INFORMATION FOR BODC SERIES REF. NO.    34150                  
                         Sea Floor Pressure Gauge Inventory Number :   6935     
 Start Time : 13 Feb 1981 0722 GMT                  Latitude  :  07deg 24.8min N
 End Time   : 21 Feb 1981 0937 GMT                  Longitude : 081deg 50.8min E
 Nominal Cycle Interval   :  900.0 secs         Sensor Depth    :      1.40m    
                                                Sea Floor Depth :      1.40m    
 Positional Uncertainty   : 0.1 to 0.5 n.miles                                  
 Depth Datum              : Chart reference                                     
 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  : 811/981/044                                         
 Additional information stored with the data:                                   
    Station Kalmunai, Sri Lanka.                                                
    Clock assumed correct. The instrument was deployed in a wooden  box  filled 
    with pebbles, with the pressure recorder sitting vertically in the centre.  
    Instrument characteristics and calibration factors                          
           Teleost Pressure Recorder, sensor DIG, serial number 281             
           Original sampling interval          15 minutes                       
           Integration period                        900s                       
           Temperature coefficient          -0.482Hz/degC                       
           Pressure sensitivity at 26.734degC 0.3215Hz/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