Filters: Tags: flood frequency (X) > Types: OGC WMS Service (X)

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PeakFQ output files for selected streamflow gaging stations operated by the U.S. Geological Survey in the New England region that were used to estimate regional skewness of annual peak flows "NewEngland_pkflows.PRT" is a text file that contains results of flood-frequency analysis of annual peak flows from 186 selected streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) in the New England region (Maine, Connecticut, Massachusetts, Rhode Island, New York, New Hampshire, and Vermont). Only streamgages in the region that were also in the USGS "GAGES II" database (https://water.usgs.gov/GIS/metadata/usgswrd/XML/gagesII_Sept2011.xml) were considered for use in the study. The file was generated by combining PeakFQ output (.PRT) files created using version 7.0 of USGS software PeakFQ (https://water.usgs.gov/software/PeakFQ/; Veilleux and others, 2014) to conduct flood-frequency... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bayesian regression, Bulletin 17B, Connecticut, EMA, Expected Moments Algorithm, All tags... Great Lakes Region - 2-digit Hydrologic Unit Code - 04, Maine, Massachusetts, Mid-Atlantic Region - 2-digit Hydrologic Unit Code - 02, New England Region - 2-digit Hydrologic Unit Code - 01, New Hampshire, New York, PeakFQ, Rhode Island, Vermont, flood frequency, regional skew, Fewer tags River stage-specific GIS data layers depicting suitable habitat for Alligator Gar spawning in the lower Trinity River of Texas This dataset features suitable habitat at discharges from 15,000 cfs to 100,000 cfs. The spatial extent for floodplain inundation modeling in the lower Trinity River was from Romayor, Texas, to approximately Moss Bluff, Texas. River sections were modeled using steady flow conditions. For the upper section, discharge and stage were both available for the two gages (Romayor USGS 08066500 and Liberty USGS 08067000). For the lower section, the Moss Bluff gage (USGS 08067100) is tidally-influenced, so gage height didn’t correspond to upstream changes in discharge. Depth rasters were exported from HEC-RAS 5.0.0. Since the lower section had large over- and underestimates, depth values were sampled along the intersection... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Complete, Conservation NGOs, Data, Data.gov Gulf Coast Prairie Landscape Conservation Cooperative, All tags... EARTH SCIENCE, FLOOD FREQUENCY, FLOODS, Federal resource managers, LCC Network Science Catalog, Policy makers & regulators, SURFACE WATER, SURFACE WATER PROCESSES/MEASUREMENTS, State agencies, TERRESTRIAL HYDROSPHERE, inlandWaters, Fewer tags River stage-specific GIS data layers depicting floodplain inundation in the lower Trinity River of Texas This dataset features inundated areas at discharges from 15,000 cfs to 100,000 cfs. The spatial extent for floodplain inundation modeling in the lower Trinity River was from Romayor, Texas, to approximately Moss Bluff, Texas. River sections were modeled using steady flow conditions. For the upper section, discharge and stage were both available for the two gages (Romayor USGS 08066500 and Liberty USGS 08067000). For the lower section, the Moss Bluff gage (USGS 08067100) is tidally-influenced, so gage height didn’t correspond to upstream changes in discharge. To model river stage specific inundation for the upper section, discharge for each Landsat 8 overpass date was entered as the upstream condition and the corresponding... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Complete, Conservation NGOs, Data, Data.gov Gulf Coast Prairie Landscape Conservation Cooperative, All tags... EARTH SCIENCE, FLOOD FREQUENCY, FLOODS, Federal resource managers, LCC Network Science Catalog, Policy makers & regulators, SURFACE WATER, SURFACE WATER PROCESSES/MEASUREMENTS, State agencies, TERRESTRIAL HYDROSPHERE, inlandWaters, Fewer tags Annual peak-flow data and PeakFQ output files for selected streamflow gaging stations operated by the U.S. Geological Survey in the New England region that were used to estimate regional skewness of annual peak flows This data release contains annual peak-flow data and PeakFQ output files for 186 selected streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) in the New England region (Maine, Connecticut, Massachusetts, Rhode Island, New York, New Hampshire, and Vermont). The annual peak-flow data were obtained from the USGS National Water Information System (NWIS) database (https://nwis.waterdata.usgs.gov/usa/nwis/peak) and contain annual peak flows ending in water year 2011. The annual peak flows were used in version 7.0 of USGS software PeakFQ (https://water.usgs.gov/software/PeakFQ/; Veilleux and others, 2014; Flynn and others, 2006) to conduct flood-frequency analyses using the Expected Moments... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bayesian regression, Bulletin 17B, Connecticut, EMA, Expected Moments Algorithm, All tags... Great Lakes Region - 2-digit Hydrologic Unit Code - 04, Maine, Massachusetts, Mid-Atlantic Region - 2-digit Hydrologic Unit Code - 02, New England Region - 2-digit Hydrologic Unit Code - 01, New Hampshire, New York, PeakFQ, Rhode Island, USGS Science Data Catalog (SDC), Vermont, Water Resources, flood frequency, regional skew, Fewer tags Flood frequency and source data used in the regional regression analysis of annual peak flows in Connecticut (2020) (ver. 2.0, April 2021) Current estimates of the magnitude and frequency of floods at gaged and ungaged stream sites are critical for assessing flood risk, delineating flood zones, designing hydraulic structures, and managing flood plains. The Connecticut Department of Transportation collaborated with U.S. Geological Survey (USGS) in a study to improve the flood-frequency estimates in Connecticut and develop regional regression equations for estimating annual exceedance probability discharges at ungaged sites in Connecticut. The results of the study are found in Scientific Investigations Report (http://doi.org/10.3133/sir20205054). This companion data release consists of data compiled and used for the flood-frequency analysis of annual... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Connecticut, Massachusetts, New York, Rhode Island, USGS Science Data Catalog (SDC), All tags... annual exceedance probability discharges, flood frequency, peak flows, regional regression equation, Fewer tags Peak-flow files for 186 selected streamflow gaging stations operated by the U.S. Geological Survey in the New England region that were used to estimate regional skewness of annual peak flows "NewEngland_pkflows.txt" contains annual peak-flow data for 186 selected streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) in the New England region (Maine, Connecticut, Massachusetts, Rhode Island, New York, New Hampshire, and Vermont). Only streamgages in the region that were also in the USGS "GAGES II" database (https://water.usgs.gov/GIS/metadata/usgswrd/XML/gagesII_Sept2011.xml) were considered for use in the study. The annual peak-flow data were obtained from the USGS National Water Information System (NWIS) database (https://nwis.waterdata.usgs.gov/usa/nwis/peak) and contain annual peak flows ending in water year 2011. The annual peak flows were used in version 7.0 of... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bayesian regression, Bulletin 17B, Connecticut, EMA, Expected Moments Algorithm, All tags... Great Lakes Region - 2-digit Hydrologic Unit Code - 04, Maine, Massachusetts, Mid-Atlantic Region - 2-digit Hydrologic Unit Code - 02, New England Region - 2-digit Hydrologic Unit Code - 01, New Hampshire, New York, PeakFQ, Rhode Island, Vermont, flood frequency, regional skew, Fewer tags River stage-specific GIS data layers depicting suitable connected habitat for Alligator Gar spawning within managed areas in the lower Trinity River of Texas This dataset features suitable habitat connected to the main channel (based on floodplain inundation) within managed areas at discharges from 15,000 cfs to 100,000 cfs. The spatial extent for floodplain inundation modeling in the lower Trinity River was from Romayor, Texas, to approximately Moss Bluff, Texas. River sections were modeled using steady flow conditions. For the upper section, discharge and stage were both available for the two gages (Romayor USGS 08066500 and Liberty USGS 08067000). For the lower section, the Moss Bluff gage (USGS 08067100) is tidally-influenced, so gage height didn’t correspond to upstream changes in discharge. Depth rasters were exported from HEC-RAS 5.0.0. Since the lower section... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Complete, Conservation NGOs, Data, Data.gov Gulf Coast Prairie Landscape Conservation Cooperative, All tags... EARTH SCIENCE, FLOOD FREQUENCY, FLOODS, Federal resource managers, LCC Network Science Catalog, Policy makers & regulators, SURFACE WATER, SURFACE WATER PROCESSES/MEASUREMENTS, State agencies, TERRESTRIAL HYDROSPHERE, inlandWaters, Fewer tags Flood-frequency of rural, non-tidal streams in Louisiana and parts of Arkansas, Mississippi, and Texas, 1877-2016 The dataset includes flood-frequency data and related files for 211 streamgages operated by the U.S. Geological Survey (USGS) in Louisiana and parts of the surrounding states of Arkansas, Mississippi, and Texas as well as assembled explanatory variables (physical, climatic, and land-use characteristics of the basins). The data in this release were used in generalized least-squares (GLS ) regression analyses (Stedinger and Tasker, 1985) to generate equations used to predict annual exceedance probabilities (AEPs) at ungaged locations on streams in the study area (Ensminger and others, 2021). Flood-frequency analyses were conducted using annual peak-flow data from the 1877-2016 water years to estimate streamflows... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Hydrology, Louisiana, Mississippi, Ouachita River, All tags... Red River, Sabine River, Texas, USGS Science Data Catalog (SDC), Water Resources, basin characteristics, flood frequency, linear regression, weighted regression, 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 River stage-specific GIS data layers depicting suitable depth for Alligator Gar spawning in the lower Trinity River of Texas This dataset features suitable depth (0.2 m ≤ depth ≤ 2.0 m) at discharges from 15,000 cfs to 100,000 cfs. The spatial extent for floodplain inundation modeling in the lower Trinity River was from Romayor, Texas, to approximately Moss Bluff, Texas. River sections were modeled using steady flow conditions. For the upper section, discharge and stage were both available for the two gages (Romayor USGS 08066500 and Liberty USGS 08067000). For the lower section, the Moss Bluff gage (USGS 08067100) is tidally-influenced, so gage height didn’t correspond to upstream changes in discharge. Depth rasters were exported from HEC-RAS 5.0.0. Since the lower section had large over- and underestimates, depth values were sampled... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Complete, Conservation NGOs, Data, Data.gov Gulf Coast Prairie Landscape Conservation Cooperative, All tags... EARTH SCIENCE, FLOOD FREQUENCY, FLOODS, Federal resource managers, LCC Network Science Catalog, Policy makers & regulators, SURFACE WATER, SURFACE WATER PROCESSES/MEASUREMENTS, State agencies, TERRESTRIAL HYDROSPHERE, inlandWaters, Fewer tags PeakFQ program input and output files for selected streamgages in Connecticut Flood-frequency analyses for 141 streamgages in Connecticut were updated using the U.S. Geological Survey program PeakFQ, version 7.2 (https://water.usgs.gov/software/PeakFQ/; Veilleux and others, 2014). The PeakFQ program follows Bulletin 17C national guidelines for flood-frequency analysis (https://doi.org/10.3133/tm4B5). The input and output files to PeakFQ that were used in the Connecticut flood-frequency update are presented. Individual file folders for the 141 streamgages using the streamgage identification number as the folder name contain three files: ".TXT" file used as input to PeakFQ contains the annual peak flows for the streamgage in standard PeakFQ (WATSTORE) text format available from NWIS web at... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Connecticut, PeakFQ, flood frequency, peak flows River stage-specific GIS data layers depicting floodplain depth in the lower Trinity River of Texas This dataset features floodplain depth (in meters) at discharges from 15,000 cfs to 100,000 cfs. The spatial extent for floodplain inundation modeling in the lower Trinity River was from Romayor, Texas, to approximately Moss Bluff, Texas. River sections were modeled using steady flow conditions. For the upper section, discharge and stage were both available for the two gages (Romayor USGS 08066500 and Liberty USGS 08067000). For the lower section, the Moss Bluff gage (USGS 08067100) is tidally-influenced, so gage height didn’t correspond to upstream changes in discharge. Depth rasters were exported from HEC-RAS 5.0.0. Since the lower section had large over- and underestimates, depth values were sampled along the... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Complete, Conservation NGOs, Data, Data.gov Gulf Coast Prairie Landscape Conservation Cooperative, All tags... EARTH SCIENCE, FLOOD FREQUENCY, FLOODS, Federal resource managers, LCC Network Science Catalog, Policy makers & regulators, SURFACE WATER, SURFACE WATER PROCESSES/MEASUREMENTS, State agencies, TERRESTRIAL HYDROSPHERE, inlandWaters, Fewer tags River stage-specific GIS data layers depicting suitable connected habitat for Alligator Gar spawning in the lower Trinity River of Texas This dataset features suitable habitat connected to the main channel (based on floodplain inundation) at discharges from 15,000 cfs to 100,000 cfs. The spatial extent for floodplain inundation modeling in the lower Trinity River was from Romayor, Texas, to approximately Moss Bluff, Texas. River sections were modeled using steady flow conditions. For the upper section, discharge and stage were both available for the two gages (Romayor USGS 08066500 and Liberty USGS 08067000). For the lower section, the Moss Bluff gage (USGS 08067100) is tidally-influenced, so gage height didn’t correspond to upstream changes in discharge. Depth rasters were exported from HEC-RAS 5.0.0. Since the lower section had large over- and... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Complete, Conservation NGOs, Data, Data.gov Gulf Coast Prairie Landscape Conservation Cooperative, All tags... EARTH SCIENCE, FLOOD FREQUENCY, FLOODS, Federal resource managers, LCC Network Science Catalog, Policy makers & regulators, SURFACE WATER, SURFACE WATER PROCESSES/MEASUREMENTS, State agencies, TERRESTRIAL HYDROSPHERE, inlandWaters, Fewer tags At-site flood frequency for 139 urban streamgages in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina using data through water year 2022 This dataset contains site information and results of flood-frequency analysis for 139 urban streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) in Tennessee and parts of Alabama, Georgia, Mississippi, North Carolina, and South Carolina. Developed imperviousness in the basins, based on the 2011 National Land Cover Database, was at least 10 percent (Homer and others, 2015). Drainage areas of the streamgage basins ranged from 0.15 - 161 square miles. Annual peak-flow data from the 1947 - 2022 water years were used in the study (U.S. Geological Survey, 2024). Peak-flow (.pkf), specification (.psf), output (.PRT), and export (.EXP) files from flood-frequency analysis in USGS PeakFQ... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Georgia, Lower Mississippi Region - 2-digit Hydrologic Unit Code - 08, Mississippi, North Carolina, All tags... Ohio Region - 2-digit Hydrologic Unit Code - 05, South Carolina, South-Atlantic-Gulf Region - 2-digit Hydrologic Unit Code - 03, Tennessee, Tennessee Region - 2-digit Hydrologic Unit Code - 06, USGS Science Data Catalog (SDC), Water Resources, developed imperviousness, flood frequency, Fewer tags Annual peak-flow data, PeakFQ specification files and PeakFQ output files for 368 selected streamflow gaging stations operated by the U.S. Geological Survey in the Great Lakes and Ohio River basins that were used to estimate regional skewness of annual peak flows This dataset contains annual peak-flow data, PeakFQ specifications, and results of flood-frequency analyses of annual peak flows for 368 selected streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) in the Great Lakes and Ohio River basins. "PeakFQinput_all.txt" contains annual peak-flow data, ending in water year 2013, for all 368 streamgages in the study area. Annual peak-flow data were obtained from the USGS National Water Information System (NWIS) database (https://nwis.waterdata.usgs.gov/usa/nwis/peak). "PeakFQspec_all.psf" contains PeakFQ specifications for all 368 streamgages in the study area. The specifications were developed by hydrologists in the various USGS Water Science... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bayesian regression, Bulletin 17C, EMA, Expected Moments Algorithm, Great Lakes Region - 2-digit Hydrologic Unit Code - 04, All tags... Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Ohio Region - 2-digit Hydrologic Unit Code - 05, PeakFQ, Pennsylvania, USGS Science Data Catalog (SDC), Water Resources, Wisconsin, flood frequency, regional skew, Fewer tags Quantification of Alligator Gar Recruitment Dynamics Using a River-Stage Specific Floodplain Inundation Model Alligator Gar, Atractosteus spatula, is an iconic species native to lowland floodplain river systems where they play an important role as top predators and by linking landscapes through their movement. Alligator Gar is also an important native fisheries species in the Trinity River. Disruption of river-floodplain connectivity is implicated in declining populations of Alligator Gar across much of its range. Successful management and conservation of Alligator Gar populations will be aided by an understanding of the relationship between flow and recruitment, particularly the availability and suitability of off-channel habitats utilized by this species for reproduction. Categories: Data, Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2015, 2016, 2017, 2018, Academics & scientific researchers, All tags... Alligator Gar, Complete, Conservation Design, Conservation NGOs, Datasets/Database, Decision Support, EARTH SCIENCE, FLOOD FREQUENCY, FLOODS, Federal resource managers, Gulf Coast Prairie Landscape Conservation Cooperative, LCC, LCC Network Science Catalog, Map, Policy makers & regulators, Population & Habitat Evaluation/Projection, Project, Report, SURFACE WATER, SURFACE WATER PROCESSES/MEASUREMENTS, State agencies, TERRESTRIAL HYDROSPHERE, TX-02, TX-03, TX-05, TX-06, TX-08, TX-12, TX-14, TX-17, TX-24, TX-26, TX-30, TX-32, Tennessee, Texas, Trinity River, biota, inundation, onGoing, Fewer tags Annual peak-flow data and results of flood-frequency analyses for 76 selected streamflow gaging stations operated by the U.S. Geological Survey in the upper White River Basin, Missouri and Arkansas, computed using an updated generalized flood skew This dataset contains site information, basin characteristics, results of flood-frequency analysis, and a generalized (regional) flood skew for 76 selected streamgages operated by the U.S. Geological Survey (USGS) in the upper White River basin (4-digit hydrologic unit 1101) in southern Missouri and northern Arkansas. The Little Rock District U.S. Army Corps of Engineers (USACE) needed updated estimates of streamflows corresponding to selected annual exceedance probabilities (AEPs) and a basin-specific regional flood skew. USGS selected 111 candidate streamgages in the study area that had 20 or more years of gaged annual peak-flow data available through the 2020 water year. After screening for regulation, urbanization,... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Arkansas, Hydrology, Missouri, USGS Science Data Catalog (SDC), Water Resources, All tags... White River, flood frequency, regional skew, weighted mean, Fewer tags River stage-specific GIS data layers depicting connectivity based on inundation in the lower Trinity River of Texas This dataset features inundated areas connected to the main channel at discharges from 15,000 cfs to 95,000 cfs. The spatial extent for floodplain inundation modeling in the lower Trinity River was from Romayor, Texas, to approximately Moss Bluff, Texas. River sections were modeled using steady flow conditions. For the upper section, discharge and stage were both available for the two gages (Romayor USGS 08066500 and Liberty USGS 08067000). For the lower section, the Moss Bluff gage (USGS 08067100) is tidally-influenced, so gage height didn’t correspond to upstream changes in discharge. To model river stage specific inundation for the upper section, discharge for each Landsat 8 overpass date was entered as the upstream... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, Alligator Gar, Complete, Conservation Design, Conservation NGOs, All tags... Data, Data.gov Gulf Coast Prairie Landscape Conservation Cooperative, Decision Support, EARTH SCIENCE, EARTH SCIENCE, FLOOD FREQUENCY, FLOOD FREQUENCY, FLOODS, FLOODS, Federal resource managers, Flood Frequency, Habitat Evaluation, Inland Waters, LCC Network Science Catalog, Policy makers & regulators, Population Evaluation, SURFACE WATER, SURFACE WATER, SURFACE WATER PROCESSES/MEASUREMENTS, SURFACE WATER PROCESSES/MEASUREMENTS, State agencies, TERRESTRIAL HYDROSPHERE, TERRESTRIAL HYDROSPHERE, Texas, Trinity River, completed, inlandWaters, Fewer tags Model Archive for Magnitude and Frequency of Floods for Rural Streams in Georgia, South Carolina, and North Carolina, 2017 Reliable estimates of the magnitude and frequency of floods are an important part of the framework for hydraulic-structure design and flood-plain management in Georgia, South Carolina, and North Carolina (study area). Annual peak flows measured at U.S. Geological Survey streamgages were used to compute at-site flood-frequency estimates at those streamgages in the study area based on annual peak-flows records through 2017. Flood-frequency estimates also are needed at ungaged stream locations. A process known as regionalization was used to develop regression equations to estimate the magnitude and frequency of floods at ungaged locations. This model archive provides the inputs and outputs for (1) the at-site flood-frequency... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Florida, Georgia, Hydrology, North Carolina, All tags... South Carolina, Tennessee, USGS Science Data Catalog (SDC), United States, Virginia, basin, climatologyMeteorologyAtmosphere, ecology, flood, flood frequency, floods, geography, geoscientificInformation, hazard preparedness, hydrology, inlandWaters, natural resources, streamflow, streamgage, surface water, Fewer tags