Data and Station Information for TAN-NOWA

Station Information

Station ID:	817
Latitude:	34.338889
Longitude:	135.178056
Coastline code:	643
Station code:	17
Country:	JAPAN
Time span of data:	1957 – 2023
Completeness (%):	96
Date of last update:	04 Mar 2024

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 TAN-NOWA.

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

Plot of annual mean sea level data at TAN-NOWA.

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

Tan-nowa 643/017 RLR(1976) is 9.1m below Attached BM

Documentation added 1993-07-12

Tan-nowa 643/017 RLR(1976) is 9.1m below Attached BM

Documentation added 2003-11-20

Datum 1998 is 1.848m below Tokyo Peil.

Documentation added 2011-02-24

Buddy checked with both Sumoto and Osaka compares well.

Documentation added 2012-02-21

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 powerful known earthquake to hit Japan triggering a
tsunami with waves up to 40.5m and travelling up to 10km inland.

Data Authority

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

Data

Data Notes

Extracted from Database

TAN-NOWA