Watershed Modeling
Watershed Modeling
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Nevada StreamStats
The USGS Nevada Water Science Center (NVWSC), in partnership with the Bureau of Land Management (BLM) and the Nevada Division of Water Resources (NDWR), is updating streamflow statistics for Nevada. Additionally, the project includes launching StreamStats, a web-based Geographic Information Systems (GIS) tool that provides streamflow statistics and information about drainage basins. Work on this...
Quantifying watershed controls on fine sediment particles and nutrient loading to Lake Tahoe using data mining and machine learning
Since the late 1980’s, the USGS has collected discharge, sediment, and water quality data at seven major drainages under the Lake Tahoe Interagency Monitoring Program (LTIMP). Recently, continuous, real-time measurements of turbidity were added to the LTIMP. These data can be combined with in situ, model simulations, and remotely-sensed datasets available from the USGS, National Aeronautics and...
Nutrient Source Identification in Groundwater and Periphyton Along the Nearshore of Lake Tahoe
High concentrations of phosphorus (P) and nitrogen (N) are responsible for excessive, or nuisance algal blooms in many ecosystems world-wide, and climate change is predicted to exacerbate the problem1,2. Excessive nutrients supplied to the nearshore zone of Lake Tahoe may have significant consequences to ecological communities, water clarity, and water quality. The nearshore zone represents the...
Quantifying Seepage Losses on the Truckee Canal, Derby Dam to Lahontan Reservoir
Seepage losses from the Truckee Canal poses major challenges to water managers. Seepage losses result in inefficiencies in water delivery and cause more water than is needed by farmers to be diverted from the Truckee River to meet required demands. Increased diversions from the Truckee River result in less water flowing through the lower Truckee River system and into Pyramid Lake, a terminal lake...
Effects of Groundwater Withdrawals, Tracy Segment
The USGS Nevada Water Science Center began an investigation in 2010 to quantify hydrologic effects of groundwater withdrawals on Truckee River streamflow in the Tracy Segment hydrographic area, Storey, Washoe and Lyon Counties, Nevada. Groundwater gradients have been monitored at sites near pumping wells and the river. Water-level fluctuations resulting from local pumping are interpreted with flow...