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Flood inundation depth for a flow of 2,578 cfs (stage 15) at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor_15.tif) The basis for these features is U.S. Geological Survey Scientific Investigations Report 2017-5024 Flood Inundation Mapping Data for Johnson Creek near Sycamore, Oregon. The domain of the HEC-RAS hydraulic model is a 12.9-mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon, to its confluence with the Willamette River. Some of the hydraulics used in the model were taken from Federal Emergency Management Agency, 2010, Flood Insurance Study, City of Portland, Oregon, Multnomah, Clackamas, and Washington Counties, Volume 1 of 3, November 26, 2010. The Digital Elevation Model (DEM) utilized for the project was developed from lidar data flown in 2015 and provided by the Oregon Department... Types: Citation; Tags: Johnson Creek, Portland, Oregon, Willamette Valley, digital elevation models, floods, All tags... hydrology, inlandWaters, stream discharge, streamflow, Fewer tags Areas of uncertainty for flood inundation extents at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor_breach.shp) ​The basis for these features is U.S. Geological Survey Scientific Investigations Report 2017-5024 Flood Inundation Mapping Data for Johnson Creek near Sycamore, Oregon. The domain of the HEC-RAS hydraulic model is a 12.9-mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon, to its confluence with the Willamette River. Some of the hydraulics used in the model were taken from Federal Emergency Management Agency, 2010, Flood Insurance Study, City of Portland, Oregon, Multnomah, Clackamas, and Washington Counties, Volume 1 of 3, November 26, 2010. The Digital Elevation Model (DEM) utilized for the project was developed from lidar data flown in 2015 and provided by the Oregon Department... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Johnson Creek, Portland, Oregon, Willamette Valley, digital elevation models, floods, All tags... hydrology, inlandWaters, stream discharge, streamflow, Fewer tags Rethinking hyporheic flow and transient storage to advance understanding of stream-catchment connections Although surface water and groundwater are increasingly referred to as one resource, there remain environmental and ecosystem needs to study the 10 m to 1 km reach scale as one hydrologic system. Streams gain and lose water over a range of spatial and temporal scales. Large spatial scales (kilometers) have traditionally been recognized and studied as river-aquifer connections. Over the last 25 years hyporheic exchange flows (1–10 m) have been studied extensively. Often a transient storage model has been used to quantify the physical solute transport setting in which biogeochemical processes occur. At the longer 10 m to 1 km scale of stream reaches it is now clear that streams which gain water overall can coincidentally... Categories: Publication; Types: Citation; Tags: Streamflow, catchments, hyporheic flow, solute transport, streams, All tags... transient storage, Fewer tags Output Data from Hydrologic Simulations of the Apalachicola-Chattahoochee-Flint River Basin in the southeastern U.S. using the Precipitation Runoff Modeling System The Apalachicola-Chattahoochee-Flint River Basin (ACFB) was modeled to produce fourteen simulations of streamflow for demonstration of enhancements to the Precipitation Runoff Modeling System (PRMS); seven simulations without water use effects and seven simulations with water use effects. The seven simulations without water use were for 1) the whole ACFB basin (1982-2012), 2) the Chestatee River sub-basin (1982-2012), 3) the Chipola River sub-basin (1982-2012), 4) the Ichawaynochaway Creek sub-basin (1982-2012), 5) the Potato Creek sub-basin (1942-2012), 6) the Spring Creek sub-basin (1952-2012), and 7) the upper Chattahoochee River sub-basin (1982-2012). The seven simulations with water use effects were for the... Types: Citation; Tags: Apalachicola River, Chattahoochee River, Chestatee River, Chipola River, Flint River, All tags... Ichawaynochaway Creek, Potato Creek, Spring Creek, model, streamflow, streamflow modeling, Fewer tags Flood-Inundation Grids and Shapefiles for the Lower Pawcatuck River in Westerly, Rhode Island, and Stonington and North Stonington, Connecticut A series of 11 digital flood-inundation maps were developed for a 5.5 mile reach of the lower Pawcatuck River in Westerly, Rhode Island and Stonington and North Stonington, Connecticut by the U.S. Geological Survey in cooperation with the Town of Westerly, Rhode Island and the Rhode Island Office of Housing and Community Development. The coverage of the maps extends from downstream from the Ashaway River inflow at the Westerly, Rhode Island and North Stonington, Connecticut State border to about 500 feet (ft) downstream of the U.S. Route 1/Broad Street bridge on the state border between Westerly, Rhode Island and Stonington, Connecticut. A hydraulic model was used to compute water-surface profiles for 11 flood stages... Types: Citation; Tags: Connecticut, New London County, North Stonington, Pawcatuck River, Rhode Island, All tags... Stonington, USGS Science Data Catalog (SDC), Washington County, Water Resources, Westerly, flood inundation, flood preparedness, floods, hydrologic maps, streamflow, Fewer tags Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 (input) In 1991, the U.S. Geological Survey (USGS) began a study of more than 50 major river basins across the Nation as part of the National Water-Quality Assessment (NAWQA) project of the National Water-Quality Program. One of the major goals of the NAWQA project is to determine how water-quality conditions change over time. To support that goal, long-term consistent and comparable monitoring has been conducted on streams and rivers throughout the Nation. Outside of the NAWQA project, the USGS also has collected long-term water-quality data to support additional assessments of changing water-quality conditions. These data have been combined to provide insight into how natural features and human activities have contributed... Categories: Data; Types: Citation; Tags: United States, pesticides, streamflow, trends, usgsnawqaswtrends, All tags... water quality, Fewer tags Effects of land cover change on streamflow in the interior Columbia River Basin (USA and Canada). Synopsis: This study analyzed the effects of vegetation change on hydrological fluctuations in the Columbia River basin over the last century using two land cover scenarios. The first scenario was a reconstruction of historical land cover vegetation, c. 1900. The second scenario was more recent land cover as estimated from remote sensing data for 1990. The results show that, hydrologically, the most important vegetation-related change has been a general tendency towards decreased vegetation maturity in the forested areas of the basin. This general trend represents a balance between the effects of logging and fire suppression. In those areas where forest maturity has been reduced as a result of logging, wintertime... Categories: Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: British Columbia, Idaho, Land use configuration, Montana, Natural cover amount, All tags... Nevada, Oregon, Utah, Washington, Wyoming, evapotranspiration, forest cover, forests, logging, meso-regional, snow processes, stream flow, streamflow, timber harvest, vegetation change, water quantity, Fewer tags Water Balance Model Inputs and Outputs for the Conterminous United States, 1900-2015 This metadata record describes monthly input and output data covering the period 1900-2015 for a water-balance model described in McCabe and Wolock (2011). The input datasets are precipitation (PPT) and air temperature (TAV) from the PRISM group at Oregon State University. The model outputs include estimated potential evapotranspiration (PET), actual evapotranspiration (AET), runoff (RUN) (streamflow per unit area), soil moisture storage (STO), and snowfall (SNO). The datasets are arranged in tables of monthly total or average values measured in millimeters or degrees C and then multiplied by 100. The data are indexed by the identifier PRISMID, which refers to an ASCII raster of cells in an associated file named... Types: Citation; Tags: Conterminous United States, National Water Quality Program, USGS Science Data Catalog (SDC), Water Resources, evaporation, All tags... precipitation, streamflow, temperature, Fewer tags Monitoring the timing of snowmelt and the initiation of streamflow using a distributed network of temperature/light sensors The loss of snow cover and the initiation of streamflow are key triggers for both terrestrial and aquatic biota. Landscape-scale snowmelt and streamflow dynamics are difficult to estimate, however, because they integrate large spatial extents and can vary rapidly in time. Remotely sensed observations are often temporally discontinuous and point observations lack sufficient spatial density (e.g. point measures from data-logging piezometers). In this study, we employ inexpensive temperature/light sensors to monitor the distribution of snowmelt and headwater stream discharge as a proxy for hydrological state of the landscape with high spatial and temporal resolution. This study was conducted at the Redondo Peak, a... Categories: Publication; Types: Citation, Journal Citation; Tags: Ecohydrology, Valles Caldera, mountain ecohydrology, snowmelt, streamflow, All tags... temperature/light sensors, Fewer tags Terms, Statistics, and Performance Measures for Maximum Likelihood Logistic Regression Models Estimating Hydrological Drought Probabilities in the United States (2017) A table is presented listing: (1) USGS Gage Station Numbers, (2) Model Identification Tags, (3) Model Term Estimates, (4) Model Term Fit Statistics, and (5) Model Performance Indices for Maximum Likelihood Logistic Regression (MLLR) Models estimating hydrological drought probabilities in the United States. Models were developed using streamflow daily values (DV) readily available from the U.S. Geological Survey National Water Information System (NWIS) and mean monthly streamflows readily computed from NWIS streamflow DV. Models were prepared for 9,144 sites throughout the United States as described in: Modeling Summer Month Hydrological Drought Probabilities In The United States Using Antecedent Flow Conditions... Categories: Data; Types: Citation; Tags: Puerto Rico, USGS Science Data Catalog (SDC), United States of America, decision support systems, drought, All tags... forecasting, risk assessment, streamflow, surface water hydrology, water supply, watershed management, Fewer tags Predicted mean annual number of zero-flow days of small streams in the Upper Colorado River Basin based on historic flow data Our objective was to model mean annual number of zero-flow days (days per year) for small streams in the Upper Colorado River Basin under historic hydrologic conditions on small, ungaged streams in the Upper Colorado River Basin. Modeling streamflows is an important tool for understanding landscape-scale drivers of flow and estimating flows where there are no gaged records. We focused our study in the Upper Colorado River Basin, a region that is not only critical for water resources but also projected to experience large future climate shifts toward a drier climate. We used a random forest modeling approach to model the relation between zero-flow days per year on gaged streams (115 gages) and environmental variables.... Types: Citation; Tags: Random forests, Streamflow, Streamflow modeling, Ungaged streams, Upper Colorado River Basin, All tags... Upper Colorado River Basin, Fewer tags Flood inundation mapping data for Johnson Creek near Sycamore, Oregon ​The basis for these features is U.S. Geological Survey Scientific Investigations Report 2017-5024 Flood Inundation Mapping Data for Johnson Creek near Sycamore, Oregon. The domain of the HEC-RAS hydraulic model is a 12.9-mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon, to its confluence with the Willamette River. Some of the hydraulics used in the model were taken from Federal Emergency Management Agency, 2010, Flood Insurance Study, City of Portland, Oregon, Multnomah, Clackamas, and Washington Counties, Volume 1 of 3, November 26, 2010. The Digital Elevation Model (DEM) utilized for the project was developed from lidar data flown in 2015 and provided by the Oregon Department... Types: Citation; Tags: Johnson Creek, Portland, Oregon, USGS Science Data Catalog (SDC), Willamette Valley, digital elevation models, All tags... floods, hydrology, inlandWaters, stream discharge, streamflow, Fewer tags Flood inundation depth for a flow of 3,080 cfs (stage 16) at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor_16.tif) ​The basis for these features is U.S. Geological Survey Scientific Investigations Report 2017-5024 Flood Inundation Mapping Data for Johnson Creek near Sycamore, Oregon. The domain of the HEC-RAS hydraulic model is a 12.9-mile reach of Johnson Creek from just upstream of SE 174th Avenue in Portland, Oregon, to its confluence with the Willamette River. Some of the hydraulics used in the model were taken from Federal Emergency Management Agency, 2010, Flood Insurance Study, City of Portland, Oregon, Multnomah, Clackamas, and Washington Counties, Volume 1 of 3, November 26, 2010. The Digital Elevation Model (DEM) utilized for the project was developed from lidar data flown in 2015 and provided by the Oregon Department... Types: Citation; Tags: Johnson Creek, Portland, Oregon, Willamette Valley, digital elevation models, floods, All tags... hydrology, inlandWaters, stream discharge, streamflow, Fewer tags Shapefile of the flood-inundation maps for the White River at Noblesville, Indiana Digital flood-inundation maps for a 7.5-mile reach of the White River at Noblesville, Indiana, were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Department of Transportation. The flood-inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science website at https://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at the White River at Noblesville, Ind., streamgage (USGS station number 03349000). Real-time stages at this streamgage may be obtained from the USGS National Water Information System at https://waterdata.usgs.gov/nwis or the National Weather Service... Categories: Data; Types: Citation; Tags: City of Noblesville, Indiana, Noblesville, United States, White River, All tags... flood-inundation maps, floodplain, floodplains, floods, geospatial analysis, geospatial datasets, high-water marks, hydraulic engineering, hydrology, inlandWaters, maps and atlases, river, stream, streamflow, Fewer tags Using regional scale flow–ecology modeling to identify catchments where fish assemblages are most vulnerable to changes in water availability Streamflow is essential for maintaining healthy aquatic ecosystems and for supporting human water supply needs. Changes in climate, land use and water use practices may alter water availability. Understanding the potential effect of these changes on aquatic ecosystems is critical for long-term water management to maintain a balance between water for human consumption and ecosystem needs. Fish species data and streamflow estimates from a rainfall-runoff and flow routing model were used to develop boosted regression tree models to predict the relationship between streamflow and fish species richness (FSR) under plausible scenarios of (1) water withdrawal, (2) climate change and (3) increases in impervious surfaces... Categories: Publication; Types: Citation; Tags: Aquatic, Fish, Landscapes, Modeling, Other Landscapes, All tags... Rivers, Streams and Lakes, Science Tools For Managers, Southeast CASC, State of the Science, Streamflow, Water, Coasts and Ice, Fewer tags Files for the Rappahannock, Piankatank, and York River Basins Estimated provisional streamflow values (Messinger and Burgholzer, 201x) for streamgages in the Rappahannock, Piankatank, and York River Basins and the shifted, expanded ratings that were used to develop them are included in this dataset. This file contains source data, daily streamflow records and selected ratings that had been saved in the National Water Information Service database for water years 1991-2013. Microsoft Excel formulas that were used to compute the estimated provisional streamflow (AltFlow) tables are included, and may be used to extend the AltFlow record following the procedure described by Messinger and Burgholzer (2017), in Appendix 2. This release also contains the existing AltFlow record for... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Piankatank River Basin, Rappahannock River Basin, Rating stability, Stage-discharge relationship, Streamflow, All tags... Streamflow uncertainty, Streamgage reliability, Virginia, York River Basin, Fewer tags Streamflow statistics calculated from daily mean streamflow data collected during water years 1901–2015 for selected U.S. Geological Survey streamgages In 2016, non-interpretive streamflow statistics were compiled for streamgages located throughout the Nation and stored in the StreamStatsDB database for use with StreamStats and other applications. Two previously published USGS computer programs that were designed to help calculate streamflow statistics were updated to better support StreamStats as part of this effort. These programs are named “GNWISQ” (Get National Water Information System Streamflow (Q) files) and “QSTATS” (Streamflow (Q) Statistics). Statistics for 20,438 streamgages that had 1 or more complete years of record during water years 1901 through 2015 were calculated from daily mean streamflow data; 19,415 of these streamgages were within the conterminous... Types: Citation; Tags: Groundwater and Streamflow Information Program, L-moments, Stochastic Empirical Loading and Dilution Model, StreamStats, StreamStatsDB, All tags... USGS Science Data Catalog (SDC), United States, Water Resources, flow durations, probability weighted moments, statistics, streamflow, streamgage, Fewer tags Associations of interdecadal/interannual climate variability and long-term colorado river basin streamflow The study presented here utilized long-term streamflow records (over 500 years) to investigate the influence of interannual/interdecadal climate variability on the Colorado River basin. 19 unimpaired water year streamflow stations were reconstructed utilizing partial least square regression using standard tree ring chronologies. The spatial and temporal variability of drought was evaluated for all the stations for the different centuries in the record. Finally, the relationship between individual impact of ENSO, PDO, and AMO and its combined effect on streamflow was determined using the non parametric Rank Sum test for different lag years (0, +1, +2, and +3) of streamflow. This research also determined the change... Categories: Publication; Types: Citation, Journal Citation; Tags: AMO, ENSO, Journal of Hydrology, PDO, climate variability, All tags... interannual, interdecadel, reconstruction, streamflow, Fewer tags Upper Green River Basin (United States) Streamflow Reconstructions The Upper Green River represents a vital water supply for southwestern Wyoming and Upper/Lower Colorado River Compact states. Rapid development in the southwestern United States combined with the recent drought has greatly stressed the water supply of the Colorado River system, and concurrently increased the interest in long-term variations in streamflow. The current research developed six new tree-ring chronologies in and adjacent to the Upper Green River Basin (UGRB). Nine proxy reconstructions (three main-stem streams and six headwater streams) of UGRB streamflow were created by combining these new tree-ring chronologies with existing tree-ring chronologies from sites adjacent to the UGRB. All UGRB streamflow... Categories: Publication; Types: Citation, Journal Citation; Tags: Colorado River, Droughts, Journal of Hydrologic Engineering, Reconstructions, River basins, All tags... Streamflow, Wyoming, Fewer tags Appendix 2. Simulated monthly mean streamflows for the seven study watersheds in eastern and central Montana, for the baseline period (WY 1982 – 1999) and future periods (WYs 2021 – 2038, 2046 – 2063 and 2071 – 2088) for the three General Circulation Models used in the regional climate model. The Precipitation-Runoff Modeling System (PRMS) was used to produce simulations of streamflow for seven watersheds in eastern and central Montana for a baseline period (water years 1982-1999) and three future periods (water years 2021-2038, 2046–2063, and 2071-2038). The seven areas that were modeled are the O'Fallon, Redwater, Little Dry, Middle Musselshell, Judith, Cottonwood Creek, and Belt watersheds. Appendix 2 is provided as supplementary information to accompany the forthcoming journal article Potential Effects of Climate Change on Streamflow for Seven Watersheds in Eastern and Central Montana. These data document the monthly streamflow (in cubic meters per second) at the downstream end of each stream... Categories: Data; Types: Citation; Tags: Great Plains, Montana, climate change, effects of climate change, fish, All tags... model, streamflow, streamflow modeling, Fewer tags 1 2 3 4 »