Is it possible to make contour graph with a semilogy scale colorbar?

Hi! I'm trying to plot power spectra that I calculated for each latitude, but the values can only be well seen in log scale.

I am trying to plot a "normal" contourf/pcolor plot [pcolor(frequency,latitude,power_spectra)], but I can only find a way to plot a log scale of the powerspectra [pcolor(log(power_spectra))] and not even with the y and x axis that I need. But regardless, I'd like to only have the y axis as a log scale, not the whole plot.

Is there a way to do it in Matlab?

Thank you all very much,

[Walter Roberson]

Have you tried doing a normal plot and then

set(gca, 'YScale', 'log')

[Fernanda Nascimento]

Yes, but when I do that my latitude values (the YScale) end up in a log, which does not help me very much, since I need the contour plots (ZScale) in log, and not the Y one. I wish there was a way to put the ZScale in a semilog.... but I guess I'll have to use it as just log.

[Walter Roberson]

You can

set(gca,'ZScale', 'log')

but your question said,

"I'd like to only have the y axis as a log scale"

which is incompatible.