INFORMATION FOR BODC SERIES REF. NO.    33797                  
                         Sea Floor Pressure Gauge Inventory Number :   6949     
 Start Time : 05 Sep 1975 1422 GMT                  Latitude  :  49deg 01.6min N
 End Time   : 29 Sep 1975 2207 GMT                  Longitude : 010deg 58.3min W
 Nominal Cycle Interval   :  900.0 secs         Sensor Depth    :    203.00m    
                                                Sea Floor Depth :    203.00m    
 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  : 752/975/248                                         
 Additional information stored with the data:                                   
    Station C4, South west continental shelf                                    
    Clock lost 11 seconds over 46 days, 4.5 hours; the cycle interval and       
    time values have been corrected.                                            
    Instrument characteristics and calibration factors                          
           OSTG Mk II, logger 05, sensor VIB  1/5                               
           Original sampling interval          15 minutes                       
           Integration period                        900s                       
           Temperature coefficient          -0.057Hz/degC                       
           Pressure sensitivity at 8.0degC     0.038Hz/mb                       
           To convert pressure to elevation the following                       
           values should be used:                                               
           Density                         1026.6819kg/m3                       
           No CTD casts were taken, density computed from                       
           mean surface temperatures and ICES salinity.                         
           Gravitational acceleration constant  9.810m/s2                       
    A current meter was also deployed on this mooring.                          
 The following additional documents apply to this series:                       
  27731; I.O.S. Calibration and Data Processing of Off-Shore Tide Gauge Data    
  27762; Off-Shore Tide Gauge Mark II