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Every five years since 1950, the U.S. Geological Survey (USGS) National Water Use Information Program (NWUIP) has compiled water use information in the United States and published a circular report titled "Estimated use of water in the United States", that includes estimates of water withdrawals by State, sources of water withdrawals (groundwater or surface water), and water use category (irrigation, public supply, industrial, thermoelectric, etc.). This report discusses the impact of important considerations when estimating irrigated acreage and irrigation withdrawals, including estimates of conveyance loss, irrigation system efficiencies, pasture, horticulture, golf courses, and double cropping.
While streamgages can provide accurate and timely measurements of streamflow, streamflow needs are too wide ranging and disparate to allow installation of streamgages at every location where information is required. This project seeks to develop estimates of streamflow at ungaged locations by making use of nearby gaged records and state of the art modeling techniques.
Societal water-use estimates were required for the other four components of the Coastal Carolinas focus area study. Estimates of water withdrawals related to the societal water use included categories of public supply, self-supplied domestic, industrial, thermoelectric power, irrigation for crops and golf courses, livestock, mining, and aquaculture. Estimates for wastewater returns to surface water bodies were also needed for the surface-water modeling component of the project. These estimates were derived from site-specific data when available or disaggregated from county level information previously published in the USGS series of national water-use reports. These reports were facilitated by the USGS National...
Categories: Project
The study will: 1) improve the integration of state water-use and water supply data; 2) develop a basin-wide surface-water hydrologic model capable of evaluating the impacts of land-use change, climate change, and changes in water demand; and 3) develop a scientific approach to defining relations between streamflow processes and the responses of aquatic organisms in tributary streams.
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Delaware,
Ecological flows,
Estimated/predicted streamflow,
climate change,
land-use change,
This project applies ET remote sensing at two scales, 1) across the full landscape at 1000 m MODIS resolution (as a component of the water budget to support water availability studies, and 2) on agricultural lands at 100 m Landsat resolution (for estimating crop water use).
An existing biological response model of fish populations in the Tennessee and Apalachicola, Chattahoochee, Flint (ACF) River basins, and an existing biological response model of invertebrates in Delaware and NC will serve as the starting points for the development of empirical flow-biology response models for the Yadkin/Pee Dee/Waccamaw and Cape Fear River basins. The existing ecological response models will be used to determine if the land-use and streamflow characteristics that are important in determining biological responses in the existing models are also important in the Yadkin/Pee Dee/Waccamaw and Cape Fear River basins or whether other variables are more important in determining responses. These comparisons...
A major component of the Water Census is the National Water Census Data Platform, which enables integration and delivery of water budget information alongside other data of interest to managers, such as water use data or ecological assessment criteria. Eventually, end users of water budget data (i.e. management agencies and decision-makers) will be able to access an integrated system of online databases in a form that will enable them to construct local and regional water budgets.
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Data Management / Web Development,
aquatic biology,
evapotranspiration,
precipitation,
runoff,
The Red River Basin of New Mexico, Oklahoma, Texas, Arkansas, and Louisiana was chosen as a focus area study (FAS) as part of the U.S. Geological Survey (USGS) National Water Census (NWC). The objective of the NWC is to place technical information and tools in the hands of stakeholders so that they can make decisions on water availability. With this set objective, the USGS Water Science Centers in New Mexico, Oklahoma, Texas, Arkansas, and Louisiana conducted a study of water use and availability for the Red River Basin to improve water withdrawal estimates and investigate trends in water resources under future climate conditions and increased water withdrawals using groundwater and surface-water models (MODFLOW...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: MODFLOW,
PRMS,
deterministic modeling,
ecological flows,
groundwater,
Integrated land- and water-use planning strategies are gaining attention as means to inform consideration of more water-efficient urbanization patterns in response to uncertain water availability. We coupled climate and land change projections with empirically-derived coefficient estimates of development-related water demand to project water demand under future conditions of environmental change. Development-related water demand, used to characterize the water footprint of urbanization, is classified as the combined use of public water supply, domestic self-supply and industrial self-supply. We simulated two scenarios of urban growth from 2012 to 2065 using the FUTure Urban-Regional Environment Simulation (FUTURES)...
Categories: Data,
Project;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile
The Apalachicola-Chattahoochee-Flint (ACF) Basin in Alabama, Florida, and Georgia has ongoing conflict over water use and availability. To address this issue, the USGS is conducting a three-year study to estimate water use, model surface and groundwater flow, and develop ecological flow relations.
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: ACF,
agricultural water use estimation,
ecological flows,
groundwater model,
septic system returns,
This study sought to better quantify selected components of the water budget in the Colorado River Basin to assist in the assessment of water availability for the region.
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Colorado,
Colorado River Basin,
evapotranspiration,
groundwater,
snow pack,
In 2014, the Upper Rio Grande Basin (URGB) of Colorado, New Mexico, Texas, and northern Mexico was chosen as a focus area study (FAS) for the U.S. Geological Survey (USGS) National Water Census. The three main objectives of the USGS National Water Census are to (1) provide a nationally consistent set of indicators that reflect each status and trend relating to the availablity of water resources in the United States, (2) provide information and tools that allow users to better understand the flow requirements for ecological purposes, and (3) report on areas of significant competition over water resources and the factors that have led to the competition. The URGB FAS will help meet these objectives through an integrated,...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: evapotranspiration,
groundwater,
snow pack,
snow processes,
streamflow model,
This project has developed models based on heat budgets to estimate water use for electrical generation, and produced estimated thermoelectric withdrawal and consumption at the level of individual plants for 2010. Refinement of these methods is ongoing.
The Coastal Carolinas Focus Area Study (CC FAS) examines water availability and use to meet competing societal and ecological needs in Southeastern Atlantic Coastal Basins of the Carolinas. The study area is focused along the coastline of the Carolinas, extending from Georgetown, South Carolina to Wilmington, North Carolina, and includes lower parts of the Cape Fear River and Pee Dee River basins. Projected changes in population, land-use, and climate is expected to place significant stress on water resources in the Coastal Carolinas. To investigate impacts from these stressors, this study was divided into five distinct components: (1) Societal Water-Use Data Compilation and Refinement, (2) Land-use, Population,...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Coastal Carolinas
Surface-water models are being developed to simulate streamflow at existing USGS gaging stations and other ungaged locations in and upstream of the Coastal Basins of the Carolinas. The models will be used to simulate the potential effects of projected changes in water-use, climate, and urbanization through the year 2065. The Soil and Water Assessment Tool (SWAT) is being used to develop the models. The SWAT model is a physically-based watershed model with the capability of incorporating water-use data. The model operates on a daily time step, which is necessary to support the data input requirements of future ecological response modeling. The models are being calibrated to the period 2000-2014 and will subsequently...
The Atlantic Coastal Plain aquifers and confining units of North and South Carolina are composed of crystalline carbonate rocks, sand, clay, silt, and gravel and contain large volumes of high-quality groundwater. Some of these aquifers have a long history of use dating back to the earliest days of European settlement in the late 1600’s. Groundwater use from the Atlantic Coastal Plain aquifers in North and South Carolina has increased during the past 70 years as the population has increased along with demands for municipal, industrial, and agricultural water needs. While North and South Carolina work to increase development of water supplies in response to the rapid growth occurring in these coastal areas, the States...
Categories: Project
The U.S. Geological Survey's National Water-Use Program (formerly the National Water-Use Information Program) is responsible for compiling and disseminating the nation's water-use data. Established by USGS in 1978, the USGS National Water-Use Program builds on the legacy of the Estimated Use of Water in the United States report series, begun in 1950 and produced every 5 years. The National Water-Use Science Project is a part of the National Water Census (NWC), which supports research focused on improving methods of collection and estimation of water-use data. Water use is a key component of the water-budget approach of the NWC. Goals of the National Water-Use Program: Analyze the source, use, and disposition of...
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