Data



Data Notes



Extracted from Database

20 May 2019

ST. MARKS

Station Information

Station ID: 1136
Latitude: 30.066667
Longitude: -84.183333
Coastline code: 940
Station code: 47
Country: UNITED STATES
Time span of data: 1965 – 1975
Completeness (%): 73
Date of last update: 01 Jan 1980

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 ST. MARKS.

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

Plot of annual mean sea level data at ST. MARKS.

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.

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

St Marks 940/047 RLR(1967) is 8.1m below BM6

Documentation added 1993-07-12

St Marks 940/047 RLR(1967) is 8.1m below BM6

Documentation added 1993-07-29

Many stations on the Gulf coast have large values for September 1961.

Documentation added 2012-02-09

St. Marks is now an Historic Station. Last data received was that for 1975.
Although there are entries for both St. Marks Lighthouse and St. Marks City and
the latter does list an earlier benchmark 6 the reference to this and the TGZ
does not tally with the value from the original RLR diagram.

Data Authority

N.O.A.A. / N.O.S.
N/oes33, Ssmc4, Room 6531
1305 East-West Highway
Silver Spring,
MD 20910