1. Semester Work B94209025 馮培寧 Kirsten Feng

2. Paper Review

3. North Atlantic Oscillation North Atlantic Oscillation Tropical Pacific Climate Tropical Pacific Climate Abrupt increase of winter rainfalls over the northern Taiwan and the weakening of the East Asian winter monsoon in the early 1980s Abrupt increase of winter rainfalls over the northern Taiwan and the weakening of the East Asian winter monsoon in the early 1980s Influence of the Antarctic Circumpolar Wave on El Niño and its multidecadal changes from 1950 to 2001 (not yet finished…) Influence of the Antarctic Circumpolar Wave on El Niño and its multidecadal changes from 1950 to 2001 (not yet finished…) Still another 5 … Still another 5 …

4. NAO and Tropical Pacific Climate MPI-OM and KCM model MPI-OM and KCM model Both of them are without flux adjustment Both of them are without flux adjustment KCM solutions are compared with the real observation data— KCM solutions are compared with the real observation data— Some area are higher but some are weaker Some area are higher but some are weaker There are still rooms to improve There are still rooms to improve

5. Abrupt Increase Rainfalls In the early 1980s, the East Asian winter monsoon weakened but the rainfalls in northern Taiwan has abrupt increase in that epoch. In the early 1980s, the East Asian winter monsoon weakened but the rainfalls in northern Taiwan has abrupt increase in that epoch. The phenomenon happened only in northern Taiwan and southern China. The phenomenon happened only in northern Taiwan and southern China. In that epoch, winter precipitations in Japanese coast and Philippines also decreased with the weak monsoon. In that epoch, winter precipitations in Japanese coast and Philippines also decreased with the weak monsoon.

6. Abrupt Increase Rainfalls This anomaly data was divided into two parts for frontal effect or not. This anomaly data was divided into two parts for frontal effect or not. The northward flow made the frontal rain band complete and strong, which caused the abrupt rainfalls in the early 1980s. The northward flow made the frontal rain band complete and strong, which caused the abrupt rainfalls in the early 1980s. If we want to study the abnormal strong current further, PDO may be a possible way. If we want to study the abnormal strong current further, PDO may be a possible way.

7. A conceptual model explain the rainfall brought by the eastward moving fronts produce more rainfalls to the southern China and plains over the northern Taiwan. A conceptual model explain the rainfall brought by the eastward moving fronts produce more rainfalls to the southern China and plains over the northern Taiwan.

8. It’s considered that NAO is related to the variance of precipitations in northern Taiwan. It’s considered that NAO is related to the variance of precipitations in northern Taiwan.

9. The latter studies The latter studies

10. Some Abbreviations Antarctic Circumpolar Wave = ACW Antarctic Circumpolar Wave = ACW sea level pressure = SLP sea level pressure = SLP sea ice extent = SIE sea ice extent = SIE global ENSO wave = GEW global ENSO wave = GEW Antarctic circumpolar current = ACC Antarctic circumpolar current = ACC

11. Global ENSO Wave The global traveling wave of ENSO propagates slowly eastward around the tropical global ocean as a coupled SST/SLP wave, composed of global zonal wave numbers 1 and2, with phase speeds ranging from 45 to 90 of longitude per year, taking 4 to 8 years to circle the globe. The global traveling wave of ENSO propagates slowly eastward around the tropical global ocean as a coupled SST/SLP wave, composed of global zonal wave numbers 1 and2, with phase speeds ranging from 45 to 90 of longitude per year, taking 4 to 8 years to circle the globe.

12. Antarctic Circumpolar Wave The ACW in the Indian sector of the southern ocean spawns a coupled SST/SLP wave that has been observed propagating equatorward into the tropical Indian ocean. The ACW in the Indian sector of the southern ocean spawns a coupled SST/SLP wave that has been observed propagating equatorward into the tropical Indian ocean. The latter oceanic teleconnection provides a positive feedback to the GEW in the Warm Pool north of Australia, producing a resonant interaction between the GEW and ACW that reinforces the amplitudes of both via a global feedback loop in the southern hemisphere that takes about 4 years to complete. The latter oceanic teleconnection provides a positive feedback to the GEW in the Warm Pool north of Australia, producing a resonant interaction between the GEW and ACW that reinforces the amplitudes of both via a global feedback loop in the southern hemisphere that takes about 4 years to complete.

13. Antarctic Circumpolar Wave Ocean and atmospheric covariance, feedbacks. Ocean and atmospheric covariance, feedbacks. The global waves and global standing mode The global waves and global standing mode By using the model we want to find if the pattern of global warming persists into the 21th century, then the ACW will continue to influence El Nino through the South Indian Ocean. By using the model we want to find if the pattern of global warming persists into the 21th century, then the ACW will continue to influence El Nino through the South Indian Ocean.

14. Plot Tools and Syntaxes Special Thanks To 泉源 : )

15. Some “m_tools” M_map M_map The way we set projection method The way we set projection method M_pcolor M_pcolor The color bar and shading The color bar and shading M_contourf M_contourf To show the data and the value To show the data and the value M_contour M_contour Only the isobars Only the isobars

16. Some “m_tools” M_coast M_coast To set up the terrains To set up the terrains Vector wind direction Vector wind direction M_quiver M_quiver M_vec M_vec Each syntax should be pose in the sequence for the correct terrain and value Each syntax should be pose in the sequence for the correct terrain and value

17. Seawater Tool Box Pressure Pressure Height Height Sw_gpan (S,T,P) Sw_gpan (S,T,P) So we have to set up pressure before this So we have to set up pressure before this

18. Prospect

19. The Future Works > > Friday > Friday >

20. Different LES application

21. Structural and Concentrated Grid

22. LES resolution by FLUENT It has the detailed resolution. It has the detailed resolution.

23. Thanks For Your Attention! Bon Vacance!