Project Description

Located at the mouth of Resurrection Bay near Seward, Alaska, temperature and salinity versus depth profiles have been taken at oceanographic station GAK1 since December, 1970. This multi-decade time series is one of the longest running oceanographic time series in the North Pacific. Long-term means of temperature and density at selected depths show the annual cycle of these two water properties. Monthly mean profiles at the standard depths are shown here, of temperature and salinity. Anomalies show interannual variation in the thermohaline structure at GAK1. Salinity, not temperature, is the primary variable that drives the density here in the northern Gulf of Alaska. The annual cycle of salinity closely follows that of density at all depths. GAK1 is the station closest to shore on the Seward Line transect of hydrographic stations, which extends approximately 230 km to the southeast of GAK1. For reference, we provide Gulf of Alaska a large-scale look at the surface current field, annual precipitation rates, and a view of the topographic/bathymetric relief.

Research Team

Principal Investigator

picture of Thomas Weingartner

Thomas Weingartner

Professor Emeritus
  • Physical Oceanography
  • Physical oceanography of Alaskan continental shelves and slopes.
  • Interdisciplinary marine research
  • Wind- and buoyancy-forced shelf circulation systems
(907) 474-7993
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Co-Principal Investigator

picture of Seth Danielson

Seth Danielson

Associate Professor
  • Continental shelf circulation processes
  • Data processing and analysis
  • Atmosphere-ocean interactions
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Research Team

James Kelley

Project Funding

Multiple funding sources
Start Date: 1970-12-00 End Date: 0000-00-00

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