Andrew R Bock
Thanks for visiting my profile page. I am a hydrologist for the Geospatial Intelligence Branch within the Integrated Modeling and Prediction Division.
The focus of my work is developing geospatial and data analysis techniques to improve our understanding of hydrologic systems.
Education and Certifications
M.S. in Geography, University of Colorado-Boulder, 2010
B.S. in Watershed Management, University of Wisconsin-Stevens Point, 2004
Science and Products
Development of Recommended Practices and Workflow for Publishing Digital Data through ScienceBase for Dynamic Visualization
The purpose of this project was to document processes for USGS scientists to organize and share data using ScienceBase, and to provide an example interactive mapping application to display those data. Data and maps from Chase and others (2016a, b) were used for the example interactive maps. Principal Investigator : Katherine J Chase, Andy Bock, Thomas R Sando Accomplishments The
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...
Evaluation of downscaled General Circulation Model (GCM) output for current conditions and associated error in simulated runoff for CONUS
This project will assess the accuracy of climate drivers (precipitation and temperature) from different sources for current and future conditions. The impact of these drivers on hydrologic response will be using the monthly water balance model (MWBM). The methodology for processing and analysis of these datasets will be automated for when new climate datasets become available on the USGS...
Developing a VisTrails Platform for Modeling Streamflow Hydrology and Projecting Climate Change Effects on Streamflow
Hydrologic models are used throughout the world to forecast and simulate streamflow, inform water management, municipal planning, and ecosystem conservation, and investigate potential effects of climate and land-use change on hydrology. The USGS Modeling of Watershed Systems (MoWS) group is currently developing the infrastructure for a National Hydrologic Model (NHM) to support...
USGS Dynamic Surface Water Extent (DSWE)-based Inundation Frequencies for Select U.S. Fish and Wildlife Service Mountain-Prairie Region Properties, 1982-2020 USGS Dynamic Surface Water Extent (DSWE)-based Inundation Frequencies for Select U.S. Fish and Wildlife Service Mountain-Prairie Region Properties, 1982-2020
This data release contains grids, in geographic tagged imaged file (.tif) format, summarizing inundation frequency of the U. S. Geological Survey (USGS) Dynamic Surface Water Extent (DSWE) Landsat Science Product at 114 National Wildlife Refuges throughout the U.S. Fish and Wildlife Service (USFWS) Mountain-Prairie Region (Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota...
Estimates of Deicing Salt Application across States Encompassing the Delaware River Basin, United States, 2001-2023 Estimates of Deicing Salt Application across States Encompassing the Delaware River Basin, United States, 2001-2023
This data release contains three different estimates of road deicing salt applications, which utilize different sources of deicing salt data, and climate, land cover, and imperviousness data to provide spatially distributed estimates of deicing salt application for states covering the Delaware River Basin from water and calendar years 2001 through 2023 at a 30-meter spatial resolution...
Hawai'i National Hydrologic Model (NHM) application,1980–2021 Hawai'i National Hydrologic Model (NHM) application,1980–2021
This data release contains inputs for and outputs from hydrologic simulations for the Hawai‘i (HI) domain using the Precipitation Runoff Modeling System (PRMS) version 5.2.1.1 for the precalibration, by Hydrologic Response Unit (byHRU) release, and by Point Of Interest Observation (byPOIobs) release using the USGS National Hydrologic Model infrastructure (NHM; Regan and others, 2018)...
Precipitation, river surface velocity, and river stage measurements within the Spring Creek Burn Scar, Colorado, USA, during select storms in 2019 and 2021 Precipitation, river surface velocity, and river stage measurements within the Spring Creek Burn Scar, Colorado, USA, during select storms in 2019 and 2021
The U.S. Geological Survey (USGS) installed and operated several flood and debris flow warning gages within or downstream from the Spring Creek burn scar, Colorado, U.S.A. The warning gages were operated during several years post fire (2019-21) in cooperation with the Colorado Department of Transportation (CDOT). The USGS warning gages were part of a larger post-wildfire...
Geospatial Fabric for National Hydrologic Modeling, Alaska Domain Geospatial Fabric for National Hydrologic Modeling, Alaska Domain
The Geospatial Fabric for National Hydrologic Modeling (Viger and Bock, 2014; Bock and others, 2020) is a dataset of hydrographic features and spatial data designed for use within the National Hydrologic Model that covers the conterminous United States (CONUS), Hawaii, and most major river basins that flow in from Canada. This U.S. Geological Survey (USGS) data release consists of the...
Pre-fire predicted burn severity for estimating hazard of post-fire debris flow for conservation populations of blue-lineage Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) in the Upper Colorado River Basin Pre-fire predicted burn severity for estimating hazard of post-fire debris flow for conservation populations of blue-lineage Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) in the Upper Colorado River Basin
These data were compiled for/to estimate predicted pre-fire burn severity for estimating hazard of post-fire debris flow for conservation populations of blue-lineage Colorado River Cutthroat Trout. Objective(s) of our study were to predicted burn severity. These data represent predicted pre-fire differenced Normalized Burn Ratio (dNBR) for portions of Colorado, Utah, and Wyoming and were...
Geospatial Fabric for National Hydrologic Modeling, Hawaii Domain Geospatial Fabric for National Hydrologic Modeling, Hawaii Domain
The Geospatial Fabric is a dataset of spatial modeling units for use within the National Hydrologic Model that covers the conterminous United States (CONUS), Alaska, and most major river basins that flow in from Canada. This U.S. Geological Survey (USGS) data release consists of the geospatial fabric features and other related datasets created to expand the National Hydrologic Model to...
Hydroclimate Projections for Select U.S. Fish and Wildlife Service Properties - Mountain-Prairie Region, 1951-2099 Hydroclimate Projections for Select U.S. Fish and Wildlife Service Properties - Mountain-Prairie Region, 1951-2099
This data release contains time series and plots summarizing mean monthly temperature and total monthly precipitation, and runoff from the U.S. Geological Survey Monthly Water Balance Model at 115 National Wildlife Refuges within the U.S. Fish and Wildlife Service Mountain-Prairie Region (CO, KS, MT, NE, ND, SD, UT, and WY). The three variables are derived from two sets of statistically...
Elevation Data from Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2021 Elevation Data from Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2021
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has been collecting topographic data annually since 2012 at 10 study areas along Fountain Creek, Colorado. The 10 study areas are located along Fountain Creek between Colorado Springs and the confluence of Fountain Creek and the Arkansas River in Pueblo. This data release presents topographic survey data, Light...
Geospatial Fabric for National Hydrologic Modeling, version 1.1 Geospatial Fabric for National Hydrologic Modeling, version 1.1
This U.S. Geological Survey (USGS) data release consists of two hydrographic datasets with spatial modeling units consistent with the National Hydrologic Model (NHM) Geospatial Fabric for National Hydrologic Modeling (abbreviated within this document as GFv1, Viger and Bock, 2014). The two datasets found as subpages to this landing page are 1) the GIS (geographic information system)...
Riparian seed dispersal phenology and snowmelt streamflow timing in the upper South Platte River Basin, observed in 2010-2011 and simulated for 1962-2098 Riparian seed dispersal phenology and snowmelt streamflow timing in the upper South Platte River Basin, observed in 2010-2011 and simulated for 1962-2098
This dataset presents observations and model projections of climate, riparian cottonwood and willow seed release phenology, snowmelt streamflow timing, and relative timing of seed release and snowmelt peak streamflow in the upper South Platte River Basin, USA. We collected field observations of seed release phenology from three riparian Salicaceae species at 14 riparian sites and used...
Estimates of Road Salt Application across the Conterminous United States, 1992-2019 (ver. 2.0, August 2023) Estimates of Road Salt Application across the Conterminous United States, 1992-2019 (ver. 2.0, August 2023)
Annual estimates of road salt application were developed for the conterminous United States for the calendar years 1992 through 2015. The final estimates (in pounds) were derived from several data sources, which include road density and proportion of developed land use, depth and spatial extent of long-term snowfall, and the production and distribution of salt sources by state. The...
Elevation and elevation-change maps of Fountain Creek, southeastern Colorado, 2015-20 Elevation and elevation-change maps of Fountain Creek, southeastern Colorado, 2015-20
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has collected topographic data annually since 2012 at 10 study areas along Fountain Creek, southeastern Colorado. The 10 study areas were located between Colorado Springs and the terminus of Fountain Creek at the Arkansas River in Pueblo. The purpose of this report is to present elevation maps based on...
Filter Total Items: 18
Hydroclimate projections and effects on runoff at National Wildlife Refuges in the semi-arid western U.S. Hydroclimate projections and effects on runoff at National Wildlife Refuges in the semi-arid western U.S.
This study evaluated hydroclimate projections and effects on runoff at National Wildlife Refuges in a semiarid region of the western United States (U.S. Fish and Wildlife Service Region 6) using mean air temperature (TAVE) and precipitation (PPT) inputs and runoff (RO) output from a national application of a Monthly Water Balance Model (MWBM). An ensemble of statistically downscaled...
Authors
Brian S. Caruso, Lauren Ellissa Eng, Andrew Bock, Nicholas Hall
Before the fire: Predicting burn severity and potential post-fire debris-flow hazards to Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) conservation populations Before the fire: Predicting burn severity and potential post-fire debris-flow hazards to Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) conservation populations
Background Colorado River Cutthroat Trout (CRCT; Oncorhynchus clarkii pleuriticus) conservation populations may be at risk from wildfire and post-fire debris flows hazards. Aim To predict burn severity and potential post-fire debris flow hazard classifications to CRCT conservation populations before wildfires occur. Methods We used remote sensing, spatial analyses, and machine learning...
Authors
Adam Wells, Charles Yackulic, Jaime Kostelnik, Andrew Bock, Robert Zuellig, Daren Carlisle, James Roberts, Kevin B. Rogers, Seth Munson
Generating a reference flow network with improved connectivity to support durable data integration and reproducibility in the coterminous US Generating a reference flow network with improved connectivity to support durable data integration and reproducibility in the coterminous US
This report presents a reference flow network for the conterminous United States that is built from the best available information from the U.S. Geological Survey, the National Oceanic and Atmospheric Administration National Weather Service, and the U.S. Environmental Protection Agency. The work is intended to support durable data integration and reproducibility. Originating from the...
Authors
David Blodgett, J. Michael Johnson, Andrew Bock
Hydrologic modeling and river corridor applications of HY_Features concepts Hydrologic modeling and river corridor applications of HY_Features concepts
The WaterML2: Part 3 - Surface Hydrology Features (HY_Features) Conceptual Model was published by OGC in 2018. This report documents the use of HY_Features concepts in support of two key tasks: (1) local to continental hydrologic modeling; and (2) referencing river corridor data to hydrographic networks. The presented use cases are applicable in hydroscience research and assessments...
Authors
David Blodgett, J. Michael Johnson, Andrew Bock, Jessica LeRoy, Martin Wernimont
Projected warming disrupts the synchrony of riparian seed dispersal and snowmelt streamflow Projected warming disrupts the synchrony of riparian seed dispersal and snowmelt streamflow
• Globally, spring phenology and abiotic processes are shifting earlier with warming. Differences in the magnitudes of these shifts may decouple the timing of plant resource requirements from resource availability. In riparian forests across the northern hemisphere, warming could decouple seed dispersal from snowmelt peak streamflow, thus reducing moisture and safe-sites for dominant...
Authors
Laura Perry, Patrick Shafroth, Lauren Hay, Steven Markstrom, Andrew Bock
Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions
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...
Authors
Jacob LaFontaine, Rheannon Hart, Lauren E. Hay, William Farmer, Andy Bock, Roland Viger, Steven Markstrom, R. Regan, Jessica Driscoll
Quantifying uncertainty in simulated streamflow and runoff from a continental-scale monthly water balance model Quantifying uncertainty in simulated streamflow and runoff from a continental-scale monthly water balance model
One important component of continental-scale hydrologic modeling is quantifying the level of uncertainty in long-term hydrologic simulations and providing a range of possible simulated streamflow and/or runoff values for gaged and ungaged locations. In this paper, uncertainty was quantified for simulated streamflow and runoff generated from a monthly water balance model (MWBM) at 1575...
Authors
Andrew Bock, William Farmer, Lauren E. Hay
Do downscaled general circulation models reliably simulate historical climatic conditions? Do downscaled general circulation models reliably simulate historical climatic conditions?
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...
Authors
Andrew Bock, Lauren Hay, Gregory J. McCabe, Steven Markstrom, R. Atkinson
Community for Data Integration 2016 annual report Community for Data Integration 2016 annual report
The Community for Data Integration (CDI) represents a dynamic community of practice focused on advancing science data and information management and integration capabilities across the U.S. Geological Survey and the CDI community. This annual report describes the various presentations, activities, and outcomes of the CDI monthly forums, working groups, virtual training series, and other...
Authors
Madison Langseth, Leslie Hsu, Jon Amberg, Norman Bliss, Andrew Bock, Rachel T. Bolus, R. Sky Bristol, Katherine Chase, Theresa Crimmins, Paul Earle, Richard Erickson, A. Everette, Jeff Falgout, John Faundeen, Michael N. Fienen, Rusty Griffin, Michelle R. Guy, Kevin D. Henry, Nancy Hoebelheinrich, Randall J. Hunt, Vivian B. Hutchison, Drew Ignizio, Dana Infante, Catherine Jarnevich, Jeanne Jones, Tim Kern, Scott Leibowitz, Francis Lightsom, R. Marsh, S. Grace McCalla, Marcia McNiff, Jeffrey Morisette, John Nelson, Tamar Norkin, Todd Preston, Alyssa Rosemartin, Roy Sando, Jason Sherba, Richard Signell, Benjamin Sleeter, Eric Sundquist, Colin B. Talbert, Roland J. Viger, Jake F. Weltzin, Sharon Waltman, Marc Weber, Daniel Wieferich, Brad Williams, Lisamarie Windham-Myers
The U.S. Geological Survey Monthly Water Balance Model Futures Portal The U.S. Geological Survey Monthly Water Balance Model Futures Portal
The U.S. Geological Survey Monthly Water Balance Model Futures Portal (https://my.usgs.gov/mows/) is a user-friendly interface that summarizes monthly historical and simulated future conditions for seven hydrologic and meteorological variables (actual evapotranspiration, potential evapotranspiration, precipitation, runoff, snow water equivalent, atmospheric temperature, and streamflow)...
Authors
Andrew Bock, Lauren Hay, Steven L. Markstrom, Christopher Emmerich, Marian Talbert
Spatiotemporal variability of snow depletion curves derived from SNODAS for the conterminous United States, 2004-2013 Spatiotemporal variability of snow depletion curves derived from SNODAS for the conterminous United States, 2004-2013
Assessment of water resources at a national scale is critical for understanding their vulnerability to future change in policy and climate. Representation of the spatiotemporal variability in snowmelt processes in continental-scale hydrologic models is critical for assessment of water resource response to continued climate change. Continental-extent hydrologic models such as the U.S...
Authors
Jessica Driscoll, Lauren Hay, Andrew Bock
The U.S. Geological Survey Monthly Water Balance Model Futures Portal The U.S. Geological Survey Monthly Water Balance Model Futures Portal
Simulations of future climate suggest profiles of temperature and precipitation may differ significantly from those in the past. These changes in climate will likely lead to changes in the hydrologic cycle. As such, natural resource managers are in need of tools that can provide estimates of key components of the hydrologic cycle, uncertainty associated with the estimates, and...
Authors
Andy Bock
Water budget estimation for a water availability assessment across the conterminous United States for water years 2010–2020 Water budget estimation for a water availability assessment across the conterminous United States for water years 2010–2020
This pipeline calculates a simple monthly water budget that includes water supply and consumptive use for thermoelectric, irrigation, and public supply for 12-digit Hydrologic Unit Codes (HUC12) across the conterminous United States for water years 2010-2020. Water budget results also include an assessment of supply and use imbalances within the context of historical climatic conditions...
Science and Products
Development of Recommended Practices and Workflow for Publishing Digital Data through ScienceBase for Dynamic Visualization
The purpose of this project was to document processes for USGS scientists to organize and share data using ScienceBase, and to provide an example interactive mapping application to display those data. Data and maps from Chase and others (2016a, b) were used for the example interactive maps. Principal Investigator : Katherine J Chase, Andy Bock, Thomas R Sando Accomplishments The
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...
Evaluation of downscaled General Circulation Model (GCM) output for current conditions and associated error in simulated runoff for CONUS
This project will assess the accuracy of climate drivers (precipitation and temperature) from different sources for current and future conditions. The impact of these drivers on hydrologic response will be using the monthly water balance model (MWBM). The methodology for processing and analysis of these datasets will be automated for when new climate datasets become available on the USGS...
Developing a VisTrails Platform for Modeling Streamflow Hydrology and Projecting Climate Change Effects on Streamflow
Hydrologic models are used throughout the world to forecast and simulate streamflow, inform water management, municipal planning, and ecosystem conservation, and investigate potential effects of climate and land-use change on hydrology. The USGS Modeling of Watershed Systems (MoWS) group is currently developing the infrastructure for a National Hydrologic Model (NHM) to support...
USGS Dynamic Surface Water Extent (DSWE)-based Inundation Frequencies for Select U.S. Fish and Wildlife Service Mountain-Prairie Region Properties, 1982-2020 USGS Dynamic Surface Water Extent (DSWE)-based Inundation Frequencies for Select U.S. Fish and Wildlife Service Mountain-Prairie Region Properties, 1982-2020
This data release contains grids, in geographic tagged imaged file (.tif) format, summarizing inundation frequency of the U. S. Geological Survey (USGS) Dynamic Surface Water Extent (DSWE) Landsat Science Product at 114 National Wildlife Refuges throughout the U.S. Fish and Wildlife Service (USFWS) Mountain-Prairie Region (Colorado, Kansas, Montana, Nebraska, North Dakota, South Dakota...
Estimates of Deicing Salt Application across States Encompassing the Delaware River Basin, United States, 2001-2023 Estimates of Deicing Salt Application across States Encompassing the Delaware River Basin, United States, 2001-2023
This data release contains three different estimates of road deicing salt applications, which utilize different sources of deicing salt data, and climate, land cover, and imperviousness data to provide spatially distributed estimates of deicing salt application for states covering the Delaware River Basin from water and calendar years 2001 through 2023 at a 30-meter spatial resolution...
Hawai'i National Hydrologic Model (NHM) application,1980–2021 Hawai'i National Hydrologic Model (NHM) application,1980–2021
This data release contains inputs for and outputs from hydrologic simulations for the Hawai‘i (HI) domain using the Precipitation Runoff Modeling System (PRMS) version 5.2.1.1 for the precalibration, by Hydrologic Response Unit (byHRU) release, and by Point Of Interest Observation (byPOIobs) release using the USGS National Hydrologic Model infrastructure (NHM; Regan and others, 2018)...
Precipitation, river surface velocity, and river stage measurements within the Spring Creek Burn Scar, Colorado, USA, during select storms in 2019 and 2021 Precipitation, river surface velocity, and river stage measurements within the Spring Creek Burn Scar, Colorado, USA, during select storms in 2019 and 2021
The U.S. Geological Survey (USGS) installed and operated several flood and debris flow warning gages within or downstream from the Spring Creek burn scar, Colorado, U.S.A. The warning gages were operated during several years post fire (2019-21) in cooperation with the Colorado Department of Transportation (CDOT). The USGS warning gages were part of a larger post-wildfire...
Geospatial Fabric for National Hydrologic Modeling, Alaska Domain Geospatial Fabric for National Hydrologic Modeling, Alaska Domain
The Geospatial Fabric for National Hydrologic Modeling (Viger and Bock, 2014; Bock and others, 2020) is a dataset of hydrographic features and spatial data designed for use within the National Hydrologic Model that covers the conterminous United States (CONUS), Hawaii, and most major river basins that flow in from Canada. This U.S. Geological Survey (USGS) data release consists of the...
Pre-fire predicted burn severity for estimating hazard of post-fire debris flow for conservation populations of blue-lineage Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) in the Upper Colorado River Basin Pre-fire predicted burn severity for estimating hazard of post-fire debris flow for conservation populations of blue-lineage Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) in the Upper Colorado River Basin
These data were compiled for/to estimate predicted pre-fire burn severity for estimating hazard of post-fire debris flow for conservation populations of blue-lineage Colorado River Cutthroat Trout. Objective(s) of our study were to predicted burn severity. These data represent predicted pre-fire differenced Normalized Burn Ratio (dNBR) for portions of Colorado, Utah, and Wyoming and were...
Geospatial Fabric for National Hydrologic Modeling, Hawaii Domain Geospatial Fabric for National Hydrologic Modeling, Hawaii Domain
The Geospatial Fabric is a dataset of spatial modeling units for use within the National Hydrologic Model that covers the conterminous United States (CONUS), Alaska, and most major river basins that flow in from Canada. This U.S. Geological Survey (USGS) data release consists of the geospatial fabric features and other related datasets created to expand the National Hydrologic Model to...
Hydroclimate Projections for Select U.S. Fish and Wildlife Service Properties - Mountain-Prairie Region, 1951-2099 Hydroclimate Projections for Select U.S. Fish and Wildlife Service Properties - Mountain-Prairie Region, 1951-2099
This data release contains time series and plots summarizing mean monthly temperature and total monthly precipitation, and runoff from the U.S. Geological Survey Monthly Water Balance Model at 115 National Wildlife Refuges within the U.S. Fish and Wildlife Service Mountain-Prairie Region (CO, KS, MT, NE, ND, SD, UT, and WY). The three variables are derived from two sets of statistically...
Elevation Data from Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2021 Elevation Data from Fountain Creek between Colorado Springs and the Confluence of Fountain Creek at the Arkansas River, Colorado, 2021
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has been collecting topographic data annually since 2012 at 10 study areas along Fountain Creek, Colorado. The 10 study areas are located along Fountain Creek between Colorado Springs and the confluence of Fountain Creek and the Arkansas River in Pueblo. This data release presents topographic survey data, Light...
Geospatial Fabric for National Hydrologic Modeling, version 1.1 Geospatial Fabric for National Hydrologic Modeling, version 1.1
This U.S. Geological Survey (USGS) data release consists of two hydrographic datasets with spatial modeling units consistent with the National Hydrologic Model (NHM) Geospatial Fabric for National Hydrologic Modeling (abbreviated within this document as GFv1, Viger and Bock, 2014). The two datasets found as subpages to this landing page are 1) the GIS (geographic information system)...
Riparian seed dispersal phenology and snowmelt streamflow timing in the upper South Platte River Basin, observed in 2010-2011 and simulated for 1962-2098 Riparian seed dispersal phenology and snowmelt streamflow timing in the upper South Platte River Basin, observed in 2010-2011 and simulated for 1962-2098
This dataset presents observations and model projections of climate, riparian cottonwood and willow seed release phenology, snowmelt streamflow timing, and relative timing of seed release and snowmelt peak streamflow in the upper South Platte River Basin, USA. We collected field observations of seed release phenology from three riparian Salicaceae species at 14 riparian sites and used...
Estimates of Road Salt Application across the Conterminous United States, 1992-2019 (ver. 2.0, August 2023) Estimates of Road Salt Application across the Conterminous United States, 1992-2019 (ver. 2.0, August 2023)
Annual estimates of road salt application were developed for the conterminous United States for the calendar years 1992 through 2015. The final estimates (in pounds) were derived from several data sources, which include road density and proportion of developed land use, depth and spatial extent of long-term snowfall, and the production and distribution of salt sources by state. The...
Elevation and elevation-change maps of Fountain Creek, southeastern Colorado, 2015-20 Elevation and elevation-change maps of Fountain Creek, southeastern Colorado, 2015-20
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has collected topographic data annually since 2012 at 10 study areas along Fountain Creek, southeastern Colorado. The 10 study areas were located between Colorado Springs and the terminus of Fountain Creek at the Arkansas River in Pueblo. The purpose of this report is to present elevation maps based on...
Filter Total Items: 18
Hydroclimate projections and effects on runoff at National Wildlife Refuges in the semi-arid western U.S. Hydroclimate projections and effects on runoff at National Wildlife Refuges in the semi-arid western U.S.
This study evaluated hydroclimate projections and effects on runoff at National Wildlife Refuges in a semiarid region of the western United States (U.S. Fish and Wildlife Service Region 6) using mean air temperature (TAVE) and precipitation (PPT) inputs and runoff (RO) output from a national application of a Monthly Water Balance Model (MWBM). An ensemble of statistically downscaled...
Authors
Brian S. Caruso, Lauren Ellissa Eng, Andrew Bock, Nicholas Hall
Before the fire: Predicting burn severity and potential post-fire debris-flow hazards to Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) conservation populations Before the fire: Predicting burn severity and potential post-fire debris-flow hazards to Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus) conservation populations
Background Colorado River Cutthroat Trout (CRCT; Oncorhynchus clarkii pleuriticus) conservation populations may be at risk from wildfire and post-fire debris flows hazards. Aim To predict burn severity and potential post-fire debris flow hazard classifications to CRCT conservation populations before wildfires occur. Methods We used remote sensing, spatial analyses, and machine learning...
Authors
Adam Wells, Charles Yackulic, Jaime Kostelnik, Andrew Bock, Robert Zuellig, Daren Carlisle, James Roberts, Kevin B. Rogers, Seth Munson
Generating a reference flow network with improved connectivity to support durable data integration and reproducibility in the coterminous US Generating a reference flow network with improved connectivity to support durable data integration and reproducibility in the coterminous US
This report presents a reference flow network for the conterminous United States that is built from the best available information from the U.S. Geological Survey, the National Oceanic and Atmospheric Administration National Weather Service, and the U.S. Environmental Protection Agency. The work is intended to support durable data integration and reproducibility. Originating from the...
Authors
David Blodgett, J. Michael Johnson, Andrew Bock
Hydrologic modeling and river corridor applications of HY_Features concepts Hydrologic modeling and river corridor applications of HY_Features concepts
The WaterML2: Part 3 - Surface Hydrology Features (HY_Features) Conceptual Model was published by OGC in 2018. This report documents the use of HY_Features concepts in support of two key tasks: (1) local to continental hydrologic modeling; and (2) referencing river corridor data to hydrographic networks. The presented use cases are applicable in hydroscience research and assessments...
Authors
David Blodgett, J. Michael Johnson, Andrew Bock, Jessica LeRoy, Martin Wernimont
Projected warming disrupts the synchrony of riparian seed dispersal and snowmelt streamflow Projected warming disrupts the synchrony of riparian seed dispersal and snowmelt streamflow
• Globally, spring phenology and abiotic processes are shifting earlier with warming. Differences in the magnitudes of these shifts may decouple the timing of plant resource requirements from resource availability. In riparian forests across the northern hemisphere, warming could decouple seed dispersal from snowmelt peak streamflow, thus reducing moisture and safe-sites for dominant...
Authors
Laura Perry, Patrick Shafroth, Lauren Hay, Steven Markstrom, Andrew Bock
Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions
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...
Authors
Jacob LaFontaine, Rheannon Hart, Lauren E. Hay, William Farmer, Andy Bock, Roland Viger, Steven Markstrom, R. Regan, Jessica Driscoll
Quantifying uncertainty in simulated streamflow and runoff from a continental-scale monthly water balance model Quantifying uncertainty in simulated streamflow and runoff from a continental-scale monthly water balance model
One important component of continental-scale hydrologic modeling is quantifying the level of uncertainty in long-term hydrologic simulations and providing a range of possible simulated streamflow and/or runoff values for gaged and ungaged locations. In this paper, uncertainty was quantified for simulated streamflow and runoff generated from a monthly water balance model (MWBM) at 1575...
Authors
Andrew Bock, William Farmer, Lauren E. Hay
Do downscaled general circulation models reliably simulate historical climatic conditions? Do downscaled general circulation models reliably simulate historical climatic conditions?
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...
Authors
Andrew Bock, Lauren Hay, Gregory J. McCabe, Steven Markstrom, R. Atkinson
Community for Data Integration 2016 annual report Community for Data Integration 2016 annual report
The Community for Data Integration (CDI) represents a dynamic community of practice focused on advancing science data and information management and integration capabilities across the U.S. Geological Survey and the CDI community. This annual report describes the various presentations, activities, and outcomes of the CDI monthly forums, working groups, virtual training series, and other...
Authors
Madison Langseth, Leslie Hsu, Jon Amberg, Norman Bliss, Andrew Bock, Rachel T. Bolus, R. Sky Bristol, Katherine Chase, Theresa Crimmins, Paul Earle, Richard Erickson, A. Everette, Jeff Falgout, John Faundeen, Michael N. Fienen, Rusty Griffin, Michelle R. Guy, Kevin D. Henry, Nancy Hoebelheinrich, Randall J. Hunt, Vivian B. Hutchison, Drew Ignizio, Dana Infante, Catherine Jarnevich, Jeanne Jones, Tim Kern, Scott Leibowitz, Francis Lightsom, R. Marsh, S. Grace McCalla, Marcia McNiff, Jeffrey Morisette, John Nelson, Tamar Norkin, Todd Preston, Alyssa Rosemartin, Roy Sando, Jason Sherba, Richard Signell, Benjamin Sleeter, Eric Sundquist, Colin B. Talbert, Roland J. Viger, Jake F. Weltzin, Sharon Waltman, Marc Weber, Daniel Wieferich, Brad Williams, Lisamarie Windham-Myers
The U.S. Geological Survey Monthly Water Balance Model Futures Portal The U.S. Geological Survey Monthly Water Balance Model Futures Portal
The U.S. Geological Survey Monthly Water Balance Model Futures Portal (https://my.usgs.gov/mows/) is a user-friendly interface that summarizes monthly historical and simulated future conditions for seven hydrologic and meteorological variables (actual evapotranspiration, potential evapotranspiration, precipitation, runoff, snow water equivalent, atmospheric temperature, and streamflow)...
Authors
Andrew Bock, Lauren Hay, Steven L. Markstrom, Christopher Emmerich, Marian Talbert
Spatiotemporal variability of snow depletion curves derived from SNODAS for the conterminous United States, 2004-2013 Spatiotemporal variability of snow depletion curves derived from SNODAS for the conterminous United States, 2004-2013
Assessment of water resources at a national scale is critical for understanding their vulnerability to future change in policy and climate. Representation of the spatiotemporal variability in snowmelt processes in continental-scale hydrologic models is critical for assessment of water resource response to continued climate change. Continental-extent hydrologic models such as the U.S...
Authors
Jessica Driscoll, Lauren Hay, Andrew Bock
The U.S. Geological Survey Monthly Water Balance Model Futures Portal The U.S. Geological Survey Monthly Water Balance Model Futures Portal
Simulations of future climate suggest profiles of temperature and precipitation may differ significantly from those in the past. These changes in climate will likely lead to changes in the hydrologic cycle. As such, natural resource managers are in need of tools that can provide estimates of key components of the hydrologic cycle, uncertainty associated with the estimates, and...
Authors
Andy Bock
Water budget estimation for a water availability assessment across the conterminous United States for water years 2010–2020 Water budget estimation for a water availability assessment across the conterminous United States for water years 2010–2020
This pipeline calculates a simple monthly water budget that includes water supply and consumptive use for thermoelectric, irrigation, and public supply for 12-digit Hydrologic Unit Codes (HUC12) across the conterminous United States for water years 2010-2020. Water budget results also include an assessment of supply and use imbalances within the context of historical climatic conditions...