GLOSS Station Handbook

GLOSS Station Handbook – Pohnpei, Caroline Is.

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 number115
Station namePohnpei, Caroline Is.
CountryFed. Micronesia
Time zone165E, GMT + 11hrs
Latitude (+ve N)6.59
Longitude (+ve E)158.15
Observation periods1974-
Responsible countryU.S.A.
Authority responsible for tide gaugeDr. M. Merrifield, University of Hawaii, Dept. of Oceanography, 1000 Pope Road MSB 307, Honolulu, Hawaii 96822, U.S.A.
GLOSS contactMicronesia
Committed to GLOSSYes
Location map
Digital dataYes
Data acquisition rate15 minutes, filtered to hourly values
Fast delivery data at UHSLCData 001 File format
High frequency data at BODCData 115a Data 115b Document 64351 Document 57158
High frequency data at UHSLCData 001a Data 001b Document 001a Document 001b File format
Real-time data availableYes
Real-time data transmitted to GLOSS Fast Centre
Additional parameters (real-time)None
Tide gauge benchmarkUSGS 1: standard disk, stamped 'No.1 1969', set in concrete deck at 3ft north of Net P Pier Warehouse (established 1969)
Benchmark relationshipsDatum of data is tide staff zero
Datum is 2.477m below USGS 1 (Apr 1990)
Datum is 2.903m below UH B-1 (Apr 1990)
Datum is 2.518m below UH B-2 (Apr 1990)
Auxiliary benchmarksUH B-1: standard silver disk set in concrete 1.5 ft right of tide gauge house door (established Apr. 1981)
UH B-2: standard silver disk set in concrete 21 ft from SE corner of gauge house (established Apr. 1981)
UH B3: standard silver disk set in concrete 50 ft from SE corner of gauge house (established Apr. 1981)
Data at PSMSL
Annual MSL (RLR) dataRLR 1370
Annual MSL (RLR) plot
MSL methodaverage of daily values
PSMSL code1370
Other relevant codesUHSLC 001
Additional information
Other relevant informationBackup gauge on site: Handar encoder ADR (Nov 82-)
Daily values calculated using 119-point convolution filter (Bloomfield, 1976) centred on noon applied to the hourly data with respective periods of the 95, 50 and 5% amplitude points at 124.0, 60.2 and 40.2 hours.
PSMSL also hold data from another gauge 710/030.
Last updated5 December 1993