Chapter Page 



O. BIOLOGICAL SAMPLING— Continued 



Assembling the Midwater Trawl 0-5 



Streaming the Trawl 0-5 



Towing the Trawl 0-5 



Retrieving the Trawl 0-5 



Additional Instructions 0-5 



Removal of Specimens 0-6 



Maintenance of Midwater Trawl 0-6 



Benthos Sampling 0-6 



Preservation of Biological Specimens 0-6 



Marine FouUng Observations 0-8 



Equipment Required for Obtaining Fouling Observations 0-9 



Selection of Fouling Sites in a Geographic Area 0-9 



Planting the Folding Arrays 0-9 



Recovering the Test Panels 0-9 



Preserving Biological Specimens on the Test Panels 0-1 1 



Analysis of Test Panels,,. 0-11 



General Biological Observations 0-14 



Deep Scattering Layer 0-14 



Seabird Observations 0-14 



P. UN ASSIGNED 



Q. NAVIGATION AND SONIC SOUNDINGS (To Be Prepared) 



R. SONAR PINGER R-1 



General R-1 



Description of the Sonar Pinger R-1 



Assembling Rack and Mounting Sonar Pinger R-2 



Electrical Connections R-3 



Theory of Operation R-4 



Applications of the Sonar Pinger R-4 



Nansen Cast Bottom Positioning Techniques R-4 



Bottom Positioning Technique R-4 



Maintenance of Pinger R-5 



S. OCEANOGRAPHIC STATION SUMMARY AND PLOTTING SHEETS S-1 



General S-1 



Station Summary of Observed Oceanographic Values S-1 



Plotting Observed Oceanographic Values S-1 



Temj^erature-Salinity (T-S) Curves S-1 



Obtaining Interpolated Values S-5 



T. SEISMIC PROFILING SYSTEMS T-1 



Seismic Profiling Systems T-1 



Operating the Seismic Profiling System T-2 



Securing Seismic Profiling Equipment T-4 



Seismic Profiling Data T-4 



U. AGODDS SYSTEM (To Be Prepared) 



V. SHIPBOARD SURVEY SYSTEM (To Be Prepared) 



W, X, Y, Z (Unassigned) 



LIST OF ILLUSTRATIONS 



Page 



A-1 USS San Pablo (AGS-30) Oceanographic survey ship A-3 



A-2 USNS Silas Bent ( AGS-26) Oceanographic survey ship A-4 



A-3 Oceanographic-hydrographic winch A-5 



A-4 Platform, A-Frame, meter wheel, and counter block A-6 



B-1 through B-26 Cloud Types B-4 through B-8 



B-27 Measuring wind speed and direction with Wind Measuring Set (AN-PMQ-5A) B-8 



B-28 Oceanographic Log Sheet-H B-10 and B-11 



B-29 Shipboard installation of pj^rheliometer cells B-14 



B-30 TheSecchi disc B-15 



B-31 Obtaining water color with the Forel scale B-15 



