Recent advances in remote sensing technology have enabled digital morphologic mapping of large ex... more Recent advances in remote sensing technology have enabled digital morphologic mapping of large extents of stream networks. These synoptic data have relatively high resolution, precision and accuracy, and present opportunities to inventory or sample and monitor channel topography and physical habitat over an unprecedented range of spatial scales. However, manual interpretations of such extensive data are tedious and often somewhat subjective. We have developed an open access GIS-based tool suite, the River Bathymetry Toolkit (RBT), which will interrogate high-resolution stream and floodplain DEMs and quantitatively describe the channel topography. The RBT has modules to define standard at-a-station hydraulic geometry metrics at any water stage as well as the channel gradient and sinuosity. RBT information can be explored by cross-section or longitudinal profile. Cross-section data can be directly exported to the HEC-RAS one-dimensional numerical flow modeling software. The toolkit is...
Beginning with the launch of the current phase of this project in October 2008 and extending thro... more Beginning with the launch of the current phase of this project in October 2008 and extending through to its conclusion in 2014, the Ecological Flows Tool (EFT) project has had the goal of improving water planning in the Sacramento River and the San Joaquin-Sacramento Delta. The waters which flow through these two ecoregions are among the most highly regulated anywhere in the world, serving over 20 million people, supporting a $40 billion agriculture industry, and sustaining diverse, although highly altered, ecosystems. Because of a chronic inability to find "balance" in the trade-offs among competing objectives and resource demands, the Delta is universally regarded to be in crisis. A central challenge in managing the Sacramento River and Delta is evaluating how alternative river management scenarios are likely to impact different components of the ecosystem. Our project directly addresses this challenge. Aided by over 70 scientists and managers since the project’s 2004 in...
1 Wildlife Trust, 460 West 34th Street, 17th Floor, New York, NY 10001 USA 2 Oregon Cooperative F... more 1 Wildlife Trust, 460 West 34th Street, 17th Floor, New York, NY 10001 USA 2 Oregon Cooperative Fish and Wildlife Research Unit, Oregon State University, Department of Fisheries and Wildlife, 104 Nash Hall, Corvallis, OR 97331 USA, 88sunday88@gmail.com, nelsonsk@ ...
Recent advances in remote sensing technology have enabled digital morphologic mapping of large ex... more Recent advances in remote sensing technology have enabled digital morphologic mapping of large extents of stream networks. These synoptic data have relatively high resolution, precision and accuracy, and present opportunities to inventory or sample and monitor channel topography and physical habitat over an unprecedented range of spatial scales. However, manual interpretations of such extensive data are tedious and often somewhat subjective. We have developed an open access GIS-based tool suite, the River Bathymetry Toolkit (RBT), which will interrogate high-resolution stream and floodplain DEMs and quantitatively describe the channel topography. The RBT has modules to define standard at-a-station hydraulic geometry metrics at any water stage as well as the channel gradient and sinuosity. RBT information can be explored by cross-section or longitudinal profile. Cross-section data can be directly exported to the HEC-RAS one-dimensional numerical flow modeling software. The toolkit is...
Beginning with the launch of the current phase of this project in October 2008 and extending thro... more Beginning with the launch of the current phase of this project in October 2008 and extending through to its conclusion in 2014, the Ecological Flows Tool (EFT) project has had the goal of improving water planning in the Sacramento River and the San Joaquin-Sacramento Delta. The waters which flow through these two ecoregions are among the most highly regulated anywhere in the world, serving over 20 million people, supporting a $40 billion agriculture industry, and sustaining diverse, although highly altered, ecosystems. Because of a chronic inability to find "balance" in the trade-offs among competing objectives and resource demands, the Delta is universally regarded to be in crisis. A central challenge in managing the Sacramento River and Delta is evaluating how alternative river management scenarios are likely to impact different components of the ecosystem. Our project directly addresses this challenge. Aided by over 70 scientists and managers since the project’s 2004 in...
1 Wildlife Trust, 460 West 34th Street, 17th Floor, New York, NY 10001 USA 2 Oregon Cooperative F... more 1 Wildlife Trust, 460 West 34th Street, 17th Floor, New York, NY 10001 USA 2 Oregon Cooperative Fish and Wildlife Research Unit, Oregon State University, Department of Fisheries and Wildlife, 104 Nash Hall, Corvallis, OR 97331 USA, 88sunday88@gmail.com, nelsonsk@ ...
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