40 m sediment. Cp/Cs=1600/400. Ap/As=0.15/0.4
N P 
3
0 1500 0 0 0 1 0
0 1600 400 0.15 0.4 1.8 0
40 1800 600 0.00 0.00 2 0

50 50 1 1
0.01 89.99 181 0
0 90 20 30
0 1 12 0.2