| General | |
| GLOSS number | 114 |
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| Station name | Nauru, Gilbert Is. |
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| Country | Nauru |
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| Time zone | 180E, GMT + 12hrs |
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| Latitude (+ve N) | -0.53333 |
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| Longitude (+ve E) | 166.9 |
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| Ocean | Pacific |
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| Observation period(s) | 1974- |
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| Responsible country | U.S.A. |
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Authority responsible
for tide gauge | Dr. M. Merrifield, University of Hawaii, Dept. of Oceanography, 1000 Pope Road MSB 307, Honolulu, Hawaii 96822, U.S.A. |
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| GLOSS contact | USA |
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| Committed to GLOSS | Yes |
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| Operational | Yes |
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| Instrumentation | |
| Float | Yes |
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| Pressure | No |
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| Bubbler | No |
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| Acoustic | No |
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| Radar | No |
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| Data | |
| Digital data | Yes |
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| Data acquisition rate | 15 minute intervals, filtered to hourly values |
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| Fast delivery data at UHSLC |   |
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| High frequency data at BODC |  |
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| High frequency data at UHSLC | |
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| Real-time data available | Yes |
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| Benchmarks | |
| Tide gauge benchmarks | UH-1: recessed triangle (steel pin is rusted away), no stamp, located 2ft E of tide well and 1ft from edge of quay (established 01 May 1974) |
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| Benchmark relationships | Datum for levelling is zero of the tide staff established in 1988.
Datum is 3.826m below UH-1 (Oct 1989)
Datum is 3.595m below UH-2B (Oct 1989)
Datum is 6.483m below UH-3B (Oct 1989)
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| Auxiliary benchmarks | UH-2B: 0.5 inch hex head SS screw set in epoxy with 'BM2B' written in cement, located near crane warehouse wall below harbour masters office.
UH-3B: 0.5 inch hex head bolt set in epoxy with 'BM3B' written in cement located on upper curb of Queen's Landing, 50ft S of habour master house.
UH-6A: 3/8 inch brass, located on left side of red door, it is the right hand pin of pair.
(UH-2B, UH-3B established Aug 1983, UH-6A - Oct. 1989)
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| Data at PSMSL | |
| Annual MSL (RLR) data | |
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| Annual MSL (RLR) plot |  |
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| MSL method | average of daily values |
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| PSMSL code | 715/001 |
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| Other relevant codes | UHSLC 004 |
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| Additional information | |
| Other relevant information | Backup gauges on site:
1) Leupold and Stevens (October 1985-)
2) Handar encoder (February 1984-)
Daily values calculated using 119-point convolution filter (Bloomfield, 1976) centred on noon applied to the hourly data with respective periods of the 95, 50 and 5% amplitude points at 124.0, 60.2 and 40.2 hours.
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| Last updated | 1993-12-05 |
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