Data



Data Notes



Extracted from Database

09 Sep 2019

THESSALONIKI

Station Information

Station ID: 373
Latitude: 40.632542
Longitude: 22.934933
Coastline code: 290
Station code: 51
Country: GREECE
Time span of RLR data: 1969 – 2017
RLR completeness (%): 89
Time span of metric data: 1933 – 2017
Metric completeness (%): 61
Date of last update: 19 Sep 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 THESSALONIKI.

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

Plot of annual mean sea level data at THESSALONIKI.

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: AUT1
Nearby Real Time Stations from VLIZ: thes

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Thessaloniki 290/051 RLR(1981) is 9.2m below BM R16

Documentation added 1993-07-12

Thessaloniki 290/051 RLR(1981) is 9.2m below BM R16

Documentation added 2006-11-28

Whole dataset flagged due to unresolved datum query.

Documentation added 2008-04-09

Since the change in the method of sea level recording from
measuring downwards to the usual measuring upwards the tidal
plot for Thessalonika had appeared in error as there seemed
to be a large upwards jump. Following lengthy correspondence
with the HNHS it transpires that following a datum control
and levelling exercise a correction of +0.34m was applied
to the TGZ. When this correction was applied the data
plot appears to be OK.See Greek letter in reply to the letter of 26th March 2007.

Documentation added 2013-08-13

The Hellenic Navy have recently supplied datum diagrams for each of there stations. Previously used benchmark R 16 does not appear on the new diagram. In consequence the RLR diagram has been re-drawn using benchmark R. As a result the RLR factors have changed.

Data Authority

Hellenic Navy Hydrographic Service
Geographic Policy and International Relations Office
TGN 1040
Athens