USGS employees measure discharge at USGS gage 15236900 Wolverine Creek near Lawning, Alaska
Julie E. Kiang
Julie E. Kiang, Deputy Regional Director
Science and Products
Transportation-Related Water Projects
SWToolbox Software Information
EPA National Low Flows
Water availability for ungauged rivers: an integrative, multi-model approach to estimate water availability at ungauged rivers across the United States
Low-streamflow and precipitation trends for 183 U.S. Geological Survey streamgages in the Chesapeake Bay Watershed
Trends in 7-day-low streamflows at 174 USGS streamflow gages in the Chesapeake Bay watershed, Mid-Atlantic U.S.
7Q10 Records and Basin Characteristics for 173 basins in Arkansas, Iowa, Kansas, Missouri, Nebraska, and Oklahoma (2017)
Bias correction of Simulated Historical Daily Streamflow at Ungauged Locations Using Independently Estimated Flow-Duration Curves: Data Release
7Q10 records and basin characteristics for 224 basins in South Carolina, Georgia, and Alabama (2015)
Projecting flood frequency curves under near-term climate change
U.S. Geological Survey Hydrologic Toolbox — A graphical and mapping interface for analysis of hydrologic data
Historical and paleoflood analyses for probabilistic flood-hazard assessments—Approaches and review guidelines
Spatial and temporal patterns of low streamflow and precipitation changes in the Chesapeake Bay Watershed
Flood-frequency estimation for very low annual exceedance probabilities using historical, paleoflood, and regional information with consideration of nonstationarity
Updating estimates of low-streamflow statistics to account for possible trends
GRACE storage change characteristics (2003–2016) over major surface basins and principal aquifers in the Conterminous United States
Regionalization of surface-water statistics using multiple linear regression
Bias correction of simulated historical daily streamflow at ungauged locations by using independently estimated flow duration curves
Continuing progress toward a national assessment of water availability and use
A comparison of methods for streamflow uncertainty estimation
SWToolbox: A surface-water tool-box for statistical analysis of streamflow time series
This report is a user guide for the low-flow analysis methods provided with version 1.0 of the Surface Water Toolbox (SWToolbox) computer program. The software combines functionality from two software programs—U.S. Geological Survey (USGS) SWSTAT and U.S. Environmental Protection Agency (EPA) DFLOW. Both of these programs have been used primarily for computation of critical low-flow statistics. Th
U.S. Geological Survey Hydrologic Toolbox version 1.1.0 software archive
U.S. Geological Survey Hydrologic Toolbox Software Archive
SWToolbox Software Information
USGS and the U.S. Environmental Protection Agency (EPA) have combined their SWSTAT and DFLOW software programs into a new tool for the low-flow anlaysis, the SWToolbox. As of May 2022, the SWToolbox has been superseded by the Hydrologic Toolbox.
Science and Products
Transportation-Related Water Projects
SWToolbox Software Information
EPA National Low Flows
Water availability for ungauged rivers: an integrative, multi-model approach to estimate water availability at ungauged rivers across the United States
Low-streamflow and precipitation trends for 183 U.S. Geological Survey streamgages in the Chesapeake Bay Watershed
Trends in 7-day-low streamflows at 174 USGS streamflow gages in the Chesapeake Bay watershed, Mid-Atlantic U.S.
7Q10 Records and Basin Characteristics for 173 basins in Arkansas, Iowa, Kansas, Missouri, Nebraska, and Oklahoma (2017)
Bias correction of Simulated Historical Daily Streamflow at Ungauged Locations Using Independently Estimated Flow-Duration Curves: Data Release
7Q10 records and basin characteristics for 224 basins in South Carolina, Georgia, and Alabama (2015)
USGS employees measure discharge at USGS gage 15236900 Wolverine Creek near Lawning, Alaska
Projecting flood frequency curves under near-term climate change
U.S. Geological Survey Hydrologic Toolbox — A graphical and mapping interface for analysis of hydrologic data
Historical and paleoflood analyses for probabilistic flood-hazard assessments—Approaches and review guidelines
Spatial and temporal patterns of low streamflow and precipitation changes in the Chesapeake Bay Watershed
Flood-frequency estimation for very low annual exceedance probabilities using historical, paleoflood, and regional information with consideration of nonstationarity
Updating estimates of low-streamflow statistics to account for possible trends
GRACE storage change characteristics (2003–2016) over major surface basins and principal aquifers in the Conterminous United States
Regionalization of surface-water statistics using multiple linear regression
Bias correction of simulated historical daily streamflow at ungauged locations by using independently estimated flow duration curves
Continuing progress toward a national assessment of water availability and use
A comparison of methods for streamflow uncertainty estimation
SWToolbox: A surface-water tool-box for statistical analysis of streamflow time series
This report is a user guide for the low-flow analysis methods provided with version 1.0 of the Surface Water Toolbox (SWToolbox) computer program. The software combines functionality from two software programs—U.S. Geological Survey (USGS) SWSTAT and U.S. Environmental Protection Agency (EPA) DFLOW. Both of these programs have been used primarily for computation of critical low-flow statistics. Th
U.S. Geological Survey Hydrologic Toolbox version 1.1.0 software archive
U.S. Geological Survey Hydrologic Toolbox Software Archive
SWToolbox Software Information
USGS and the U.S. Environmental Protection Agency (EPA) have combined their SWSTAT and DFLOW software programs into a new tool for the low-flow anlaysis, the SWToolbox. As of May 2022, the SWToolbox has been superseded by the Hydrologic Toolbox.