Latitude:	40.00N - 41.00N		Longitude:	140.00E - 141.00E
Month:	April

Depth Mean Max. Min. Number of Sample Standard Deviation 0 8.63 12.10 3.90 37 1.66 10 8.25 10.74 3.75 37 1.64 20 8.24 10.73 3.60 41 1.59 30 8.15 10.71 3.49 39 1.59 50 8.74 10.48 6.46 26 1.04 75 8.67 10.54 6.41 26 0.99 100 8.25 10.02 4.87 16 1.32 125 7.75 9.83 4.51 3 2.85 150 7.34 9.75 3.48 3 3.38 200 6.50 9.66 1.86 3 4.10 250 4.25 5.57 1.87 3 2.06 300 2.50 2.94 2.06 3 0.44 400 1.52 2.15 0.88 2 0.90