INFORMATION FOR BODC SERIES REF. NO.    33933                  
                         Sea Floor Pressure Gauge Inventory Number :   6926     
 Start Time : 28 Jun 1977 1255 GMT                  Latitude  :  50deg 15.1min N
 End Time   : 12 Aug 1977 1614 GMT                  Longitude : 003deg 33.8min W
 Nominal Cycle Interval   :  600.0 secs         Sensor Depth    :     43.00m    
                                                Sea Floor Depth :     43.00m    
 Positional Uncertainty   : 0.1 to 0.5 n.miles                                  
 Depth Datum              : Instantaneous                                       
 Data Category            : Offshore sea floor pressure series                  
 Instrument Type          : Tide gauge (unspecified)                            
 Instrument Mounting      : Sea floor - fixed                                   
 Originator Laboratory    : Proudman Oceanographic Laboratory, Bidston, UK      
 Originator's Identifier  : 777/977/179                                         
 Additional information stored with the data:                                   
    Station Start Bay, English Channel.                                         
    Clock lost 2 seconds over 57 days, 6.5 hours; the cycle interval  and  time 
    values have been corrected.                                                 
    Instrument characteristics and calibration factors                          
    Aanderaa Current meter/Pressure recorder, logger 1507, sensor DIG 5/1       
           Original sampling interval          10 minutes                       
           Integration period                        600s                       
           Temperature coefficient           0.508Hz/degC                       
           Pressure sensitivity at 16degC      0.157Hz/cm                       
           To convert pressure to elevation the following                       
           values should be used:                                               
           Density                no CTD casts were taken                       
           Gravitational acceleration constant  9.811m/s2                       
 The following additional documents apply to this series:                       
  27731; I.O.S. Calibration and Data Processing of Off-Shore Tide Gauge Data    
  27793; Aanderaa Current Meter/Pressure Recorder