INFORMATION FOR BODC SERIES REF. NO.    33945                  
                         Sea Floor Pressure Gauge Inventory Number :   6960     
 Start Time : 17 Oct 1977 1914 GMT                  Latitude  :  53deg 45.8min N
 End Time   : 25 Nov 1977 1544 GMT                  Longitude : 004deg 07.0min W
 Nominal Cycle Interval   :  900.0 secs         Sensor Depth    :     48.00m    
                                                Sea Floor Depth :     48.00m    
 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  : 778/977/290                                         
 Additional information stored with the data:                                   
    Station D, Irish Sea.                                                       
    No times noted on recovery; therefore no corrections made for clock error.  
    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               0.1878Hz/cm                       
           To convert pressure to elevation the following                       
           values should be used:                                               
           Density (estimated)              1026.881kg/m3                       
           Gravitational acceleration constant  9.814m/s2                       
    Three current meters were also deployed 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