Station Information

Station ID: 174
Latitude: 11.8
Longitude: 99.816667
Coastline code: 600
Station code: 21
Time span of RLR data: 1940 – 2022
RLR completeness (%): 97
Time span of metric data: 1910 – 2022
Metric completeness (%): 76
Date of last update: 15 Sep 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.

Additional Data Sources (guide to additional data sources)

Fast Delivery Data from UHSLC station 328: hourly and daily
Research Quality Data from UHSLC station 328: hourly and daily

Station Documentation

Link to RLR information.

Documentation - date unknown

Data for 1910-1915 supplied by the Royal Thai Navy Bangkok

Documentation added 1991-06-11

Ko Lak 600/021 RLR(1981) is 8.4m below BM A

Documentation added 2009-07-01

Although the data for Ko Lak 2008 was supplied directly from The Hydrographic Dept. of the Royal Thai Navy the missing days information was erroneous. When queried with them they insisted
that the figures were correct (missing days included 720,95 days) so figures were obviously wrong. Decision was taken to use the missing day information for 2008 from the JASL CD.

Data Authority

Oceanographic Division
Hydrographic Department
Royal Thai Navy
222 Rimtang-Rodfai-kao Road
Bangna, Bangkok 10260