Data



Data Notes



Extracted from Database

01 Jul 2019

FREEPORT

Station Information

Station ID: 725
Latitude: 28.948333
Longitude: -95.308333
Coastline code: 940
Station code: 6
Country: UNITED STATES
Time span of data: 1954 – 2008
Completeness (%): 97
Date of last update: 27 May 2009

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 FREEPORT.

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

Plot of annual mean sea level data at FREEPORT.

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: DWI1

Station Documentation

Link to RLR information.

Documentation added 1991-06-11

Freeport 940/006 RLR(1973) is 11.1m below BMR455

Documentation added 1993-07-29

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

Documentation added 1994-07-14

For a discussion of submergence near to Galveston, Freeport and Sabine Pass, see Emery and Aubrey (Sea Levels, Land Levels and Tide Gauges), 1991, Springer-Verlag, page 39.

Documentation added 2015-02-23

NOAA website confirms this station was removed in March 2008

Data Authority

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