All data are 6-figure integers.
Field headers are "Day, Month, Year" for daily data.
Field headers are "Month, Year" for monthly data.
Both height and thickness are in metres *100
The first row is for 90 deg N and the last for 15 deg N.
------------------ | | | | | DAY | MON | YR | |_____|_____|_____|_____________________________ 90N |(1,1) | | | | | | | | | 15N |(1,16)_________________________________(36,16)| 180W 0 180E