IDL Routines and parameter descriptions

Readfile: routine for reading compressed data from file
  Nrun: Run number
  Var: variable to read (e.g., ‘ex’,’by’)
  Idump: Dump number (e.g., to run file ‘ex001.out’, var=’ex’ and idump=1)
  Icheck: set to write diagnostics to show routine is reading correctly

Readlimfile: read file containing limits of data file
  Nrun, var, idump: as in Readfile

Readgrid: read grid parameters and set up grid
  Nrun: Run number

Alfspeedslice: routine to plot Alfvén speed in 2d slice
  Nrun: Run number
  Ixyz: ‘x’ to plot at given L-shell, ‘y’ to plot given longitude
  Val0: value of L-shell or longitude to plot
  Llat, rmx,rmn: not used
  Pltlab: optional string to preface top label (e.g., to put ‘(a)’ in front of label)
  Io: set to plot Io’s orbit

Orbitio: routine to plot Io’s orbit (called from alfspeedslice)
  Psideg: inclination of Io’s orbit
  Col: Color to use to plot orbit

Denslice: routine to plot density in 2d slice
  Nrun, ixyz, val0: as in alfspeedslice
  Vmin: minimum value for colorbar (set to minimum of data is keyword not set)
  Vmax: maximum value for colorbar (set to maimum of data is keyword not set)
  Pltlab, io: as in alfspeedslice

Fieldslice: routine to plot variable values in 2d slice
  Nrun: run number
  Var: variable name (as in readfile)
  Ixyz: which slice to make: ‘I’ for constant L-shell, ‘j’ for constant latitude, ‘k’ for constant location along field line, ‘l’for constant L-shell.  I, j, and k refer to cell number, l is L-shell value 
  Ival: Value of location to plot
  I0: first dump to plot
  I1: last dump to plot (= i0 if only plot one slice, otherwise make simple animation)
  Xmin, xmax: minimum and maximum horizontal location to plot (in Rj or degrees longitude), otherwise fit whole region
  Ymin,ymax: like xmin and xmax but for vertical direction
  Vmax: maximum absolute value of variable for color bar
  Zlat: used when ixyz=’k’.  If set, top label lists altitude in km, else lists latitude

Poyntslice: routine to plot 2d slice of parallel Poynting flux scaled to ionosphere
  Nrun: run number
  Ixyz: takes on values of ‘x’,’y’ or ‘z’, for slice at constant L-shell, longitude and latitude, respectively.
  Ival: value of L-shell, longitude or latitude to plot
  T0, t1: first and last slice to plot (like i0 and i1 in fieldslice)
  Xmin,xmax,ymin,ymax,vmax: as in fieldslice
  Comp: set to calculate ex*by-ey*bx, else only ex*by
  Eps: set to produce .eps file for hard copy

Phiparslice: routine to calculate and plot parallel potential drop
  Nrun: run number
  Ihemis: >0 for northern hemisphere, <0 for southern
  T0, t1: as in poyntslice
  Xmin,xmax,ymin,ymax,vmax: as in fieldslice
  Comp: not used

Jphihist: routine to plot j vs phi along one field line, as in Knight relation
  Nrun: run number
  L0: L-shell
  Long0: longitude
  Ihemis: >0 for north, <0 for south
  Kion: minimum index for making plot (to drop off boundary cells)