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Research Expedition to the Gulf of Alaska - TN263
Research Vessel Thomas G. Thompson
Gulf of Alaska - Integrated Ecosystem Research

April 30 - May 21, 2011

Updated:  May 23, 2011

Welcome to the web site for our spring Gulf of Alaska research cruise. The ship
R/V Thomas G. Thompson
R/V Thomas G. Thompson is our platform for three weeks while we measure ocean conditions and look at the ecosystem of the Gulf in near-shore, shelf and shelf-slope areas of Southeast Alaska.  Our activities fit into a larger multi-year project addressing the interrelationship of climate, oceanography, fisheries, ocean biology,
ocean chemistry, and seabirds in a changing ecosystem.  This spring expedition is funded through the GOA-IERP program in conjunction with NOAA's NPCREP program, and funded by the North Pacific Research Board and NOAA.

        button - link to view images
Operations primarily consist of zooplankton sampling, hydrographic measurements,
Chief Scientist, Nancy Kachel
water sampling and iron sampling.  We will conduct bongo tows, Neuston net tows, and MOCNESS tows.  Hydrography includes digital profiles of temperature, salinity (calculated from temperature and conductivity), pressure, chlorophyll and oxygen. We also take CTD water samples for phytoplankton, zooplankton, nutrient and oxygen analysis.  We are sampling at pre-defined "transect" lines of stations in the area.
along-track temperature data, Gulf of Alaska, May 2011 Along-track salinity data, SE Alaska, Gulf of Alaska Along-track chlorophyll, SE Alaska, Gulf of Alaska
Near surface, along-track data from R/V Thompson May 2011: temperature, salinity, chlorophyll


A Short Glossary
NPRB - North Pacific Research Board
GOA - Gulf of Alaska
IERP - Integrated Ecosystem Research Program
NOAA - National Oceanic and Atmospheric Administration
NPCREP - North Pacific Climate Regimes and Ecosystem Productivity
MOCNESS - Multiple Opening and Closing Net, with an Environmental Sensing System

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