threshold can Iw modified by the Investigator depending upon the amount 

 of resolution desired. Figure B-7 Is a sample profile from real bathy- 

 metrlc data collected by the SASS system In the vicinity of the Gorda 

 Rise. Boundaries are less distinct than In the artificially generated 

 signal, as one would expect, however distinct changes of RMS energy (and 

 in two cases changes of slope) do define quasi-stationary provinces. In 

 practice, the slope parameter has offered little Independent information 

 for province picking, and therefore, construction of a simplified prov- 

 ince detector based on RMS energy alone may prove to be adequate. 



147 



