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Variable Coefficient KdV Equation and the Analytical Diagnoses of a Dipole Blocking Life Cycle |
TANG Xiao-Yan1,2;HUANG Fei1,2,3;LOU Sen-Yue1,2 |
1Department of Physics, Shanghai Jiao Tong University, Shanghai 200030
2Center of Nonlinear Science, Ningbo University, Ningbo 315211
3Department of Marine Meteorology, Ocean University of China, Qingdao 266003 |
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Cite this article: |
TANG Xiao-Yan, HUANG Fei, LOU Sen-Yue 2006 Chin. Phys. Lett. 23 887-890 |
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Abstract A variable coefficient Korteweg de Vries (VCKdV) system is derived by considering the time-dependent basic flow and boundary conditions from the well-known Euler equation with an earth rotation term. The analytical solution obtained from the VCKdV equation can be successfully used to explain fruitful phenomena in fluid and other physical fields, for instance, the atmospheric blocking phenomena. In particular, a diploe blocking case happened during 9 April 1973 to 18 April 1973 read out from the National Center for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis data is well described by the analytical solution.
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Keywords:
47.35.+i
47.32.-y
92.60.Dj
02.30.Ik
02.30.Jr
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Published: 01 April 2006
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