A Spatially Continuous Model of Annual Streamflow Permanence Throughout the Pacific Northwest

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An interdisciplinary team comprised of USGS and university scientists has developed the Probability of Streamflow Permanence Model or PROSPER which predicts flow permanence for unregulated and minimally impaired streams in the Pacific Northwest.

Streamflow permanence is the degree to which rivers and streams maintain flow conditions. Streamflow is a fundamental driver of riverine ecosystems and its permanence classification is a major component of species vulnerability assessments, land management activities, and water quality regulations. PROSPER is a Geographic Information System raster-based empirical model that provides probability-based predictions of a stream channel having year-round flow.  The model provides annual predictions for 2004-2016 in 30-m stream channel grid cells. Predictions are available through USGS StreamStats and can be used in water resources management or species conservation. This represents the largest dynamic stream mapping effort to date and serves as a tool for identifying areas resilient or sensitive to drought conditions, allowing for management efforts that target protecting critical reaches.

 

Jaeger, K.L., Sando, R., McShane, R.R., Dunham, J.B., Hockman-Wert, D.P., Kaiser, K.E., Hafen, K.C., Risley, J.C., Blasch, K.W., 2018, Probability of Streamflow Permanence Model (PROSPER)- A spatially continuous model of annual streamflow permanence throughout the Pacific Northwest: Journal of Hydrology X, p. online, https://doi.org/10.1016/j.hydroa.2018.100005

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Date published: February 1, 2018
Status: Active

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Date published: January 1, 2018

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The U.S. Geological Survey (USGS) has developed the PRObability of Streamflow PERmanence (PROSPER) model, a GIS raster-based empirical model that provides streamflow permanence probabilities (probabilistic predictions) of a stream channel having year-round flow for any unregulated and minimally-impaired stream channel in the Pacific Northwest region, U.S. The model provides annual predictions...

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Mean annual streamflow permanence probability in a section of the Blackfoot River Basin
February 8, 2018

Mean annual streamflow permanence probability, Blackfoot Riv Basin

Mean annual streamflow permanence probability in a section of the Blackfoot River Basin near Deer Lodge, MT. Blue pixels indicate higher probability of streamflow permanence and red pixels indicate lower probability of streamflow permanence. 

Mean annual streamflow permanence probability
February 7, 2018

Mean annual streamflow permanence probability

Mean Annual Streamflow Permanence Probability

Stream observation points and focal basins for PROSPER project
February 7, 2018

Stream observation points and focal basins for PROSPER project

Stream observation points and focal basins for PROSPER project

Variability associated with streamflow permanence predictions
February 7, 2018

Variability associated with streamflow permanence predictions

Variability associated with streamflow permanence predictions