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Estimated quantiles for the pour points of 9,203 level-12 hydrologic unit codes in the southeastern United States, 1950--2009

Dates

Publication Date
Start Date
1950
End Date
2009

Citation

Worland, S.C., Knight, R.R., and Asquith, W.H., 2019, Estimated quantiles for the pour points of 9,203 level-12 hydrologic unit codes in the southeastern United States, 1950--2009: U.S. Geological Survey data release, https://doi.org/10.5066/P9YGKZZV.

Summary

This page contains 15 estimated quantiles for 9,203 level-12 Hydrologic Unit Code in the Southeastern United States for the decades 1950-1959, 1960-1969, 1970-1979, 1980-1989, 1990-1999, and 2000-2009. A multi-output neural network was used to generate the estimated quantiles (Worland and others, 2019). The R scripts that generated the predictions are also included along with a README file. The 15 quantiles are associated with the following 15 non-exceedance probabilities (NEPs): 0.0003, 0.0050, 0.0500, 0.1000, 0.2000, 0.3000, 0.4000, 0.5000, 0.6000, 0.7000, 0.8000, 0.9000, 0.9500, 0.9950, and 0.9997. The quantiles were calculated using the Weibull plotting position (more details can be found in the accompanying manuscript). In addition [...]

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Attached Files

Click on title to download individual files attached to this item.

util_funs.R
“utility functions”
3.88 KB text/x-rsrc
fdc_predictions_huc12s.csv
“FDC estimates”
171.96 MB text/csv
fdc_est.R
“main R script”
19.2 KB text/x-rsrc
plot_funs.R
“plotting functions”
19.15 KB text/x-rsrc
tune_layers.R
“tune neural network layers”
4.46 KB text/x-rsrc
thumbnail.png
“example of estimated FDCs (with uncertainty bounds) for 3 HUC12s and 6 decades”
thumbnail 269.26 KB image/png
README.pdf
“README”
1.69 MB application/pdf

Purpose

The quantiles were estimated to obtain flow-duration curves for ungaged locations.
example of estimated FDCs (with uncertainty bounds) for 3 HUC12s and 6 decades
example of estimated FDCs (with uncertainty bounds) for 3 HUC12s and 6 decades

Map

Communities

  • USGS Data Release Products
  • USGS Lower Mississippi-Gulf Water Science Center

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Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9YGKZZV

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