11 1 MEAN SEA-SURFACE (MSS) INTERPOLATION FLAG 22 2 OCEAN TIDE SOLUTION 1 INTERPOLATION FLAG (0 = 4 POINTS OVER OCEAN, 1 = LESS THAN 4 POINTS) 33 3 OCEAN TIDE SOLUTION 2 INTERPOLATION FLAG (0 = 4 POINTS OVER OCEAN, 1 = LESS THAN 4 POINTS) 44 4 METEOROLOGICAL DATA INTERPOLATION FLAG (0 = 4 POINTS OVER OCEAN, 1 = LESS THAN 4 POINTS) 5