Kanton-B (Kiribati) Site History
History Summary
| Station | Kanton-B |
|---|---|
| Country | Republic of Kiribati |
| Latitude | 02° 48.6' S |
| Longitude | 171° 43.1' W |
| GLOSS No | 145 |
| Time Reference | GMT (hours 00-23) |
| Contributor | UH Sea Level Center |
| Instrument type | (May 1972 - Feb 1975) Unconfirmed
(Feb 1975 - Feb 1986) Fischer and Porter Analog-to-Digital Recorder (ADR) (Feb 1986-present) Leupold and Stevens Analog-to-Digital Recorder (ADR) (Feb 1982-present) Handar Encoder |
| Primary Gauge | ADR: 1975-90
ENC: 1991- |
| Site of guage | |
| Observational periods | 1972 - present |
Reference Level
All heights have been referred to the station tide staff zero which is linked to fixed benchmarks.
Benchmarks
| UH-1
(TGBM) |
SS hex head bolt, no stamp, set in epoxy on left side of front step to bldg. 138 (established 13 December 1977) |
| BM11
(Auxilliary) |
Standard disk,unstamped, set in top of concrete sea wall at north end of main shipdock and on NW side of entrance to wooden finger pier and level with the dock area (established 1961) |
| BM12
(Auxilliary) |
Drill hole with 'BM 1962' inscribed in concrete (not legible 1990) located in top centre of sea wall. It is 24ft NE of SW corner of sea wall, 44ft SW of W corner of pump house near tide station. |
| UH-2
(Auxilliary) |
Square SS plate set in white epoxy, no marking, near BM 12, set about 2ft in from edge of sea wall and 3ft E of BM 12. |
| SW2
(Auxilliary) |
0.25 inch SS bolt head, located on top of the 3 inch black ABS end cap used for witch switch. The switch is mounted on the side of the new tide staff support pole. UH-2 and SW2 established 21 March 1990. |
Quality Assesment by the UH Sea Level Center
Comment
The daily and monthly means reveal no apparent changes in the reference level and agree well with Christmas Island.
| Year | CI (%) | Missing Data | Replaced Gaps or Bad Data | Questionabe Fluctuations |
|---|---|---|---|---|
| 1973 | 97 | 121-132 | none | 294-295,327-329 |
| 1974 | 100 | none | none | 275-277 |
| 1975 | 99 | 137-142 | none | none |
| 1976 | 100 | none | none | none |
| 1977 | 99 | 316-318 | none | none |
| 1978 | 98 | 111-114,166-169 | none | none |
| 1979 | 96 | 95-96,227-284,299-304 | none | 61-63,249-251,276-277 |
| 1980 | 62 | 17-23,232-366 | none | none |
| 1981 | 29 | 1-79,183-365 | none | none |
| 1982 | 67 | 1-14,122-152,183-257 | none | none |
| 1983 | 78 | 48-59,119-153,213-245 | none | none |
| 1984 | 100 | none | none | 49,104-105 |
| 1985 | 87 | 14-62 | none | none |
| 1986 | 100 | none | none | none |
| 1987 | 100 | none | none | none |
| 1988 | 100 | none | none | none |
| 1989 | 100 | none | none | none |
| 1990 | 100 | none | none | none |
| 1991 | 100 | none | none | none |
| 1992 | 99 | 236-238 | none | none |
| 1993 | 100 | none | none | none |
| 1994 | 99 | 74-76 | (00)065-(12)065 | none |
| 1995 | 100 | none | none | none |
| 1996 | 100 | none | none | none |
| 1997 | 100 | none | none | none |
| 1998 | 100 | none | (00)049-(22)049 | none |
