INFORMATION FOR BODC SERIES REF. NO. 34082 =============================================================================== Sea Floor Pressure Gauge Inventory Number : 6928 Start Time : 01 Apr 1980 1307 GMT Latitude : 51deg 24.6min N End Time : 29 Apr 1980 1237 GMT Longitude : 005deg 00.6min W Nominal Cycle Interval : 900.0 secs Sensor Depth : 60.00m Sea Floor Depth : 60.00m 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 : 801/980/092 =============================================================================== Additional information stored with the data: Station BC3, Bristol Channel. Clock gained 18 seconds over 36 days, 0.25 hours; the cycle interval and time values have been corrected. Instrument characteristics and calibration factors Teleost Pressure Recorder, sensor S/G, serial number 281 Original sampling interval 15 minutes Integration period 900s No temperature correction made Temperature coefficient -0.495Hz/degC Pressure sensitivity at 9.867degC 0.0780Hz/mb To convert pressure to elevation the following values should be used: Density 1027kg/m3 Gravitational acceleration constant 9.812m/s2 On recovery mud was found on one side of the frame as if the rig had been held in mud. Density calculated from measured temperatures and a regional salinity of 35 parts per thousand. ------------------------------------------------------------------------------- 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