Hydrologist
Email:
mweaver@usgs.gov
Office Phone:
717-730-6960
Location
215 Limekiln Road
New Cumberland
, PA
17070
US
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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...
Tags: Annual Exceedance Probability,
Annual Peak Flow,
Basin Characteristics,
Bulletin 17B,
Bulletin 17C, All tags...
Expected Moments Algorithm,
Federal Emergency Management Agency,
Flood Insurance Study,
Flood-Flow Computation,
Flood-Flow Estimate,
Flood-Flow Frequency,
Flood-Flow Regions,
Hydrology,
LP3,
Log-Pearson Type III,
Pennsylvania,
Pennsylvania StreamStats,
Period of Record,
Regional Flow Analysis,
Regression analysis,
Stream Gage,
USGS Science Data Catalog (SDC),
Ungaged Stream Flood Estimates,
Updated Regression Equations,
Water Resources,
Weighted Flood-Flow Estimates, Fewer tags
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The U.S. Geological Survey (USGS), in cooperation with the York County Planning Commission and York County Conservation District, has collected discrete stream samples for analysis of suspended-sediment, total nitrogen, and total phosphorus concentrations at six real-time streamflow and water-quality monitoring (turbidity, nitrate, and specific conductance) stations located in York County, Pennsylvania. Data were collected from 2019-2023 at these stations for the application of predicting suspended-sediment, total nitrogen, and total phosphorus concentrations using real-time continuous turbidity, nitrate, specific conductance, and streamflow. Regression equations were developed by relating discrete-sample suspended...
Categories: Data,
Data Release - Revised;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Pennsylvania,
USGS Science Data Catalog (SDC),
York,
nutrient content (water),
surface water quality, All tags...
suspended material (water),
suspended sediment, Fewer tags
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