10 0 CALM (GLASSY) HEIGHT 0 M 21 1 CALM (RIPPLED) HEIGHT 0 - 0.1 M 32 2 SMOOTH (WAVELETS) HEIGHT 0.1 - 0.5 M 43 3 SLIGHT HEIGHT 0.5 - 1.5 M 54 4 MODERATE HEIGHT 1.25 - 2.5 M 65 5 ROUGH HEIGHT 2.5 - 4 M 76 6 VERY ROUGH HEIGHT 4 - 6 M 87 7 HIGH HEIGHT 6 - 9 M 98 8 VERY HIGH HEIGHT 9 -14 M 109 9 PHENOMANAL HEIGHT OVER 14 M 1115 15 MISSING VALUE 12