CS499 Senior research project Weather forecast simulation using Nonlinear dynamics Shin. Jeongkyu, Dept. of Physics, POSTECH Leading Prof. Kim. Daejin

2 Progress Make a controlled environment that have some fluctuations like weather in nature (~4.13) Do an experiment about some situations.(~4.20) Make new simple equations for explaining.(~4.30) Write a program that can simulate those situations using new theory and equations.(~5.13) Make a tutor program and manual.(~5.30) Weather forecast simulation using Nonlinear dynamics

3 Design Note(1) Program structure  Calculation part  Printing part  User Interface part Weather forecast simulation using Nonlinear dynamics Calculation part User Interface part Printing part ParametersResult data (Figure, raw data, ETC…)

4 Design Note(2) Calculation Part  Core of this program  Equator  Based on the Stefan-Boltzmann Law  Receive some parameters from UI. Basically determined parameters : (a, P, T)  Alpha for the S-B Law  Period for heating water  Time term between each days  Test program using MATLAB, result using C- Based for performance Weather forecast simulation using Nonlinear dynamics

5 Design Note(3) Printing part  Receiving raw data from calculating part Basically determined parameters : Dim.(unassigned)  2-Dimensional matrix data for drawing  1-Dimensional matrix data for Bifurcation diagram  Make a figure using that data  Attaching in the UI Fig.2. Example of results Weather forecast simulation using Nonlinear dynamics

6 Design Note(4) User Interface part  Receive data from user  Pass them to the calculation part  Will develop lastly Weather forecast simulation using Nonlinear dynamics Fig.3. Example of UI (Naturalica, )

7 Reference Steven H. Strogatz. Nonlinear dynamics and chaos, 1 st ed. Westbook press, 2000, Part III.(chaos) Weather forecast simulation using Nonlinear dynamics