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Exuma Cays (Bahamas) Data Quality Assessment

Quality assessment of sea level data by the TOGA Sea Level Center/National Oceanographic Data Center Joint Archive for Sea Level.

Station Exuma Cays Latitude 23° 46.4' N
Country Bahamas Longitude 076° 06.3' W
JASL # 256A Time Meridian 075° W (GMT - 5 hr)
GLOSS # None TOGA # None
NODC # 72073601
Contributor: Harbor Branch Oceanographic Institution, Inc. 5600 U.S. 1 North Fort Pierce, FL 34946 USA
Originator: Same
Original Data: Analog
Instrument Type: Stevens Model A float and well gauge with a Telog Instruments Model R-2108 potentiometric recorder connected to the sprocket wheel.
Digitized Interval: 1 second
Present Data: Hourly, daily, and monthly values obtained by:
Hourly: Average of 3600 1-sec samples per hour.
Daily: 119-point convolution filter (Bloomfield, 1976) centred on noon applied to the hourly data with respective periods of the 95, 50, and 5% amplitude points at 124.0, 60.2, and 40.2 hours.
Monthly: Simple average of all daily values; calculated if 7 or fewer days are missing.
Span of Data: 23 March 1992 - 23 April 1993
Gaps > 1 Month: None
Time Reference: GMT (hours 00-23)
Space-filler Flag: -9999
Units: Millimeters
Missing Data Flag: 99999
Reference Level: The sea level heights are relative to a local (arbitrary) datum.
Comment: The gauge is located on Lee Stocking Island. The daily and monthly means do not reveal any obvious reference level shifts. The timing of the hourly values is good.