Penrhyn (Cook Islands) Site History
History Summary
| Station | Penrhyn |
|---|---|
| Country | Cook Islands |
| Latitude | 08° 58.6' S |
| Longitude | 158° 03.2' W |
| GLOSS No | 143 |
| Time Reference | GMT (hours 00-23) |
| Contributor | UH Sea Level Center |
| Instrument type | (primary,Apr 1977-present) Leupold and Stevens Analog-to-Digital Recorder (ADR);
(backup, Jul 1986-present) Handar Encoder (ENC) |
| Primary gauge | ADR: 1977-90
ENC: 1991- |
| Site of gauge | |
| Observational periods | 1977 - present |
Reference Level
All heights have been referred to the station tide staff zero which is linked to fixed benchmarks.
Quality Assessment by the UH Sea Level Centre
Comment
The daily and monthly means reveal no apparent changes in the reference level.
| Year | CI(%) | Missing Data | Replaced Gaps or Bad Data | Questionable Fluctuations |
|---|---|---|---|---|
| 1977 | 35 | 141-240,276-305 | none | none |
| 1978 | 93 | 26-33,64-80,155-156 | none | none |
| 1979 | 96 | 86-92,209-212,348-351 | none | none |
| 1980 | 96 | 27-33,308-319,361-365 | none | none |
| 1981 | 85 | 207-210,224-234,299-339 | none | none |
| 1982 | 99 | 159-161 | none | none |
| 1983 | 77 | 14-19,53-55,57-62,83-102,156-160,223-225,323-365 | none | none |
| 1984 | 75 | 1-92 | none | none |
| 1985 | 98 | 5-7,88-92 | none | none |
| 1986 | 99 | 5-7 | 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 | 100 | none | none | none |
| 1993 | 100 | none | none | none |
| 1994 | 100 | none | none | none |
| 1995 | 100 | none | none | none |
| 1996 | 100 | none | none | none |
| 1997 | 100 | none | none | none |
| 1998 | 100 | none | none | none |
