Data and Station Information for OWASE

Station Information

Station ID:	1146
Latitude:	34.076389
Longitude:	136.207222
Coastline code:	642
Station code:	136
Country:	JAPAN
Time span of data:	1966 – 2024
Completeness (%):	93
Date of last update:	21 Mar 2025

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 OWASE.

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

Plot of annual mean sea level data at OWASE.

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 1991-06-11

Owase 642/136 RLR(1976) is 11.9m below Attached BM

Documentation added 1994-07-15

See comments on sea level variability given for Maisaka (642/126).

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 approx. 70km east of the Oshika Peninsula of Tohoku. It was the most powerfull earthquake to hit Japan and triggered a tsunami with waves up to 40.5m high travelling up to 10km inland.
This station was previously flagged. However overall the profile looks reasonable - the station flag has now been removed.

Data Authority

Japan Meteorological Agency
3-6-9 Toranomon, Minato City
Tokyo

Data

Data Notes

Extracted from Database

OWASE