0 0 RESERVED
1 1 BARE SOIL
2 2 BARE ROCK
3 3 LAND GRASS COVER
4 4 WATER (LAKE, SEA)
5 5 FLOOD WATER UNDERNEATH
6 6 SNOW
7 7 ICE
8 8 RUNWAY OR ROAD
9 9 SHIP OR PLATFORM DECK IN STEEL
10 10 SHIP OR PLATFORM DECK IN WOOD
11 11 SHIP OR PLATFORM DECK PARTLY COVERED WITH RUBBER MAT
31 31 MISSING VALUE
