GLOSS Station Handbook

Station information sheet

GLOSS number144
Station name

Pago Pago, American Samoa

Time zone165W, GMT - 11hrs
Latitude (+ve N)-14.28333
Longitude (+ve E)-170.68333
Observation period(s)1948-, upgrade due 2007
Responsible countryU.S.A.
Authority responsible
for tide gauge
NOAA, National Ocean Service, 1305 East-West Highway, Silver Spring, MD 20910-3281, USA
GLOSS contactUSA
Committed to GLOSSYes
Location mapView location map for GLOSS station Pago Pago, American Samoa
Digital dataYes
Additional 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 UHSLCDownload h056.dat from UHSLC   Format documentation for UHSLC data
High frequency data at BODCDownload from BODC   View Pago Pago, American Samoa site history   View BODC document #83902  
High frequency data at UHSLCDownload from UHSLC   Download documentation qa056a.dmt from UHSLC   Format documentation for UHSLC data
Data held at national organisationYes
Real-time data availableYes
Real-time data transmitted
to GLOSS Fast Centre
Real-time data plots from UHSLC
Additional parameters (real-time)Sea surface temperature, density, barometric pressure
Tide gauge benchmarksBenchmark 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) dataDownload annual MSL (RLR) data for Pago Pago, American Samoa
Annual MSL (RLR) plotView annual MSL (RLR) plot for Pago Pago, American Samoa
PSMSL code539
Other relevant codesUHSLC 056 
Additional information 
Other relevant informationGPS nearby
Last updated1993-12-05