1. Siam Tsunami Propagation Simulator Model (SiTProS)
The Certificate Program in Tsunami Science and Preparedness.
Siam Tsunami Propagation Simulator Model (SiTProS)
Dr.Wattana Kanbua
Marine Meteorological Center
Meteorological Observation and Warning Bureau Thai Meteorological Department
Mr.Somporn Chuai-Aree
Department of Mathematics and Computer Science, Faculty of Science and Technology, Prince of Songkla University, Pattani Campus.
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

2. The SiTProS Model and Numerical Simulation
The Certificate Program in Tsunami Science and Preparedness.
The SiTProS Model and Numerical Simulation
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

3. SiTProS Model – shallow water equation
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model – shallow water equation
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

4. SiTProS Model – 2D grid system
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model – 2D grid system
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

5. SiTProS Model – approximation (model 1)
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model – approximation (model 1)
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

6. SiTProS Model - Calculation
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model - Calculation
From where u(n+1) may be calculated as:   
Substitute all terms in the wave equation, finally you get the equation 4 when C and h are given below of this page. This equation is for fully wave equation, but the calculation is slower than the previous model of our tsunami generation. The first program, we ignored the term -4U(n,i,j) and +2U(n,i,j)
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

7. SiTProS Model - Calculation
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model - Calculation
Initial Condition   
values at n=1 as the initial conditions R
What are the values at n=0?
We apply a zero-gradient initial condition
, this means
substitute this into (4), then we get

8. SiTProS Model - Calculation
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model - Calculation
Boundary Condition   
4 boundaries are free (open).
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

9. Algorithm for Wave Propagation
The Certificate Program in Tsunami Science and Preparedness.
Algorithm for Wave Propagation
how does this algorithm work? (to save memory)
can be assigned to
for next iteration before calculation.
U[new] U[old] U[new]
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

10. SiTProS Model – approximation (model 2)
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model – approximation (model 2)
(minute)

11. SiTProS Model – computing grid
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model – computing grid
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

12. SiTProS Model – fault parameters
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model – fault parameters
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

13. SiTProS Model - Algorithm
The Certificate Program in Tsunami Science and Preparedness.
SiTProS Model - Algorithm
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

14. Results – tsunami propagation
The Certificate Program in Tsunami Science and Preparedness.
Results – tsunami propagation

15. Results – tsunami propagation
The Certificate Program in Tsunami Science and Preparedness.
Results – tsunami propagation
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.

16. The Certificate Program in Tsunami Science and Preparedness.
Conclusion
This paper has introduced the tsunami propagation simulator model which calculated trends to check the model could predict the tsunami arrival times. We have already compared the result of the model with observation time in the case of the December 26, In general, it was found that the model can predict quite well. The model is already implemented for Tsunami Warning Systems to provide a first estimate of tsunami arrival time. The SiTProS model has therefore been developed by ourselves, using a fast algorithm for a quick estimate of the tsunami front propagation. We have applied this model to the 26th December event. It shows a very satisfied prediction of the time of the main events. The trial version of software is available at
Held at the University of Washington in Seattle, Washington (USA) , During July 21- August 2, 2007.