| General | |
| GLOSS number | 236 |
| Station name | Lerwick |
| Country | U.K. |
| Time zone | 000E, GMT |
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| Latitude (+ve N) | 60.15 |
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| Longitude (+ve E) | -1.13333 |
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| Ocean | Atlantic |
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| Observation period(s) | 1957- |
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| Responsible country | U.K. |
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Authority responsible for tide gauge | Tide Gauge Inspectorate, Proudman Oceanographic Laboratory, 6 Brownlow Street, Liverpool, L3 5DA, UK
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| GLOSS contact | UK |
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| Committed to GLOSS | Yes |
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| Operational | Yes |
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| Location map |  |
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| Instrumentation | |
| Float | No |
| Pressure | Yes |
| Bubbler | Yes |
| Acoustic | No |
| Radar | Yes |
| Data | |
| Digital data | Yes |
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| Data acquisition rate | Recording at 15 minute intervals, filtered to hourly heights. |
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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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| Data held at national organisation | Yes |
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| Real-time data available | Yes |
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| Benchmarks | |
| Tide gauge benchmarks | Ordnance Survey Benchmark bolt on breakwater wall.
Ordnance Survey Grid Reference: HU 4783 4129
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| Benchmark relationships | Tide Gauge Zero = Admiralty Chart Datum (ACD)
Tide Gauge Zero = 1.22m below local Ordnance Datum
Tide Gauge Zero = 4.57m below Tide Gauge Benchmark (from 1989 onwards)
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| Auxiliary benchmarks | AUX 1: On SW face (south angle) of Queens Hotel. OS Grid Reference HU 4784 4125
AUX 2: On N face (north west angle) of Lerwick Parish Church. OS Grid Reference HU 4777 4110
Rivet: Set in concrete on north east angle of tide gauge hut.
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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 | Doodson X0 filter |
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| PSMSL code | 170/001 |
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| Other relevant codes | UHSLC 293 |
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| Additional information | |
| Nearest Met. station | Sumburgh |
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| Last updated | 1997-12-05 |