San Francisco State University Physics and Astronomy Department
SFSU Pacific Oceanography Project
SFSU Private Area. WARNING: Material on this page is work in progress; results and conclusions may change without notice.
( research |PSM home |P&A Dept |SFSU | software )

Plots of spectrogram slope (alpha) versus central frequency (f0) from least-squares fit to the time series, for all events.

Slope of spectrogram alpha versus central frequency f0, large scale (all events on the plot). The numbers in the upper-right-hand corner of each plot are: total number of events, number of events on the plot, (and, for the 1-D plots) mean and standard deviation for the distribution (all events, and "fitted" Gaussian).
f0 vs alpha, medium scale.
f0 vs alpha, small scale.
f0 vs alpha, blowup of central region.

IDL program rdfit.pro used to read in data from least-squares fits.
IDL program plotbw2 used to make the graphs below.