Water Resources

Filter Total Items: 349
Date published: February 23, 2019
Status: Completed

Apalachicola-Chattahoochee-Flint River Basin Focus Area Study: Drought Impacts on Streams and Groundwater

During 2011 drought conditions in the ACF basin provided an opportunity to document streamflow and groundwater levels under these extreme conditions. Over 350 water levels were measured in wells and streamflow was measured at 212 streams or springs.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Apalachicola-Chattahoochee-Flint River Basin Focus Area Study: Water Use

Water use estimates and water returns for the ACF Basin were estimated and compiled by category and location during 2010. Categories included public supply, self-suppled domestic, self-supplied commercial, industrial, mining, agricultural (crop irrigation, livestock, and aquaculture), and thermoelectric-power generation. Methods for estimating irrigation water use were compared and evaluated...

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Apalachicola-Chattahoochee-Flint River Basin Focus Area Study: Estimating Streamflow

A hydrologic model that simulates streamflow conditions in the ACF Basin was constructed using the Precipitation Runoff Modeling System. The model simulated development by including withdrawals and returns, interbasin transfers, storage in unmanaged reservoirs, and impervious surface.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Apalachicola-Chattahoochee-Flint River Basin Focus Area Study: Groundwater/Surface-Water Interactions

In the lower Chattahoochee and Flint River Basin, a groundwater flow model was developed to simulate the effects of groundwater withdrawals on streamflow. This model was linked with the streamflow model to improve estimates of baseflow conditions during critical times, such as droughts.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Colorado River Basin Focus Area Study: Evapotranspiration

New USGS-developed, remote-sensing based approaches were used to quantify agricultural irrigation water consumption on a field-by-field scale. The work produced the first ever Colorado River Basin-wide, 100-m scale actual ET estimate (2010) using Landsat imagery.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Colorado River Basin Focus Area Study: Snowpack Hydrodynamics

The Focus Area Study examined factors affecting snowpack distribution, snowmelt, and losses of snowpack water due to sublimation in the Upper Colorado River Basin. Also, as part of the FAS, the USGS has developed methods to make physical measurements of snowpack sublimation.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Colorado River Basin Focus Area Study: Water Use

Water-use data were compiled as annual total withdrawals by source and aggregated to 8-digit Hydrologic Unit Code watersheds from 1985 to 2010 in five year intervals. The new compilation allows for an evaluation of water-use trends in the Colorado River Basin and the effect of use on the water budget.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Colorado River Basin Focus Area Study: Groundwater discharge to streams

Methods were developed in the CRB FAS to estimate groundwater discharge to streams in the upper Colorado River Basin (UCBR) using in-stream water-quality data. Results indicate groundwater discharge to streams contributes an average of 48 percent of total streamflow in the UCRB.

 

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Delaware River Basin Focus Area Study

As one of several National Focus Area Studies within the USGS National Water Census (NWC), the USGS completed a 3-year study of water availability and use in the Delaware River Basin.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Delaware River Basin Focus Area Study: Process-Based Streamflow Modeling

The Water Availability Tool for Environmental Resources provides a decision support system to examine different land-cover forecasts and climate projections using physical aspects of the basin that will remain unchanged, like topography and soil properties, to estimate streamflow for ungaged streams.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Delaware River Basin Focus Area Study: Statistical Streamflow Modeling

The Delaware River Basin Streamflow Estimator Tool (DRB-SET) uses historical records of streamflow to estimate daily mean streamflow at any stream location within the Delaware River Basin for the period 1960-2010, incorporating basin characteristics such as drainage size, soil, geology, and seasonal precipitation.

Attribution: Water Resources
Date published: February 23, 2019
Status: Completed

Delaware River Basin Focus Area Study: Water Use

Water-use data were compiled or estimated for 8-digit and 12-digit Hydrologic Unit Code watersheds for 2010. Water withdrawal, interbasin transfers, return flow, and hydroelectric power generation release data were compiled for 11 water-use categories.

Attribution: Water Resources