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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

Regression analysis

Other Subject Keywords

Weighted Flood-Flow Estimates, Stream Gage, Flood-Flow Estimate, Annual Exceedance Probability, Federal Emergency Management Agency, Expected Moments Algorithm, Bulletin 17C, Updated Regression Equations, Annual Peak Flow, Flood Insurance Study, Ungaged Stream Flood Estimates, Period of Record, Flood-Flow Frequency, Pennsylvania StreamStats, Bulletin 17B, Flood-Flow Computation, Log-Pearson Type III, LP3, Basin Characteristics, Regional Flow Analysis, Flood-Flow Regions

Place Keywords

Pennsylvania

USGS-derived 1-percent Annual Exceedance Probability Flood-Flow Estimates at Flood Insurance Study Locations Across Pennsylvania

One-percent annual exceedance probability (AEP) flood-flow estimates were computed at flood insurance study (FIS) locations across Pennsylvania using methods identified in Scientific Investigation Report (SIR) 2019-5094. Following guidance outlined in SIR 2016-5149, valid statistical reaches (VSRs) were identified for streamgages, which were used to assist with the determination of the applicable method used to compute a USGS-derived 1-percent AEP flood-flow estimate at an FIS location. Methods included: weighting, weighting and transferring, and regression equations. The USGS-derived 1-percent AEP flood-flow estimates were then compared to 1-percent AEP flood-flow estimates published in FIS's and furnished by the Federal Emergency Management Agency (FEMA).

Get Data and Metadata
Author(s) Mitchell R Weaver, Mark A Roland orcid, James E Colgin orcid, Marla H Stuckey orcid
Publication Date 2022-03-30
Beginning Date of Data 1787
Ending Date of Data 2015
Data Contact
Mitchell R Weaver
DOI https://doi.org/10.5066/P9FG2MF2
Citation Weaver, M.R., Roland, M.A., Colgin, J.E., and Stuckey, M.H., 2022, USGS-derived 1-percent Annual Exceedance Probability Flood-Flow Estimates at Flood Insurance Study Locations Across Pennsylvania: U.S. Geological Survey data release, https://doi.org/10.5066/P9FG2MF2.
Metadata Contact
Linda F Zarr
Metadata Date 2022-03-30
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Citations of these data

Loading https://doi.org/10.3133/sir20235133
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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2024-07-29T04:01:24.000Z