parameter (lons=144,lats=72,kvar=5)
        real*4 data(lons,lats,kvar)

        open(8,file='data.dat',
     &       form='unformatted',access='sequential')

c       *****************************
        do 666 imon=1,309

        do 140 ivar=1,kvar
        read(8) ((data(i,j,ivar),i=1,lons),j=1,lats)
 140    continue 

c       ivar=   1: Precipitation analysis based on raingauge data only (CAMS)
c               2: number of CAMS gauges
c               3: Precipitation analysis based on OPI estimates only
c               4: The blended analysis CAMS_OPI monthly total precip. analysis
c               5: CAMS_OPI monthly anomaly (1979-1995 base period)

c       ***************************************************
 666    continue
        stop
        end

arry orientation:


     0     2.5E   5.0E        2.5W     0
     |      |      |           |       |
     -----------------------------------  South Pole
     |      |      |           |       |
     |(1,1) | (2,1)|   ....    |(144,1)|.............88.75S
     |      |      |           |       |
     -----------------------------------  87.5S
     |      |      |           |       |
     |(1,2) | (2,2)|   ....    |(144,2)|.............86.25S
     |      |      |           |       |
     -----------------------------------  85.0S
                        .
                        .
                        .
     -----------------------------------  87.5N
     |      |      |           |        |
     |(1,72)|(2,72)|   ....    |(144,72)|............88.75N
     |      |      |           |        |
     -----------------------------------   Nort Pole
         .      .                  .
         .      .                  .
         .      .                  .
       1.25E  3.75E               1.25W