Data are stored in ASCII Ice concentrations are stored as percentage of gridbox covered with ice * 100 (0-10000) missing data are set to '-32768' The day, month and year are stored at the start of each month. The day simply tells you on which day the month starts. 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 ----- ----- ----- | | | | | DAY | MON | YR | |_____|_____|_____|____________________________ 90N |(1,1) | | | | | | | | | |(1,90) | Equ | | |(1,91) | | | | | | | | | 90S |(1,180)______________________________(360,180)| 180W 0 180E