Data



Data Notes



Extracted from Database

14 Oct 2019

PORT ELIZABETH

Station Information

Station ID: 820
Latitude: -33.951111
Longitude: 25.629722
GLOSS ID: 76
Coastline code: 430
Station code: 88
Country: SOUTH AFRICA
Time span of RLR data: 1978 – 2017
RLR completeness (%): 78
Time span of metric data: 1957 – 2017
Metric completeness (%): 58
Date of last update: 15 May 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 PORT ELIZABETH.

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

Plot of annual mean sea level data at PORT ELIZABETH.

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 GNSS Stations from SONEL: PELB, PLBA
Fast Delivery Data from UHSLC station 184: hourly and daily
Research Quality Data from UHSLC station 184: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Port Elizabeth 430/088 RLR(1985) is 9.4m below BM

Documentation added 1996-08-28

For discussions of MSL changes and extreme sea levels around Namibia and South Africa, see: G.B.Brundrit, S.Afr.J.Mar.Sci.,16,9-17,1995 and S.Searson and G.B.Brundrit, S.Afr.J.of Science, 91,579-588,1995. 1957 1960 values based on 8 readings a day

Documentation added 2006-07-24

Data for 2000 were supplied by BODC. The values were supplied to BODC via the University of Cape Town and so are not being classed as official.

Documentation added 2006-08-07

Following the recent supply of data from the South African Hydrographic Office the data values for the year 2000 have now been revised with the official values.

Documentation added 2009-09-24

Heights of chart datum relative to land levelling
datum LLD(MSL)in South Africa and Namibia: Port Elizabeth
Datum: up to 31st Dec 1978 = -0.838
Datum: 1st Jan 1979 - 31st Dec 1997 = -0.900
Datum: 1st Jan 1998 - 31st Dec 2002 = -1.026
Datum: 1st Jan 2003 onwards = -0.836
Datum is now LAT so unlikely to change. Benchmark PE 1 has been added to the RLR diagram as this is the benchmark referred to in the GLOSS Handbook.

Documentation added 2010-05-11

There appears to be a spike in Nov/Dec 2002. This is possbly real as it appears in several of the S. African stations.

Data Authority

Hydrographic Office
Maritime Headquarters
Private Bag X1
Tokai 7966