Data are stored in ASCII

Temperatures are stored as degrees C
Land squares and missing data are set to -99.99

The month and year are stored at the start of each month.

Data Array (72x28)
Item ( 1,  1) stores the value for the 5-deg-area centred at 177.5W and 67.5N
Item (72, 28) stores the value for the 5-deg-area centred at 177.5E and 67.5S

          ----- ----- 
         |     |     |
         | MON | YR  |
         |_____|_____|__________________________________
     70N |(1,1)                                         |
         |                                              |
         |                                              |
         |                                              |
         |                                              |
         |(1,18)                                        |
     Equ |                                              |
         |(1,19)                                        |
         |                                              |
         |                                              |
         |                                              |
         |                                              |
     70S |(1,28)_________________________________(72,28)|
          180W                 0                    180E



Monthly version of the Hadley Centre climatology of the diurnal temperature range 
of the sea surface based on the ICOADS

Data generated by MDS2.2 from in situ observations held in the International 
Comprehensive Ocean Atmosphere Data Set, ICOADS (see http://www.cdc.noaa.gov/coads/).

Reference: Kennedy J.J., Brohan P. and S.F.B.Tett, 2007: A global climatology of the 
diurnal variations in sea-surface temperature and implications for MSU temperature 
trends. Geophys. Res. Lett., Vol. 34, No. 5, L05712 doi:10.1029/2006GL028920

Data restrictions: for academic research use only. Data are Crown copyright see 
(http://www.opsi.gov.uk/advice/crown-copyright/copyright-guidance/index.htm)

Updates and supplementary information will be available from http://www.hadobs.org