Data



Data Notes



Extracted from Database

11 Mar 2019

TOKYO III

Station Information

Station ID: 1545
Latitude: 35.648611
Longitude: 139.77
Coastline code: 642
Station code: 69
Country: JAPAN
Time span of data: 1982 – 2018
Completeness (%): 98
Date of last update: 12 Feb 2019

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 TOKYO III.

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

Plot of annual mean sea level data at TOKYO III.

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 2001-02-23

Tokyo III 642/069 RLR(1993) is 10.0m below Attached BM

Documentation added 2002-03-26

Tokyo III replaced Tokyo II April 1982.

Documentation added 2003-11-20

Datum 1996 is 1.852m below Tokyo Peil. Datum 1999 is 1.853m below Tokyo Peil. Datum 2001 is 1.854m below Tokyo Peil.

Documentation added 2012-02-22

A massive earthquake magnitude 9.0 occurred at 14.46 JST (05.46 UTC) on Friday 11th March 2011 with the epicentre situated approx. 70km east of the Oshika Peninsula of Tohoku. It was the largest earthquake ever to hit Japan and triggered a tsunami with waves of up to 40.5m travelling inland up to 10km.

Data Authority

Marine Department
Japan Meteorological Agency
Ote-machi, Chiyoda-ku
Tokyo