Julie E. Kiang
Julie E. Kiang, Deputy Regional Director
Science and Products
Filter Total Items: 32
GRACE storage change characteristics (2003–2016) over major surface basins and principal aquifers in the Conterminous United States GRACE storage change characteristics (2003–2016) over major surface basins and principal aquifers in the Conterminous United States
In this research, we characterized the changes in Gravity Recovery and Climate Experiment’s (GRACE) monthly total water storage anomaly (TWSA) in 18 surface basins and 12 principal aquifers in the Conterminous United States (CONUS) over 2003–2016. Regions with high variability in storage were identified. Ten basins and 4 aquifers showed significant change in storage. Eight surface basins...
Authors
Naga Manohar Velpuri, Gabriel Senay, Jessica M. Driscoll, Samuel Saxe, Lauren E. Hay, William H. Farmer, Julie E. Kiang
Regionalization of surface-water statistics using multiple linear regression Regionalization of surface-water statistics using multiple linear regression
This report serves as a reference document in support of the regionalization of surface-water statistics using multiple linear regression. Streamflow statistics are quantitative characterizations of hydrology and are often derived from observed streamflow records. In the absence of observed streamflow records, as at unmonitored or ungaged locations, other techniques are required...
Authors
William H. Farmer, Julie E. Kiang, Toby D. Feaster, Ken Eng
Bias correction of simulated historical daily streamflow at ungauged locations by using independently estimated flow duration curves Bias correction of simulated historical daily streamflow at ungauged locations by using independently estimated flow duration curves
In many simulations of historical daily streamflow distributional bias arising from the distributional properties of residuals has been noted. This bias often presents itself as an underestimation of high streamflow and an overestimation of low streamflow. Here, 1168 streamgages across the conterminous USA, having at least 14 complete water years of daily data between 1 October 1980 and...
Authors
William H. Farmer, Thomas M. Over, Julie E. Kiang
Continuing progress toward a national assessment of water availability and use Continuing progress toward a national assessment of water availability and use
Executive Summary The Omnibus Public Land Management Act of 2009 (Public Law 111—11) was passed into law on March 30, 2009. Subtitle F, also known as the SECURE Water Act, calls for the establishment of a “national water availability and use assessment program” within the U.S. Geological Survey (USGS). The USGS issued the first report on the program in 2013. Program progress over the...
Authors
Eric J. Evenson, Sonya A. Jones, Nancy L. Barber, Paul M. Barlow, David L. Blodgett, Breton W. Bruce, Kyle R. Douglas-Mankin, William H. Farmer, Jeffrey M. Fischer, William B. Hughes, Jonathan G. Kennen, Julie E. Kiang, Molly A. Maupin, Howard W. Reeves, Gabriel B. Senay, Jennifer S. Stanton, Chad R. Wagner, Jennifer T. Wilson
A comparison of methods for streamflow uncertainty estimation A comparison of methods for streamflow uncertainty estimation
Streamflow time series are commonly derived from stage‐discharge rating curves, but the uncertainty of the rating curve and resulting streamflow series are poorly understood. While different methods to quantify uncertainty in the stage‐discharge relationship exist, there is limited understanding of how uncertainty estimates differ between methods due to different assumptions and...
Authors
Julie E. Kiang, Christopher L. Gazoorian, Hillary McMillan, Gemma Coxon, Jerome Le Coz, Ida Westerberg, Arnaud Belleville, Damien Sevrez, Anna Sikorska, Asgeir Petersen-Overleir, Trond Reitan, Jim Freer, Benjamin Renard, Valentin Mansanarez, Robert R. Mason,
SWToolbox: A surface-water tool-box for statistical analysis of streamflow time series 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...
Authors
Julie E. Kiang, Kate Flynn, Tong Zhai, Paul Hummel, Gregory E. Granato
Science and Products
Filter Total Items: 32
GRACE storage change characteristics (2003–2016) over major surface basins and principal aquifers in the Conterminous United States GRACE storage change characteristics (2003–2016) over major surface basins and principal aquifers in the Conterminous United States
In this research, we characterized the changes in Gravity Recovery and Climate Experiment’s (GRACE) monthly total water storage anomaly (TWSA) in 18 surface basins and 12 principal aquifers in the Conterminous United States (CONUS) over 2003–2016. Regions with high variability in storage were identified. Ten basins and 4 aquifers showed significant change in storage. Eight surface basins...
Authors
Naga Manohar Velpuri, Gabriel Senay, Jessica M. Driscoll, Samuel Saxe, Lauren E. Hay, William H. Farmer, Julie E. Kiang
Regionalization of surface-water statistics using multiple linear regression Regionalization of surface-water statistics using multiple linear regression
This report serves as a reference document in support of the regionalization of surface-water statistics using multiple linear regression. Streamflow statistics are quantitative characterizations of hydrology and are often derived from observed streamflow records. In the absence of observed streamflow records, as at unmonitored or ungaged locations, other techniques are required...
Authors
William H. Farmer, Julie E. Kiang, Toby D. Feaster, Ken Eng
Bias correction of simulated historical daily streamflow at ungauged locations by using independently estimated flow duration curves Bias correction of simulated historical daily streamflow at ungauged locations by using independently estimated flow duration curves
In many simulations of historical daily streamflow distributional bias arising from the distributional properties of residuals has been noted. This bias often presents itself as an underestimation of high streamflow and an overestimation of low streamflow. Here, 1168 streamgages across the conterminous USA, having at least 14 complete water years of daily data between 1 October 1980 and...
Authors
William H. Farmer, Thomas M. Over, Julie E. Kiang
Continuing progress toward a national assessment of water availability and use Continuing progress toward a national assessment of water availability and use
Executive Summary The Omnibus Public Land Management Act of 2009 (Public Law 111—11) was passed into law on March 30, 2009. Subtitle F, also known as the SECURE Water Act, calls for the establishment of a “national water availability and use assessment program” within the U.S. Geological Survey (USGS). The USGS issued the first report on the program in 2013. Program progress over the...
Authors
Eric J. Evenson, Sonya A. Jones, Nancy L. Barber, Paul M. Barlow, David L. Blodgett, Breton W. Bruce, Kyle R. Douglas-Mankin, William H. Farmer, Jeffrey M. Fischer, William B. Hughes, Jonathan G. Kennen, Julie E. Kiang, Molly A. Maupin, Howard W. Reeves, Gabriel B. Senay, Jennifer S. Stanton, Chad R. Wagner, Jennifer T. Wilson
A comparison of methods for streamflow uncertainty estimation A comparison of methods for streamflow uncertainty estimation
Streamflow time series are commonly derived from stage‐discharge rating curves, but the uncertainty of the rating curve and resulting streamflow series are poorly understood. While different methods to quantify uncertainty in the stage‐discharge relationship exist, there is limited understanding of how uncertainty estimates differ between methods due to different assumptions and...
Authors
Julie E. Kiang, Christopher L. Gazoorian, Hillary McMillan, Gemma Coxon, Jerome Le Coz, Ida Westerberg, Arnaud Belleville, Damien Sevrez, Anna Sikorska, Asgeir Petersen-Overleir, Trond Reitan, Jim Freer, Benjamin Renard, Valentin Mansanarez, Robert R. Mason,
SWToolbox: A surface-water tool-box for statistical analysis of streamflow time series 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...
Authors
Julie E. Kiang, Kate Flynn, Tong Zhai, Paul Hummel, Gregory E. Granato