GLOSS Station Handbook

GLOSS Station Handbook – Sitka, AK

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 number154
Station nameSitka, AK
Time zone135W, GMT - 9hrs
Latitude (+ve N)57.05
Longitude (+ve E)-135.33333
Observation periods1938-, being upgraded 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
Data acquisition rate6 minute intervals
Fast delivery data at UHSLCData 559 File format
High frequency data at UHSLCData 559a Document 559a 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 benchmarkNOS tidal benchmark survey disk stamped 'TIDAL 26 1974' set in a rock outcrop south of the Russian Block House #1 off of Seward Street in Sitka, AK.
Benchmark relationshipsTGBM = 40.95 feet above mean lower low water (1960-1978 epoch)
TGBM = 35.70 feet above mean sea level (1960-1978 epoch)
TGBM = 31.81 feet above mean high water (1960-1978 epoch)
Auxiliary benchmarks8 1924 TIDAL BM
1600K 1978 1600 J 1977
16 1941 1600 L 1982
22 1965 No stamping 1
TIDAL 24 1974 TIDAL 25 1974
Site inspection 1993 states 'levels agree with history' and 'BM City continues to show movement over years'
Data at PSMSL
Annual MSL (RLR) dataRLR 426
Annual MSL (RLR) plot
PSMSL code426
Other relevant codesUHSLC 559
Additional information
Last updated11 December 2002