Juan Fernandez-A (Chile) Site History
History Summary
| Station | Juan Fernandez-A |
|---|---|
| Country | Chile |
| Latitude | 33° 37.3' S |
| Longitude | 078° 50.0' W |
| GLOSS No | 176 |
| Time Reference | GMT (hours 00-23) |
| Contributor | UH Sea Level Center |
| Instrument Type | Fischer and Porter Analog-to-Digital Recorder |
| Site of Gauge | |
| Observational periods | 1977-1984 |
Reference Level
All heights have been referred to the station tide staff zero which is linked to fixed benchmarks.
Tide Gauge Benchmark (TGBM) Description
| Benchmark | Description |
|---|---|
| BM No. 3 | It is a 9cm bronze disk stamped CF 3, set in cement at the right side of the basement of the passenger pier. |
| BM No. 6 | It is a 6cm bronze disk stamped CF 6 set in cement at the base of the flag pole front to 'Capitania de Puerto' building. |
Quality Assessment by the UH Sea Level Center
Comment
The daily and monthly means reveal no apparent changes in the reference level. The accuracy of the timing is no better than plus or minus 7 min.
| Year | CI(%) | Missing Data | Replaced Gaps or Bad Data | Questionable Fluctuations |
|---|---|---|---|---|
| 1978 | 40 | 147-365 | none | 38-39,112-118 |
| 1979 | 68 | 1-110,359-365 | none | none |
| 1980 | 0 | 1-365 | none | none |
| 1981 | 83 | 1-45,71-75,191-194,199-201,211-213,225-227 | none | 215-216 |
| 1982 | 95 | 50-53,202-204,286-292,316-321 | none | 28-29 |
| 1983 | 78 | 60-139 | none | none |
| 1984 | 34 | none | none | none |
