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Showing 1 to 10 of 10 for “"Flashiness"”.
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Development and Application of a Stream Flashiness Index based on Imperviousness and Climate using GIS
This work examines the relationship between imperviousness, climate, and the Richards-Baker (R-B) index, a measure of ow variability. Regression equations to predict the R-B index are developed for annual, cool, and warm seasons. The re- gression equations developed, are calibrated using stream ow …
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On the development of flow-ecology relationships for streams in coastal watersheds of southern California
… region. In particular, flow intermittency and flashiness are significant predictors of both taxonomic and traits-based measures of biotic composition. Urban land cover and road density are significantly correlated with higher flow flashiness and decreasing measures of biotic integrity. …
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IMPACTS OF URBAN DEVELOPMENT PATTERN ON RUNOFF PEAK FLOWS AND STREAMFLOW FLASHINESS OF PERI-URBAN CATCHMENTS: ASSESSING THE PERFORMANCE OF PHYSICAL AND DATA-DRIVEN MODELS FOR REAL-TIME ENSEMBLE FLOOD FORECASTING
… that greater peak flows and higher stream flashiness are associated with increased surface imperviousness and storm location. However, the effect of the distribution of impervious areas on runoff peak flow response and stream flashiness of peri-urban catchments has not been well studied. In …
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Relations between Landscape Structure and a Watershed's Capacity to Regulate River Flooding
… temporal trends in precipitation, stream flashiness, and the count, magnitude and duration of small and large floods for the same watersheds, and (3) developed a methodology to map the biophysical and technological capacity of eight urban watersheds to regulate floods. I found (1) floods …
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Fish Community Assembly in the Missouri River Basin
… gage data were also useful to assess discharge flashiness (environmental harshness). All four rivers increased substantially in size from upstream to downstream but, in contrast to typical rivers, discharge flashiness did not decrease as river size increased. Fish species diversity remained …
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Ecologically-focused calibration of hydrological models for environmental flow applications
… criteria: NSE, Richards-Baker Flashiness Index (RBI), percent of time when the flow is < 28 L/s (< 1 cfs), and a Combined Calibration (RBI and < 1 cfs), respectively. Ecologically-focused criteria were selected based on preliminary statistical flow-ecology relationships at gaged …
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Influence of stormwater control measures on watershed hydrology and biogeochemical cycling
… SCMs are able to effect the hydrologic record flashiness at an annual time scale by temporarily storing runoff and extending hydrograph recession. An analysis of water quality data indicates that SCMs are able to reduce N, phosphorous and dissolved organic carbon concentrations in the stream in …
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Observation-Based Algorithm Development For Subsurface Hydrology In Northern Temperate Wetlands
… the high flow, mean flow, and Richard-Baker flashiness Index (RBI), and reduced the low flow and flow distribution. Stream network density analysis showed that simulations with lower drainage density (representing historic, natural conditions) had relatively lower high flow and smaller RBI. …
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Thermal Pollution in Urban Streams of the North Carolina Piedmont
… 2005b). A primary symptom of USS is increased flashiness in hydrographs, as stormwater in urban areas is routed efficiently into streams (Booth and Jackson 1997, Konrad and Booth 2005). With this stormwater runoff comes intense scour leading to deeply incised channels, large amounts of …