Documentation on Superegional PIOMAS Model Output Regridded to Northern Hemispher 25km EASE Grid

General Documentation on model, variable names etc: 
 http://psc.apl.washington.edu/IDAO/data_piomas.html

Output Files:
<Varname>.H<YYYY>.gz

Varname:
ICEVEL : Ice Velocity (u,v)
HEFF   : Ice Thickness 
OSALI1 : Ocean Surface Salinity
U02    : Ocean Velocity (u,v) at 15 m depth

YYYY: 1978-2004

Format:
Files are written as unformmated binary files, as 4-byte floatint point numbers and compressed
uing gzip. Files are written on a Intel System  (Little Endian byte order). On Big Endian 
Systems (Sun,HP, Mac, SGI) byte swapping will be necessary.

Scalar Varariables: (HEFF, OSAL1)
; Idl code fragment to read 
; Missing values are set to -99999.

  nx=721
  ny=721	
  heff=fltarr(721,721,12) ; subscripts [x,y,month]
                          ; IDL has fortran style memory squence, first subscript contiguous 
                          ; memory

  infile='HEFF.H2004.e25.dat.gz'
  openr,lun,infile,/get_lun,/compress
  readu,lun,data	
  free_lun,lun

; 
  infile=indir+'ICEVEL.H2004.e25.dat.gz'
  openr,lun,infile,/get_lun,/compress ; IDL lets you open gzipped files, if functionality
                                      ; not available, uncompress with gunzip.
  vdata=fltarr(721,721,2,12)
  readu,lun,vdata
  free_lun,lun
  ugrid=vdata[*,*,0,*]
  vgrid=vdata[*,*,1,*]