HEWITT ET AL.; DEVELOPMENT AND USE OF SONAR MAPPING 



Appendix Table 2. — Detected targets and target densities for four classes of bottom 

 topography (zone) in the Los Angeles Bight. 



Zone and name 



No. 



targets 



obs. 



Linear 



nautical miles 



surveyed 



Target 



density 



(targets/nmi^) 



Banks and seamounts: 

 Thirtymile Bank 

 Fortymile Bank 

 Tanner Bank 

 Osborn Bank 

 San Clemente Bank 

 San Nicolas Bank 

 Santa Rosa Bank 

 Santa Rosa S. Bank 

 Coronado Bank 

 Santa Barbara Bank 

 Santa Cruz Bank 

 Lasuen Seamount 



Inx excluding zero values 



S|nx 



Basins and trougtis: 

 San Clemente Basin 

 Catalina Basin 

 San Nicolas Basin 

 San Diego Trough 

 San Pedro Basin 

 Santa Monica Basin 

 Santa Cruz Basin 

 Santa Barbara Basin 



In X excluding zero values 

 •S|nx 



Escarpments and canyons: 

 Coronado Escarpment and Canyon 

 Catalina Escarpment 

 San Clemente Escarpment 

 San Diego Escarpment 

 San Pedro Escarpment and Redondo Canyon 

 San Nicolas Escarpment 

 Santa Cruz Escarpment and Canyon 

 Santa Monica Escarpment 

 Santa Barbara Escarpment 

 Cortez Escarpment 



In X excluding zero values 



S|nx 



Slopes 



3 

 18 



12.40 

 16.99 



6.19 



1.79 

 7.85 



1.20 



Inx excluding zero values 

 S|nx 



299 



