Data and Station Information for HARLINGEN

Station Information

Station ID:	25
Latitude:	53.175556
Longitude:	5.409444
Coastline code:	150
Station code:	21
Country:	NETHERLANDS, KINGDOM OF THE
Time span of data:	1865 – 2022
Completeness (%):	100
Date of last update:	19 Jul 2023

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 HARLINGEN.

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

Plot of annual mean sea level data at HARLINGEN.

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: HARL
Nearby Real Time Stations from VLIZ: harl

Station Documentation

Link to RLR information.

Documentation - date unknown

ALL DUTCH METRIC DATA ARE MEASURED TO NAP (NORMAAL AMSTERDAMSCH PEIL)
PRIOR TO 1936 VALUES BASED ON HIGH AND LOW WATERS OR ON 4 OR 8 READINGS/DAY

Documentation added 2011-02-08

Following information received from Douwe Dillingh giving values for NAP up to 2005 and the re-levelled value from 2005 onwards RLR can now be calculated for the Dutch stations. Harlingen is now an RLR station. RLR factors up to 2005 6.907m. From 2005 onwards 6.914m.

Documentation added 2016-01-22

The note above stating that periods of the data are MTL is misleading. Sections of the original data were MTL. However, Pub. Sci. 5 states “For these periods a shallow water correction has been added to the mean heights of high and low water in order to give a mean height of sea-level comparable with those otherwise calculated for other periods.” Thus, a correction to MSL has already been applied.

Data Authority

Servicedesk Data
Rijkswaterstaat
Postbus 556
3000 AN Rotterdam

Data

Data Notes

Extracted from Database

HARLINGEN