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).
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
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|
| contactPoint |
{
"fn": "Mitchell R Weaver",
"@type": "vcard:Contact",
"hasEmail": "mailto:mweaver@usgs.gov"
}
|
| description | 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). |
| distribution |
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| identifier | http://datainventory.doi.gov/id/dataset/USGS_60367b40d34eb12031174c34 |
| keyword |
[
"Annual Exceedance Probability",
"Annual Peak Flow",
"Basin Characteristics",
"Bulletin 17B",
"Bulletin 17C",
"Expected Moments Algorithm",
"Federal Emergency Management Agency",
"Flood Insurance Study",
"Flood-Flow Computation",
"Flood-Flow Estimate",
"Flood-Flow Frequency",
"Flood-Flow Regions",
"LP3",
"Log-Pearson Type III",
"Pennsylvania StreamStats",
"Period of Record",
"Regional Flow Analysis",
"Regression analysis",
"Stream Gage",
"USGS:60367b40d34eb12031174c34",
"Ungaged Stream Flood Estimates",
"Updated Regression Equations",
"Weighted Flood-Flow Estimates"
]
|
| modified | 2022-03-30T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -80.76472, 39.62175, -74.79722, 42.76722 |
| theme |
[
"Geospatial"
]
|
| title | USGS-derived 1-percent Annual Exceedance Probability Flood-Flow Estimates at Flood Insurance Study Locations Across Pennsylvania |
