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Filters Date Range Past year (3) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Citation (24) Shapefile (3) Budget (1) OGC Web Service (1) Types Map Service (14) OGC WFS Layer (14) OGC WMS Layer (13) OGC WMS Service (10) Journal Citation (8) Downloadable (4) Shapefile (3) Contacts U.S. Geological Survey Lindsay V Reynolds U.S. Geological Survey - ScienceBase Water Resources Terence Messinger More... Categories Data (26) Publication (24) Tag Types Theme (68) Place (69) Harvest Set (25) USGS Scientific Topic Keyword (15) Science Themes (7) Subject (2) Label (8) More... Tag Schemes None (25) Geographic Names Information System (26) USGS Thesaurus (42) U.S. Department of Commerce; 2013; American National Standards Institute (ANSI) Codes for States, the District of Columbia, Puerto Rico, and the Insular Areas of the United States; Washington, DC; U.S. Census Bureau; http://www.census.gov/geo/reference/ansi_statetables.html. (5) none (6) ISO 19115 Topic Category (25) Common geographic areas (6) More... View Results as: JSON ATOM CSV

Seasonal flows of international British Columbia-Alaska rivers: The nonlinear influence of ocean-atmosphere circulation patterns Abstract (from http://www.sciencedirect.com/science/article/pii/S0309170815002444): The northern portion of the Pacific coastal temperate rainforest (PCTR) is one of the least anthropogenically modified regions on earth and remains in many respects a frontier area to science. Rivers crossing the northern PCTR, which is also an international boundary region between British Columbia, Canada and Alaska, USA, deliver large freshwater and biogeochemical fluxes to the Gulf of Alaska and establish linkages between coastal and continental ecosystems. We evaluate interannual flow variability in three transboundary PCTR watersheds in response to El Niño-Southern Oscillation (ENSO), Pacific Decadal Oscillation (PDO), Arctic... Categories: Publication; Types: Citation; Tags: Alaska CASC, Arctic Oscillation, ENSO, Forests, Glaciers and Permafrost, All tags... Hydroclimatology, Landscapes, North Pacific Gyre Oscillation, Pacific Decadal Oscillation, Sea-Level Rise and Coasts, Streamflow, Water, Coasts and Ice, Fewer tags Use of radars to monitor stream discharge by noncontact methods Conventional measurements of river flows are costly, time-consuming, and frequently dangerous. This report evaluates the use of a continuous wave microwave radar, a monostatic UHF Doppler radar, a pulsed Doppler microwave radar, and a ground-penetrating radar to measure river flows continuously over long periods and without touching the water with any instruments. The experiments duplicate the flow records from conventional stream gauging stations on the San Joaquin River in California and the Cowlitz River in Washington. The purpose of the experiments was to directly measure the parameters necessary to compute flow: surface velocity (converted to mean velocity) and cross-sectional area, thereby avoiding the uncertainty,... Categories: Publication; Types: Citation; Tags: Streamflow, ground-penetrating radar, microwave radar, remote sensing Pesticide concentration and streamflow datasets used to evaluate pesticide trends in the Nation’s rivers and streams, 1992-2012 (output) 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, loads, pesticides, streamflow, trends, All tags... usgsnawqaswtrends, water quality, Fewer tags Files for the Chowan and Roanoke River Basins Estimated provisional streamflow values (Messinger and Burgholzer, 201x) for streamgages in the Chowan and Roanoke 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 the same streamgages... Categories: Data; Types: Citation; Tags: Chowan River Basin, Rating stability, Roanoke River Basin, Stage-discharge relationship, Streamflow, All tags... Streamflow uncertainty, Streamgage reliability, Virginia, Fewer tags Ratings and estimated provisional streamflow for streamgages in Virginia, water years 1991 through 2013 The U.S. Geological Survey, in cooperation with the Virginia Department of Environmental Quality, has quantified several measures of rating stability and the frequency and magnitude of changes to ratings through time for 174 real-time continuous streamgages active in Virginia as of September 30, 2013. Alternative flow (AltFlow) tables were developed as a method of estimating provisional flow data. They were constructed for periods with complete records of shifts and ratings between October 1, 1990 and September 30, 2013. Alternate flows consist of Qsame, the flow value from the shifted rating table used to compute the daily flow value at the time of the most recent flow measurement that corresponds to the gage height... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: James River Basin, New River Basin, Potomac River Basin, Rappahannock River Basin, Rating stability, All tags... Roanoke River Basin, Stage-discharge relationship, Streamflow, Streamflow uncertainty, Streamgage reliability, Tennessee River Basin, USGS Science Data Catalog (SDC), Virginia, Water Resources, Fewer tags Water-quality and streamflow datasets used for estimating long-term mean daily streamflow and annual loads to be considered for use in regional streamflow, nutrient and sediment SPARROW models, United States, 1999-2014 The United States Geological Survey’s (USGS) SPAtially Referenced Regressions On Watershed attributes (SPARROW) model was developed to aid in the interpretation of monitoring data and simulate water-quality conditions in streams across large spatial scales. SPARROW is a hybrid empirical/process-based mass balance model that can be used to estimate the major sources and environmental factors that affect the long-term supply, transport, and fate of contaminants in streams. The spatially explicit model structure is defined by a river reach network coupled with contributing catchments. The model is calibrated by statistically relating watershed sources and transport-related properties to monitoring-based streamflow... Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Beale model, Fluxmaster model, SPARROW, USGS Science Data Catalog (SDC), United States, All tags... loads, nutrients, streamflow, suspended sediment, total nitrogen, total phosphorus, total suspended solids, water quality, Fewer tags Nutrient and pesticide data collected from the USGS National Water Quality Network and previous networks, 1963-2016 The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS) National Water Quality Program, National Water-Quality Assessment (NAWQA) Project. The NWQN includes 19 large river coastal sites, 44 large river inland sites, 30 wadeable stream reference sites, 10 wadeable stream urban sites, and 10 wadeable stream agricultural sites. In addition to the 113 NWQN sites, 3 large inland river monitoring sites from the USGS Cooperative Water Program are also included in this annual water-quality reporting Web site to be consistent with previous USGS studies of nutrient transport in the Mississippi-Atchafalaya River Basin.... Categories: Data; Types: Citation; Tags: National Water Quality Program, USGS Science Data Catalog (SDC), United States, Water Quality, nutrient content, All tags... pesticide and herbicide contamination, river systems, sediment transport, streamflow, water quality, Fewer tags A Perspective on Nonstationarity and Water Management1 Hirsch, Robert M., 2011. A Perspective on Nonstationarity and Water Management. Journal of the American Water Resources Association (JAWRA) 47(3):436-446. DOI: 10.1111/j.1752-1688.2011.00539.xAbstract: This essay offers some perspectives on climate-related nonstationarity and water resources. Hydrologists must not lose sight of the many sources of nonstationarity, recognizing that many of them may be of much greater magnitude than those that may arise from climate change. It is paradoxical that statistical and deterministic approaches give us better insights about changes in mean conditions than about the tails of probability distributions, and yet the tails are very important to water management. Another paradox... Categories: Publication; Types: Citation; Tags: Runoff, Streamflow, climate variability/change, water Winter-spring streamflow volume and timing data for 75 Hydroclimatic Data Network-2009 basins in the conterminous United States 1920-2014 This dataset contains gage information for 75 Hydroclimatic Data Network-2009 basins in the conterminous United States and associated annual runoff volume, winter-spring runoff volume, and winter-spring runoff timing data 1920-2014, as well as trend results for WSCVD and WSV for periods 1920-2014, 1940-2014, and 1960-2014. Categories: Data; Types: Citation; Tags: Climatology, USGS Science Data Catalog (SDC), United States of America, Water Resources, streamflow USGS Small-scale Dataset - 1:1,000,000-Scale Hydrographic Geodatabase of the United States - Hawaii 201403 FileGDB 10.1 This geodatabase contains streams, waterbodies and wetlands, streamflow gaging stations, and coastlines for Hawaii. The streams are incorporated into a geometric network. All feature classes are vertically integrated with each other and with 1:1,000,000-scale transportation and boundary data sets. Types: Citation; Tags: Coastline, Downloadable Data, Downloadable Data, Drainage, FileGDB 10.1, All tags... FileGDB 10.1, Hawaii, Hydrography, Hydrology, National Atlas of the United States, Oceans, River, Shoreline, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets, Small-scale Datasets - Hydrography, State, State, Stream, Stream Gage, Stream Gauge, Streamflow, US, USA, United States, Water, Waterbody, Wetland, inlandWaters, oceans, Fewer tags Changes in the Timing of Snowmelt and Streamflow in Colorado: A Response to Recent Warming Trends in the timing of snowmelt and associated runoff in Colorado were evaluated for the 1978?2007 water years using the regional Kendall test (RKT) on daily snow-water equivalent (SWE) data from snowpack telemetry (SNOTEL) sites and daily streamflow data from headwater streams. The RKT is a robust, nonparametric test that provides an increased power of trend detection by grouping data from multiple sites within a given geographic region. The RKT analyses indicated strong, pervasive trends in snowmelt and streamflow timing, which have shifted toward earlier in the year by a median of 2?3 weeks over the 29-yr study period. In contrast, relatively few statistically significant trends were detected using simple linear... Categories: Publication; Types: Citation, Journal Citation; Tags: Interannual variability, Journal of Climate, North America, Snowmelt/icemelt, Streamflow HEC-RAS model boundary for flood inundation maps for Johnson Creek at Sycamore gage, Portland, 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... 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 CLIMATE CHHANGE SENSITIVITY ASSESSMENT ON UPPER MISSISSIPPI RIVER BASIN STREAMFLOWS USING SWAT1 ABSTRACT: The Soil and Water Assessment Tool (SWAT) model was used to assess the effects of potential future climate change on the hydrology of the Upper Mississippi River Basin (UMRB). Calibration and validation of SWAT were performed using monthly stream flows for 1968–1987 and 1988–1997, respectively. The R2 and Nash-Sutcliffe simulation efficiency values computed for the monthly comparisons were 0.74 and 0.69 for the calibration period and 0.82 and 0.81 for the validation period. The effects of nine 30-year (1968 to 1997) sensitivity runs and six climate change scenarios were then analyzed, relative to a scenario baseline. A doubling of atmospheric CO2 to 660 ppmv (while holding other climate variables constant)... Categories: Publication; Types: Citation; Tags: Data Visualization & Tools, Landscapes, Northeast CASC, Other Landscapes, Science Tools For Managers, All tags... Soil and Water Assessment Tool (SWAT), climate change, general circulation model (GCM), hydrologic cycle, simulation, streamflow, Fewer tags Velocity profiling in the Chicago Sanitary and Ship Canal near the US Army Corps of Engineers Electric Dispersal Barrier near Romeoville, Illinois On August 31, 2015, USGS Illinois Water Science Center staff deployed a 2000 kHz side-looking acoustic Doppler velocity meter (ADVM) in the Chicago Sanitary and Ship Canal (CSSC) at the Electric Dispersal Barrier System (EDBS). These data were collected as a fully loaded commercial barge tow traversed the EDBS and passed the ADVM three times, and as several smaller vessels and an unloaded barge tow passed the ADVM. The ADVM was mounted to a rigid 2-inch PVC pipe in compliance with U.S. Army Corps of Engineers (USACE) operational safety protocols for working in or near the EDBS. The pipe with ADVM was lowered 4.5 feet below the water surface on the west (right) bank of the canal at a location approximately 477 feet... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chicago Sanitary and Ship Canal, Illinois, Romeoville, USGS Science Data Catalog (SDC), Water Resources, All tags... Will County, streamflow, surface water (non marine), Fewer tags Five Hundred Years of Hydrological Drought in the Upper Colorado River Basin This article evaluates drought scenarios of the Upper Colorado River basin (UCRB) considering multiple drought variables for the past 500 years and positions the current drought in terms of the magnitude and frequency. Drought characteristics were developed considering water-year data of UCRB’s streamflow, and basin-wide averages of the Palmer Hydrological Drought Index (PHDI) and the Palmer Z Index. Streamflow and drought indices were reconstructed for the last 500 years using a principal component regression model based on tree-ring data. The reconstructed streamflow showed higher variability as compared with reconstructed PHDI and reconstructed Palmer Z Index. The magnitude and severity of all droughts were... Categories: Publication; Types: Citation, Journal Citation; Tags: Journal of the American Water Resources Association, Palmer Z index, Palmer hydrological drought index, Upper Colorado River Basin, dendrochronology, All tags... drought, planning, streamflow, Fewer tags Stream Segments Used with the Precipitation Runoff Modeling System for Hydrologic Simulations of the Apalachicola-Chattahoochee-Flint River Basin in the southeastern U.S. The stream segments available here are for seven applications of the Precipitation Runoff Modeling System (PRMS) in the Apalachicola-Chattahoochee-Flint River Basin (ACFB) by LaFontaine and others (2017). Geographic Information System (GIS) files for the stream segments in each of the seven model applications (whole ACFB, Chestatee River, Chipola River, Ichawaynochaway Creek, Potato Creek, Spring Creek, and Upper Chattahoochee River) are provided as shapefiles with attributes identifying the numbering convention used in the PRMS models of the ACFB. Types: Citation; Tags: Alabama, Apalachicola River, Chattahoochee River, Chestatee River, Chipola River, All tags... Flint River, Florida, Georgia, Ichawaynochaway Creek, Potato Creek, Spring Creek, model, streamflow, streamflow modeling, Fewer tags Flood inundation depth for a flow of 1,200 cfs (stage 11) at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor_11.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 Flood inundation depth for a flow of 800 cfs (stage 9) at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor_9.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 Flood inundation depth for a flow of 2,130 cfs (stage 14) at gage 14211500, Johnson Creek near Sycamore, Oregon (sycor_14.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 Predicted hydrology (intermittency) of a given stream reach under drier climate conditions in the Upper Colorado River Basin Our objective was to model the risk of becoming intermittent under drier climate 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 conditional inference modeling approach to model the relation between intermittency status on gaged streams (115 gages) and selected mean and minimum flow metrics. We then projected intermittency status and if a stream... Types: Citation; Tags: Random forests, Streamflow, Streamflow modeling, Ungaged streams, Upper Colorado River Basin, All tags... Upper Colorado River Basin, Fewer tags « 1 2 3 4 5 »