HadISST File Format

HadISST - SST file format
HadISST - ICE file format

HadISST SST File Format

Data are stored in ASCII.

All values are integers. Temperature values are in Degree Celsius.

Monthly mean SST are stored as counts * 100 (in Degree Celsius)
IF SST ice covered, gridboxes are flagged as -1000
missing data are set to -32768.

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

Data Array (360x180).
Item (1,1) stores the value for the 1-deg-area centred at 179.5W and 89.5N.
Item (360,180) stores the value for the 1-deg-area centred at 179.5E and 89.5S.


          -----------
         |     |     |
         | MON | YR  |
         |_____|_____|__________________________________
     90N |(1,1)                                         |
         |                                              |
         |                                              |
         |                                              |
         |                                              |
         |(1,90)                                        |
     Equ |                                              |
         |(1,91)                                        |
         |                                              |
         |                                              |
         |                                              |
         |                                              |
     90S |(1,180)______________________________(360,180)|
          180W                 0                    180E

HadISST ICE File Format

Data are stored in ASCII.

All values are integers.

Ice concentrations are stored as as percentage of gridbox covered with ice.
missing data (here land gridboxes) are set to '-32768'

The month and year are stored at the start of each month. These data are monthly averages.

Data Array (360x180)
Item (1,1) stores the value for the 1-deg-area centred at 179.5W and 89.5N
Item (360,180) stores the value for the 1-deg-area centred at 179.5E and 89.5S

          ----- -----
         |     |     |
         | MON | YR  |
         |_____|_____|__________________________________
     90N |(1,1)                                         |
         |                                              |
         |                                              |
         |                                              |
         |                                              |
         |(1,90)                                        |
     Equ |                                              |
         |(1,91)                                        |
         |                                              |
         |                                              |
         |                                              |
         |                                              |
     90S |(1,180)______________________________(360,180)|
          180W                 0                    180E