Unified Interior Regions

Maryland

Maryland's water supply comes from streams, rivers, groundwater and reservoirs. Many of these systems flow to the Chesapeake Bay, the Nation's largest estuary. This complex ecosystem has been degraded due to the impact of human-population increase. The MD-DC-DE Water Science Center studies the impacts this has on water quality, habitats and biological communities.

Maryland Water

Maryland - Delaware - Washington D.C. Water Science Center

Maryland -  Delaware - Washington D.C. Water Science Center

5522 Research Park Drive
Catonsville, MD 21228

Phone: 443-498-5500
Fax: 442-498-5510

MD-DE-DC Water

Patuxent Wildlife Research Center

Patuxent Wildlife Research Center

12100 Beech Forest Road
Laurel, MD 20708-4039

Phone: 301-497-5000

Patuxent Research

States L2 Landing Page Tabs

Maryland's water supply comes from streams, rivers, groundwater and reservoirs. Many of these systems flow to the Chesapeake Bay, the Nation's largest estuary. This complex ecosystem has been degraded due to the impact of human-population increase. The MD-DC-DE Water Science Center studies the impacts this has on water quality, habitats and biological communities.

Maryland Water

News

Date published: June 24, 2020

Pavement is contributing sediment to urban streams

Dirt, sand, and other particulate material on parking lots and streets is washing off into urban streams, reports a new study by the U.S. Geological Survey Regional Stream Quality Assessment. The study used novel particle tracers to determine that particles washed from pavement made up...

Date published: April 3, 2020

Mercury Bioaccumulation in the Chesapeake Bay Watershed

Despite the prevalence of mercury contamination in the Chesapeake Bay, large-scale patterns of mercury concentrations, and potential risks to fish, wildlife, and humans across the watershed, are poorly understood.

Filter Total Items: 103
Date published: June 28, 2020
Status: Active

MD-DE-DC WSC Water Use & Water Supply Capabilities

In Maryland, public supply water is delivered to users for domestic, commercial, and industrial purposes. Most is used for public services, such as public pools, parks, firefighting, water and wastewater treatment, and municipal buildings, and some is unaccounted for because of leaks, flushing, tower maintenance, and other system losses. 5.7 million Marylanders get their water from the public...

Date published: June 26, 2020
Status: Active

MD-DE-DC Modeling Capabilities

USGS models are widely used to predict responses of hydrologic systems to changing stresses, such as increases in precipitation or ground-water pumping rates, as well as to predict the fate and movement of solutes and contaminants in water.

The USGS is at the forefront of devising new techniques and computer software to solve practical problems in the study of water resources....

Date published: June 22, 2020
Status: Active

MD-DE-DC Coding and Statistical Data Capabilities

This site is dedicated to Coding and Statistical Data that is produced and analyzed by scientists at the MD-DE-DC WSC. We use many tools at the USGS including software exclusively developed for, sometimes written by the USGS. 

Date published: June 12, 2020
Status: Active

MD-DE-DC Water Quality Capabilities

Water quality is a measure of the suitability of water for a particular use based on selected physical, chemical, and biological characteristics. Water-quality monitoring is used to help water-resource managers understand and avert potential negative effects of man-made and natural stresses on water resources, evaluate trends, and compare to water-quality criteria.

One of our primary...

Date published: June 4, 2020
Status: Active

Vernal Pool Inundation Models

This website provides an application for exploring modeling results from a U.S. Geological Survey (USGS) project titled ...

Date published: May 15, 2020
Status: Active

MD-DE-DC Surface Water Capabilities

As an integrated part of the WSC, the Surface Water Team monitors and conducts investigative research to describe and improve our region's understanding of extreme hydrologic events - droughts, floods and flood hazards, and coastal or bay storm surge and inundation. They also facilitate measurement stream stages, streamflow, and computes daily streamflow at locations in Maryland, Delaware, and...

Date published: April 17, 2020
Status: Active

The Response of Coastal Wetlands to Sea-level Rise: Understanding how Macroscale Drivers Influence Local Processes and Feedbacks

The purpose of this work is to advance our understanding of how coastal wetland responses to sea-level rise (SLR) within the conterminous United States are likely to vary as a function of local, regional, and macroscale drivers, including climate. Based on our interactions with managers and decision makers, as well as our knowledge of the current state of the science, we propose to: (a)...

Date published: April 7, 2020
Status: Active

Effects of Short Chain Chlorinated Paraffins (SCCPs) on developing birds

The Challenge: Short-Chain Chlorinated Paraffins (SCCPs) are complex technical mixtures of polychlorinated n-alkanes used in lubricants and coolants in metalworking, as flame retardants, and in paints, adhesives, sealants, textiles and polymeric materials, plastics and rubber. SCCPs are of concern because they are globally transported, bioaccumulate in wildlife and humans, and are...

Date published: March 16, 2020
Status: Active

Pathogens in the Aquatic Environment – Waterfowl, Avian Influenza

This project focuses on understanding the prevalence and strains of avian influenza viruses in the aquatic environment and how this compares to those circulating within wild birds in the same area.

Date published: March 12, 2020
Status: Active

Productivity of Species of Concern – Least Tern and Common Tern on Poplar Island Restoration Site

This project aims to understand the factors driving breeding success of multiple waterbird species, with special emphasis on Least and Common Terns (two species of concern) on Poplar Island Environmental Restoration Project.This project aims to understand the factors driving breeding success of multiple waterbird species, with special emphasis on Least and Common Terns (two species of concern...

Date published: February 26, 2020
Status: Active

Impacts of coastal and watershed changes on upper estuaries: causes and implications of wetland ecosystem transitions along the US Atlantic and Gulf Coasts

Estuaries and their surrounding wetlands are coastal transition zones where freshwater rivers meet tidal seawater.  As sea levels rise, tidal forces move saltier water farther upstream, extending into freshwater wetland areas. Human changes to the surrounding landscape may amplify the effects of this tidal extension, impacting the resiliency and function of the upper estuarine wetlands. One...

Contacts: Ken Krauss, Ph.D., Gregory Noe, Camille LaFosse Stagg, Ph.D., Hongqing Wang, Ph.D., Eric J Ward, Ph.D., Jamie A. Duberstein, William H. Conner, Zhaohua Dai, Thomas L. O'Halloran
Filter Total Items: 29
Date published: April 23, 2020

Domestic Wells in the United States

Domestic wells provide drinking water supply for approximately 40 million people in the United States. Knowing the location of these wells, and the populations they serve, is important for identifying heavily used aquifers, locations susceptible to contamination, and populations potentially impacted by poor-quality groundwater. 

Date published: January 1, 2019

Biomarker analysis of cold seeps along the United States Atlantic Margin

Results of lipid biomarker concentration and compound specific isotopes analyzed from authigenic carbonates and surrounding sediment collected from Baltimore and Norfolk seep fields along the United States Atlantic Margin are presented in csv format. Samples were collected by the U.S. Geological Survey and Duke University between 2012 and 2015 using remotely operated vehicles (ROVs). Geochemi...

Date published: August 28, 2018

USGS Domestic Continuous (Unconventional) Oil & Gas Assessments, 2000-Present

Interactively explore assessment summary information for continuous (unconventional) assessments conducted at the USGS from 2000-2018. The assessment results data used to generate this visualization can be downloaded here in Excel Format.  These data represent all assessment results...

Date published: January 19, 2018

Oblique Aerial Photography Viewer

Obique photos offer a unique perspective of the coast. Features such as beach erosion or accretion, dune erosion and overwash can all be clearly characterized in this imagery. It also documents coastal infrastructure, as well as the damage that infrastructure may incur as the result of an impacting hurricane. 

Date published: October 19, 2017

Pharmaceuticals in water, fish, and ospreys nesting in Delaware River and Bay

Exposure of wildlife to Active Pharmaceutical Ingredients (APIs) is likely to occur but evidence of hazard and risk is limited. One exposure pathway that has received attention is trophic transfer of APIs in a water-fish-osprey food chain. 

Date published: August 24, 2017

Coastal Change Hazards Portal

Interactive access to coastal change science and data for our Nation’s coasts. Information and products are organized within three coastal change hazard themes: 1) extreme storms, 2) shoreline change, and 3) sea-level rise. Displays probabilities of coastal erosion.

Date published: August 7, 2017

Atypical Feeding Behavior of Long-tailed Ducks in the Wake of a Commercial Fishing Boat while Clamming

Data represents analyses of gizzard and gullet (esophagus and proventriculus) of nine ducks using traditional techniques

Filter Total Items: 7
Black and grey map of the contiguous 48 states shaded by the number of people using domestic wells per square kilometer (2010)
April 23, 2020

Domestic wells provide drinking water supply for approximately 40 million people in the United States. Knowing the location of these wells, and the populations they serve, is important for identifying heavily used aquifers, locations susceptible to contamination, and populations potentially impacted by poor-quality groundwater. 

Clarksburg, Maryland Story Map
October 4, 2018

Story Map: Land cover change in Clarksburg, Maryland between 2004 (left) and 2012 (right)

Groundwater Wells on Assateague Island
July 14, 2016

Well locations at Assateague Island National Seashore, Worcester County, MD.

Digital Elevation Model in the Atchafalaya Basin, LA
April 19, 2016

The 3DEP products and services available through The National Map consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service and bulk point query service. All 3DEP products are available, free of charge and without use restrictions.

USGS Storm-Tide Mapper and Data Services
March 8, 2016

The USGS Storm Tide Mapper is a tool for viewing, analyzing, and accessing storm tide data collected during and after hurricanes and Nor’easters. The USGS Storm Tide Mapper will continue to provide a unified and consistent source of real-time and archived storm-tide data.

Filter Total Items: 20
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Year Published: 2020

Hurricane Sandy effects on coastal marsh elevation change

High-magnitude storm events such as Hurricane Sandy are powerful agents of geomorphic change in coastal marshes, potentially altering their surface elevation trajectories. But how do a storm’s impacts vary across a large region spanning a variety of wetland settings and storm exposures and intensities. We determined the short-term impacts of...

Yeates, Alice G.; Grace, James; Olker, Jennifer H.; Guntenspergen, Glenn R.; Cahoon, Donald; Adamowicz, Susan C.; Anisfeld, Shimon C.; Barrett, Nels; Benzecry, Alice; Blum, Linda K.; Christian, Rober T; Grzyb, Joseph; Kracauer Hartig, Ellen; Hines Leo, Kelly; Lerberg, Scott; Lynch, James C.; Maher, Nicole; Megonigal, J Patrick; Reay, William G.; Siok, Drexel; Starke, Adam; Turner, Vincent; Warren, Scott
Attribution: Northern Prairie Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, California Water Science Center, Water Resources, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Western Fisheries Research Center, Ecosystems, Fisheries Program, Caribbean-Florida Water Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Northern Prairie Wildlife Research Center, Ecosystems, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Fort Collins Science Center, Ecosystems, Fort Collins Science Center, Ecosystems, United States of America, Pacific Coastal and Marine Science Center, Pacific Coastal and Marine Science Center, National Wildlife Health Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Water Resources, Columbia Environmental Research Center, Ecosystems, Region 4: Mississippi Basin, Climate Adaptation Science Centers, Land Resources, Climate Adaptation Science Centers, California Water Science Center, Water Resources, Core Science Systems, National Geospatial Program, National Geospatial Technical Operations Center, Core Science Systems, National Geospatial Program, National Geospatial Technical Operations Center, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Community for Data Integration (CDI), Science Analytics and Synthesis (SAS), United States of America, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Southwest Biological Science Center, Ecosystems, Western Ecological Research Center, Ecosystems, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Washington Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Southwest Biological Science Center, Ecosystems, Science and Decisions Center, Alaska Science Center, Ecosystems, Region 11: Alaska, Utah Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Water, New Jersey Water Science Center, Water Resources, Region 4: Mississippi Basin, New Jersey, United States of America, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Upper Midwest Water Science Center, Water Resources, Washington Water Science Center, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Fort Collins Science Center, Ecosystems, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Northern Prairie Wildlife Research Center, Ecosystems, Pacific Coastal and Marine Science Center, National Geospatial Program, Upper Midwest Water Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Woods Hole Coastal and Marine Science Center, Region 1: North Atlantic-Appalachian, Wyoming-Montana Water Science Center, Water Resources, Florence Bascom Geoscience Center, Western Fisheries Research Center, Ecosystems, Fisheries Program, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, New York, United States of America

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Year Published: 2019

Response of nitrogen loading to the Chesapeake Bay to source reduction and land use change scenarios: A SPARROW‐informed analysis

In response to concerns regarding the health of streams and receiving waters, the United States Environmental Protection Agency established a total maximum daily load for nitrogen in the Chesapeake Bay watershed for which practices must be in place by 2025 resulting in an expected 25% reduction in load from 2009 levels. The response of total...

Miller, Matthew; Capel, Paul D.; Garcia, Ana M.; Ator, Scott W.
Attribution: Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, United States of America, Wildland Fire Science, Western Fisheries Research Center, Ecosystems, Fisheries Program, Geology, Minerals, Energy, and Geophysics Science Center, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Pacific Coastal and Marine Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Water Resources, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Western Ecological Research Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, United States of America, Ohio-Kentucky-Indiana Water Science Center, Volcano Hazards Program Office, Science and Decisions Center, Water Resources, Water, Pennsylvania Water Science Center, Region 4: Mississippi Basin, Pennsylvania, Geology, Minerals, Energy, and Geophysics Science Center, Water Resources, New York Water Science Center, Water Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Change Science Program, United States of America, Volcano Hazards Program Office, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, California Water Science Center, Water Resources, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Alaska, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Virginia and West Virginia Water Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Upper Midwest Water Science Center, Kansas Water Science Center, Water Resources, Great Lakes Science Center, Ecosystems, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, California Water Science Center, Water Resources, Arizona Water Science Center, Water Resources, Alaska Science Center, Ecosystems, Region 11: Alaska, Great Lakes Science Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Western Fisheries Research Center, Ecosystems, Fisheries Program, Northern Prairie Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, Wildland Fire Science, Geology, Minerals, Energy, and Geophysics Science Center, Florence Bascom Geoscience Center, Region 7: Upper Colorado Basin, Eastern Energy Resources Science Center, Energy Resources Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Climate Adaptation Science Centers, Climate Adaptation Science Centers, Pacific Island Ecosystems Research Center, Ecosystems, Volcano Hazards Program Office, Eastern Energy Resources Science Center, Energy Resources Program, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Dakota Water Science Center, Western Ecological Research Center, Ecosystems, Dakota Water Science Center, Water Resources, Water, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Pennsylvania, Western Geographic Science Center, Western Geographic Science Center, United States of America, Wildland Fire Science, Upper Midwest Environmental Sciences Center, Ecosystems, Biology and Ecosystems, Chesapeake Bay Activities, Core Science Systems, Science and Decisions Center, United States of America, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Southwest Biological Science Center, Ecosystems, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, EROS CalVal Center of Excellence, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Oregon Water Science Center, Water Resources, Northern Prairie Wildlife Research Center, Ecosystems, Land Change Science Program, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Oklahoma Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Biology and Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Fish & Wildlife Disease, United States of America, Office of Science Quality and Integrity, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, United States of America, Pacific Coastal and Marine Science Center, Pacific Coastal and Marine Science Center, Water Resources, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Lower Mississippi-Gulf Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Water Resources, Pacific Coastal and Marine Science Center, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, Peru, Volcano Hazards Program Office, Oregon Water Science Center, Water Resources, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Volcano Hazards Program Office, Alaska Science Center, Region 11: Alaska, United States of America, Wildland Fire Science, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Idaho Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, California Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Water, Pennsylvania Water Science Center, Water Resources, West Virginia, United States of America

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Year Published: 2019

Simple metrics predict salt-marsh sediment fluxes

The growth (or decay) of salt marshes depends on suspended-sediment flux into and out of the marsh. Suspended-sediment concentration (SSC) is a key element of the flux, and SSC-based metrics reflect the long-term sediment-flux trajectories of a variety of salt marshes. One metric, the flood–ebb SSC differential, correlates with area-normalized...

Nowacki, Daniel J. ; Ganju, Neil Kamal
Attribution: Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, United States of America, Wildland Fire Science, Western Fisheries Research Center, Ecosystems, Fisheries Program, Geology, Minerals, Energy, and Geophysics Science Center, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Pacific Coastal and Marine Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Water Resources, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Western Ecological Research Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, United States of America, Ohio-Kentucky-Indiana Water Science Center, Volcano Hazards Program Office, Science and Decisions Center, Water Resources, Water, Pennsylvania Water Science Center, Region 4: Mississippi Basin, Pennsylvania, Geology, Minerals, Energy, and Geophysics Science Center, Water Resources, New York Water Science Center, Water Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Resources, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Land Change Science Program, United States of America, Volcano Hazards Program Office, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, California Water Science Center, Water Resources, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Alaska, United States of America, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Virginia and West Virginia Water Science Center, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Upper Midwest Water Science Center, Kansas Water Science Center, Water Resources, Great Lakes Science Center, Ecosystems, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, California Water Science Center, Water Resources, Arizona Water Science Center, Water Resources, Alaska Science Center, Ecosystems, Region 11: Alaska, Great Lakes Science Center, Ecosystems, Upper Midwest Environmental Sciences Center, Ecosystems, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Western Fisheries Research Center, Ecosystems, Fisheries Program, Northern Prairie Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, Wildland Fire Science, Geology, Minerals, Energy, and Geophysics Science Center, Florence Bascom Geoscience Center, Region 7: Upper Colorado Basin, Eastern Energy Resources Science Center, Energy Resources Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Climate Adaptation Science Centers, Climate Adaptation Science Centers, Pacific Island Ecosystems Research Center, Ecosystems, Volcano Hazards Program Office, Eastern Energy Resources Science Center, Energy Resources Program, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Geosciences and Environmental Change Science Center, Region 7: Upper Colorado Basin, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Dakota Water Science Center, Western Ecological Research Center, Ecosystems, Dakota Water Science Center, Water Resources, Water, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Pennsylvania, Western Geographic Science Center, Western Geographic Science Center, United States of America, Wildland Fire Science, Upper Midwest Environmental Sciences Center, Ecosystems, Biology and Ecosystems, Chesapeake Bay Activities, Core Science Systems, Science and Decisions Center, United States of America, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Southwest Biological Science Center, Ecosystems, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, United States of America, EROS CalVal Center of Excellence, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Oregon Water Science Center, Water Resources, Northern Prairie Wildlife Research Center, Ecosystems, Land Change Science Program, United States of America, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Oklahoma Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Biology and Ecosystems, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Fish & Wildlife Disease, United States of America, Office of Science Quality and Integrity, Colorado Water Science Center, Water Resources, Region 7: Upper Colorado Basin, United States of America, Pacific Coastal and Marine Science Center, Pacific Coastal and Marine Science Center, Water Resources, New Mexico Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Lower Mississippi-Gulf Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Water Resources, Pacific Coastal and Marine Science Center, Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, Peru, Volcano Hazards Program Office, Oregon Water Science Center, Water Resources, Woods Hole Coastal and Marine Science Center, Natural Hazards, Coastal and Marine Hazards and Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Volcano Hazards Program Office, Alaska Science Center, Region 11: Alaska, United States of America, Wildland Fire Science, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Idaho Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, California Water Science Center, Water Resources, Western Fisheries Research Center, Ecosystems, Fisheries Program, Water, Pennsylvania Water Science Center, Water Resources, West Virginia, United States of America, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, New England Water Science Center, Water Resources, Region 4: Mississippi Basin, Geology, Minerals, Energy, and Geophysics Science Center, Region 7: Upper Colorado Basin, Northern Prairie Wildlife Research Center, Ecosystems, United States of America, Wildland Fire Science, Science Analytics and Synthesis (SAS), Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Northern Prairie Wildlife Research Center, Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, Water Resources, Central Midwest Water Science Center, Western Fisheries Research Center, Ecosystems, Fisheries Program, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Geology, Minerals, Energy, and Geophysics Science Center, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, Earth Resources Observation and Science Center, United States of America, Western Fisheries Research Center, Ecosystems, Fisheries Program, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Upper Midwest Water Science Center, Fort Collins Science Center, Ecosystems, United States of America, Wildland Fire Science, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, United States of America, Molecular Ecology Laboratory, Oceans, Woods Hole Coastal and Marine Science Center, Coastal and Marine Hazards and Resources Program, New Jersey, United States of America

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Year Published: 2019

Toward explaining nitrogen and phosphorus trends in Chesapeake Bay tributaries, 1992-2012

Understanding trends in stream chemistry is critical to watershed management, and often complicated by multiple contaminant sources and landscape conditions changing over varying time scales. We adapted spatially-referenced regression (SPARROW) to infer causes of recent nutrient trends in Chesapeake Bay tributaries by relating observed fluxes...

Ator, Scott; Garcia, Ana M.; Schwarz, Gregory E.; Blomquist, Joel; Sekellick, Andrew
Attribution: Pacific Coastal and Marine Science Center, Pacific Coastal and Marine Science Center, Western Fisheries Research Center, Ecosystems, Fisheries Program, Core Science Systems, National Geospatial Program, United States of America, Center of Excellence for Geospatial Information Science (CEGIS), Minerals, Geology, Geophysics, and Geochemistry Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, Colorado, United States of America, Other, Southwest Biological Science Center, Ecosystems, United States of America, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Western Ecological Research Center, Ecosystems, Great Lakes Science Center, Ecosystems, Geosciences and Environmental Change Science Center, Mineral Resources Program, Region 7: Upper Colorado Basin, United States of America, Alaska Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Central Energy Resources Science Center, Energy Resources Program, Region 7: Upper Colorado Basin, National Geospatial Program, United States of America, The National Map - Delivery, Alaska Science Center, Ecosystems, Region 11: Alaska, Lower Mississippi-Gulf Water Science Center, Region 4: Mississippi Basin, Eastern Energy Resources Science Center, Energy Resources Program, United States of America, Western Ecological Research Center, Ecosystems, Southwest Biological Science Center, Ecosystems, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Natural Hazards, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, California, United States of America, Central Midwest Water Science Center, Alaska Science Center, Ecosystems, Region 11: Alaska, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, Colorado, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, North Carolina, United States of America, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Landslide Hazards Program, Region 7: Upper Colorado Basin, United States of America, North Central Climate Adaptation Science Center, Western Fisheries Research Center, Ecosystems, Fisheries Program, Northern Prairie Wildlife Research Center, Ecosystems, Cooperative Research Units, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, St. Petersburg Coastal and Marine Science Center, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Upper Midwest Water Science Center, Ecosystems, Region 11: Alaska, California Water Science Center, Water Resources, Region 7: Upper Colorado Basin, Pacific Island Ecosystems Research Center, Ecosystems, Geosciences and Environmental Change Science Center, Land Change Science Program, Region 7: Upper Colorado Basin, United States of America, Environmental Health, New Jersey Water Science Center, Water Resources, Contaminant Biology Program, Region 1: North Atlantic-Appalachian, United States of America, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Water Resources, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Alaska Science Center, Ecosystems, Region 11: Alaska, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, South Atlantic Water Science Center (SAWSC), Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Upper Midwest Water Science Center, Upper Midwest Environmental Sciences Center, Ecosystems, Region 1: North Atlantic-Appalachian, Water Resources, Biology and Ecosystems, National Wildlife Health Center, Ecosystems, Fish & Wildlife Disease, United States of America, Astrogeology Science Center, Natural Hazards, California Water Science Center, Water Resources, Forest and Rangeland Ecosystem Science Center (FRESC), Ecosystems, United States of America, Wildland Fire Science, Upper Midwest Water Science Center, Geology, Geophysics, and Geochemistry Science Center, Region 7: Upper Colorado Basin, Fort Collins Science Center, Ecosystems, Oceans, Pacific Coastal and Marine Science Center, Coastal and Marine Hazards and Resources Program, Region 11: Alaska, United States of America, Geology, Minerals, Energy, and Geophysics Science Center, Region 7: Upper Colorado Basin, Water Resources, Water Resources, Water Resources, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Alaska Science Center, Ecosystems, Region 11: Alaska, Leetown Science Center, Ecosystems, Region 1: North Atlantic-Appalachian, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, United States of America, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Fort Collins Science Center, Ecosystems, Geologic Hazards Science Center, Natural Hazards, Region 7: Upper Colorado Basin, Lower Mississippi-Gulf Water Science Center, Water Resources, Groundwater and Streamflow Information Program, Region 1: North Atlantic-Appalachian, Fort Collins Science Center, Ecosystems, Natural Hazards, Geologic Hazards Science Center, Natural Hazards, Earthquake Hazards Program, Region 7: Upper Colorado Basin, Pakistan, Alaska Science Center, Ecosystems, Region 11: Alaska, Water, Pennsylvania Water Science Center, Water Resources, West Virginia, United States of America

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Year Published: 2016

High-resolution geophysical data collected along the Delmarva Peninsula, 2014, USGS Field Activity 2014-002-FA

The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. A U.S. Geological Survey cruise was conducted in the summer of 2014 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework...

Pendleton, Elizabeth; Ackerman, Seth D.; Baldwin, Wayne E.; Danforth, William W.; Foster, David S.; Thieler, E. Robert; Brothers, Laura L.
Pendleton, E.A., Ackerman, S.D., Baldwin, W.E., Danforth, W.W., Foster, D.S., Thieler, E.R., and Brothers, L.L. 2015, High-resolution geophysical data collected along the Delmarva Peninsula, 2014, USGS Field Activity 2014-002-FA (ver. 2.0, March 2015): U.S. Geological Survey data release. http://dx.doi.org/10.5066/F7MW2F60

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Year Published: 2016

Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974

The Defense Minerals Administration (DMA), Defense Minerals Exploration Administration (DMEA), and Office of Minerals Exploration (OME) mineral exploration programs were active over the period 1950–1974. Under these programs, the Federal Government contributed financial assistance in the exploration for certain strategic and critical minerals. The...

Frank, David G.
Attribution: Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Southwest Biological Science Center, Ecosystems, , Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Cooperative Research Units, , Water Resources, Region 2: South Atlantic-Gulf (Includes Puerto Rico and the U.S. Virgin Islands), Great Lakes Science Center, Ecosystems, Alaska Science Center, Ecosystems, Region 11: Alaska, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Cooperative Research Units, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, , Drought, Western Ecological Research Center, Ecosystems, Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Florida, United States of America, New Jersey Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Region 1: North Atlantic-Appalachian, Hurricane Sandy, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Earthquake Science Center, Natural Hazards, Earthquake Hazards Program, Water Resources, , San Francisco Bay and Sacramento-San Joaquin Delta Estuary, Upper Midwest Water Science Center, Water Resources, Southwest Biological Science Center, Ecosystems, , Alaska Science Center, Ecosystems, Region 11: Alaska, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, , Volcano Hazards Program Office, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Cooperative Research Units, Minerals, Alaska Science Center, Energy and Minerals, Mineral Resources Program, Region 7: Upper Colorado Basin, Alaska, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Alaska Science Center, Ecosystems, Region 11: Alaska, Water Resources, Alaska Science Center, Ecosystems, Region 11: Alaska, Cooperative Research Units, Alaska Climate Adaptation Science Center, Land Resources, Region 11: Alaska, Southwest Biological Science Center, Ecosystems, , Southwest Biological Science Center, Ecosystems, , , John Wesley Powell Center for Analysis and Synthesis, Environmental Health, Toxic Substances Hydrology Program, John Wesley Powell Center for Analysis and Synthesis, Texas Water Science Center, Water Resources, Region 6: Arkansas-Rio Grande-Texas-Gulf, Northern Rocky Mountain Science Center (NOROCK), Ecosystems, Energy & Wildlife, , United States of America, Western Geographic Science Center, Florence Bascom Geoscience Center, Region 1: North Atlantic-Appalachian, Pacific Coastal and Marine Science Center, Cooperative Research Units, Central Midwest Water Science Center, Water Resources, Region 4: Mississippi Basin, United States of America, , Energy and Minerals, Science and Decisions Center, Minerals, , Energy and Minerals, Mineral Resources Program, Region 7: Upper Colorado Basin, Colorado, Kansas Water Science Center, Water Resources, , Kansas Water Science Center, Water Resources, , Wetland and Aquatic Research Center, Ecosystems, Region 4: Mississippi Basin, Minerals, National Minerals Information Center, Mineral Resources Program, Region 1: North Atlantic-Appalachian, United States of America, Patuxent Wildlife Research Center, Ecosystems, Region 1: North Atlantic-Appalachian, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, California, United States of America, San Francisco Bay and Sacramento-San Joaquin Delta Estuary, Minerals, , Energy and Minerals, Science and Decisions Center, Nevada, United States of America, Western Geographic Science Center, Upper Midwest Water Science Center, Environmental Health, Toxic Substances Hydrology Program, Western Ecological Research Center, Ecosystems, Upper Midwest Water Science Center, Water Resources, Biology and Ecosystems, Western Fisheries Research Center, Ecosystems, Fisheries Program, United States of America, Geosciences and Environmental Change Science Center, Groundwater and Streamflow Information Program, Region 7: Upper Colorado Basin, Cooperative Research Units, Dakota Water Science Center, Water Resources, United States of America, Water Resources, Groundwater and Streamflow Information Program, United States of America, Minerals, , Energy and Minerals, Science and Decisions Center, Wyoming
Frank, D.G., 2016, Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974: U.S. Geological Survey Data Series 1004, http://dx.doi.org/10.3133/ds1004.

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Year Published: 2016

Spatial and temporal variation in microcystins occurrence in wadeable streams in the southeastern USA

Despite historical observations of potential microcystin-producing cyanobacteria (including Leptolyngbya,Phormidium, Pseudoanabaena, and Anabaena species) in 74% of headwater streams in Alabama, Georgia, South Carolina, and North Carolina (USA) from 1993 to 2011, fluvial cyanotoxin occurrence has not been systematically assessed in the...

Loftin, Keith A.; Clark, Jimmy M.; Journey, Celeste A.; Kolpin, Dana W.; Van Metre, Peter C.; Bradley, Paul M.
Loftin, K.A., J.M. Clark, C.A. Journey, D.W. Kolpin, P.C. Van Metre, and P.M. Bradley. Spatial and temporal variation in microcystins occurrence in wadeable streams in the southeastern United States. Environmental Toxicology & Chemistry. http://dx.doi.org/10.1002/etc.3391

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Year Published: 2015

U.S. Geological Survey Chesapeake science strategy, 2015-2025—Informing ecosystem management of America’s largest estuary

Executive Summary The U.S. Geological Survey (USGS) has the critical role of providing scientific information to improve the understanding and management of the Chesapeake Bay ecosystem. The USGS works with Federal, State, and academic science partners to provide research and monitoring, and communicate results of these activities to enhance...

Phillips, Scott; Blomquist, Joel D.; Phillips, Scott; Blomquist, Joel D.; Bennett, Mark; Berlin, Alicia; Blazer, Vicki; Claggett, Peter R.; Faulkner, Stephen; Hyer, Kenneth; Ladino, Cassandra; Moyer, Douglas; Muir, Rachel; Noe, Gregory B.; Phillips, Patrick J.
Phillips, Scott, and Blomquist, Joel, eds., 2015, U.S. Geological Survey Chesapeake science strategy, 2015–2025—Informing ecosystem management of America’s largest estuary: U.S. Geological Survey Open-File Report 2015–1162, 43 p., http://dx.doi.org/10.3133/ofr20151162.

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Year Published: 2008

Algal and Invertebrate Community Composition along Agricultural Gradients: A Comparative Study from Two Regions of the Eastern United States

Benthic algal and invertebrate communities in two Coastal Plain regions of the Eastern United States?the Delmarva Peninsula (27 sites) and Georgia Upper Coastal Plain (29 sites)?were assessed to determine if aspects of agricultural land use and nutrient conditions (dissolved and whole-water nitrogen and phosphorus) could be linked to biological...

Calhoun, Daniel L.; Gregory, M. Brian; Weyers, Holly S.
Algal and Invertebrate Community Composition along Agricultural Gradients: A Comparative Study from Two Regions of the Eastern United States; 2008; SIR; 2008-5046; Calhoun, Daniel L.; Gregory, M. Brian; Weyers, Holly S.

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Year Published: 2008

Simulated fate and transport of metolachlor in the unsaturated zone, Maryland, USA

An unsaturated-zone transport model was used to examine the transport and fate of metolachlor applied to an agricultural site in Maryland, USA. The study site was instrumented to collect data on soil-water content, soil-water potential, ground water levels, major ions, pesticides, and nutrients from the unsaturated zone during 2002-2004. The data...

Bayless, E.R.; Capel, P.D.; Barbash, J.E.; Webb, R.M.T.; Hancock, T.L.C.; Lampe, D.C.
Simulated fate and transport of metolachlor in the unsaturated zone, Maryland, USA; 2008; Article; Journal; Journal of Environmental Quality; Bayless, E. R.; Capel, P. D.; Barbash, J. E.; Webb, R. M. T.; Hancock, T. L. C.; Lampe, D. C.

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Year Published: 2007

Development of Relations of Stream Stage to Channel Geometry and Discharge for Stream Segments Simulated with Hydrologic Simulation Program-Fortran (HSPF), Chesapeake Bay Watershed and Adjacent Parts of Virginia, Maryland, and Delaware

The U.S. Geological Survey (USGS), U.S. Environmental Protection Agency (USEPA), Chesapeake Bay Program (CBP), Interstate Commission for the Potomac River Basin (ICPRB), Maryland Department of the Environment (MDE), Virginia Department of Conservation and Recreation (VADCR), and University of Maryland (UMD) are collaborating to improve the...

Moyer, Douglas; Bennett, Mark
Development of Relations of Stream Stage to Channel Geometry and Discharge for Stream Segments Simulated with Hydrologic Simulation Program-Fortran (HSPF), Chesapeake Bay Watershed and Adjacent Parts of Virginia, Maryland, and Delaware; 2007; SIR; 2007-5135; Moyer, Douglas L.; Bennett, Mark R.

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Year Published: 1998

Freshwater use in Maryland, 1995

Wheeler, Judith C.
Freshwater use in Maryland, 1995; 1998; FS; 115-98; Wheeler, Judith C.

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Floodplain and Channel Evaluation Tool (FACET)
December 4, 2019

The Floodplain and Evaluation Tool (FACET) is an open-source python tool that maps the floodplain extent and derives reach-scale summaries of stream and floodplain geomorphic measurements from high-resolution digital elevation models (DEMs).

USGS
November 14, 2017

Capture-recapture software to correct raw counts of wildlife fatalities using trial experiments for carcass detecition probability and persistence time.

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A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 3, 2020

USGS measures spring flooding at Chesapeake bay's largest tributary

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

...
A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 3, 2020

USGS measures spring flooding at Chesapeake bay's largest tributary

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

...
A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 3, 2020

USGS measures spring flooding at Chesapeake bay's largest tributary

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

...
March 1, 2020

Karst Hazards Research at USGS Florence Bascom Geoscience Center (AD)

The Florence Bascom Geoscience Center conducts geologic research using digital elevation models to map karst systems and sinkhole hazards in the United States. Understanding these complex geologic systems helps to inform land use planning and development decisions. The

March 1, 2020

Karst Hazards Research at the USGS Florence Bascom Geoscience Center

The Florence Bascom Geoscience Center conducts geologic research using digital elevation models to map karst systems and sinkhole hazards in the United States. Understanding these complex geologic systems helps to inform land use planning and development decisions. The 

Image from an application that navigates users through USGS National Oil and Gas Assessment Provinces
November 14, 2018

National Oil and Gas Assessment Provinces

This is a graphic from the USGS National Oil and Gas Assessment Explorer application, which allows user to drill into 70 oil and gas assessment provinces throughout the United States.

USGS scientists collecting fossils from a Calvert Formation sample site
October 22, 2018

Geologists Sampling at Scientists Cliffs

Photo shows USGS geologists obtaining microfossil and biomarker samples from the Calvert Formation at Scientists Cliffs. 

October 5, 2018

Bandit Download

This screencast is a tutorial on how to find Bandit for download as well as finding Bandit resources via the BBL's webpages. 
 

Image shows USGS scientists in PFDs collecting a seismic airgun while at sea
September 6, 2018

Retrieving Seismic Airguns

USGS personnel on the deck of the R/V Hugh R. Sharp during retrieval of seismic airguns.  The streamer that receives the seismic signals generated by the airguns is towed behind the ship and is here shown

...
Dead Run, an urban creek
April 11, 2018

Dead Run is a typical urban creek in the Baltimore area (photo 2)

Dead Run is an urban creek in Catonsville, Maryland, near Baltimore. Research has found that about half of the bed sediment originates as particulate matter on pavement that then is washed into the creek via storm drains.

Dead Run, a typical urban creek, and precipitation station
April 11, 2018

Dead Run is a typical urban creek in the Baltimore area (Photo 3)

Dead Run is an urban creek in Catonsville, Maryland, near Baltimore. Research has found that about half of the bed sediment originates as particulate matter on pavement that then is washed into the creek via storm drains.

Downcutting in Dead Run, an urbanized creek
April 11, 2018

Dead Run is a typical urban creek in the Baltimore area (Photo 4)

Dead Run is an urban creek in Catonsville, Maryland, near Baltimore. Research has found that about half of the bed sediment originates as particulate matter on pavement that then is washed into the creek via storm drains.

The "Best Report" for 2014 is "Hydrogeologic characterization and assessment of bioremediation of chlorinated benzenes and benzene in wetland areas, Standard Chlorine of Delaware, Inc. Superfund Site, New Castle County, Delaware, 2009-12"

Hydrogeologic characterization and assessment of bioremediation of chlorinated benzenes and benzene in wetland areas
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Dead Run, a typical urban creek
June 24, 2020

Dirt, sand, and other particulate material on parking lots and streets is washing off into urban streams, reports a new study by the U.S. Geological Survey Regional Stream Quality Assessment. The study used novel particle tracers to determine that particles washed from pavement made up almost half of the streambed sediment in parts of Dead Run, an urban stream in the Baltimore area.

Invalid Scald ID.

April 3, 2020

Despite the prevalence of mercury contamination in the Chesapeake Bay, large-scale patterns of mercury concentrations, and potential risks to fish, wildlife, and humans across the watershed, are poorly understood.

Large stormwater retention pond compared to a green stormwater infrastructure dry pond with native vegetation.
November 18, 2019

A new study finds that a high density of green stormwater infrastructure can provide enhanced mitigation of peak flows and runoff volumes compared to large, detention-based stormwater control practices.

Image shows a map of the Eastern United States with the boundaries of the Marcellus Shale superimposed
October 3, 2019

The Marcellus Shale and Point Pleasant-Utica Shale formations of the Appalachian Basin contain an estimated mean of 214 trillion cubic feet of undiscovered, technically recoverable continuous resources of natural gas, according to new USGS assessments.

A screenshot of the USGS Coastal Change Hazards portal which shows Hurricane Dorian off the North Carolina coast.
September 6, 2019

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Dorian, visit the USGS Hurricane Dorian page at www.usgs.gov/dorian.

Young Whooping Crane
March 13, 2019

This week marks a significant milestone in the conservation and recovery of the endangered whooping crane. On March 11 and 13, the U.S. Geological Survey’s Patuxent Wildlife Research Center transferred its last two cranes of the approximately 75 that were in its flock to other institutions, closing out more than 50 years of the center’s whooping crane research and captive breeding success.

dark space with golden solar flare
March 5, 2019

A new report and map published by the U.S. Geological Survey provides critical insight to electric power grid operators across the northeastern United States in the event of a once-per-century magnetic superstorm.  

Landsat landcover classification along the Maryland and Virginia coast
November 16, 2018

New study analyzed Landsat satellite imagery to document historical and recent (post-Hurricane Sandy) wetland changes that occurred along the Maryland and Virginia coastlines since 1984.

Two people, wearing safety gear, stand on board a ship and retrieve an instrument, attached to heavy cable, from the water..
November 1, 2018

In August 2018, the USGS Coastal/Marine Hazards and Resources Program (CMHRP) completed the Mid-Atlantic Resource Imaging Experiment (MATRIX), a three-week cruise that acquired more than 2,000 kilometers of multichannel seismic data between Hudson Canyon and Cape Hatteras on the U.S. Atlantic margin.

Photograph of a sonobuoy launch
September 20, 2018

Data acquired by the U.S. Geological Survey on the U.S. Atlantic Margin in August 2018 reveal new information about the distribution of gas hydrates in the sector stretching from the upper continental slope to deep water areas offshore New Jersey to North Carolina.

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Maryland - Delaware - Washington D.C. Water Science Center

Maryland -  Delaware - Washington D.C. Water Science Center

5522 Research Park Drive
Catonsville, MD 21228

Phone: 443-498-5500
Fax: 442-498-5510

MD-DE-DC Water

Patuxent Wildlife Research Center

Patuxent Wildlife Research Center

12100 Beech Forest Road
Laurel, MD 20708-4039

Phone: 301-497-5000

Patuxent Research