Resources

GLOSS Station Handbook

Station information sheet

General                                  
GLOSS number103
Station name

Chichijima

CountryJapan
Time zone135E, GMT + 9 hrs
Latitude (+ve N)27.08333
Longitude (+ve E)142.18333
OceanPacific
Observation period(s)1975-, acoustic since 2006
Responsible countryJapan
Authority responsible
for tide gauge
Oceanographical Division, Climate and Marine Department, Japan Met. Agency, 3-4, Otemachi- 1, Chiyoda-ku, Tokyo 100, Japan
GLOSS contactJapan
Committed to GLOSSYes
OperationalYes
Location mapView location map for GLOSS station Chichijima
Instrumentation 
FloatYes
PressureNo
BubblerNo
AcousticYes
RadarNo
Data
Digital dataYes
Data acquisition rateContinuous recording
Fast delivery data at UHSLCDownload h047.dat from UHSLC   Format documentation for UHSLC data
High frequency data at BODCDownload g103.zip from BODC   View Chichijima site history   View BODC document #57890  
High frequency data at UHSLCDownload h047a.zip from UHSLC   Download documentation qa047a.dmt from UHSLC   Format documentation for UHSLC data
Real-time data availableYes
Benchmarks 
Tide gauge benchmarksJapan Met. Agency Benchmark bolt inside tide gauge hut, adjacent to stilling well
Benchmark relationshipsTide Gauge Zero (TGZ) = 4.146m below TGBM (from 1971 onwards)
Data at PSMSL 
Annual MSL (RLR) dataDownload annual MSL (RLR) data for Chichijima
Annual MSL (RLR) plotView annual MSL (RLR) plot for Chichijima
MSL methodMean of hourly values
PSMSL code1391
Other relevant codesUHSLC 047
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. stationChichijima
Last updated1997-11-20