French Frigate Shoals (USA) Site History
History Summary
| Station name | French Frigate Shoals |
|---|---|
| Country | USA |
| Latitude | 23° 52.0' N |
| Longitude | 166° 17.4' W |
| GLOSS No. | 107 |
| Time Reference | GMT (hours 00-23) |
| Contributor | UH Sea Level Center |
| Instrument type | Fischer and Porter Analog-to-Digital Recorder; Handar Encoder (installed and became primary gauge 11 Oct 1996) |
| Site of Gauge | |
| Observational Period | 1974 - present |
Reference Level
All heights have been referred to the station tide staff zero which is linked to fixed bench marks.
Tide Gauge Benchmark (TGBM) Description
BM Control
Auxilliary Benchmarks
UH2 SS bolt head, set in concrete, at entrance of tide house.
UH3 SS bolt set in concrete, stamped 'KAMBIC/JONES' on sea wall 2ft west of tide well.
UH4 SS bolt head set in concrete, stamped '4', located at the north west corner of the Weather Service tower.
UH5 SS bolt head set in concrete, NW corner steps of Main building
Quality Assessment by the UH Sea Level Center
Comment
The data from July 1974 to 16 August 1975 are from a standard float/well gauge (analog).
The daily and monthly means reveal no obvious shifts or trends.
| Year | CI (%) | Missing Data | Replaced Gaps or Bad Data | Questionable Fluctuations |
|---|---|---|---|---|
| 1974 | 50 | none | none | none |
| 1975 | 98 | 227-228,254-259 | none | none |
| 1976 | 95 | 34-36,59-61,115-116,199-200, 316-322 | none | none |
| 1977 | 90 | 220-224,306-335 | none | none |
| 1978 | 99 | 322-324 | none | none |
| 1979 | 98 | 21-23,299-300,332-333 | none | none |
| 1980 | 98 | 56-61,160-162 | none | none |
| 1981 | 99 | 167-169,259-260 | none | none |
| 1982 | 100 | none | none | none |
| 1983 | 93 | 78-88,335-345,356-358 | none | none |
| 1984 | 99 | 110-112 | none | none |
| 1985 | 100 | none | none | none |
| 1986 | 71 | 70-79,128-213,317-321,352-356 | none | none |
| 1987 | 83 | 32-90,204-206 | none | none |
| 1988 | 100 | none | none | none |
| 1989 | 100 | none | none | none |
| 1990 | 100 | none | none | none |
| 1991 | 100 | none | none | none |
| 1992 | 100 | none | none | none |
| 1993 | 100 | none | none | none |
| 1994 | 99 | 305-306 | none | none |
| 1995 | 100 | none | none | none |
| 1996 | 100 | none | none | none |
| 1997 | 100 | none | none | none |
| 1998 | 100 | none | 028,361,365 | none |
