INFORMATION FOR BODC SERIES REF. NO. 33890 =============================================================================== Sea Floor Pressure Gauge Inventory Number : 6957 Start Time : 21 Mar 1977 0952 GMT Latitude : 54deg 38.9min N End Time : 24 Apr 1977 0852 GMT Longitude : 003deg 54.6min W Nominal Cycle Interval : 900.0 secs Sensor Depth : 32.00m Sea Floor Depth : 32.00m 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 : 774/977/080 =============================================================================== Additional information stored with the data: Station 35, Irish Sea. Clock gained 14 seconds over 57 days, 18 hours; the cycle interval and time values have been corrected. Instrument characteristics and calibration factors OSTG Mk II, logger 02, sensor DS 6/1 Original sampling interval 15 minutes Integration period 900s Temperature coefficient 0.0mb/degC Pressure sensitivity at 8degC 0.1644Hz/mb To convert pressure to elevation the following values should be used: Density (from CTD casts) 1025.893kg/m3 Gravitational acceleration constant 9.815m/s2 Sensor DS 6/1 is a Digiquartz sensor housed in an Aanderaa current meter case. ------------------------------------------------------------------------------- The following additional documents apply to this series: 27731; I.O.S. Calibration and Data Processing of Off-Shore Tide Gauge Data 27762; Off-Shore Tide Gauge Mark II ===============================================================================