Contents

  • Data Lineage
  • Figures
  • Figure 1
  • Synopsis of windfield and sum3 for selected times
  • Figure 2
  • Figure 3
  • Supplementary Movies

    • Data Lineage

    Meridional Wind Data

    Data was downloaded from
    IRI - The International Research Institute for Climate and Society
    IRI/LDEA Climate Data Library
    DAILY from NOAA NCEP-NCAR CDAS-1: Climate Data Assimilation System I; NCEP-NCAR Reanalysis Project; outline
    Intrinsic / PressureLevel / v : meridional wind data

    Selection:

    Downloaded on Sep 3 2013 09:29
    25N to 90N
180W to 180E
300 to 300 [mb]
Jul-Aug 1980-2013

    Meridional Wind Data

    as above, but
    Intrinsic / PressureLevel / u: zonal wind data

    Figures

    Figure 1

    Amplitude of wave 6 (black), 7 (red), 8 (blue) of meridional avg
    of 15-day running mean of meridional wind 37.5N-57.5N
    solid horizontal lines: mean over 2012-2013
    dashed horizontal lines: mean + 1.5*stddev over 2012-2013

    Ferret text replaced with postscript text:
    This GIF output does not look that nice, but the .pdf vector graphic should be usable for printing.
    as PDF

    Original ferret output:
    Extr_2012_2013/v-runmean-15day-ampm-over-time-2012.gif
    Extr_2012_2013/v-runmean-15day-ampm-over-time-2013.gif

    The same for 2014

    solid horizontal lines: mean over 2012-2013
    dashed horizontal lines: mean + 1.5*stddev over 2012-2013

    May2014/v-runmean-15day-ampm-over-time-2014.gif
    and as PDF

    Synopsis of windfield and stationary wave number sqaured for selected times

    For the running-mean aggregations, the date information shown is the date of the middle contributing time step in the original data.

    Figure 2

    Extr_2012_2013/plot2sum3-10-aug-2012.gif
    and as PDF

    Figure 3

    Extr_2012_2013/plot2sum3-02-may-2013.gif
    and as PDF

    Supplementary Movies

    First movie: amplitudes over months, may-sep 1980-2013, waves 4-8
    dashed lines show mean + 1.5*std.deviation.
    as OGG as WEBM

    Effective forcing, for different values of kappa

    New layout: F_eff_temp, F_eff_oro, F_eff, its meridional average (weighted by cos phi), and 1-D FFT, 15 day running mean, May-Sep 1980-2013, kappa=0.2.

    (unknown length) as WEBM

    New layout: F_eff_temp, F_eff_oro, F_eff, its meridional average (weighted by cos phi), and 1-D FFT, 15 day running mean, May-Sep 1980-2013, kappa=0.4.

    (unknown length) as WEBM
    Page changed
    Tue Jun 7 14:03:02 CEST 2016: Re-ordered figures according to to final published paper. Removed figures that did not make it into the published paper.
    Sat Feb 6 17:31:14 CET 2021 : improved page header
    Wed Feb 1 10:16:45 CET 2023 : make webm the default movie format