USGS-derived 1-percent Annual Exceedance Probability Flood-Flow Estimates at Flood Insurance Study Locations Across Pennsylvania
March 31, 2022
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).
Citation Information
Publication Year | 2022 |
---|---|
Title | USGS-derived 1-percent Annual Exceedance Probability Flood-Flow Estimates at Flood Insurance Study Locations Across Pennsylvania |
DOI | 10.5066/P9FG2MF2 |
Authors | Mitchell R Weaver, Mark A Roland, James E Colgin, Marla H Stuckey |
Product Type | Data Release |
Record Source | USGS Asset Identifier Service (AIS) |
USGS Organization | Pennsylvania Water Science Center |
Rights | This work is marked with CC0 1.0 Universal |
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Estimation and comparison of 1-percent annual exceedance probability flood flows at Federal Emergency Management Agency flood insurance study flow locations across Pennsylvania
Flood-flow estimates were computed at over 5,000 Federal Emergency Management Agency (FEMA) flood insurance study (FIS) flow locations across Pennsylvania for the 1-percent annual exceedance probability flood event (1-percent AEP). Depending on a point of interest’s proximity to a streamgage, weighting techniques may be applied to obtain flood-flow estimates for ungaged flow locations...
Authors
Mitchell R. Weaver, Marla H. Stuckey, James E. Colgin, Mark A. Roland
Mark A Roland (Former Employee)
Hydrologist / Flood Response Unit Lead
Hydrologist / Flood Response Unit Lead
Marla Stuckey
Surface Water Specialist
Surface Water Specialist
Email
Phone
Related
Estimation and comparison of 1-percent annual exceedance probability flood flows at Federal Emergency Management Agency flood insurance study flow locations across Pennsylvania
Flood-flow estimates were computed at over 5,000 Federal Emergency Management Agency (FEMA) flood insurance study (FIS) flow locations across Pennsylvania for the 1-percent annual exceedance probability flood event (1-percent AEP). Depending on a point of interest’s proximity to a streamgage, weighting techniques may be applied to obtain flood-flow estimates for ungaged flow locations...
Authors
Mitchell R. Weaver, Marla H. Stuckey, James E. Colgin, Mark A. Roland
Mark A Roland (Former Employee)
Hydrologist / Flood Response Unit Lead
Hydrologist / Flood Response Unit Lead
Marla Stuckey
Surface Water Specialist
Surface Water Specialist
Email
Phone