Programs for calculationg wave-activity flux derived by Takaya and Nakamura (2001, JAS: TN01) or by Plumb (1985, JAS).
Calculating horizontal wave-activity flux for monthly data derived by TN01 on GrADS applied to monthly-mean fields (*) (code)
Calculating horizontal wave-activity flux data derived by Plumb (1985, JAS) on GrADS applied to monthly-mean fields (**) (code)
Calculating horizontal wave-activity flux data derived by Plumb (1985, JAS) on GrADS applied to climatological monthly fields (**) (code)
All panels are produced by above GrADS scripts.
(a) Contours are for 250-hPa monthly-mean anomalous QG stream function in November 2014, while arrows are for wave activity flux defined by Takaya and Nakamura (2001). "anomaly" is defined by deviations of November 2014 from climatology (November mean for 1990-2010).
(b) Coutnros are for deviation of 250-hPa monthly-mean QG stream function in November 2014 from its zonal mean, while arrows are for wave activity flux defined by Plumb (1985).
(c) Coutnros are for deviation of 250-hPa monthly-mean QG stream function of November climatology (1990-2010) from its zonal mean, while arrows are for wave activity flux defined by Plumb (1985).
Calculating horizontal wave-activity flux derived by Plumb (1985, JAS) on GrADS appied to daily-mean fields (***) (code)
A Fortran90 code for calculating horizontal wave-activity flux defined by TN01 of one level fields (code)
(*) Note that u and v are assumed to be geostrophic winds.
(**) Erros are corrected on 14th November 2012
A Fortran90 code for calculating 3-D wave-activity flux defined by TN01 of multi-level fields (code)
(*) Note that u and v are assumed to be geostrophic winds.
(**) Erros are corrected on 14th November 2012
An ncl script for calculating 3-D wave-activity flux defined by Plumb 1985 of multi-level daily fields (code)
An ncl script for calculating 3-D wave-activity flux defined by TN01 of multi-level daily fields (code)
(*) Note that this is not memory efficient, using about 7.5GB memory.
An ncl script for calculating 3-D wave-activity flux defined by TN01 of multi-level monthly fields (code)
(*) Errors are corrected on 25 November 2010. Thanks to Mr. Chuliang Xiao.
(**) Errors are corrected on 25 November 2013. Thanks to Dr. Shengping HE.
(*) Errors are corrected on 25 November 2013. Thanks to Dr. Shengping HE.
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