INFORMATION FOR BODC SERIES REF. NO.    33969                  
                         Sea Floor Pressure Gauge Inventory Number :   6975     
 Start Time : 01 Apr 1978 1114 GMT                  Latitude  :  51deg 20.0min N
 End Time   : 13 May 1978 1444 GMT                  Longitude : 006deg 30.0min W
 Nominal Cycle Interval   :  900.0 secs         Sensor Depth    :     95.00m    
                                                Sea Floor Depth :     95.00m    
 Positional Uncertainty   : 0.1 to 0.5 n.miles                                  
 Depth Datum              : Instantaneous                                       
 Project                  : IOS Celtic Sea Experiment 1978                      
 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  : 783/978/091                                         
 Additional information stored with the data:                                   
    Station C, Irish Sea.                                                       
    Clock gained 3 seconds over 76 days 2.25 hours;  the  cycles  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                        104s                       
           No temperature correction made                                       
           Pressure sensitivity at 7.60degC   0.1746Hz/mb                       
           To convert pressure to elevation the following                       
           values should be used:                                               
           Density (from CTD casts)           1026.9kg/m3                       
           Gravitational acceleration constant  9.812m/s2                       
    A thermistor chain was incorporated on this rig.                            
 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        :   27220