Data



Data Notes



Extracted from Database

20 May 2019

PORTBURY

Station Information

Station ID: 2011
Latitude: 51.5
Longitude: -2.728472
Coastline code: 170
Station code: 170
Country: UNITED KINGDOM
Time span of data: 2009 – 2017
Completeness (%): 69
Date of last update: 06 Jun 2018

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Tide Gauge Data

Plot of monthly mean sea level data at PORTBURY.

Link to larger image of monthly data plot.
Download monthly mean sea level data.

Plot of annual mean sea level data at PORTBURY.

Link to larger image of annual data plot.
Download annual mean sea level data.

Download metric sea level data. Use only with extreme caution.
NOTE: If some of the data are red in the plots above, the 'flag for attention' is set. Please see the documentation below.

Additional Data Sources (guide to additional data sources)

Nearby Real Time Stations from VLIZ: sscr, avon

Station Documentation

Link to RLR information.

Documentation added 2001-01-02

Recent work on vertical land movements in the UK can be found from the University of Nottingham web site: http://ukcogr.iessg.nottingham.ac.uk/~eosi/

Documentation added 2009-07-30

Portbury is a replacement gauge for Avonmouth. Although Avonmouth is still operational the jetty that the tide gauge stands on is unsafe and so the gauge can no longer be maintained.
Portbury TGBM is a brass bolt quay edge adjacent to the tide gauge. Benchmark height 9.226m Grid ref of the new gauge is ST 4953 7815 First monthly mean for Portbury is that for December 2008.

Documentation added 2014-07-04

TGI visited the site on 21.10.2013 to carry out general maintenance. During November it was noted that the gauge was recording ~30 high on the falling tide. From 14.12.2013 the power supply to the tide gauge was out of commission. On enquiry the port confirmed that the cable feed to the gauge was faulty and would not be repaired until the New Year.

Documentation added 2015-05-06

A battery powered compressor was installed on 13.01.14 mains power was re-instated on 28.01.14.On 16.01.14 a faulty compressor battery was replaced and on the 28th of the month the mains cabling fault was repaired and a new mains compressor installed.On the 25.02.14 a faulty compressor was replaced. On 11.06.14 general maintenance was carried out while on 20.08.14 a dual GSM unit was installed. No levelling was carried out during 2014.

Data Authority

British Oceanographic Data Centre
National Oceanography Centre
Joseph Proudman Building, 6 Brownlow Street
Liverpool
L3 5DA