Data


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Data Notes



Extracted from Database

13 Oct 2025

TUMACO

Station Information

Station ID: 639
Latitude: 1.833333
Longitude: -78.733333
GLOSS ID: 171
Coastline code: 842
Station code: 21
Country: COLOMBIA
Time span of RLR data: 1953 – 1969
RLR completeness (%): 100
Time span of metric data: 1951 – 2014
Metric completeness (%): 84
Date of last update: 04 Nov 2015

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 TUMACO.

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

Plot of annual mean sea level data at TUMACO.

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: TUMA
Nearby Real Time Stations from VLIZ: tumc2, tumc
Research Quality Data from UHSLC station 303: hourly and daily

Station Documentation

Link to RLR information.

Documentation added 1992-11-30

December 1989 an earthquake caused a vertical land submergence or apparent sea level rise of approximately 15.2cm
1953-90 Data revised,November 1992

Documentation added 1993-04-19

The Colombian earthquake of 12 December 1979 caused the coast around Tumaco (station code 842/021) to subside up to 1.6m - see Herd et al. 1979, Science, 211, 441-445.

Documentation added 1993-04-23

1988-92 data from several tide gauges as follows:Jan 88-Sept 89 Stevens,Dec 89-Nov 90 ADR Digital,Dec 90-Oct 91 Fuess,Nov 91-June 92 ADR Digital,July Nov 92 Seba,Dec 92 onwards Digital

Documentation added 1993-05-06

Datum shift queries in 1973,1974 and 1984

Documentation added 1993-05-06

Datum shift in 1990

Documentation added 1993-07-12

Tumaco 842/021 RLR(1964) is 10.3m below BM1

Documentation added 2004-10-05

Data from 1997 on received from University of Hawaii Sea Level Center

Documentation added 2012-01-18

Using data from the latest UHSLC JASL cd the 'METRIC' dataset has been updated. Data values for 2001-2011 have been added to the dataset. The whole dataset has several datum shifts in it.

Documentation added 2015-11-04

Updated JASL data for 2011-2014 added to the 'Metric' plot.

Data Authority

I.D.E.A.M.
Carrera 5a, No.15-80 Piso 18
Aa 18633 Santafe de Bogota Dc

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