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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 (5) Project (1) Types Citation (5) Map Service (1) NetCDF OPeNDAP Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts Andrew R Bock Steven L Markstrom Andy Bock William H Farmer Roland Viger More... Categories Publication (5) Data (3) Data Release - Revised (1) Project (1) Tag Types Theme (3) Science Themes (3) Label (3) Science Tools For Managers (3) Water, Coasts and Ice (3) CMS Themes (1) Keywords (1) More... Tag Schemes http://www.usgs.gov/science/ (1) https://www.sciencebase.gov/vocab/category/NCCWSC/ScienceThemes (3) USGS Thesaurus (1) https://www.sciencebase.gov/vocab/category/NCCWSC/Project/OrganizationName (3) https://www.sciencebase.gov/vocab/category/NCCWSC/ScienceToolsforManagers (3) https://www.sciencebase.gov/vocab/category/NCCWSC/WaterCoastsandIce (3) https://www.sciencebase.gov/vocab/category/WRET/CMS_Themes/Powell_CMS_Themes (1) More... View Results as: JSON ATOM CSV

Water availability for ungauged rivers: an integrative, multi-model approach to estimate water availability at ungauged rivers across the United States There has been increasing attention placed on the need for water availability information at ungauged locations, particularly related to balancing human and ecological needs for water. Critical to assessing water availability is the necessity for daily streamflow time series; however, most of the rivers in the United States are ungauged. This proposal leverages over $1M currently allocated to the USGS National Water Census Program towards developing an integrated modeling approach to estimate daily streamflow at ungauged locations, with the ultimate goal of providing daily streamflow estimates at 160,000 ungauged catchments across the United States. By assembling a diverse and prolific group of international scientists,... Categories: Data, Project; Tags: All Working Groups, Completed, Rivers, Water, Water Resources Monthly Water Balance Model Futures A monthly water balance model (MWBM) was driven with precipitation and temperature using a station-based dataset for current conditions (1949 to 2010) and selected statistically-downscaled general circulation models (GCMs) for current and future conditions (1950 to 2099) across the conterminous United States (CONUS) using hydrologic response units from the Geospatial Fabric for National Hydrologic Modeling (Viger and Bock, 2014). Six MWBM output variables (actual evapotranspiration (AET), potential evapotranspiration (PET), runoff (RO), streamflow (STRM), soil moisture storage (SOIL), and snow water equivalent (SWE)) and the two MWBM input variables (atmospheric temperature (TAVE) and precipitation (PPT)) were summarized... Categories: Data, Data Release - Revised; Types: Map Service, NetCDF OPeNDAP Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC), United States, Water Resources, hydrology, inlandWaters, All tags... precipitation, runoff, streamflow, water cycle, Fewer tags Uncertainty Intervals and Evaluation Metrics for Simulated Streamflow and Runoff from a Continental-Scale Monthly Water Balance Model This dataset consists of time series and evaluation metrics (in comma-separated value format [.csv]) which are described in the Bock and others (2018) Advances in Water Resources research article “Quantifying uncertainty in simulated streamflow and runoff from a continental-scale monthly water balance model.” In this paper, uncertainty was quantified in simulated monthly runoff produced by a monthly water balance model for gaged and ungaged locations across the conterminous United States. The compressed folder UI_byGage.zip contains two files. The file UI_byGage.csv contains the monthly time-step uncertainty intervals and measured and simulated time series of streamflow developed at 1,575 streamgages across the... Categories: Data; Tags: United States, inland Waters, runoff, streamflow, uncertainty Simulation of Water Availability in the Southeastern United States for Historical and Potential Future Climate and Land-Cover Conditions Abstract: A study was conducted by the U.S. Geological Survey (USGS), in cooperation with the Gulf Coastal Plains and Ozarks Landscape Conservation Cooperative (GCPO LCC) and the Department of the Interior Southeast Climate Adaptation Science Center, to evaluate the hydrologic response of a daily time step hydrologic model to historical observations and projections of potential climate and land-cover change for the period 1952–2099. The model simulations were used to compute the potential changes in hydrologic response and streamflow statistics across the Southeastern United States, using historical observations of climate and streamflow. Thirteen downscaled general circulation models with four representative concentration... Categories: Publication; Types: Citation Accelerating advances in continental domain hydrologic modeling In the past, hydrologic modeling of surface water resources has mainly focused on simulating the hydrologic cycle at local to regional catchment modeling domains. There now exists a level of maturity among the catchment, global water security, and land surface modeling communities such that these communities are converging toward continental domain hydrologic models. This commentary, written from a catchment hydrology community perspective, provides a review of progress in each community toward this achievement, identifies common challenges the communities face, and details immediate and specific areas in which these communities can mutually benefit one another from the convergence of their research perspectives.... Categories: Publication; Types: Citation Inter-annual and spatial variability of Hamon potential evapotranspiration model coefficients Abstract (from http://www.sciencedirect.com/science/article/pii/S0022169414010087): Monthly calibrated values of the Hamon PET coefficient ( C) are determined for 109,951 hydrologic response units (HRUs) across the conterminous United States (U.S.). The calibrated coefficient values are determined by matching calculated mean monthly Hamon PET to mean monthly free-water surface evaporation. For most locations and months the calibrated coefficients are larger than the standard value reported by Hamon. The largest changes in the coefficients were for the late winter/early spring and fall months, whereas the smallest changes were for the summer months. Comparisons of PET computed using the standard value of C and computed... Categories: Publication; Types: Citation; Tags: Data Visualization & Tools, Hamon, Potential evapotranspiration, Rivers, Streams and Lakes, Science Tools For Managers, All tags... South Central CASC, Surface water hydrology, Water balance, Water, Coasts and Ice, Fewer tags Do Downscaled General Circulation Models Reliably Simulate Historical Climatic Conditions? Abstract: The accuracy of statistically downscaled (SD) general circulation model (GCM) simulations of monthly surface climate for historical conditions (1950–2005) was assessed for the conterminous United States (CONUS). The SD monthly precipitation (PPT) and temperature (TAVE) from 95 GCMs from phases 3 and 5 of the Coupled Model Intercomparison Project (CMIP3 and CMIP5) were used as inputs to a monthly water balance model (MWBM). Distributions of MWBM input (PPT and TAVE) and output [runoff (RUN)] variables derived from gridded station data (GSD) and historical SD climate were compared using the Kolmogorov–Smirnov (KS) test For all three variables considered, the KS test results showed that variables simulated... Categories: Publication; Types: Citation; Tags: Data Visualization & Tools, Rivers, Streams and Lakes, Science Tools For Managers, South Central CASC, Water, Coasts and Ice Final Report: Assessing the Drivers of Water Availability for Historic and Future Conditions in the South Central U.S. The increasing availability of climate projections provides natural resource managers and scientists with a number of scenarios from which to estimate variability in hydrologic response to future climatic conditions. This presents a need for consistent and efficient conversion of climate data into model-ready format, archiving and indexing of model simulation results, and the visualization and summation of model simulation results. Furthermore, decision-makers need this information at specific locations and for specific periods of record to effectively manage their water resources. This final report summarizes a collaborative effort to help address these issues through the construction of the Monthly Water Balance... Categories: Publication; Types: Citation; Tags: Consumptive Use, Data Visualization & Tools, Report: Report, Rivers, Streams and Lakes, Science Tools For Managers, All tags... South Central CASC, South Central CASC, Water Availability, Water Balance Model, Water, Coasts and Ice, Fewer tags