INFORMATION FOR BODC SERIES REF. NO. 33724
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Sea Floor Pressure Gauge Inventory Number : 6945
Start Time : 04 Jun 1973 1437 GMT Latitude : 53deg 30.0min N
End Time : 17 Jul 1973 1422 GMT Longitude : 003deg 13.0min W
Nominal Cycle Interval : 900.0 secs Sensor Depth : 9.90m
Sea Floor Depth : 9.90m
Positional Uncertainty : 0.1 to 0.5 n.miles
Depth Datum : Chart reference
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 : 733/973/155
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Additional information stored with the data:
Station LB, Liverpool Bay.
Clock lost 3 seconds over 57 days, 3.25 hours; the cycle interval and time
values have been corrected. An interpolation program was used to produce
hourly values, on the hour, of the pressure record.
Instrument characteristics and calibration factors
OSTG Mk II, logger 03, sensor VIB 1/1
Original sampling interval 15 minutes
Integration period 900s
Temperature coefficient 0.111Hz/cm
Pressure sensitivity at 12.0degC 0.040Hz/cm
To convert pressure to elevation the following
values should be used:
Density 1032.10kg/m3
Gravitational acceleration constant 9.814m/s2
No CTD casts were taken; the density value given is the average density
recorded at Liverpool Bay Light Vessel 1935 - 1946. The depths quoted are
relative to Ordnance Datum Newlyn.The depths quoted are relative to
Ordnance Datum Newlyn.
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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