INFORMATION FOR BODC SERIES REF. NO. 34230 =============================================================================== Sea Floor Pressure Gauge Inventory Number : 6964 Start Time : 07 Sep 1980 2157 GMT Latitude : 49deg 39.6min N End Time : 23 Oct 1980 0957 GMT Longitude : 008deg 31.7min W Nominal Cycle Interval : 900.0 secs Sensor Depth : 140.00m Sea Floor Depth : 140.00m Positional Uncertainty : 0.1 to 0.5 n.miles Depth Datum : Mean sea level Project : IOS Celtic Sea Experiment 1980 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 : 8010/980/251 =============================================================================== Additional information stored with the data: Station G, Celtic Sea. Clock lost 14 seconds over 49 days, 20.25 hours; the cycle interval and time values have been corrected. Instrument characteristics and calibration factors Aanderaa Current meter/Pressure recorder, logger 302, sensor DIG 4161 Original sampling interval 15 minutes Integration period 900s Temperature coefficient 0.0mb/degC Pressure sensitivity at 10.08degC 0.12896Hz/mb To convert pressure to elevation the following values should be used: Density (from CTD casts) 1026.51kg/m3 Gravitational acceleration constant 9.810m/s2 Discontinuity of approximately 70 millibars in pressure record between 0727h and 0743h 19 Oct 1980. ------------------------------------------------------------------------------- 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 : 28542