Modeled and observed trends at reference basins in the conterminous U.S. from October 1, 1983 through September 30, 2016
Dates
Publication Date
2020-06-18
Start Date
1983-10-01
End Date
2016-09-30
Citation
Dudley, R.W., and Hodgkins, G.A., 2020, Modeled and observed trends at reference basins in the conterminous U.S. from October 1, 1983 through September 30, 2016: U.S. Geological Survey data release, https://doi.org/10.5066/P9IP9K11.
Summary
This data release contains trend results computed on the basis of modeled and observed daily streamflows at 502 reference gages across the conterminous U.S. from October 1, 1983 through September 30, 2016. Modeled daily streamflows were computed using the deterministic Precipitation Runoff Modeling System (PRMS), and five statistical techniques: Nearest-Neighbor Drainage Area Ratio (NNDAR), Map-Correlation Drainage Area Ratio (MCDAR), Ordinary Kriging of the logarithms of discharge per unit area (OKDAR), Nearest-Neighbor nonlinear spatial interpolation using flow duration curves (NNQPPQ), and Map-Correlation nonlinear spatial interpolation using flow duration curves (MCQPPQ). Observed daily streamflow data for the study gages were [...]
Summary
This data release contains trend results computed on the basis of modeled and observed daily streamflows at 502 reference gages across the conterminous U.S. from October 1, 1983 through September 30, 2016. Modeled daily streamflows were computed using the deterministic Precipitation Runoff Modeling System (PRMS), and five statistical techniques: Nearest-Neighbor Drainage Area Ratio (NNDAR), Map-Correlation Drainage Area Ratio (MCDAR), Ordinary Kriging of the logarithms of discharge per unit area (OKDAR), Nearest-Neighbor nonlinear spatial interpolation using flow duration curves (NNQPPQ), and Map-Correlation nonlinear spatial interpolation using flow duration curves (MCQPPQ). Observed daily streamflow data for the study gages were retrieved from the National Water Information System (NWIS). Study gages were selected from among Hydro-Climatic Data Network 2009 (HCDN-2009) gages in the GAGES-II dataset considered to be minimally affected by regulation, diversion, mining, or other anthropogenic activities. Results include trends in annual and monthly means, annual percentiles (1, 5, 10, 25, 50, 75, 90, 95, 99), annual 1-day high, 3-day high, and 7-day low, and annual snowmelt-related runoff timing for a subset of snowmelt dominated basins. Bias and volumetric efficiency statistics between observed and modeled streamflows also are provided.
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trends_reference_basins.xml Original FGDC Metadata
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78.35 KB
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nwis_obs.zip
53.96 MB
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trends_reference_basins.zip
1.61 MB
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Purpose
Trends in observed and modeled streamflow were computed in order to investigate how well trends in modeled streamflows are reproduced relative to observed trends. This work was supported by the U.S. Geological Survey’s Water Budget Estimation and Evaluation Project (WBEEP).
