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This data collection consists of a synthetic stream network and associated catchments developed as the foundation for a Spatially Referenced Regressions on Watershed Attributes (SPARROW) dissolved-solids source and transport model for the Upper Colorado River Basin (UCRB). The SPARROW model requires a hydrologically connected representation of a stream network through which loads are transported from an upstream reach to the next reach downstream (Schwarz and others, 2006; Moore and others, 2004). Each stream reach or segment within this synthetic stream network has an associated local drainage area or catchment used to calculate catchment characteristics that may have an effect on loads being modeled. The synthetic...
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This polygon shapefile represents model simulated flood-inundation extents for the Muddy River, near Moapa Nevada. A flood frequency analysis was performed at USGS streamgage 09416000 - Muddy River near Moapa, Nevada, to estimate the 50, 20, 10, 4, 2, and 1-percent annual exceedance probability (AEP) flood streamflows. The flood-inundation extents for the 50-, 20-, 10-, 4-, 2-, and 1-percent AEP floods were simulated for the current levee location in 2019 and for the new levee location of the proposed restoration. One model simulation represents the levee at its current (existing) location in 2019 on the east bank of the river and referred to as ‘current conditions (2019).’ A second model simulation removes the...
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These contours represent water level change in the shallow aquifer in Lahontan Valley from 1992 - 2012 based on depth-to-groundwater measurements made in 73 wells in 1992 and 2012, with limited measurements made in 2013. Measurements collected in 2013 were used to develop the contours only in limited cases where the measurement well was being pumped or was inaccessible in 2012. Water-level change in the shallow aquifer was determined by differencing measurements made in 1992 with current measurements. The difference values were used to interpolate a change surface and contours were developed from that surface.
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This point shapefile contains positional data for 2,205 locations at the Muddy River, near Moapa, Nevada, April 1 to August 9, 2019. Positional data were collected using either a single-base real-time kinematic (RTK) global navigation satellite system (GNSS) or a total station. The survey data primarily were used to define 105 cross-sections, with a secondary use as vertical precision verification for lidar data.
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This polygon shapefile represents the boundaries of the current (2019) and proposed levee locations used to simulate flood-inundation extents for the at Muddy River, near Moapa, Nevada. The new levee location is proposed as part of a river restoration plan for selected reaches of the Muddy River.
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This point shapefile contains positional data for seven static reference locations collected at the Muddy River, near Moapa, Nevada, March 29 to August 9, 2019. Positional data were collected at seven temporary benchmarks using 14 single-baseline online positioning user service – static (OPUS-S) global navigation satellite system (GNSS) surveys. Data were collected using Leica Viva GS14 or TopCon GR-3 GNSS receivers. Processing of static observations was done using the National Geodetic Survey (NGS) online positioning user system (OPUS).
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This vector line dataset represents the lower Las Vegas Wash study area. Surface-water trace was digitized onscreen from Landsat8 and ESRI World Imagery. The trace is used in an accompanying surface-water study to evaluate discharge gains and losses at selected locations in the Lower Las Vegas Wash.
This U.S. Geological Survey data release consists of a tabular dataset containing stream temperature data. Data were collected every 12-hours from 15 sites in Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada. The sites were established by the Bureau of Land Management - Winnemucca District Office in 2017. The data release includes tabular data of site names, date and time of temperature measurement, and stream temperature in degrees Celsius. The site locations are included below as a shapefile, exported from the National Water Information System (NWIS) Mapper. A site list can be accessed here: National Water Information System site list
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These contours represent water levels based on depth-to-groundwater measurements made at 98 wells in July of 2012 in the Lahontan Valley near Fallon, NV. Water level measurements collected before or after July of 2012 were included only in cases where the well was being pumped or was inaccessible in July 2012. The contours were developed to compare with 1992 water level altitude contoured by Seiler and Allander (1993). References cited: Seiler, R.L., Allander, K.K., 1993, Water-Level Changes and Directions of Ground-Water Flow in the Shallow Aquifer, Fallon Area, Churchill County, Nevada: U.S. Geological Survey Water-Resources Investigations Report 93-4118, 74 p. http://pubs.er.usgs.gov/publication/wri934118
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This data set consists of 1:500,000-scale isopleths showing mean annual runoff, 1912-1963, for the Humboldt River Basin, Nevada as published in the Nevada Department of Conservation and Natural Resources Water Resources Bulletin 32 titled "Hydrologic reconnaissance of the Humboldt River basin, Nevada", 1966.
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This generalized geology dataset was developed as input to a total dissolved solids Spatially Referenced Regressions on Watershed Attributes (SPARROW) model for the Upper Colorado River Basin (UCRB; Kenney and others, 2009) and for a more recent update to that model. The largest source of naturally generated dissolved solids in streams of the UCRB is the rocks underlying stream basins, particularly rocks high in dissolvable minerals. For the purposes of modeling, the scale of the geologic dataset optimally should be similar to the scale of the stream-catchment network used in the model but simplified to reduce the number of geologic units represented in the data. This dataset was developed to meet both scale and...
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This data set consists of 1:500,000-scale depth-to-water area polygons for the Humboldt River Basin, Nevada as published in the Nevada Department of Conservation and Natural Resources Water Resources Bulletin 32 titled "Hydrologic reconnaissance of the Humboldt River basin, Nevada", 1966.
    map background search result map search result map Groundwater-level contours for the Lahontan Valley shallow aquifer near Fallon, Nevada, 2012 Groundwater-level change contours for the Lahontan Valley shallow aquifer near Fallon, Nevada, 1992-2012 Generalized 1:500,000-scale geology of the Upper Colorado River Basin Upper Colorado River Basin SPARROW model catchments and synthetic stream network - 2017 1:500,000-scale depth-to-water area polygons for the Humboldt River Basin, Nevada 1:500,000-scale isopleths showing mean annual runoff for the Humboldt River Basin, Nevada, 1912-1963 Groundwater discharge areas for the 14 hydrographic areas in the middle Humboldt River Basin, north-central Nevada Evapotranspiration units delineated July 20–24, 2009 in the upper Humboldt River Basin, northeastern Nevada Potential areas of groundwater discharge delineated July 20–24, 2009 in the upper Humboldt River Basin, northeastern Nevada. Trace of the lower Las Vegas Wash study area, 2017 Stream Temperature of Desert Dace Habitat, Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada, 2017-2020 6) Static reference points for the correction of real-time kinematic global navigation satellite system (GNSS) and total station (TS) surveys at Muddy River, near Moapa, Nevada 5) Real-time kinematic global navigation satellite system (GNSS) and total station (TS) survey points at Muddy River, near Moapa, Nevada 4) Current and proposed levee locations at Muddy River, near Moapa, Nevada 1) Simulated flood-inundation extents for the Muddy River, near Moapa, Nevada 4) Current and proposed levee locations at Muddy River, near Moapa, Nevada 6) Static reference points for the correction of real-time kinematic global navigation satellite system (GNSS) and total station (TS) surveys at Muddy River, near Moapa, Nevada 5) Real-time kinematic global navigation satellite system (GNSS) and total station (TS) survey points at Muddy River, near Moapa, Nevada Stream Temperature of Desert Dace Habitat, Soldier Meadows, Black Rock Desert - High Rock Canyon Emigrant Trails National Conservation Area, Nevada, 2017-2020 1) Simulated flood-inundation extents for the Muddy River, near Moapa, Nevada Groundwater-level change contours for the Lahontan Valley shallow aquifer near Fallon, Nevada, 1992-2012 Groundwater-level contours for the Lahontan Valley shallow aquifer near Fallon, Nevada, 2012 Evapotranspiration units delineated July 20–24, 2009 in the upper Humboldt River Basin, northeastern Nevada Potential areas of groundwater discharge delineated July 20–24, 2009 in the upper Humboldt River Basin, northeastern Nevada. Groundwater discharge areas for the 14 hydrographic areas in the middle Humboldt River Basin, north-central Nevada 1:500,000-scale depth-to-water area polygons for the Humboldt River Basin, Nevada 1:500,000-scale isopleths showing mean annual runoff for the Humboldt River Basin, Nevada, 1912-1963 Upper Colorado River Basin SPARROW model catchments and synthetic stream network - 2017 Generalized 1:500,000-scale geology of the Upper Colorado River Basin