Stornoway (Hebrides) Site History
History Summary
| Station name | Stornoway |
|---|---|
| Country | Hebrides, U.K. |
| Latitude of measuring point | 58° 12' 27.8" N |
| Longitude of measuring point | 06° 23' 20.0" W |
| OS grid ref. of measuring point | NB 4228 3265 |
| Datum reference | All data refer to Admiralty Chart Datum (ACD) |
| Time reference | GMT (hours 00-23) |
| Contributor | Tide Gauge Inspectorate (TGI), Proudman Oceanographic Laboratory, Joseph Proudman Building, 6 Brownlow Street, Liverpool, L3 5DA, U.K. |
| Instrument type | 1975 - Float gauge and chart recorder. 1982 - Ott pneumatic with punch tape recorder. 1985 - DATARING system installed, with a pneumatic bubbler system. |
| Site of measuring point | East side of No. 2 wharf. |
| Position of tide gauge building | NB 4228 3273 - GRP Building East side entrance No. 2 wharf |
| Observational periods | 1976, 1978-1981, 1983, 1985-2006 |
Benchmark descriptions
| Benchmark | OS grid ref. | Description | Height above ODL (m) |
|---|---|---|---|
| TGBM | NB 4228 3264 | OSBM bolt E side of No 2 wharf | 3.658 |
| Aux1 | NB 4215 3271 | OSBM bolt STS NE angle King Edwards Wharf | 3.127 |
| Aux2 | NB 4212 3275 | Amity House E side of Espl Rd N face NW angle | 4.066 |
| Aux3 | NB 4223 3280 | BK S side Worth Beach NW angle N face | 3.788 |
ODL = Ordnance Datum Local (local datum correlated to pre 1900 assumed mean sea level)
Datum Information
Please see document 83389
All data now refer to Admiralty Chart Datum (ACD). The following years have been altered (see table below).
| Period | Correction Applied (m) |
|---|---|
| 01/01/1976 - 20/08/1976 | -2.86 |
| 20/08/1976 - 31/12/1976 | -2.51 |
| 01/01/1978 - 29/05/1978 | -2.51 |
| 29/05/1978 - 31/12/1978 | -2.98 |
| 01/01/1979 - 31/12/1979 | -3.043 |
| 01/01/1980 - 01/01/1980 | -3.06 |
Benchmark Relationships
Please see document 83389
Quality Assessment
All data have been compared with the current Harmonic Constants library, and residuals checked. Records have been visually inspected for spikes, datum shifts and timing errors.
- ASLVZZ01 = Sea Level, Unspecified Method (metres)
- ASLVBG01 = Bubbler, Sea Level (metres)
- ASLVBG02 = Bubbler, Sea Level (metres)
- ASLVBH01 = Bubbler, Half Tide (metres)
Please Note: The Completeness index has been calculated for the primary channel only. Where there are multiple channels, the primary channel is ASLVBG02.
1200h 06 Sept 1976-1400h 07 Sept 1976 Gauge disconnected and temporarily reset to wrong datum.
| Period | Parameter | Missing data | Suspect data | Completeness index (%) | Sample interval |
|---|---|---|---|---|---|
| 1976 | ASLVZZ01 | 250-251 | 002,008,032-036,062-068,089-098,107-112,204-216,225-229,232-233,247-250,264-273,295-305,326-332 | 99 | 60 minutes |
| 1978 | ASLVZZ01 | None | 040-044,086-092,114-120,142-151 | 100 | 60 minutes |
| 1979 | ASLVZZ01 | 176-207 | 131-136,172-176,221-237,279-283,351-357 | 92 | 60 minutes |
| 1980 | ASLVZZ01 | None | 161-168 | 100 | 60 minutes |
| 1981 | ASLVZZ01 | None | 113-122,154-159,179-185 | 100 | 60 minutes |
| 1983 | ASLVZZ01 | 001-049,211-365 | None | 45 | 60 minutes |
| 1985 | ASLVBG02 | 001-111,179-184,275-276,324-325 | 214-217 | 68 | 60 minutes |
| 1986 | ASLVBG02 | None | None | 100 | 60 minutes |
| 1987 | ASLVBG02 | 111-112,119 | 149-156 | 99 | 60 minutes |
| 1988 | ASLVBG02 | 201-202,235-259 | None | 93 | 60 minutes |
| 1989 | ASLVBG02 | 153-156,255 | None | 99 | 60 minutes |
| 1990 | ASLVBG02 | 338-348 | None | 97 | 60 minutes |
| 1991 | ASLVBG02 | 093-133,163-164 | None | 88 | 60 minutes |
| 1992 | ASLVBG02 | 007-009,357-358 | None | 99 | 60 minutes |
| 1993 | ASLVBG01 | 023-025,145-147 | 003-023,025-132,145 | ||
| ASLVBG02 | 023-025,145-147 | 145 | 99 | 15 minutes | |
| 1994 | ASLVBG01,ASLVBG02 | 102,126,171-172,179-186,319,341-365 | None | 90 | 15 minutes |
| 1995 | ASLVBG01,ASLVBG02 | 001-061,066-067,100-101,156-159,207-215,251-256 | 178-185,316-317 | 78 | 15 minutes |
| ASLVBH01 | 001-101,156-159,207-215,251-256 | 178-185,316-317 | |||
| 1996 | ASLVBG01 | 089-092,219-226,323-324,352-365 | 050,051,095-102,256-257,303-305 | ||
| ASLVBG02 | 089-092,219-226,323-324,352-365 | 050,051,095-102,253,254-257,303-305 | 93 | 15 minutes | |
| ASLVBH01 | 089-092,219-226,323-324,352-365 | None | |||
| 1997 | ASLVBG01,ASLVBG02,ASLVBH01 | 055-056,189-191,217-219,224,231,343-346,347-349,357-363 | None | 94 | 15 minutes |
| 1998 | ASLVBG01 | 038-041,057-058,093,168-174,251-254 | 012-015,278-280 | ||
| ASLVBG02 | 038-041,057-058,093,168-174,251-254 | 010,011,012,013-014,275-280 | 96 | 15 minutes | |
| ASLVBH01 | 038-041,057-058,093,168-174,251-254 | 013-014 | |||
| 1999 | ASLVBG01,ASLVBG02,ASLVBH01 | 040-051,065-068,097-103,138,142-145,169-174,182-187,208-209,213-219,222-226,320-334,357-363 | 015-019 | 83 | 15 minutes |
| 2000 | ASLVBG01 | 009-010,112-116,148-152 | 003-009,119 | ||
| ASLVBG02 | 009-010,112-116,148-152 | 119 | 97 | 15 minutes | |
| ASLVBH01 | 009-010,112-116,148-152 | None | |||
| 2001 | ASLVBG01,ASLVBG02 | 086-092 | 228-229,242,289-295 | 98 | 15 minutes |
| ASLVBH01 | 086-365 | None | |||
| 2002 | ASLVBG01,ASLVBG02 | None | None | 100 | 15 minutes |
| 2003 | ASLVBG01,ASLVBG02 | 235-254 | 312-316 | 95 | 15 minutes |
| 2004 | ASLVBG01 | 076,147-160 | 070-076,114-147,185-189,260,266-275,282-293,329-341,347-350,358-366 | ||
| ASLVBG02 | 076,147-160 | 114-147,185-189,270-275,286-293,331-341,364-366 | 96 | 15 minutes | |
| ASLVBH01 | 001-160 | None | |||
| 2005 | ASLVBG01 | 124-126,266,270-271,282-290 | 001-005,011-013,020-025,034-040,051-054,081-082,095-096,108-110,118-119,261-262,264-270,272-282,296-298,299-302,304-306,308-309,311-316,334,363 | ||
| ASLVBG02 | 124-126,266,270-271,282-290 | 001-005,024-025,039-040,264-270,272-282 | 97 | 15 minutes | |
| ASLVBH01 | 124-126,266,270-271,282-290 | 264-270,272-282 | |||
| 2006 | ASLVBG01 | 107-109 | 002-016,041-042,045-047,070-072,081,083-084,112,114,115,123,171,265,281-282,284-285,313-314,323,330-337,344,346-347,362-365 | ||
| ASLVBG02,ASLVBH01 | 107-109 | None | 99 | 15 minutes | |
| 2007 | ASLVBG02 | 353-357 | 210-235,253-256 | 99 | 15 minutes |
| 2008 | ASLVBG02 | None | 026-142 | 100 | 15 minutes |
| 2009 | ASLVBG02 | None | None | 100 | 15 minutes |
