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: 117
Date published: January 1, 2018

Chesapeake Bay Nontidal Network 1985-2017: WRTDS input data

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2017. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

Date published: January 1, 2018

Chesapeake Bay River Input Monitoring Network 1985-2017: Average annual yields

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2017. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

Date published: January 1, 2018

Chesapeake Bay River Input Monitoring Network 1985-2017: Annual loads

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2017. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

Date published: January 1, 2018

Chesapeake Bay River Input Monitoring Network 1985-2017: Monthly loads

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2017. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

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 implementa

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

Date published: January 1, 2018

Monthly Streamflows, Drought Indices, and Supporting Statistics for USGS Gage Stations Used to Identify Variability of Hydrological Droughts in the Conterminous United States, 1951 through 2014

A table is presented listing: (1) monthly streamflows, (2) drought duration dates, (3) drought severity indices, (4) supporting statistics, and (5) identification tags, for analysis of hydrological droughts in the Conterminous United States (CONUS). Data were summarized from USGS streamflow daily values (DV), readily available from the U.S. Geological Sur

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

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. Microso

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 datab

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. Microsof

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. Micro