AMWG Variability Diagnostics for 6-Hourly Data
Wavenumber-Frequency Power Spectra
Zonal wavenumber-frequency logarithm of power spectra calculated from 06Z and
18Z data (summed 15S to 15N) of anti-symmetric and symmetric components of data.
Fortran code for computing the space-time spectra and the observed OLR dataset
supplied by Matthew Wheeler. See Wheeler and Kiladis, JAS, vol 56, 374-399, 1999.
The observed OLR data is from NOAA polar-orbiting satellites and covers
the period 1979-2000. The CAM3 Amip (t42) and NCEP Reanalysis data are for the
period 1991-2000.
| OLR (outgoing LW radiation)
| SILHS_NoZM_cnm_PO346q_var
| NOAA
| NCEP
| CAM3 Amip (T42)
|
| Anti-symmetric raw power spectra (WK99 Fig. 1a)
| plot
| plot
| plot
| plot
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| Symmetric raw power spectra (WK99 Fig. 1b)
| plot
| plot
| plot
| plot
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| Background power spectra (WK99 Fig. 2)
| plot
| plot
| plot
| plot
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| Anti-symmetric/background power spectra (WK99 Fig. 3a)
| plot
| plot
| plot
| plot
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| Symmetric/background power spectra (WK99 Fig. 3b)
| plot
| plot
| plot
| plot
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| U200 (200 mb zonal wind)
| SILHS_NoZM_cnm_PO346q_var
| NCEP
| CAM3 Amip (T42)
|
| Anti-symmetric raw power spectra (WK99 Fig. 1a)
| plot
| plot
| plot
|
| Symmetric raw power spectra (WK99 Fig. 1b)
| plot
| plot
| plot
|
| Background power spectra (WK99 Fig. 2)
| plot
| plot
| plot
|
| Anti-symmetric/background power spectra (WK99 Fig. 3a)
| plot
| plot
| plot
|
| Symmetric/background power spectra (WK99 Fig. 3b)
| plot
| plot
| plot
|
| U850 (850 mb zonal wind)
| SILHS_NoZM_cnm_PO346q_var
| NCEP
| CAM3 Amip (T42)
|
| Anti-symmetric raw power spectra (WK99 Fig. 1a)
| plot
| plot
| plot
|
| Symmetric raw power spectra (WK99 Fig. 1b)
| plot
| plot
| plot
|
| Background power spectra (WK99 Fig. 2)
| plot
| plot
| plot
|
| Anti-symmetric/background power spectra (WK99 Fig. 3a)
| plot
| plot
| plot
|
| Symmetric/background power spectra (WK99 Fig. 3b)
| plot
| plot
| plot
|
| PRECT (precipitation rate)
| SILHS_NoZM_cnm_PO346q_var
| NCEP
| CAM3 Amip (T42)
|
| Anti-symmetric raw power spectra (WK99 Fig. 1a)
| plot
| plot
| plot
|
| Symmetric raw power spectra (WK99 Fig. 1b)
| plot
| plot
| plot
|
| Background power spectra (WK99 Fig. 2)
| plot
| plot
| plot
|
| Anti-symmetric/background power spectra (WK99 Fig. 3a)
| plot
| plot
| plot
|
| Symmetric/background power spectra (WK99 Fig. 3b)
| plot
| plot
| plot
|
| OMEGA500 (500 mb vertical velocity)
| SILHS_NoZM_cnm_PO346q_var
| NCEP
| CAM3 Amip (T42)
|
| Anti-symmetric raw power spectra (WK99 Fig. 1a)
| plot
| plot
| plot
|
| Symmetric raw power spectra (WK99 Fig. 1b)
| plot
| plot
| plot
|
| Background power spectra (WK99 Fig. 2)
| plot
| plot
| plot
|
| Anti-symmetric/background power spectra (WK99 Fig. 3a)
| plot
| plot
| plot
|
| Symmetric/background power spectra (WK99 Fig. 3b)
| plot
| plot
| plot
|
