INFORMATION FOR BODC SERIES REF. NO. 33748 =============================================================================== Sea Floor Pressure Gauge Inventory Number : 6947 Start Time : 08 Sep 1973 1206 GMT Latitude : 52deg 27.1min N End Time : 21 Oct 1973 1151 GMT Longitude : 003deg 14.5min E Nominal Cycle Interval : 900.0 secs Sensor Depth : 35.00m Sea Floor Depth : 35.00m Positional Uncertainty : 0.1 to 0.5 n.miles Depth Datum : Instantaneous Project : JONSDAP 1973 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 : 735/973/251 =============================================================================== Additional information stored with the data: Station WE, Southern North Sea Clock gained 6 seconds over 58 days, 23.25 hours; the cycle interval and time values have been corrected. Instrument characteristics and calibration factors OSTG Mk II, logger 02, sensor VIB 1/3 Original sampling interval 15 minutes Integration period 900s Temperature coefficient 11.3cm/degC Pressure sensitivity at 14.9degC 0.036Hz/cm To convert pressure to elevation the following values should be used: Density (from CTD casts) 1025.48kg/m3 Gravitational acceleration constant 9.813m/s2 Large sandwave in vicinity of OSTG position on launch. ------------------------------------------------------------------------------- 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 Project Document : 26423