INFORMATION FOR BODC SERIES REF. NO.    34217                  
                                                                                
 ===============================================================================
                                                                                
                         Sea Floor Pressure Gauge Inventory Number :   6940     
                                                                                
 Start Time : 10 May 1981 0537 GMT                  Latitude  :  55deg 19.6min N
 End Time   : 18 Jun 1981 2052 GMT                  Longitude : 000deg 32.7min W
                                                                                
 Nominal Cycle Interval   :  900.0 secs         Sensor Depth    :     70.00m    
                                                Sea Floor Depth :     70.00m    
                                                                                
 Positional Uncertainty   : 0.1 to 0.5 n.miles                                  
 Depth Datum              : Instantaneous                                       
                                                                                
 Project                  : IOS North Sea Experiment 1981                       
                                                                                
 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  : 818/981/130                                         
                                                                                
 ===============================================================================
                                                                                
 Additional information stored with the data:                                   
                                                                                
    Station L, North Sea.                                                       
    Clock gained 15 seconds over 53 days, 10.75 hours; the cycle  interval  and 
    time values have been corrected.                                            
                                                                                
    Instrument characteristics and calibration factors                          
           Teleost Pressure Recorder, sensor S/G, serial number 284             
           Original sampling interval          15 minutes                       
           Integration period                        900s                       
           Temperature coefficient          -1.803Hz/degC                       
           Pressure sensitivity at 5.987degC   0.070Hz/mb                       
                                                                                
 -------------------------------------------------------------------------------
                                                                                
 The following additional documents apply to this series:                       
                                                                                
  27731; I.O.S. Calibration and Data Processing of Off-Shore Tide Gauge Data    
  27840; Teleost Pressure Recorder
 Project Document        :   28556                                              
                                                                                
 ===============================================================================