GLOSS Station Handbook
Station information sheet
| General | |
| GLOSS number | 103 |
| Station name | Chichijima |
| Country | Japan |
| Time zone | 135E, GMT + 9 hrs |
| Latitude (+ve N) | 27.08333 |
| Longitude (+ve E) | 142.18333 |
| Ocean | Pacific |
| Observation period(s) | 1975-, acoustic since 2006 |
| Responsible country | Japan |
| Authority responsible for tide gauge | Oceanographical Division, Climate and Marine Department, Japan Met. Agency, 3-4, Otemachi- 1, Chiyoda-ku, Tokyo 100, Japan |
| GLOSS contact | Japan |
| Committed to GLOSS | Yes |
| Operational | Yes |
| Location map |  |
| Instrumentation | |
| Float | Yes |
| Pressure | No |
| Bubbler | No |
| Acoustic | Yes |
| Radar | No |
| Data | |
| Digital data | Yes |
| Data acquisition rate | Continuous recording |
| Fast delivery data at UHSLC |   |
| High frequency data at BODC |  |
| High frequency data at UHSLC | |
| Real-time data available | Yes |
| Benchmarks | |
| Tide gauge benchmarks | Japan Met. Agency Benchmark bolt inside tide gauge hut, adjacent to stilling well |
| Benchmark relationships | Tide Gauge Zero (TGZ) = 4.146m below TGBM (from 1971 onwards) |
| Data at PSMSL | |
| Annual MSL (RLR) data | |
| Annual MSL (RLR) plot |  |
| MSL method | Mean of hourly values |
| PSMSL code | 1391 |
| Other relevant codes | UHSLC 047 |
| Additional information | |
| Other relevant information | The 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. station | Chichijima |
| Last updated | 1997-11-20 |
