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Federal
Data set used to develop a conceptual framework for effectively anticipating water-quality changes resulting from changes in agricultural activities
Department of the Interior —
This USGS data release contains 2013 streamflow, baseflow, and precipitation data from three hydrologically-diverse streams in the United States used to develop a... -
Federal
BFS Model Source Code, Functions, and Scripts (ver. 3.0, December 2025)
Department of the Interior —
Source code for functions comprising a non-linear baseflow separation model, and a complete set of files to run the model in a compressed file, run_bfs.zip, including... -
Federal
Baseflow Fractions for Water Years 1981 to 2020 (ver. 3.0, December 2025)
Department of the Interior —
Simulated daily baseflow was summed from water year 1981 to 2020 and divided by observed streamflow at 11,985 sites with streamflow gages. Daily baseflow was limited... -
Federal
Monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0 (NHDPlusV2), in the Delaware River Basin for the period 1950-2015
Department of the Interior —
This metadata record describes monthly estimates of natural baseflow for 15,866 stream reaches, defined by the National Hydrography Dataset Plus Version 2.0... -
Federal
Assessment of Hydrologic Trends in Pennsylvania
Department of the Interior —
The U.S. Geological Survey (USGS) in cooperation with the Pennsylvania Department of Conservation and Natural Resources (PA DCNR), Bureau of Geological Survey,... -
Federal
Annual streamflow, runoff and baseflow, estimated for the period of record using six hydrograph-separation methods, for 312 gaged basins in the Northwest Volcanic Aquifer Study Area, USA, 1904-2015.
Department of the Interior —
The U.S. Geological Survey’s Water Availability and Use Study Program (WAUSP) (https://water.usgs.gov/ogw/gwrp/activities/regional.html) supports quantitative... -
Federal
Base-flow analysis for tributaries to Lake Superior from 1946 to 2020
Department of the Interior —
These data include base flow separation estimates for 64 USGS streamflow gages in the Lake Superior watershed from 1945 to 2020, shapefiles of the gaging stations and... -
Federal
Datasets and scripts used for estimating streamflow and base flow within the nontidal Chesapeake Bay riverine system, water years 2006-15
Department of the Interior —
This U.S. Geological Survey (USGS) data release contains estimated daily streamflow and base flow for HUC12 in the nontidal areas of the Chesapeake Bay watershed,... -
Federal
BFS Model Parameters (ver. 3.0, December 2025)
Department of the Interior —
Site-specific parameters for a non-linear baseflow separation model determined by automated calibration to maximize baseflow. The file "bf_param.csv" has parameter... -
Federal
Data for Model Estimated Baseflow for Streams Containing Endangered Atlantic Salmon in Maine, USA (version 1.1, July 2022)
Department of the Interior —
The U.S. Geological Survey (USGS) in cooperation with NOAA, developed a regression model for estimating August mean baseflow per square mile of drainage area to help... -
Federal
Average-annual streamflow, runoff and baseflow, estimated for the period of record using six hydrograph-separation methods, for 312 gaged basins in the Northwestern Volcanic Aquifer Study Area, USA, 1904-2015.
Department of the Interior —
The U.S. Geological Survey’s Water Availability and Use Study Program (WAUSP) (https://water.usgs.gov/ogw/gwrp/activities/regional.html) supports quantitative... -
Federal
Data supporting a spatiotemporal trend analysis of specific conductivity, streamflow, and landscape attributes of selected sub-basins within the Delaware River watershed, 1980 to 2018
Department of the Interior —
This data release makes available three data tables supporting a spatiotemporal analysis of riverine conductivity and streamflow trends within the Delaware River... -
Federal
Model Archive and Data Release: Input data, trained model data, and model outputs for predicting streamflow and base flow for the Mississippi Embayment Regional Study Area using a random forest model
Department of the Interior —
This data archive contains datasets developed for the purpose of training and applying random forest models to the Mississippi Embayment Regional Aquifer. The random... -
Federal
Daily mean base flow at Río Guaónica and Río Tanamá, PR for January 01, 2010 to December, 31, 2010
Department of the Interior —
The U.S. Geological Survey, in cooperation with the Puerto Rico Department of Natural and Environmental Resources, completed a study to determine whether a relation... -
Federal
Baseflow Time Series (ver. 3.0, December 2025)
Department of the Interior —
Daily estimates of baseflow derived from a non-linear, baseflow separation model. The files "baseflow_huc_01_02_03.csv", "baseflow_huc_04_05.csv",... -
Federal
Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050
Department of the Interior —
This U.S. Geological Survey data release contains datasets that combine past data with future projections of nitrogen sources and nitrogen export to the Chesapeake... -
Federal
Datasets and metadata for estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology
Department of the Interior —
This USGS data release contains datasets, metadata, and figures associated with estimating nitrate loads and yields from groundwater to streams in the Chesapeake Bay... -
Federal
Daily-timestep and monthly-timestep estimates of baseflow at 49 reference stream gages located within 25 miles of the Delaware River basin watershed boundary for the years 1950 through 2015
Department of the Interior —
This USGS data release contains daily-timestep and monthly-timestep estimates of baseflow at 49 reference stream gages located within 25 miles of the Delaware River... -
Federal
Hydrologic disturbance classification used to describe anthropogenic impairments for gaged basins located in the Northwest Volcanic Aquifer Study Area, USA.
Department of the Interior —
The U.S. Geological Survey’s Water Availability and Use Study Program (WAUSP) (https://water.usgs.gov/ogw/gwrp/activities/regional.html) supports quantitative... -
Federal
Alaska NHM Domain map of permanent snow and initial snowpack depths, derived from monthly-mean GCM Snow water equivalent simulations, January 1980 - October 2022
Department of the Interior —
This data release contains a map of permanent snow, and initial snow-depths for use in NHM-PRMS modeling of the Alaska Domain. Data were computed from NASA's GCM...