Station name | Sheerness |
---|---|
Country | UK |
Latitude of measuring point | 1973 onwards: 51° 26' 32.0" N
1963-1973: 51° 26' 44" N 1962: 51° 27' N 1955-1961: 51° 26' 35" N |
Longitude of measuring point | 1973 onwards: 00° 44' 35.0" E
1963-1973: 00° 44' 42.5" E 1962: 00° 45' E 1955-1961: 00° 45' 00" E |
OS grid ref. of measuring point | TQ 9073 7504 |
Datum reference | All data refer to Admiralty Chart Datum (ACD)
ACD = ODN -2.90m |
Time reference | GMT (hours 00-23) |
Contributor | Environment Agency Anglian Regional Office,
Kingfisher House, Goldhay Way, Orton Goldhay, Peterborough, Cambridgeshire, PE2 5ZR |
Instrument type | 1955 - Lege gauge installed on Cornwallis Jetty.
1962 - Munro gauge installed at Garrison Point. 1963 - Munro gauge resited 22.5m south of previous location. 17/04/1973 - Munro gauge disconnected for maintainance. 17 - 19/04/1973 - Temporary Munro gauge used in Ro/Ro hut. 19/04/1973 - Munro gauge reconnected at Garrison Point. 21/05/1973 - New Munro gauge installed on Ro/Ro Jetty. 1980 - Ott pneumatic gauge replaced Munro gauge. 1983 - Aanderra gauge installed, to replace Ott gauge. 1986 - Dataring Bubbler system installed. |
Site of measuring point | Below tide gauge building |
Position of tide gauge building | TQ 9074 7542 - Brick tide gauge building on jetty, west side of Garrison Point |
Observational periods | 1952,1958,1965-1975,1980-2020 |
Benchmark | OS grid ref. | Description | Height above ODN (m) |
---|---|---|---|
TGBM | TQ 9080 7549 | Flush bracket 11859, Garrison Point Fort, south angle, south west building. | 4.632 |
Aux1 | TQ 9133 7523 | Flush bracket G.4790, on house, north west angle, north face. | 4.486 |
Aux2 | TQ 9115 7533 | Wall on south west side of road, north east angle. | 3.339 |
Aux3 | TQ 9147 7516 | PA Bolt disused church, south west side of road, east face, north east angle. | 4.413 |
NBM | TQ 9073 7542 | Rivet curb W side of jetty opp. T.G. Building | 5.275 |
NRABM | TQ 9074 7542 | Bolt SE corner of jetty | 5.280 |
ODN = Ordnance Datum Newlyn
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 |
---|---|---|---|
1952 | ASLVZZ01 | 100 | 60 minutes |
1958 | ASLVZZ01 | 100 | 60 minutes |
1965 | ASLVZZ01 | 90 | 60 minutes |
1966 | ASLVZZ01 | 98 | 60 minutes |
1967 | ASLVZZ01 | 100 | 60 minutes |
1968 | ASLVZZ01 | 35 | 60 minutes |
1969 | ASLVZZ01 | 66 | 60 minutes |
1970 | ASLVZZ01 | 86 | 60 minutes |
1971 | ASLVZZ01 | 100 | 60 minutes |
1972 | ASLVZZ01 | 100 | 60 minutes |
1973 |
ASLVZZ01 ASLVZZ01 |
39 (January to May) 61 (May to December) |
60 minutes |
1974 | ASLVZZ01 | 99 | 60 minutes |
1975 | ASLVZZ01 | 79 | 60 minutes |
1980 | ASLVZZ01 | 33 | 60 minutes |
1981 | ASLVZZ01 | 77 | 60 minutes |
1982 | ASLVZZ01 | 99 | 60 minutes |
1983 | ASLVZZ01 | 84 | 60 minutes |
1984 | ASLVZZ01 | 100 | 60 minutes |
1985 | ASLVZZ01 | 99 | 60 minutes |
1986 |
ASLVZZ01 ASLVBG02 |
79 (January to October) 19 (October to December) |
60 minutes |
1987 | ASLVBG02 | 91 | 60 minutes |
1988 | ASLVBG02 | 100 | 60 minutes |
1989 | ASLVBG02 | 100 | 60 minutes |
1990 | ASLVBG02 | 100 | 60 minutes |
1991 | ASLVBG02 | 100 | 60 minutes |
1992 | ASLVBG02 | 100 | 60 minutes |
1993 | ASLVBG02 | 100 | 15 minutes |
1994 | ASLVBG02 | 99 | 15 minutes |
1995 | ASLVBG02 | 100 | 15 minutes |
1996 | ASLVBG02 | 98 | 15 minutes |
1997 | ASLVBG02 | 98 | 15 minutes |
1998 | ASLVBG02 | 100 | 15 minutes |
1999 | ASLVBG02 | 98 | 15 minutes |
2000 | ASLVBG02 | 95 | 15 minutes |
2001 | ASLVBG02 | 97 | 15 minutes |
2002 | ASLVBG02 | 83 | 15 minutes |
2003 | ASLVBG02 | 99 | 15 minutes |
2004 | ASLVBG02 | 100 | 15 minutes |
2005 | ASLVBG02 | 100 | 15 minutes |
2006 | ASLVBG02 | 98 | 15 minutes |
2007 | ASLVBG02 | 94 | 15 minutes |
2008 | ASLVBG02 | 97 | 15 minutes |
2009 | ASLVBG02 | 99 | 15 minutes |
2010 | ASLVBG02 | 99 | 15 minutes |
2011 | ASLVBG02 | 100 | 15 minutes |
2012 | ASLVBG02 | 99 | 15 minutes |
2013 | ASLVBG02 | 100 | 15 minutes |
2014 | ASLVBG02 | 100 | 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 | January | 15 minutes |
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.
In October 1986 the Dataring system was installed. The bubbler gauge (ASLVBG02) replaced the Ott gauge (ASLVZZ01). There is a gap in the file where the gauge was changed.
1993 - The processing of the 1993 file has left a null value at the start of the file (00:00 hours 01/01/1993). This is due to the sampling interval changing from 60 to 15 minutes and the first data point being too far from 00:00 to interpolate.
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.
On 27/01/2012 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 |
---|---|---|---|
1952 | ASLVZZ01 | None | 012,018,028-030,040-041,044,047,058-059,092,148-149,185-187,190,282,286,300,315,336-337,348-349 |
1958 | ASLVZZ01 | None | 010,030,036,052,082,085,102,104,112,116,171-174,208,211-218,224,263-265,278,280,283,316,339,349,363 |
1965 | ASLVZZ01 | 305-340 | 023,144-150,219,277-282 |
1966 | ASLVZZ01 | 138-139,345,360-363 | 001,033,232,270-271,319 |
1967 | ASLVZZ01 | None | 265,274,329,349 |
1968 | ASLVZZ01 | 127-366 | None |
1969 | ASLVZZ01 | 001-125 | None |
1970 | ASLVZZ01 | 313-365 | 124-125,176,238-241,267-271 |
1971 | ASLVZZ01 | None | 036-038,065-067,228-230,365 |
1972 | ASLVZZ01 | None | 054-058,093,149,305,366 |
1973 | ASLVZZ01 | None | 247,254 |
1974 | ASLVZZ01 | 007-008,288-289 | 304,364-365 |
1975 | ASLVZZ01 | 094,194-195,293-365 | 213-214 |
1980 | ASLVZZ01 | 001-247 | None |
1981 | ASLVZZ01 | 063-147 | None |
1982 | ASLVZZ01 | 232-233 | None |
1983 | ASLVZZ01 | 061,146-201 | None |
1984 | ASLVZZ01 | None | None |
1985 | ASLVZZ01 | 111-114 | None |
1986 |
ASLVZZ01 ASLVBG02 |
064-066,261-263,294-297 None |
None None |
1987 | ASLVBG02 | 004,289-321 | 289 |
1988 | ASLVBG02 | None | None |
1989 | ASLVBG02 | None | None |
1990 | ASLVBG02 | None | None |
1991 | ASLVBG02 | None | None |
1992 | ASLVBG02 | None | None |
1993 | ASLVBG02 | None | None |
1994 | ASLVBG02 | 328-329, 340-342 | None |
1995 | ASLVBG02 | None | None |
1996 | ASLVBG02 | 117-123, 137 | 075, 077, 079 |
1997 | ASLVBG02 | 323-328 | None |
1998 | ASLVBG02 | None | None |
1999 | ASLVBG02 | 264-269 | None |
2000 | ASLVBG02 | 230-236, 249-256, 263-269, 340 | 064-066 |
2001 | ASLVBG02 | 158, 212-221, 263-264 | 082-083, 296-365 |
2002 | ASLVBG02 | 043-048, 128-165, 190-201, 232-235, 240-245, 322 | 001-043 |
2003 | ASLVBG02 | 245 | None |
2004 | ASLVBG02 | None | None |
2005 | ASLVBG02 | None | None |
2006 | ASLVBG02 | 040,061,070-072,075,080 | None |
2007 | ASLVBG02 | 199-205,282-297 | 183-199,299-365 |
2008 | ASLVBG02 | 121-122,268-275,341 | 001-121,267,275-283 |
2009 | ASLVBG02 | 106 | 032-218,254-259,283-285,287-301,309-318,322-326,328-365 |
2010 | ASLVBG02 | 153 | 001-183,187-196,200-365 |
2011 | ASLVBG02 | None | 001-365 |
2012 | ASLVBG02 | 026,031 | 001-026,026-031,031-366 |
2013 | ASLVBG02 | None | 001-365 |
2014 | ASLVBG02 | None | 001-365 |
2015 | ASLVBG02 | None | 001-159,189-193,195-212,217-365 |
2016 | ASLVBG02 | None | 001-366 |
2017 | ASLVBG02 | None | 001-297,333-365 |
2018 | ASLVBG02 | None | 001-018,030,047-052,073-075,079-159,166-176,189-206,208-365 |
2019 | ASLVBG02 | None | 001-365 |
2020 | ASLVBG02 | None | 001-018,027-028,031 |