Latitude:	28.00N - 29.00N		Longitude:	136.00E - 137.00E
Month:	April

Depth Mean Max. Min. Number of Sample Standard Deviation 0 20.20 21.20 19.40 14 0.57 10 20.16 21.43 19.07 13 0.69 20 20.10 21.41 19.04 13 0.69 30 20.00 21.38 18.60 13 0.76 50 19.75 21.33 18.00 13 0.80 75 19.35 21.10 17.80 13 0.78 100 19.02 20.32 17.50 12 0.72 125 18.71 19.77 17.30 12 0.66 150 18.53 19.60 17.10 12 0.68 200 18.04 19.40 16.70 12 0.73 250 17.36 18.60 16.20 6 0.86 300 16.78 18.20 15.80 6 0.88 400 14.53 14.70 14.35 2 0.25