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Richard Bridge Moore

Richard Moore is a Research Hydrologist in the New England Water Science Center.

Science and Products

Map of the Long Island Sound Dynamic SPARROW Model Area

Long Island Sound Spatially Referenced Regressions on Watershed Attributes (SPARROW) Models

The U.S. Geological Survey, New England Water Science Center, in collaboration with the U.S. Environmental Protection Agency (EPA), is modeling seasonal nutrient loads to Long Island Sound (LIS). Nutrients that originate from within the 41,867-square-mile section of the LIS watershed that is north of the Sound include both point (specific) and nonpoint (widespread) sources. Dynamic modeling of the...
By
New England Water Science Center, USGS Science in Long Island Sound and its Watershed
Long Island Sound Spatially Referenced Regressions on Watershed Attributes (SPARROW) Models

Long Island Sound Spatially Referenced Regressions on Watershed Attributes (SPARROW) Models

The U.S. Geological Survey, New England Water Science Center, in collaboration with the U.S. Environmental Protection Agency (EPA), is modeling seasonal nutrient loads to Long Island Sound (LIS). Nutrients that originate from within the 41,867-square-mile section of the LIS watershed that is north of the Sound include both point (specific) and nonpoint (widespread) sources. Dynamic modeling of the...
Learn More
USGS science for a changing world logo

River Corridor hot spots for biogeochemical processing: a continental scale synthesis

Rivers are the veins of the landscape, providing environmental benefits that are disproportionately high relative to their aerial extent; shedding flood waters, hosting aquatic ecosystems, transporting solutes and energy-rich materials, and storing and transforming pollutants into less harmful forms. From uplands to the coasts, rivers facilitate key biogeochemical reactions that...
By
John Wesley Powell Center for Analysis and Synthesis
River Corridor hot spots for biogeochemical processing: a continental scale synthesis

River Corridor hot spots for biogeochemical processing: a continental scale synthesis

Rivers are the veins of the landscape, providing environmental benefits that are disproportionately high relative to their aerial extent; shedding flood waters, hosting aquatic ecosystems, transporting solutes and energy-rich materials, and storing and transforming pollutants into less harmful forms. From uplands to the coasts, rivers facilitate key biogeochemical reactions that cumulatively
Learn More

Exceedance Probability and Predictor Data for Uranium and Radon concentrations in New Hampshire Groundwater Exceedance Probability and Predictor Data for Uranium and Radon concentrations in New Hampshire Groundwater

Statewide maps of the probability of exceeding a given concentration of either uranium (U) or radon (Rn) in New Hampshire groundwater (represented as statewide rasters) are the product of statistical analyses and are available here. The dependent variables in these statistical models were either 1) the natural log of Rn concentrations or 2) a dichotomous variable indicating the...
By
New England Water Science Center

Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands

Alamagan Volcano is a Quaternary stratovolcano along the Mariana Arc, an active subduction zone in the western Pacific Ocean. Although primarily submerged, its peak reaches above sea level, with subaerially-exposed volcanic deposits dating back through the Holocene to the late Pleistocene. These feature data represent such deposits and other geologic features of Alamagan Volcano...
By
Volcano Hazards Program, Volcano Science Center, Alamagan

Iron fouling data associated with drainage from roadway sites constructed with rock fill in New Hampshire Iron fouling data associated with drainage from roadway sites constructed with rock fill in New Hampshire

This data release contains files that are associated with the publication 'Understanding and predicting iron fouling associated with drainage from roadway sites constructed with rock-fill in New Hampshire, USA'. Each zipped file contains a data table or raster file and an associated metadata file. IronFoulingCutFillData.zip contains a .csv file and .xml metadata file related to the...
By
New England Water Science Center

National Multi Order Hydrologic Position (MOHP) Predictor Data for Groundwater and Groundwater-Quality Modeling National Multi Order Hydrologic Position (MOHP) Predictor Data for Groundwater and Groundwater-Quality Modeling

Multi Order Hydrologic Position (MOHP) raster datasets: Distance from Stream to Divide (DSD) and Lateral Position (LP) have been produced nationally for the 48 contiguous United States at a 30-meter resolution for stream orders 1 through 9. These data are available for testing as predictor variables for various regional and national groundwater-flow and groundwater-quality statistical...
By
Water Resources Mission Area

Geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi Geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi

Kīlauea is an active shield volcano in the southeastern part of the Island of Hawai'i. The middle east rift zone (MERZ) map includes about 27 square kilometers of the MERZ and shows the distribution of the products of 37 separate eruptions during late Holocene time. Lava flows erupted during 1983-96 have reached the mapped area. The subaerial part of the MERZ is 3-4 km wide and about 18...
By
Volcano Hazards Program, Volcano Science Center

Geologic map of Hualalai Volcano, Hawaii Geologic map of Hualalai Volcano, Hawaii

No abstract available.
By
Volcano Hazards Program, Volcano Science Center, Hualālai

Geologic map of the central part of the San Francisco Volcanic Field, north-central Arizona Geologic map of the central part of the San Francisco Volcanic Field, north-central Arizona

The geologic map of the central part of the San Francisco volcanic field (called the Central map area) is one of five adjoining geologic maps (fig. 1) prepared under the Geothermal Research Program of the U.S. Geological Sruvey as a basis for interpreting the history of magmatic activity in the volcanic field. The San Francisco field, which is largely Pliocene and Pleistocene in age, is...
By
San Francisco Volcanic Field

Geologic map of the east part of the San Francisco Volcanic Field, north-central Arizona Geologic map of the east part of the San Francisco Volcanic Field, north-central Arizona

The geologic map of the east part of the San Francisco volcanic field (called the East map area) is one of five adjoining geologic maps (fig. 1) prepared under the Geothermal Research Program of the U.S. Geological Survey as a basis for interpreting the history of magmatic activity in the volcanic field. This map is a revision of an earlier one (Moore and Wolfe, 1976). Detail of...
By
San Francisco Volcanic Field
No results found.
Filter Total Items: 46

User’s guide for the National Hydrography Dataset Plus High Resolution (NHDPlus HR) User’s guide for the National Hydrography Dataset Plus High Resolution (NHDPlus HR)

The National Hydrography Dataset Plus High Resolution (NHDPlus HR) is a scalable hydrologic geospatial fabric or framework, built from (1) the High Resolution (1:24,000-scale or better) National Hydrography Dataset (NHD), (2) nationally complete Watershed Boundary Dataset (WBD), and (3) 1/3-arc-second 3D Elevation Program (3DEP) digital elevation model (DEM) data (at a 10-meter ground...
Authors
Richard Moore, Lucinda McKay, Alan Rea, Timothy Bondelid, Curtis Price, Thomas Dewald, Laura Hayes
By
National Geospatial Program, New England Water Science Center

Predicted uranium and radon concentrations in New Hampshire (USA) groundwater—Using Multi Order Hydrologic Position as predictors Predicted uranium and radon concentrations in New Hampshire (USA) groundwater—Using Multi Order Hydrologic Position as predictors

Two radioactive elements, uranium (U) and radon (Rn), which are of potential concern in New Hampshire (NH) groundwater, are investigated. Exceedance probability maps are tools to highlight locations where the concentrations of undesirable substances in the groundwater may be elevated. Two forms of statistical analysis are used to create exceedance probability maps for U and Rn in NH...
Authors
Richard Moore, Kenneth Belitz, Joseph Ayotte, Terri Arnold, Laura Hayes, Jennifer Sharpe, J. Jeffrey Starn
By
Water Resources Mission Area, New England Water Science Center, Central Midwest Water Science Center

User's guide for the national hydrography dataset plus (NHDPlus) high resolution User's guide for the national hydrography dataset plus (NHDPlus) high resolution

The National Hydrography Dataset Plus High Resolution (NHDPlus HR) is a scalable geospatial hydrography framework built from the High Resolution (1:24,000-scale or better) National Hydrography Dataset (NHD), nationally complete Watershed Boundary Dataset (WBD), and ⅓-arc-second (10-meter ground spacing) 3D Elevation Program (3DEP) digital elevation model (DEM) data. The NHDPlus HR brings...
Authors
Richard Moore, Lucinda McKay, Alan Rea, Timothy Bondelid, Curtis Price, Thomas Dewald, Craig M. Johnston
By
National Geospatial Program, National Hydrography

Multiorder hydrologic position in the conterminous United States: A set of metrics in support of groundwater mapping at regional and national scales Multiorder hydrologic position in the conterminous United States: A set of metrics in support of groundwater mapping at regional and national scales

The location of a point on the landscape within a stream network (hydrologic position) can be an important predictive measure in hydrology. Hydrologic position is defined here by two metrics: lateral position and distance from stream to divide, both measured horizontally. Lateral position (dimensionless) is the relative position of a point between the stream and its watershed divide...
Authors
Kenneth Belitz, Richard Moore, Terri Arnold, Jennifer Sharpe, J. Jeffrey Starn
By
Water Resources Mission Area

Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawai‘i Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawai‘i

This database release contains all the information used to produce Geologic Investigations Series I-2614 (https://pubs.usgs.gov/imap/2614/). The main component of this digital release is a geodatabase prepared using ArcGIS, but Esri shapefiles are included as well. Kīlauea is an active shield volcano in the southeastern part of the Island of Hawai‘i. The middle East Rift Zone (MERZ) map...
Authors
Michael Zoeller, Frank A. Trusdell, Richard B. Moore
By
Volcano Hazards Program, Volcano Science Center

How hydrologic connectivity regulates water quality in river corridors How hydrologic connectivity regulates water quality in river corridors

Downstream flow in rivers is repeatedly delayed by hydrologic exchange with off‐channel storage zones where biogeochemical processing occurs. We present a dimensionless metric that quantifies river connectivity as the balance between downstream flow and the exchange of water with the bed, banks, and floodplains. The degree of connectivity directly influences downstream water quality —...
Authors
Judson Harvey, Jesus Gomez-Velez, Noah Schmadel, Durelle Scott, Elizabeth Boyer, Richard Alexander, Ken Eng, Heather Golden, Albert Kettner, Christopher Konrad, Richard Moore, Jim Pizzuto, Gregory E. Schwarz, Chris Soulsby, Jay Choi
By
Water Resources Mission Area, John Wesley Powell Center for Analysis and Synthesis

Thresholds of lake and reservoir connectivity in river networks control nitrogen removal Thresholds of lake and reservoir connectivity in river networks control nitrogen removal

Lakes, reservoirs, and other ponded waters are ubiquitous features of the aquatic landscape, yet their cumulative role in nitrogen removal in large river basins is often unclear. Here we use predictive modeling, together with comprehensive river water quality, land use, and hydrography datasets, to examine and explain the influences of more than 18,000 ponded waters on nitrogen removal...
Authors
Noah Schmadel, Judson Harvey, Richard Alexander, Gregory E. Schwarz, Richard Moore, Ken Eng, Jesus D. Gomez-Velez, Elizabeth Boyer, Durelle Scott
By
Water Resources Mission Area, John Wesley Powell Center for Analysis and Synthesis, Pennsylvania Water Science Center

Brackish groundwater in the United States Brackish groundwater in the United States

For some parts of the Nation, large-scale development of groundwater has caused decreases in the amount of groundwater that is present in aquifer storage and that discharges to surface-water bodies. Water supply in some areas, particularly in arid and semiarid regions, is not adequate to meet demand, and severe drought is affecting large parts of the United States. Future water demand is...
Authors
Jennifer Stanton, David Anning, Craig J. Brown, Richard Moore, Virginia McGuire, Sharon Qi, Alta C. Harris, Kevin Dennehy, Peter McMahon, James Degnan, John Bohlke
By
Water Resources Mission Area, Arizona Water Science Center, New England Water Science Center, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

The road to NHDPlus — Advancements in digital stream networks and associated catchments The road to NHDPlus — Advancements in digital stream networks and associated catchments

A progression of advancements in Geographic Information Systems techniques for hydrologic network and associated catchment delineation has led to the production of the National Hydrography Dataset Plus (NHDPlus). NHDPlus is a digital stream network for hydrologic modeling with catchments and a suite of related geospatial data. Digital stream networks with associated catchments provide a...
Authors
Richard Moore, Thomas Dewald
By
Water Resources Mission Area, Groundwater and Streamflow Information Program, New England Water Science Center

Database compilation for the geologic map of the San Francisco volcanic field, north-central Arizona Database compilation for the geologic map of the San Francisco volcanic field, north-central Arizona

The main component of this publication is a geologic map database prepared using geographic information system (GIS) applications. The geodatabase of geologic points, lines, and polygons was produced as a compilation from five adjoining map sections originally published as printed maps in 1987 (see references in metadata). Four of the sections (U.S. Geological Survey Miscellaneous Field...
Authors
Joseph Bard, David Ramsey, Edward Wolfe, George Ulrich, Christopher Newhall, Richard Moore, Norman Bailey, Richard Holm
By
Volcano Hazards Program, Volcano Science Center

Nutrient load summaries for major lakes and estuaries of the Eastern United States, 2002 Nutrient load summaries for major lakes and estuaries of the Eastern United States, 2002

Nutrient enrichment of lakes and estuaries across the Nation is widespread. Nutrient enrichment can stimulate excessive plant and algal growth and cause a number of undesirable effects that impair aquatic life and recreational activities and can also result in economic effects. Understanding the amount of nutrients entering lakes and estuaries, the physical characteristics affecting the...
Authors
Michelle Moorman, Anne Hoos, Suzanne Bricker, Richard Moore, Ana María García, Scott Ator
By
Water Resources Mission Area, South Atlantic Water Science Center (SAWSC), USGS Science in Long Island Sound and its Watershed

Simulating stream transport of nutrients in the eastern United States, 2002, using a spatially-referenced regression model and 1:100,000-scale hydrography Simulating stream transport of nutrients in the eastern United States, 2002, using a spatially-referenced regression model and 1:100,000-scale hydrography

Existing Spatially Referenced Regression on Watershed attributes (SPARROW) nutrient models for the northeastern and southeastern regions of the United States were recalibrated to achieve a hydrographically consistent model with which to assess nutrient sources and stream transport and investigate specific management questions about the effects of wetlands and atmospheric deposition on...
Authors
Anne Hoos, Richard Moore, Ana Maria Garcia, Gregory B. Noe, Silvia E. Terziotti, Craig Johnston, Robin Dennis
By
Water Resources Mission Area, Lower Mississippi-Gulf Water Science Center, USGS Science in Long Island Sound and its Watershed
New maps show the probability for radon and uranium in New Hampshire’s groundwater

New maps show the probability for radon and uranium in New Hampshire’s groundwater

PEMBROKE, N.H. – More than half of New Hampshire is underlain by groundwater that has a 50% or higher probability of having elevated levels of radon...

Read Article
New Maps Predict Areas of Elevated Radon, Uranium in New Hampshire’s Groundwater

New Maps Predict Areas of Elevated Radon, Uranium in New Hampshire’s Groundwater

U.S. Geological Survey (USGS) scientists have produced statewide maps that show where elevated concentrations of radon and uranium may occur in New...

Read Article

Science and Products

Map of the Long Island Sound Dynamic SPARROW Model Area

Long Island Sound Spatially Referenced Regressions on Watershed Attributes (SPARROW) Models

The U.S. Geological Survey, New England Water Science Center, in collaboration with the U.S. Environmental Protection Agency (EPA), is modeling seasonal nutrient loads to Long Island Sound (LIS). Nutrients that originate from within the 41,867-square-mile section of the LIS watershed that is north of the Sound include both point (specific) and nonpoint (widespread) sources. Dynamic modeling of the...
By
New England Water Science Center, USGS Science in Long Island Sound and its Watershed
Long Island Sound Spatially Referenced Regressions on Watershed Attributes (SPARROW) Models

Long Island Sound Spatially Referenced Regressions on Watershed Attributes (SPARROW) Models

The U.S. Geological Survey, New England Water Science Center, in collaboration with the U.S. Environmental Protection Agency (EPA), is modeling seasonal nutrient loads to Long Island Sound (LIS). Nutrients that originate from within the 41,867-square-mile section of the LIS watershed that is north of the Sound include both point (specific) and nonpoint (widespread) sources. Dynamic modeling of the...
Learn More
USGS science for a changing world logo

River Corridor hot spots for biogeochemical processing: a continental scale synthesis

Rivers are the veins of the landscape, providing environmental benefits that are disproportionately high relative to their aerial extent; shedding flood waters, hosting aquatic ecosystems, transporting solutes and energy-rich materials, and storing and transforming pollutants into less harmful forms. From uplands to the coasts, rivers facilitate key biogeochemical reactions that...
By
John Wesley Powell Center for Analysis and Synthesis
River Corridor hot spots for biogeochemical processing: a continental scale synthesis

River Corridor hot spots for biogeochemical processing: a continental scale synthesis

Rivers are the veins of the landscape, providing environmental benefits that are disproportionately high relative to their aerial extent; shedding flood waters, hosting aquatic ecosystems, transporting solutes and energy-rich materials, and storing and transforming pollutants into less harmful forms. From uplands to the coasts, rivers facilitate key biogeochemical reactions that cumulatively
Learn More

Exceedance Probability and Predictor Data for Uranium and Radon concentrations in New Hampshire Groundwater Exceedance Probability and Predictor Data for Uranium and Radon concentrations in New Hampshire Groundwater

Statewide maps of the probability of exceeding a given concentration of either uranium (U) or radon (Rn) in New Hampshire groundwater (represented as statewide rasters) are the product of statistical analyses and are available here. The dependent variables in these statistical models were either 1) the natural log of Rn concentrations or 2) a dichotomous variable indicating the...
By
New England Water Science Center

Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands

Alamagan Volcano is a Quaternary stratovolcano along the Mariana Arc, an active subduction zone in the western Pacific Ocean. Although primarily submerged, its peak reaches above sea level, with subaerially-exposed volcanic deposits dating back through the Holocene to the late Pleistocene. These feature data represent such deposits and other geologic features of Alamagan Volcano...
By
Volcano Hazards Program, Volcano Science Center, Alamagan

Iron fouling data associated with drainage from roadway sites constructed with rock fill in New Hampshire Iron fouling data associated with drainage from roadway sites constructed with rock fill in New Hampshire

This data release contains files that are associated with the publication 'Understanding and predicting iron fouling associated with drainage from roadway sites constructed with rock-fill in New Hampshire, USA'. Each zipped file contains a data table or raster file and an associated metadata file. IronFoulingCutFillData.zip contains a .csv file and .xml metadata file related to the...
By
New England Water Science Center

National Multi Order Hydrologic Position (MOHP) Predictor Data for Groundwater and Groundwater-Quality Modeling National Multi Order Hydrologic Position (MOHP) Predictor Data for Groundwater and Groundwater-Quality Modeling

Multi Order Hydrologic Position (MOHP) raster datasets: Distance from Stream to Divide (DSD) and Lateral Position (LP) have been produced nationally for the 48 contiguous United States at a 30-meter resolution for stream orders 1 through 9. These data are available for testing as predictor variables for various regional and national groundwater-flow and groundwater-quality statistical...
By
Water Resources Mission Area

Geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi Geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi

Kīlauea is an active shield volcano in the southeastern part of the Island of Hawai'i. The middle east rift zone (MERZ) map includes about 27 square kilometers of the MERZ and shows the distribution of the products of 37 separate eruptions during late Holocene time. Lava flows erupted during 1983-96 have reached the mapped area. The subaerial part of the MERZ is 3-4 km wide and about 18...
By
Volcano Hazards Program, Volcano Science Center

Geologic map of Hualalai Volcano, Hawaii Geologic map of Hualalai Volcano, Hawaii

No abstract available.
By
Volcano Hazards Program, Volcano Science Center, Hualālai

Geologic map of the central part of the San Francisco Volcanic Field, north-central Arizona Geologic map of the central part of the San Francisco Volcanic Field, north-central Arizona

The geologic map of the central part of the San Francisco volcanic field (called the Central map area) is one of five adjoining geologic maps (fig. 1) prepared under the Geothermal Research Program of the U.S. Geological Sruvey as a basis for interpreting the history of magmatic activity in the volcanic field. The San Francisco field, which is largely Pliocene and Pleistocene in age, is...
By
San Francisco Volcanic Field

Geologic map of the east part of the San Francisco Volcanic Field, north-central Arizona Geologic map of the east part of the San Francisco Volcanic Field, north-central Arizona

The geologic map of the east part of the San Francisco volcanic field (called the East map area) is one of five adjoining geologic maps (fig. 1) prepared under the Geothermal Research Program of the U.S. Geological Survey as a basis for interpreting the history of magmatic activity in the volcanic field. This map is a revision of an earlier one (Moore and Wolfe, 1976). Detail of...
By
San Francisco Volcanic Field
No results found.
Filter Total Items: 46

User’s guide for the National Hydrography Dataset Plus High Resolution (NHDPlus HR) User’s guide for the National Hydrography Dataset Plus High Resolution (NHDPlus HR)

The National Hydrography Dataset Plus High Resolution (NHDPlus HR) is a scalable hydrologic geospatial fabric or framework, built from (1) the High Resolution (1:24,000-scale or better) National Hydrography Dataset (NHD), (2) nationally complete Watershed Boundary Dataset (WBD), and (3) 1/3-arc-second 3D Elevation Program (3DEP) digital elevation model (DEM) data (at a 10-meter ground...
Authors
Richard Moore, Lucinda McKay, Alan Rea, Timothy Bondelid, Curtis Price, Thomas Dewald, Laura Hayes
By
National Geospatial Program, New England Water Science Center

Predicted uranium and radon concentrations in New Hampshire (USA) groundwater—Using Multi Order Hydrologic Position as predictors Predicted uranium and radon concentrations in New Hampshire (USA) groundwater—Using Multi Order Hydrologic Position as predictors

Two radioactive elements, uranium (U) and radon (Rn), which are of potential concern in New Hampshire (NH) groundwater, are investigated. Exceedance probability maps are tools to highlight locations where the concentrations of undesirable substances in the groundwater may be elevated. Two forms of statistical analysis are used to create exceedance probability maps for U and Rn in NH...
Authors
Richard Moore, Kenneth Belitz, Joseph Ayotte, Terri Arnold, Laura Hayes, Jennifer Sharpe, J. Jeffrey Starn
By
Water Resources Mission Area, New England Water Science Center, Central Midwest Water Science Center

User's guide for the national hydrography dataset plus (NHDPlus) high resolution User's guide for the national hydrography dataset plus (NHDPlus) high resolution

The National Hydrography Dataset Plus High Resolution (NHDPlus HR) is a scalable geospatial hydrography framework built from the High Resolution (1:24,000-scale or better) National Hydrography Dataset (NHD), nationally complete Watershed Boundary Dataset (WBD), and ⅓-arc-second (10-meter ground spacing) 3D Elevation Program (3DEP) digital elevation model (DEM) data. The NHDPlus HR brings...
Authors
Richard Moore, Lucinda McKay, Alan Rea, Timothy Bondelid, Curtis Price, Thomas Dewald, Craig M. Johnston
By
National Geospatial Program, National Hydrography

Multiorder hydrologic position in the conterminous United States: A set of metrics in support of groundwater mapping at regional and national scales Multiorder hydrologic position in the conterminous United States: A set of metrics in support of groundwater mapping at regional and national scales

The location of a point on the landscape within a stream network (hydrologic position) can be an important predictive measure in hydrology. Hydrologic position is defined here by two metrics: lateral position and distance from stream to divide, both measured horizontally. Lateral position (dimensionless) is the relative position of a point between the stream and its watershed divide...
Authors
Kenneth Belitz, Richard Moore, Terri Arnold, Jennifer Sharpe, J. Jeffrey Starn
By
Water Resources Mission Area

Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawai‘i Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawai‘i

This database release contains all the information used to produce Geologic Investigations Series I-2614 (https://pubs.usgs.gov/imap/2614/). The main component of this digital release is a geodatabase prepared using ArcGIS, but Esri shapefiles are included as well. Kīlauea is an active shield volcano in the southeastern part of the Island of Hawai‘i. The middle East Rift Zone (MERZ) map...
Authors
Michael Zoeller, Frank A. Trusdell, Richard B. Moore
By
Volcano Hazards Program, Volcano Science Center

How hydrologic connectivity regulates water quality in river corridors How hydrologic connectivity regulates water quality in river corridors

Downstream flow in rivers is repeatedly delayed by hydrologic exchange with off‐channel storage zones where biogeochemical processing occurs. We present a dimensionless metric that quantifies river connectivity as the balance between downstream flow and the exchange of water with the bed, banks, and floodplains. The degree of connectivity directly influences downstream water quality —...
Authors
Judson Harvey, Jesus Gomez-Velez, Noah Schmadel, Durelle Scott, Elizabeth Boyer, Richard Alexander, Ken Eng, Heather Golden, Albert Kettner, Christopher Konrad, Richard Moore, Jim Pizzuto, Gregory E. Schwarz, Chris Soulsby, Jay Choi
By
Water Resources Mission Area, John Wesley Powell Center for Analysis and Synthesis

Thresholds of lake and reservoir connectivity in river networks control nitrogen removal Thresholds of lake and reservoir connectivity in river networks control nitrogen removal

Lakes, reservoirs, and other ponded waters are ubiquitous features of the aquatic landscape, yet their cumulative role in nitrogen removal in large river basins is often unclear. Here we use predictive modeling, together with comprehensive river water quality, land use, and hydrography datasets, to examine and explain the influences of more than 18,000 ponded waters on nitrogen removal...
Authors
Noah Schmadel, Judson Harvey, Richard Alexander, Gregory E. Schwarz, Richard Moore, Ken Eng, Jesus D. Gomez-Velez, Elizabeth Boyer, Durelle Scott
By
Water Resources Mission Area, John Wesley Powell Center for Analysis and Synthesis, Pennsylvania Water Science Center

Brackish groundwater in the United States Brackish groundwater in the United States

For some parts of the Nation, large-scale development of groundwater has caused decreases in the amount of groundwater that is present in aquifer storage and that discharges to surface-water bodies. Water supply in some areas, particularly in arid and semiarid regions, is not adequate to meet demand, and severe drought is affecting large parts of the United States. Future water demand is...
Authors
Jennifer Stanton, David Anning, Craig J. Brown, Richard Moore, Virginia McGuire, Sharon Qi, Alta C. Harris, Kevin Dennehy, Peter McMahon, James Degnan, John Bohlke
By
Water Resources Mission Area, Arizona Water Science Center, New England Water Science Center, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

The road to NHDPlus — Advancements in digital stream networks and associated catchments The road to NHDPlus — Advancements in digital stream networks and associated catchments

A progression of advancements in Geographic Information Systems techniques for hydrologic network and associated catchment delineation has led to the production of the National Hydrography Dataset Plus (NHDPlus). NHDPlus is a digital stream network for hydrologic modeling with catchments and a suite of related geospatial data. Digital stream networks with associated catchments provide a...
Authors
Richard Moore, Thomas Dewald
By
Water Resources Mission Area, Groundwater and Streamflow Information Program, New England Water Science Center

Database compilation for the geologic map of the San Francisco volcanic field, north-central Arizona Database compilation for the geologic map of the San Francisco volcanic field, north-central Arizona

The main component of this publication is a geologic map database prepared using geographic information system (GIS) applications. The geodatabase of geologic points, lines, and polygons was produced as a compilation from five adjoining map sections originally published as printed maps in 1987 (see references in metadata). Four of the sections (U.S. Geological Survey Miscellaneous Field...
Authors
Joseph Bard, David Ramsey, Edward Wolfe, George Ulrich, Christopher Newhall, Richard Moore, Norman Bailey, Richard Holm
By
Volcano Hazards Program, Volcano Science Center

Nutrient load summaries for major lakes and estuaries of the Eastern United States, 2002 Nutrient load summaries for major lakes and estuaries of the Eastern United States, 2002

Nutrient enrichment of lakes and estuaries across the Nation is widespread. Nutrient enrichment can stimulate excessive plant and algal growth and cause a number of undesirable effects that impair aquatic life and recreational activities and can also result in economic effects. Understanding the amount of nutrients entering lakes and estuaries, the physical characteristics affecting the...
Authors
Michelle Moorman, Anne Hoos, Suzanne Bricker, Richard Moore, Ana María García, Scott Ator
By
Water Resources Mission Area, South Atlantic Water Science Center (SAWSC), USGS Science in Long Island Sound and its Watershed

Simulating stream transport of nutrients in the eastern United States, 2002, using a spatially-referenced regression model and 1:100,000-scale hydrography Simulating stream transport of nutrients in the eastern United States, 2002, using a spatially-referenced regression model and 1:100,000-scale hydrography

Existing Spatially Referenced Regression on Watershed attributes (SPARROW) nutrient models for the northeastern and southeastern regions of the United States were recalibrated to achieve a hydrographically consistent model with which to assess nutrient sources and stream transport and investigate specific management questions about the effects of wetlands and atmospheric deposition on...
Authors
Anne Hoos, Richard Moore, Ana Maria Garcia, Gregory B. Noe, Silvia E. Terziotti, Craig Johnston, Robin Dennis
By
Water Resources Mission Area, Lower Mississippi-Gulf Water Science Center, USGS Science in Long Island Sound and its Watershed
New maps show the probability for radon and uranium in New Hampshire’s groundwater

New maps show the probability for radon and uranium in New Hampshire’s groundwater

PEMBROKE, N.H. – More than half of New Hampshire is underlain by groundwater that has a 50% or higher probability of having elevated levels of radon...

Read Article
New Maps Predict Areas of Elevated Radon, Uranium in New Hampshire’s Groundwater

New Maps Predict Areas of Elevated Radon, Uranium in New Hampshire’s Groundwater

U.S. Geological Survey (USGS) scientists have produced statewide maps that show where elevated concentrations of radon and uranium may occur in New...

Read Article
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