I tried on web to get the derivation of tsunami speed equation, which is; tsunami speed = sqrt (g*D). g is gravitational cost. and D is oceon depth.

Let me know if anybody has derivation of this equation. I just want to do some comparison.

Thanks in advance.

Shallow water equations

Thanks for the keyword Jon. I got the desired.

sir, let me know the TDMA method which is being used in solving the boundry value problems.