INFORMATION FOR BODC SERIES REF. NO.    33889                  
                         Sea Floor Pressure Gauge Inventory Number :   6956     
 Start Time : 21 Mar 1977 1728 GMT                  Latitude  :  54deg 09.2min N
 End Time   : 24 Apr 1977 1328 GMT                  Longitude : 003deg 04.2min W
 Nominal Cycle Interval   :  900.0 secs         Sensor Depth    :     29.00m    
                                                Sea Floor Depth :     29.00m    
 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  : 773/977/080                                         
 Additional information stored with the data:                                   
    Station 34, Irish Sea.                                                      
    Clock gained 62 seconds over 60 days, 6 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                        104s                       
           No temperature correction made                                       
           Pressure sensitivity at 8degC      0.1878Hz/mb                       
           To convert pressure to elevation the following                       
           values should be used:                                               
           Density (from CTD casts)         1025.813kg/m3                       
           Gravitational acceleration constant  9.814m/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