HW3-Sil

READ IMAGE matlab code :

**Figure 2** : FFT of figure 1

**Figure 3** : wavenumber versus power [abs(Ihatsh)] : I may want to change y-axis (unit) later. In the high wave-number region: slope seems to proportional to -3 (higher than 10^3 wavenumber) Between (approximately) 10^2 and 10^3 : the slope is ~ wavenumber^-2 In the lower wave-number region (lower than 10^-2) : slope seems to proportional to -1. ??? where is -5/3 slope??? It is synoptic picture....so 2D?

%--- I corrected the above figure. But...still not sure (it looks a bit strange to me) x-axis: (log)wavenumber y-axis: wavenumber * (sum(Ihatsh^2)) In general, the data follows -5/3 slope between wavenumber 2-6 (Does it make sense? it's synoptic scale...). --This is not for this hw- **Figure 2** : General feature of wind black dashed line : 0 longitude red dashed line : 160W (index=81), longitude=200

**Figure 5 (1D FFT)** : Frequency versus power plot at 160W (longitude=200) To get the time at each peak I used Time = 1/f


 * Figure 3 ** : Time series of wind at 160W