GLOSS Station Handbook

GLOSS Station Handbook – Pago Pago, American Samoa

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 number144
Station namePago Pago, American Samoa
Time zone165W, GMT - 11hrs
Latitude (+ve N)-14.28333
Longitude (+ve E)-170.68333
Observation periods1948-, upgrade due 2007
Responsible countryU.S.A.
Authority responsible for tide gaugeNOAA, National Ocean Service, 1305 East-West Highway, Silver Spring, MD 20910-3281, USA
GLOSS contactUSA
Committed to GLOSSYes
Location map
Digital dataYes
Aditional parametersSea surface temperature, density, barometric pressure
Data acquisition rateDigital gauge: 6 minute interval (after 1977)
Analog gauge: hourly heights (before 1977)
Fast delivery data at UHSLCData 056 File format
High frequency data at BODCData 144 Document 57454 Document 83902
High frequency data at UHSLCData 056a Document 056a File format
Data held at national organisationYes
Real-time data availableYes
Real-time data transmitted to GLOSS Fast Centre
Additional parameters (real-time)None
Tide gauge benchmarkBenchmark M 1983 is the primary benchmark stamped '0000 M 1983' set in a bedrock outcrop at the southernmost corner of the wall surrounding the Government Estate.
Benchmark relationshipsTGBM is 13.20ft above Tide Gauge Zero (Station Datum)
NOAA Chart Datum (MLLW) is 2.48ft above Station Datum
Mean Sea Level (1960-1978) is 3.83ft above Station Datum
Auxiliary benchmarks8 additional benchmarks are levelled to the TGBM and the Tide Station on a yearly basis (BM K, BM 1, BM 13, BM 14, BM N, BM 10, BM P, BM Q).
New benchmarks established (July 1993) BMs R, S, T, U and V.
Data at PSMSL
Annual MSL (RLR) dataRLR 539
Annual MSL (RLR) plot
PSMSL code539
Other relevant codesUHSLC 056
Additional information
Other relevant informationGPS nearby
Last updated5 December 1993