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Cottonwood forests are in decline becasue of losses from land use conversion and reduced regeneration from river regulation. Projecting lon-term implications of current trends and policies, or alterations of these, will help to identify the importance and scale of restoration activities needed to offset losses. This project developed a landscape dynamic model to project future (eig. 25, 50, 100 year) trends in cottonwood forst area and age distribution for four remnant floodplain reches on the Missouri River, based on recent rates (or alternative scenarios) of land use change, cottonwood recruitment, and succession. For two reaches, these changes are used to project the effects onabundances of selected songbird...
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In FY12, hydrogeomorphic methodology was applied along 670 miles of the Missouri River from Decatur, Nebraska to St. Louis, Missouri. In FY15, additional resources extended the HGM up river to Gavin’s Point Dam, West Yankton, South Dakota (approximate river mile 811), the location of the most downstream mainstem dam; thus encompassing the entire free flowing reach of the Missouri River and increasing the study area by approximately 800,000 acres. Using this method, engineers and ecologists incorporated state-of-the-art scientific knowledge of ecological processes and key fish and wildlife species to identify options by which to emulate natural hydrologic and vegetation/ animal community dynamics. Results of this...
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This child data release includes RGB (red-green-blue) videos acquired from an Unmanned Aircraft System (UAS) during a tracer experiment performed on the Missouri River near Columbia, Missouri, on May 5, 2021. One of the primary goals of this tracer experiment was to assess the feasibility of inferring concentrations of a visible dye (Rhodamine WT) from various types of remotely sensed data in a large, highly turbid natural river channel. Previous research on remote sensing of tracer dye concentrations has focused on clear-flowing streams, but the Missouri River is much more turbid. As a result, the effect of the dye on the reflectance of the water could be obscured by the effects of suspended sediment on reflectance....
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Grass carp, bighead carp, and silver carp spawn in flowing water. Their eggs,and then larvae, develop while drifting. Hydraulic conditions control spawning locations, egg survival, and the downstream distance traveled before the hatched larvae can swim for low velocity nursery habitats. Existing egg drift models simulate the fluvial transport of carp eggs but have limitations in capturing the effect of localized turbulence on egg transport due to inadequate dimensions of hydrodynamics and/or empirical parameterization of river dispersion. We present a three-dimensional Lagrangian particle tracking model that uses fully resolved river hydrodynamics and a continuous random walk algorithm driven by local turbulent...
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The goal of this project was to develop a landscape dynamics model to project future trends in forest area, age class distribution, and forest type (cottonwood vs. non-cottonwood) for four remnant floodplain segments on the Missouri River and, for two river segments, project effects of forest changes on abundances of forest bird species. These four river segments have not been channelized or inundated by reservoirs and thus still retain some of the natural abiotic and biotic processes of the Missouri River as it existed before human alteration. Fluvial geomorphic processes on all four, however, were significantly altered by the construction of six dams on the main stem of the river in the mid twentieth century....
    map background search result map search result map Hydrogeomorphic Evaluation of Restoration Options for Lower Missouri River Projecting Long-Term Landscape Change Along the Missouri River: Implications for Cottonwood Forests and Songbird Populations Projecting Long-term Landscape Change along the Missouri River: Implications for Cottonwood Forests and Songbird Populations Report Videos acquired from an unmanned aircraft system (UAS) acquired during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Data supporting a new three-dimensional Lagrangian particle tracking model for predicting transport of carp eggs in turbulent rivers Data supporting a new three-dimensional Lagrangian particle tracking model for predicting transport of carp eggs in turbulent rivers Videos acquired from an unmanned aircraft system (UAS) acquired during a tracer experiment on the Missouri River near Columbia, MO, on May 5, 2021 Hydrogeomorphic Evaluation of Restoration Options for Lower Missouri River Projecting Long-Term Landscape Change Along the Missouri River: Implications for Cottonwood Forests and Songbird Populations Projecting Long-term Landscape Change along the Missouri River: Implications for Cottonwood Forests and Songbird Populations Report