Settlement Point (Bahamas) Site History

History Summary

Station Name Settlement Point
Latitude 26° 46.2' N
Longitude 078° 59.8' W
Country Bahamas
GLOSS No. 211
Time Reference GMT (00-23 hours)
Contributor (1985-2000) NOAA/NOS, USA
Instrument Type (1985-1993) Analog-to-Digital Recorder
(1993-2000) NOAA Next Generation Water Level Measuring System (NGWLMS)
Site of Gauge  
Observational Periods 1985 - 1993, 1996 - 2000
Reference Level All data are referred to Tide Gauge Zero and are linked into historic fixed benchmarks.

Tide Gauge Benchmark (TGBM) Description

BM control - 5 local benchmarks used to determine site stability

Benchmark Relationships

Local levelling with respect to mean sea level only.

Quality Assessment

Comments

Possible datum shift -10cm on 20 July 1992.

The data for 1996-2000 were supplied with heights relative to MLLW. Consequently 11729mm was added to refer the data to tide gauge zero.

The data for 1996-2000 were supplied in non-GMT format and had to be shifted into GMT.

Year Completeness
Index (%)
Questionable Fluctuations (In day Nos.)
and Missing Data (Gaps > 6 hours)
1985 89 None
1986 100 None
1987 100 None
1988 99 None
1989 62 None
Gap from 1989/02/09 at 21.00 to 1989/04/11 at 16.00
Gap from 1989/05/25 at 15.00 to 1989/06/07 at 15.00
Gap from 1989/09/03 at 18.00 to 1989/10/06 at 19.00
1990 100 None
1991 100 164,304-305
1992 100 163-164,261-267
1993 100 None
1996 100 30-33,81-84,98-104,108-112,128-132,135-140,164-173,192- 200,205-210,234-242,263-264,290-297,310-315,321-325, 346-356
1997 100 3-9,61-65,97-100,119-122,126-129,149-160,178-189,222- 229,251-260,281-287,310-316,337-344
1998 47 108-112,121,173-179,330-335
Gap from 1998/05/01 at 05.00 to 1998/06/22 at 22.00
Gap from 1998/06/28 at 23.00 to 1998/11/17 at 21.00
1999 85 5,289,320
Gap from 1999/01/06 at 04.00 to 1999/01/14 at 19.00
Gap from 1999/11/16 at 13.00 to 1999/12/31 at 23.00
2000 100 50-55,74-81,131-143,166-172,177-185,195-202,263-271, 277-282,291-298,320-325