read.me   LEVEL 3E: "Expanded" level 3
	  A detailed high resolution TOMS map data set.

1)  Grid - 1 x 1 degree
           longitude index ranges from 1 to 360 
           (where 1 is Int'l Date Line,and east is positive direction)
           latitude index ranges from 1 to 180 (1 = south pole, 180 = N)
2)  Values - time(360,180) in gmt seconds 4byte integer
	   - var(360,180,18) 2byte integer
	***NOTE:  VAR and TIME WAS MULTIPLIED BY 50***
	***NOTE:  FILL VALUE IS -5000 (before % by 50) ***
		1.  ozone
		2.  reflectivity
		3.  solar zenith angle
		4.  satellite zenith angle
		5.  phi angle
		6.  latitude
		7.  longitude
		8.  terrain pressure
		9.  cloud pressure
		10.  land/sea indicator
		11.  soi
		12. residue 340 (N7,M3), 331 (EP,AD)
		13. n value 312 (N7,M3), 308 (EP,AD)
		14. n value 317 (N7,M3), 312 (EP,AD)
		15. n value 331 (N7,M3), 317 (EP,AD)
		16. n value 340 (N7,M3), 322 (EP,AD)
		17. n value 360 (N7,M3), 331 (EP,AD)
		18. n value 380 (N7,M3), 360 (EP,AD)
3)  Notes on what went into the data:
  Selection Criteria  
           if ( o3bst(isampl).gt.0. .and. o3bst(isampl).lt.655. .and.
     1          errflg(isampl).ne.5 .and. errflg(isampl).ne.15 ) then
  Minimize Optical Path defined as :
               o3b = o3bst(isampl) 
     1          + (resn317(isampl)*d331-resn331(isampl)*d317) 
     2          / (sens317(isampl)*d331-sens331(isampl)*d317)
               path = 1./cos(sza(isampl)*3.14159/180.) +
     1          1./cos(view(isampl)*3.14159/180.)
               path = o3b * path / 1000.
4)  Naming and Location 
       The daily files are called: zYYDDD.SSg (where SS=n7,m3,ad,ep)
    NIMBUS-7
       Location of 78305-93126 files:/misc/isdat2/lvl3e/nimbus7
    ADEOS
       Location of 96255-97180 files:/misc/isdat2/lvl3e/adeos/ 
    EARTH PROBE
       Location of 96198-..... files:/misc/isdat2/lvl3e/earthp/ 
5)  Helpful code located in this directory
       Fortran routine reads in variables:  read.f
       Idl routine reads in variables:  read.pro
       Idl routine to map a variable:  map3e.pro
6)  Sizes:  1 file per day = 2.6 Mbyte
7)  Notes:
	10/97  There was an error in the indexing - now corrected.
	11/97  Updating the selection criteria - overwrote old files.
	03/98  level 3e files copied to one directory