Padraic S O'Shea

Peak-flow frequency analysis for seven selected U.S. Geological Survey streamgages in the Floyd and Little Sioux River Basins, Iowa, based on data through water year 2019

This data release presents peak-flow frequency analyses by the U.S. Geological Survey based on methods described by Eash and others (2013) for streamgages 06600100, Floyd River at Alton, Iowa; 06600300, West Branch Floyd River near Struble, Iowa; 06600500, Floyd River near James, Iowa; 06605000, Ocheyedan River near Spencer, Iowa; 06605850, Little Sioux River at Linn Grove, Iowa; 06607200, Maple River at Mapleton, Iowa; and 06607500, Little Sioux River near Turin, Iowa. These methods are used to provide estimates of peak-flow quantiles for 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs). Annual peak-flow data used in the peak-flow frequency analyses for these streamgages were...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Floyd River, Hydrology, Iowa, Little Sioux River, USGS Science Data Catalog (SDC), All tags... Water Resources, annual exceedance probability, hydrology, peak-flow frequency, streamflow, Fewer tags

Peak-flow frequency analysis for U.S. Geological Survey streamgage 06810000 Nishnabotna River above Hamburg, Iowa, in the Nishnabotna River Basin, Iowa, based on data through water year 2020

This data release presents a peak-flow frequency analysis (Eash and others, 2013) for U.S. Geological Survey streamgage 06810000 Nishnabotna River above Hamburg, Iowa. These methods are used to provide estimates of peak-flow quantiles for 50-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs). Annual peak-flow data used in the peak-flow frequency analysis for this streamgage was retrieved from the U.S. Geological Survey National Water Information System database (U.S. Geological Survey, 2021) and used with USGS flood-frequency analysis software PeakFQ (Veilleux and others, 2014). This data release contains annual peak-flow data (nishnabotna_2020_WATSTORE.txt), PeakFQ specifications...

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hamburg, Iowa, Nishnabotna River, USGS Science Data Catalog (SDC), Water Resources, All tags... annual exceedance probability, floods, hazard preparedness, hazards, hydrology, peak-flow frequency, statistical analysis, streamflow, time series analysis, Fewer tags

Peak-Flow Frequency Analysis for U.S. Geological Survey Streamgage 05481510 Bluff Creek at Pilot Mound, Iowa, in the Des Moines River Basin, Iowa, Based on Data Through Water Year 2021

This data release presents a peak-flow frequency analysis for U.S. Geological Survey streamgage 05481510 Bluff Creek at Pilot Mound, Iowa. The annual peak-flow record at this streamgage consists of both a discrete crest-stage period and a continuous partial-record period. The streamgage, which is in the Des Moines River Basin, is located on 130th Street in Pilot Mound, Iowa. Drainage area at the streamgage is 23.5 square miles. Annual peak-flow data are available for the period 1966-2021. The peak of record, 1,290 cubic feet per second, occurred on June 16, 1990. The annual peak-flow data used in the frequency analysis were downloaded from the U.S. Geological Survey National Water Information System database (U.S....

Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bluff Creek, Hydrology, Iowa, Pilot Mound, USGS Science Data Catalog (SDC), All tags... Water Resources, annual exceedance probability, floods, hazard preparedness, hazards, hydrology, peak-flow frequency, statistical analysis, streamflow, time series analysis, Fewer tags

The U.S. Geological Survey Central Midwest Water Science Center completed a report (Over and others, 2023) documenting methods, results, and applications of an updated flood-frequency study for the State of Illinois. This landing page contains data releases associated with Over and others (2023), which include data related to the peak-flow frequency analysis at streamgages in Illinois, digital datasets of basin characteristics considered in the study, hydro-conditioned geographic information systems (GIS) layers used in the Illinois StreamStats application, and tables of data used to develop regional regression equations for ungaged areas of Illinois. References Cited: Over, T.M., Marti, M.K., O'Shea, P.S., Sharpe,...

Multi-Agency Gage Height and Discharge Datasets for Selected Streamgages on the Missouri River from 10/01/1936 to 12/31/2018

This dataset includes data for 12 selected streamgages on the Missouri River from 10/01/1936 through 12/31/2018. The data include time series of gage height at the following U.S. Geological Survey (USGS) streamgages: 06601200 Missouri River at Decatur, Nebraska 06609100 Missouri River at Blair, Nebraska 06805600 Missouri River at Plattsmouth, Nebraska 06810070 Missouri River at Brownville, Nebraska 06815990 Missouri River at Oregon, Missouri Time series of gage height and discharge and rating tables are provided for the following USGS streamgages: 06486000 Missouri River at Sioux City, Iowa 06610000 Missouri River at Omaha, Nebraska 06807000 Missouri River at Nebraska City, Nebraska 06813500 Missouri River at Rulo,...

Categories: Data; Tags: Blair, Brownville, Decatur, Discharge, Gage Height, All tags... Iowa, Kansas City, Missouri, Missouri River, Nebraska, Nebraska City, Omaha, Oregon, Plattsmouth, Rulo, Sioux City, South Dakota, St. Joseph, Stage, Streamflow, USGS Science Data Catalog (SDC), Water Resources, Fewer tags