Lower Columbia River


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Overview

Our research on the Lower Columbia River has two complementary goals. The first is the elucidation of estuarine processes, from both physical and ecosystem perspectives. The Columbia provides, in this regard, a classic example of a large river-dominated estuary, with low residence times and a higly complex density structure. This is in sharp contrast with other estuaries being investigated by CCALMR, such as Tillamook Bay and Tejo.

The second research goal is the development of models that effectively assist decision-making on issues of social and economic importance for the Columbia River basin.

Both goals are being approached through a number of individual but strategically-related multi-institutional research projects:

  • Columbia River Estuarine Turbidity Maxima : An interdisciplinary investigation of the ecosystem role of the Estuarine Turbidity Maxima, and of the associated physical, chemical, and biological processes.

  • Oceanographic and Environmental Characterization of Coastal Regions: An interdisciplinary investigation of coastal and estuarine processes, that includes an in-depth modeling and observational study of density-driven flows at the mouth of the Columbia River estuary.

  • Oceanographic Measurements at the Mouth of the Columbia River: Targeted observations and modeling to characterize wave and circulation patterns near dredged material disposal sites at the mouth of the Columbia river.

  • Tsunami ! : An investigation of the impact of Cascadia Subduction Zone tsunamis on the coasts of Oregon and Washington, that includes the analysis of tsunami flooding in the vicinity of the mouth of the Columbia River estuary.

    A field station, the Marine and Environmental Research and Training Station (MERTS), developed cooperatively, provides the logistical support for our long-term involvement in Columbia River research.


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