INFORMATION FOR BODC SERIES REF. NO.    34021                  
                         Sea Floor Pressure Gauge Inventory Number :   6979     
 Start Time : 05 Aug 1979 0914 GMT                  Latitude  :  54deg 57.7min N
 End Time   : 22 Sep 1979 0944 GMT                  Longitude : 005deg 35.7min W
 Nominal Cycle Interval   :  900.0 secs         Sensor Depth    :    157.00m    
                                                Sea Floor Depth :    157.00m    
 Positional Uncertainty   : 0.1 to 0.5 n.miles                                  
 Depth Datum              : Instantaneous                                       
 Project                  : IOS North Channel Experiment 1979                   
 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  : 792/979/217                                         
 Additional information stored with the data:                                   
    Station B, North Channel.                                                   
    Clock gained 4 seconds over 54 days 5 hours; the cycle  interval  and  time 
    values have been corrected.                                                 
    Instrument characteristics and calibration factors                          
           Aanderaa Pressure Recorder Type TG-2A, serial number 64              
           Original sampling interval          15 minutes                       
           Integration period                        100s                       
           No temperature correction made                                       
           Pressure sensitivity            6.110counts/mb                       
                                           (at 11.66degC)                       
           To convert pressure to elevation the following                       
           values should be used:                                               
           Density (from CTD casts)           1026.1kg/m3                       
           Gravitational acceleration constant  9.815m/s2                       
 The following additional documents apply to this series:                       
  27731; I.O.S. Calibration and Data Processing of Off-Shore Tide Gauge Data    
  27806; Aanderaa Pressure Recorder Type TG-2A and WLR-5                        
 Project Document        :   27217