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The U.S. Geological Survey's (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to estimate baseflow changes from historical (1984 - 2012) to thirty-year periods centered around 2030, 2050, and 2080 under warm/wet, median, and hot/dry climatic conditions. SPARROW is a spatially explicit hybrid statistical and process-based model that estimates mean baseflow over the simulation period in streams by linking monitoring data with information on watershed characteristics and baseflow sources, routed through a stream network. This USGS data release includes input and output files associated with SPARROW simulations of baseflow for 10 model runs. Model construction, calibration and...
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In 2019, the U.S. Geological Survey (USGS), in cooperation with the National Park Service(NPS), initiated a study using surrogate technology to predict real-time metallic-contaminant concentrations (MCCs) in the Clark Fork at two USGS streamgages that bracket Grant-Kohrs Ranch National Historic Site (GRKO) near Deer Lodge, Montana. Clark Fork at Deer Lodge (streamgage 12324200), Mont., about one mile upstream from GRKO, and Clark Fork above Little Blackfoot River near Garrison (streamgage 12324400), Mont., about 12 miles downstream from GRKO property were instrumented with turbidity and acoustic sensors for monitoring the Clark Fork during NPS Superfund remediation activities. Time-series data from backscatter signals...


    map background search result map search result map SPARROW model inputs and simulated future baseflow for streams of the Upper Colorado River Basin Water Quality and Streamflow Data for the Clark Fork near Grant-Kohrs Ranch National Historic Site in Southwestern Montana, Water Years 2019 - 2020 Water Quality and Streamflow Data for the Clark Fork near Grant-Kohrs Ranch National Historic Site in Southwestern Montana, Water Years 2019 - 2020 SPARROW model inputs and simulated future baseflow for streams of the Upper Colorado River Basin