GLOSS Station Handbook

GLOSS Station Handbook – Naha

The GLOSS Station Handbook is currently being re-designed and upgraded.

Until a new version is available, the tide gauge station list below from the last version of the Handbook provides links to further details about each tide gauge in the GLOSS Core Network. Click the GLOSS number buttons to view the information. Click column headings to sort the table.


Station information

Gloss number81
Station nameNaha
Time zone135E, GMT + 9 hrs
Latitude (+ve N)26.21666
Longitude (+ve E)127.66666
Observation periods1966-
Responsible countryJapan
Authority responsible for tide gaugeOceanographical Division, Climate and Marine Department, Japan Met. Agency, 3-4, Otemachi- 1, Chiyoda-ku, Tokyo 100, Japan
GLOSS contactJapan
Committed to GLOSSYes
Location map
Digital dataYes
Aditional parametersSea temperature
Data acquisition rateContinuous recording
Fast delivery data at UHSLCData 355 File format
High frequency data at BODCData 081 Document 61002 Document 60996
High frequency data at UHSLCData 355a Document 355a File format
Real-time data availableYes
Real-time data transmitted to GLOSS Fast Centre
Additional parameters (real-time)None
Tide gauge benchmarkJapan Met. Agency Benchmark bolt inside tide gauge hut adjacent to stilling well
Benchmark relationshipsTide Gauge Zero (TGZ) = 5.453m below TGBM (from 1966 onwards)
Auxiliary benchmarksTide Station BM 6.342m above Okinawa height standard (1997).
Data at PSMSL
Annual MSL (RLR) dataRLR 1151
Annual MSL (RLR) plot
MSL methodMean of hourly values
PSMSL code1151
Other relevant codesUHSLC 355
Additional information
Other relevant informationThe TGBM is on top of the stilling well. Another benchmark is near the station which is used to decide the height of the TGBM and monitor the height of the tide station. This second benchmark is levelled in to the nearest first class benchmark which is part of the network operated by the Geographical Survey Institute, Ministry of Construction. Heights of benchmarks are described as above Tokyo Peil (TP).
Nearest Met. stationOkinawa
Last updated20 November 1997