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Results of peak-flow frequency analyses for 11 selected streamgages in Jefferson County, Montana, based on data through water year 2017 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for 11 selected streamgages in Jefferson County, Montana, that were based on methods described by Sando and McCarthy (2018). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Jefferson County, Montana, annual exceedance probability, hydrology, peak-flow frequency, All tags... streamflow, Fewer tags 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 WATSTORE Peak flow data for peak-flow frequency analyses for selected streamgages on tributaries of the Bighorn, Tongue, and Lower Yellowstone Rivers, based on data through water year 2021 This file (wymt_ffa_2021B_WATSTORE.txt) contains peak-flow input data for PeakFQ for peak-flow frequency analyses for selected streamgages based on data through water year 2021. The file format is called WATSTORE (National Water Data Storage and Retrieval System) available from NWISWeb (http://nwis.waterdata.usgs.gov/usa/nwis/peak). Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bighorn, Bighorn County, Land, Little Bighorn, Lower Bighorn, All tags... Lower Yellowstone, Montana, North America, Rosebud, Rosebud County, Tongue, Treasure County, USGS-CC Natural Hazards, United States, Yellowstone, Yellowstone County, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Results of peak-flow frequency analyses for Elk Creek at Augusta, Montana, based on data through water year 2018 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for Elk Creek at Augusta, Montana,, that were based on methods described by Sando and McCarthy (2018). Sando, S.K., and McCarthy, P.M., 2018, Methods for peak-flow frequency analysis and reporting for streamgages in or near Montana based... Categories: Data; Tags: Lewis and Clark County, Montana, annual exceedance probability, hydrology, peak-flow frequency, All tags... streamflow, Fewer tags Peak-flow frequency analyses for Elk Creek at Augusta, Montana, based on data through water year 2018 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for Elk Creek at Augusta, Montana, that were based on methods described by Sando and McCarthy (2018). Sando, S.K., and McCarthy, P.M., 2018, Methods for peak-flow frequency analysis and reporting for streamgages in or near Montana based... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Montana, USGS Science Data Catalog (SDC), Water Resources, annual exceedance probability, hydrology, All tags... peak-flow frequency, streamflow, Fewer tags PeakFQ version 7.3 specifications file for peak-flow frequency analyses for selected streamgages on the Bighorn, Tongue, and Lower Yellowstone Rivers and tributaries and Home Creek, Montana, based on data through water year 2021 This file (wymt_ffa_2021A.psf) contains specifications to run PeakFQ for peak-flow frequency analyses for selected streamgages based on data through water year 2021. Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bighorn, Bighorn County, Dawson County, Land, Little Bighorn, All tags... Lower Bighorn, Lower Yellowstone, Montana, North America, Richland County, Rosebud, Rosebud County, Tongue, Treasure County, USGS-CC Natural Hazards, United States, Yellowstone, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Peak-flow frequency analyses for selected streamgages on the Bighorn, Tongue, and Lower Yellowstone Rivers and tributaries and Home Creek, Montana, based on data through water year 2021 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 66.7-, 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for selected streamgages on the Bighorn, Tongue, and Lower Yellowstone Rivers and tributaries and Home Creek, Montana, that were based on methods described by Sando and McCarthy (2018). Citation: Sando, S.K., and McCarthy, P.M.,... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bighorn, Bighorn County, Dawson County, Hydrology, Land, All tags... Little Bighorn, Lower Bighorn, Lower Yellowstone, Montana, North America, Richland County, Rosebud, Rosebud County, Tongue, Treasure County, USGS Science Data Catalog (SDC), USGS-CC Natural Hazards, United States, Water Resources, Yellowstone, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Peak-flow frequency analyses for selected streamgages in and near the Milk River Basin, Montana, based on data through water year 2018, part 2 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 66.7-, 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for selected streamgages in and near the Milk River Basin, Montana, that were based on methods described by Sando and McCarthy (2018). Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hydrology, Land, Milk River, Milk River Headwaters, Montana, All tags... North America, USGS Science Data Catalog (SDC), USGS-CC Natural Hazards, United States, Upper Milk River, Water Resources, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Peak-flow frequency analyses for 14 selected streamgages in the Beaverhead River and Clark Fork Basins Montana, based on data through water year 2016 (ver. 1.1, September 2020) The USGS Wyoming-Montana Water Science Center (WY–MT WSC) recently completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. In association with the report, this data release presents peak-flow frequency analyses for 14 selected streamgages in the Beaverhead River and Clark Fork Basins that were based on methods described by Sando and McCarthy (2018). The results are presented in three child items: a child... Categories: Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Montana, USGS Science Data Catalog (SDC), Water Resources, annual exceedance probability, hydrology, All tags... peak-flow frequency, streamflow, Fewer tags WATSTORE Peak flow data for peak-flow frequency analyses for selected streamgages on the Bighorn, Tongue, and Lower Yellowstone Rivers and tributaries and Home Creek, Montana, based on data through water year 2021 This file (wymt_ffa_2021A_WATSTORE.txt) contains peak flow data for peak-flow frequency analyses for selected streamgages based on data through water year 2021. The file is in a text format called WATSTORE (National Water Data Storage and Retrieval System) available from NWISWeb (http://nwis.waterdata.usgs.gov/usa/nwis/peak). Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bighorn, Bighorn County, Dawson County, Land, Little Bighorn, All tags... Lower Bighorn, Lower Yellowstone, Montana, North America, Richland County, Rosebud, Rosebud County, Tongue, Treasure County, USGS-CC Natural Hazards, United States, Yellowstone, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags PeakFQ version 7.4 specifications file for peak-flow frequency analyses for selected streamgages in Dawson and Richland Counties, and the Powder River Basin, Montana, based on data through water year 2022 This file (wymt_ffa_2022A.psf) contains specifications to run PeakFQ version 7.4 for peak-flow frequency analyses for selected streamgages based on data through water year 2022. Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Charlie-Little Muddy, Custer County, Dawson County, Land, Little Powder, All tags... Lower Powder, Lower Yellowstone, Middle Powder, Montana, North America, Powder River County, Redwater, Richland County, USGS-CC Natural Hazards, United States, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags WATSTORE Peak-flow frequency analyses for selected streamgages in Dawson and Richland Counties, and the Powder River Basin, Montana, based on data through water year 2022 This file (wymt_ffa_2022A_WATSTORE.txt) contains peak-flow input data for PeakFQ for peak-flow frequency analyses for selected streamgages based on data through water year 2022. The file format is called WATSTORE (National Water Data Storage and Retrieval System) available from NWISWeb (http://nwis.waterdata.usgs.gov/usa/nwis/peak). Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Charlie-Little Muddy, Custer County, Dawson County, Land, Little Powder, All tags... Lower Powder, Lower Yellowstone, Middle Powder, Montana, North America, Powder River County, Redwater, Richland County, USGS-CC Natural Hazards, United States, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, 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 Results of peak-flow frequency analyses for selected streamgages in Dawson and Richland Counties, and the Powder River Basin, Montana, based on data through water year 2022 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 66.7-, 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected USGS streamgages. This data release presents peak-flow frequency analyses for selected streamgages in Dawson and Richland Counties, and the Powder River Basin, based on data through water year 2022, using methods described by Sando and McCarthy (2018). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Charlie-Little Muddy, Custer County, Dawson County, Land, Little Powder, All tags... Lower Powder, Lower Yellowstone, Middle Powder, Montana, North America, Powder River County, Redwater, Richland County, USGS-CC Natural Hazards, United States, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, 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 Peak-flow frequency analyses for 14 selected streamgages in the Ruby, Jefferson, and Madison River Basins, Montana, based on data through water year 2016 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) recently completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. In association with the report, this data release presents peak-flow frequency analyses for 14 selected streamgages in the Ruby, Jefferson, and Madison River Basins that were based on methods described by Sando and McCarthy (2018). The results are presented in three child items: a... Categories: Data; Tags: Montana, USGS Science Data Catalog (SDC), Water Resources, annual exceedance probability, hydrology, All tags... peak-flow frequency, streamflow, Fewer tags Worksheet for computing annual exceedance probability flood discharges and prediction intervals at stream sites in Connecticut The U.S. Geological Survey (USGS), in cooperation with Connecticut Department of Transportation, completed a study to improve flood-frequency estimates in Connecticut. This companion data release is a Microsoft Excel workbook for: (1) computing flood discharges for the 50- to 0.2-percent annual exceedance probabilities from peak-flow regression equations, and (2) computing additional prediction intervals, not available through the USGS StreamStats web application. The current StreamStats application (version 4) only computes the 90-percent prediction interval for stream sites in Connecticut. The Excel workbook can be used to compute the 70-, 80-, 90-, 95-, and 99-percent prediction intervals. The prediction interval... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Connecticut, Hydrology, USGS Science Data Catalog (SDC), Water Resources, annual exceedance probability, All tags... average standard error of prediction, flood frequency, prediction interval, Fewer tags Peak-flow frequency analyses for selected streamgages in Carbon County, Montana, based on data through water year 2018 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) documented (Sando and McCarthy, 2018) methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for selected streamgages in Carbon County, Montana, that were based on methods described by Sando and McCarthy (2018). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Carbon County, Montana, USGS Science Data Catalog (SDC), annual exceedance probability, hydrology, All tags... peak-flow frequency, streamflow, Fewer tags PeakFQ version 7.4 specifications file for peak-flow frequency analyses for selected streamgages on tributaries of the Bighorn, Tongue, and Lower Yellowstone Rivers, based on data through water year 2021 This file (wymt_ffa_2021B.psf) contains specifications to run PeakFQ version 7.4 for peak-flow frequency analyses for selected streamgages based on data through water year 2021. Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bighorn, Bighorn County, Land, Little Bighorn, Lower Bighorn, All tags... Lower Yellowstone, Montana, North America, Rosebud, Rosebud County, Tongue, Treasure County, USGS-CC Natural Hazards, United States, Yellowstone, Yellowstone County, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags 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... 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 1 2 »