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Environmental Sustainability Division

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Regional-Scale Simulation of Water Temperature in the Columbia River Basin

PNNL is using a PNNL-developed Modular Aquatic Simulation System 1D (MASS1) code to simulate hydrodynamics and water temperature on a regional scale in the Columbia River Basin. The MASS1 modeling tool is a one-dimensional, unsteady hydrodynamic and water quality model for river systems.

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