Table AIV-1.—WMO CODE 0700 WMO CODE 0700 Direction or brearing in one figure. Reported as towards: D_a, D_e, D₁, D_S Reported  as  from: D, D_H, D_M, D_L, D_K, D_p, Code 7 Code 8 Code 1 Northwest North Northeast Code 6 Code 0 Code 2 West Stationary or overhead East Code 5 Code 4 Code 3 Southwest south Southeast Code 9 - All directions, confused, variable, or unknown. Code / - Not reported. Table AIV-2.—WMO CODE 0975 WMO CODE 0975 E' - State of the ground with snow or measurable ice cover. Code PREDOMINENT  GROUND  COVER 0 Ground predominatly covered by ice. 1 Compact or wet snow - 0.1 to 0.4 ground covered. 2 Compact or wet snow - 0.5 to 0.9 ground covered. 3 Compact or wet snow - 1.0 coverage - EVEN layer. 4 Compact or wet snow - 1.0 coverage - UNEVEN layer. 5 Loose dry snow - 0.1 to 0.4 ground covered. 6 Loose dry snow - 0.5 to 0.9 ground covered. 7 Loose dry snow - complete coverage - EVEN layer. 8 Loose dry snow - complete coverage - UNEVEN layer. 9 Snow - complete coverage - DEEP DRIFTS. Table AIV-3.—WMO CODE 4451 WMO CODE 4451 V_S, - Ship’s average speed made good during the past 3 hours. Code Speed 0 0 kt 1 l - 5 kt 2 6 - 10 kt 3 11 - 15 kt 4 16 - 20 kt 5 21 - 25 kt 6 26 - 30 kt 7 31 - 35 kt 8 36 - 40 kt 9 over 40 kts / Not reported AIV-11