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Tobermory site history

History summary

Station name Tobermory
Country UK
Latitude of measuring point 56° 37' 23.2" N
Longitude of measuring point 06° 03' 51.2" W
OS grid ref. of measuring point NM 5080 5529
Datum reference All data refer to Admiralty Chart Datum (ACD)
ACD = ODN -2.39m
Time reference GMT (hours 00-23)
Contributor Environment Agency Anglian Regional Office,
Kingfisher House,
Goldhay Way, Orton Goldhay,
Peterborough,
Cambridgeshire, PE2 5ZR
Instrument type The tide gauge site was modernised to accommodate DATARING in August 1987 with 2 digiquartz sensors on pressure gauge systems.
Site of measuring point The pressure points are located on one of the legs on Mishnish Pier.
Position of tide gauge building NB 5079 5531 - The Tide Gauge equipment is located in the Caledonian MacBrayne office on Mishnish Pier, Tobermory
Observational period 1987 - 2026

Benchmark descriptions

Benchmark OS grid ref. Description Height above ODN (m)
TGBM NM 5069 5530 Flush bracket G5186 on SW angle of Royal Buildings 4.466
Aux1   No details  
Aux2 NM 5077 5529 NBM rivet in sea wall of Mishnish Pier 3.842
Aux3   No details  
BM NM 5080 5529 Ref pin above datum probe 3.719

ODN = Ordnance Datum Newlyn

Parameters

Please Note: All parameters listed below are sea level measured in metres. Different parameter codes represent different gauges. For an explanation of the codes, please see the BODC parameter dictionary.

Period Parameters Completeness index (%) Sample interval
1990 ASLVBG02 100 60 minutes
1991 ASLVBG02 100 60 minutes
1992 ASLVBG02 94 60 minutes
1993 ASLVBG02 77 15 minutes
1994 ASLVBG02 100 15 minutes
1995 ASLVBG02 100 15 minutes
1996 ASLVBG02 94 15 minutes
1997 ASLVBG02 100 15 minutes
1998 ASLVBG02 86 15 minutes
1999 ASLVBG02 64 15 minutes
2000 ASLVBG02 56 15 minutes
2001 ASLVBG02 35 15 minutes
2002 ASLVBG02 95 15 minutes
2003 ASLVBG02 89 15 minutes
2004 ASLVBG02 98 15 minutes
2005 ASLVBG02 96 15 minutes
2006 ASLVBG02 95 15 minutes
2007 ASLVBG02 95 15 minutes
2008 ASLVBG02 100 15 minutes
2009 ASLVBG02 99 15 minutes
2010 ASLVBG02 96 15 minutes
2011 ASLVBG02 100 15 minutes
2012 ASLVBG02 99 15 minutes
2013 ASLVBG02 100 15 minutes
2014 ASLVBG02 99 15 minutes
2015 ASLVBG02 100 15 minutes
2016 ASLVBG02 100 15 minutes
2017 ASLVBG02 100 15 minutes
2018 ASLVBG02 100 15 minutes
2019 ASLVBG02 100 15 minutes
2020 ASLVBG02 100 15 minutes
2021 ASLVBG02 100 15 minutes
2022 ASLVBG02 99 15 minutes
2023 ASLVBG02 99 15 minutes
2024 ASLVBG02 January - December 15 minutes
2025 ASLVBG02
ASLVBG01
January - August
September - December
15 minutes
2026 ASLVBG01 January - May 15 minutes

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.
Where there are problems with the primary channel, data may be available from the backup channel. Please contact enquiries@bodc.ac.uk for more information.
February 2003 - File output has been altered so that all values fall on the quarter hour and gaps are filled in with null values, marked with an 'N' flag.
March 2003 - Residuals (observed minus predicted sea level values, measured in metres) now included in the file output.
There have been no files outputted for January-October 2004 as the primary channel was malfunctioning.
On 15/02/2012 a new data logger was installed. Tests were carried out to ensure the logger was functioning correctly, resulting in some data being lost.
November 2012 - The file output has been altered to reflect the Contributor name change from Proudman Oceanographic Laboratory to National Oceanography Centre, Liverpool. Also, the Parameter code has been improved and now uses a controlled vocabulary.

Missing and suspect data have been reported on the following day numbers:-

Period Parameter Missing data Suspect data
1990 ASLVBG02 None None
1991 ASLVBG02 None None
1992 ASLVBG02 343-366 None
1993 ASLVBG02 001-084 None
1994 ASLVBG02 None None
1995 ASLVBG02 None None
1996 ASLVBG02 112-114,135-143,217-226,262 None
1997 ASLVBG02 None None
1998 ASLVBG02 314-365 206-208
1999 ASLVBG02 001-130,144 None
2000 ASLVBG02 207-366 None
2001 ASLVBG02 001-223,303-311,347-354 311-317
2002 ASLVBG02 013,022-026,043-044,093-095,288-289,295-302,323,337-341 None
2003 ASLVBG02 017-021,094,239-242,245,252-256,268-284,287-294 149-239,242-245,245-252,256-268,284-287,294-365
2004 ASLVBG02 062-064,289-295,309-310 001-062,064-289,295-309
2005 ASLVBG02 068,138,237-243,250,300-306 None
2006 ASLVBG02 009-011,071-075,095-102,214-219,221,249 None
2007 ASLVBG02 011-015,192-202,300-301,338-340 None
2008 ASLVBG02 None None
2009 ASLVBG02 112-116,322 None
2010 ASLVBG02 069-081 None
2011 ASLVBG02 None 166
2012 ASLVBG02 046 046,266-267
2013 ASLVBG02 None 085
2014 ASLVBG02 227 038,182
2015 ASLVBG02 None 328
2016 ASLVBG02 None 224
2017 ASLVBG02 None 011,013
2018 ASLVBG02 None None
2019 ASLVBG02 None 252
2020 ASLVBG02 None None
2021 ASLVBG02 None 082
2022 ASLVBG02 339 163-176,181,183-184,243
2023 ASLVBG02 254 010-042,045-046,062-112,114-254,254-365
2024 ASLVBG02 032,251 001-032,032-090,097-103,106-108,114-121,126-251,251-366
2025 ASLVBG02 (001-243)
ASLVBG01 (244-)
018,144,167,242
270,307,330
001-018,018-144,144-167,167-242,242-243
244-270,270-307,307-330,330-365
2026 ASLVBG01 063,090,099-100,120,121,137,143 001-063,063-090,091-099,100-120,120-121,121-137,137-143,143-151