List of tide stations of the Japanese Imperial Land Survey

 Data are accessible for those recorded at these stations up to 1924. The file format is text (.day, .mon, .tdb). It will be downloaded automatically depending on the browser settings, so please be careful.
 

No.	Tide station	Daily mean sea level				Monthly mean sea level	Annual mean sea level
1	Ayukawa	1894-1899	1900-1909	1910-1919	1920-1924	1894-1924	1894-1924
2	Kushimoto	1894-1899	1900-1909	1910-1919	1920-1924	1894-1924	1894-1924
3	Fukahori	1894-1899	1900-1909	1910-1919	1920-1924	1894-1924	1894-1924
4	Sotoura	1894-1899	1900-1909	1910-1919	1920-1924	1894-1924	1894-1924
5	Iwasaki	1894-1899	1900-1909	1910-1919	1920-1924	1894-1924	1894-1924
6	Hanasaki	1896-1899	1900-1909	1910-1919	1920-1924	1896-1924	1896-1924

*The numbers of the tide stations denote the order of the accompanying stone marker.
 

No.	Tide station	Latitude	Longitude	Type of tide gauge	Tide datum plane	Height of the fixed point	Year of establishment	Map
1	Ayukawa	38-18N	141-30E	Kelvin	5.000m	---	June 1901	Click here
2	Kushimoto	33-28N	135-47E	Kelvin	6.000m	---	May 1895	Click here
3	Fukahori	32-41N	129-49E	Kelvin	5.000m	---	Apr. 1895	Click here
4	Sotoura	34-54N	132-05E	Kelvin	4.000m	---	July 1895	Click here
5	Iwasaki	40-35N	139-55E	Kelvin	5.000m	---	Sep. 1896	Click here
6	Hanasaki	43-17N	145-35E	Kelvin	5.000m	---	Nov. 1895	Click here

 

• The values of latitude, longitude and altitude are the values recorded at that time.
• Method for calculating tidal height: Tidal height = height of the fixed point - constant of the tide datum plane + tide level