.  

 . [[ https://www.spenvis.oma.be/help/background/traprad/traprad.html | SPENVIS tutorial on space radiation ]]
  . ring current drift: ions eastward, electrons westward
 

 .  [[ https://ntrs.nasa.gov/search.jsp?R=19770012039 | AP-8 Trapped Proton Environment for Solar Maximum and Solar Minimum ]] (19770012039.pdf) pg 7, paragraph 4:  "The AP8MAX equatorial radial profiles differ from AP8MIN only for L below 1.3 Earth radii (1900 km altitude) and, therefore, are not shown."  Plots from page 87 to 93:

|| [[  attachment:AP8MIN01.png | {{  attachment:AP8MIN01.png | | width=400 }} ]] || [[   attachment:AP8MIN1.png | {{   attachment:AP8MIN1.png | | width=400 }} ]] ||
|| [[  attachment:AP8MIN10.png | {{  attachment:AP8MIN10.png | | width=400 }} ]] || [[  attachment:AP8MIN50.png | {{  attachment:AP8MIN50.png | | width=400 }} ]] ||
|| [[ attachment:AP8MIN100.png | {{ attachment:AP8MIN100.png | | width=400 }} ]] || [[ attachment:AP8MIN400.png | {{ attachment:AP8MIN400.png | | width=400 }} ]] ||
||<-2> [[ attachment:AP8MINL.png | {{ attachment:AP8MINL.png | | width=850 }} ]] ||