c    NOAA Optimum Interpolation 1/4 Degree Daily: AVHRR+AMSR 
c    Sea Surface Temperature Analysis
c    http://www.ncdc.noaa.gov/oa/climate/research/sst/oi-daily.php


c    1) description of the data
c        sst(i,j):  daily SST (C degree)
c    2) coverage:
c       longitude: Uniform grid from 0.125 to 359.875 by 0.25
c       Latitude:  Uniform grid from -89.875 to 89.875 by 0.25 
c    3) resolution:
c        0.25 deg lat x 0.25 deg lon
c    4) missing values: -999.0
c    5) example program: read one day data 

      parameter (lons=1440,lats=720)
      real*4  sst(lons,lats)

      open(21,file='2006/sst.avhrr-amsr.20061231.dat',
     &  form='unformatted',access='sequential')

      read(21) ((sst(i,j),i=1,lons),j=1,lats)

      write(6,*) sst(720,200)

       stop
       end

c       Contact:
c       Yongsheng Zhang: yshzhang@hawaii.edu
c       September 25, 2007