Virginia and West Virginia Water Science Center

Data and Tools

We collect, analyze, and distribute data describing various water-related issues and resources. Find links to many data resources here.

Filter Total Items: 61
Date published: August 9, 2019

Fauquier County Groundwater Recharge

A Soil-Water-Balance (SWB) model (Westenbroek and others, 2010) was developed to estimate the mean annual water budget for the period 1996 through 2015 and the annual water budget for a drought-year in 2001. This application allows the display and...

Date published: June 11, 2019

Drought Streamflow Probabilities in Northeast Region

Maximum likelihood logistic regression is used to estimate drought probabilities for selected Northeast region streams. Winter streamflows are used to estimate the chance of hydrologic drought during summer months. Hydrologic drought streamflow probabilities for July, August, and September are provided 5 to 11 months in advance. This application allows the display and query of drought...

Date published: June 11, 2019

Delaware River Basin Monitoring-Site Mapper

The Water-Monitoring-Site Mapper is an interactive map of the Delaware River Basin next-generation integrated water observing system with locations from the USGS National Water Information System. Piloting the NextGen water observing system in the Delaware River Basin provides an opportunity to support innovative modern water prediction and decision support systems in a complex river system....

Date published: January 17, 2018

Estimating Drought Streamflow Probabilities for Virginia Streams

Maximum likelihood logistic regression is used to estimate drought probabilities for selected Virginia rivers and streams. Hydrologic drought streamflow probabilities for summer months are provided as functions of streamflows during the previous winter months. This application allows the display and query of these drought streamflow probabilities for Virginia streams.

Date published: January 1, 2018

Expanded shifted ratings and estimated provisional streamflow for streamgages in the James River Basin in Virginia, water years 1991 through 2013

Estimated provisional streamflow values (Messinger and Burgholzer, 2017) for streamgages in James River Basin and the shifted, expanded ratings that were used to develop them are included in this dataset. This file contains source data, daily streamflow records and selected ratings that had been saved in the National Water Information Service database for water years 1991-2013. Microsoft...

Date published: January 1, 2018

Expanded shifted ratings and estimated provisional streamflow for streamgages in the Ohio River Basin in Virginia, water years 1991 through 2013

Estimated provisional streamflow values (Messinger and Burgholzer, 2017) for streamgages in Ohio River Basin and the shifted, expanded ratings that were used to develop them are included in this dataset. This file contains source data, daily streamflow records and selected ratings that had been saved in the National Water Information Service database for water years 1991-2013. Microsoft Excel...

Date published: January 1, 2018

Expanded shifted ratings and estimated provisional streamflow for streamgages in the Rappahannock, Piankatank, and York River Basins in Virginia, water years 1991 through 2013

Estimated provisional streamflow values (Messinger and Burgholzer, 201x) for streamgages in the Rappahannock, Piankatank, and York River Basins and the shifted, expanded ratings that were used to develop them are included in this dataset. This file contains source data, daily streamflow records and selected ratings that had been saved in the National Water Information Service database for...

Date published: January 1, 2018

Expanded shifted ratings and estimated provisional streamflow for streamgages in the Chowan and Roanoke River Basins in Virginia, water years 1991 through 2013

Estimated provisional streamflow values (Messinger and Burgholzer, 201x) for streamgages in the Chowan and Roanoke River Basins and the shifted, expanded ratings that were used to develop them are included in this dataset. This file contains source data, daily streamflow records and selected ratings that had been saved in the National Water Information Service database for water years 1991-...

Date published: January 1, 2018

Ratings and estimated provisional streamflow for streamgages in Virginia, water years 1991 through 2013

The U.S. Geological Survey, in cooperation with the Virginia Department of Environmental Quality, has quantified several measures of rating stability and the frequency and magnitude of changes to ratings through time for 174 real-time continuous streamgages active in Virginia as of September 30, 2013. Alternative flow (AltFlow) tables were developed as a method of estimating provisional flow...

Date published: January 1, 2018

Inputs and Selected Predictions of a Differential Spatially Referenced Regression Model for 20-year Changes in Total Nitrogen in the Chesapeake Bay Watershed

The core equations of the SPARROW model (Schwarz and others, 2006) were implemented in differential form using the R programming language (R Core Team, 2017), as the basis of a tool for empirically relating a regional pattern of changes in constituent flux, over a multi-year period, to spatially referenced changes in explanatory variables over the same period. A pilot implementation was...

Date published: January 1, 2018

Expanded shifted ratings and estimated provisional streamflow for streamgages in the Potomac River Basin in Virginia, water years 1991 through 2013

Estimated provisional streamflow values (Messinger and Burgholzer, 2017) for streamgages in Potomac River Basin and the shifted, expanded ratings that were used to develop them are included in this dataset. This file contains source data, daily streamflow records and selected ratings that had been saved in the National Water Information Service database for water years 1991-2013. Microsoft...

Date published: December 11, 2017

Virginia Water-Monitoring-Site Mapper

The Water-Monitoring-Sites Mapper is an interactive map of Virginia water monitoring-site locations from the USGS National Water Information System (NWIS). It provides access to surface water, groundwater, and water quality monitoring data for active sites. The functionality includes query, select, tabular display by county,...