INFORMATION FOR BODC SERIES REF. NO. 33957 =============================================================================== Sea Floor Pressure Gauge Inventory Number : 6961 Start Time : 25 Mar 1978 0822 GMT Latitude : 51deg 45.0min N End Time : 13 May 1978 0837 GMT Longitude : 006deg 36.0min 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 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 : 782/978/084 =============================================================================== Additional information stored with the data: Station B, Celtic Sea. On recovery instrument had stopped due to a flat battery, so no timings at the end of the record were available, hence no time corrections made. Instrument characteristics and calibration factors Aanderaa Current meter/Pressure recorder, logger 1747, sensor DIG 280 Original sampling interval 15 minutes Integration period 900s No temperature correction made Pressure sensitivity at 7.66degC 0.1525Hz/mb To convert pressure to elevation the following values should be used: Density (from CTD casts) 1027.0Kg/m3 Gravitational acceleration constant 9.812m/s2 ------------------------------------------------------------------------------- The following additional documents apply to this series: 27731; I.O.S. Calibration and Data Processing of Off-Shore Tide Gauge Data 27793; Aanderaa Current Meter/Pressure Recorder Project Document : 27220 ===============================================================================