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 versus
central frequency from least-squares fit, for convergent events,
showing a progression from
ill-fitting events (nchi2 > 1) to best-fitting events
(nchi2 < .1).
Of 4016 events, 3947 were convergent.
| 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.
This sample consists of convergent events with nchi2 > 1. , that is,
events with not a very good fit. |
 |
| f0 vs alpha, convergent,
nchi2 < 1. |
 |
| f0 vs alpha, convergent,
nchi2 < .7
|
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| f0 vs alpha, convergent,
nchi2 < .5
|
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| f0 vs alpha, convergent,
nchi2 < .3
|
 |
| f0 vs alpha, convergent,
nchi2 < .1
|
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IDL program rdfit.pro used to read in
data from least-squares fits.
IDL program plotbw2 used to make the
graphs above.