RISE (River Influences on Shelf Ecosystems) is a 5-year
interdisciplinary study of the Columbia River plume, funded by the Coastal Ocean
Program of the National Science Foundation.
The Columbia River brings buoyant fresh water to the
coast, along with dissolved silicate and iron, crucial to phytoplankton growth.
RISE is a group of 12 scientists from different ocean disciplines: biology,
chemistry, and physics, working together to explore how the river plume modifies biological
productivity along the Washington and Oregon continental shelves. We have
four major research cruises planned in 2004-2006, each using two vessels and
lasting over three weeks. We make simultaneous measurements of water
chemistry, phytoplankton growth and grazing rates, zooplankton populations, water currents, and
turbulent mixing. These are combined with data from satellites, radar, and
moorings, as well as detailed numerical simulations, to develop a deeper
understanding of this important ecosystem. (Pt. Sur photo Aaron Raciot)

Satellite image of
regional Chlorophyll distribution. (R. Kudela)
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Drifter tracks showing surface water paths on
different days. (B. Hickey and R. McCabe)
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Satellite SAR image of surface
waves marks the plume front near the river mouth. (D. Jay)
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Wave field at the plume front (D.
Jay)
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Diatom Chain (E. Lessard)
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Links to related programs:
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CoOP
Coastal Ocean Program
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COAST Coastal
Ocean Advances in Shelf Transport
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WEST Wind
Events in Shelf Transport
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LATTE
Lagrangian Transport and Transformation Experiment, in the
Hudson River Plume
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ECOHAB PNW Ecology of Harmful Algae Blooms in the Pacific
Northwest
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