Publications
Access selected publications from the USGS Maryland-Delaware-DC Water Science Center. To access the full, searchable catalog of USGS publications, please visit the USGS Publications Warehouse.
Filter Total Items: 381
Hydraulic Geometry Characteristics of Continuous-Record Streamflow-Gaging Stations on Four Urban Watersheds Along the Main Stem of Gwynns Falls, Baltimore County and Baltimore City, Maryland Hydraulic Geometry Characteristics of Continuous-Record Streamflow-Gaging Stations on Four Urban Watersheds Along the Main Stem of Gwynns Falls, Baltimore County and Baltimore City, Maryland
Four continuous-record streamflow-gaging stations are currently being operated by the U.S. Geological Survey on the main stem of Gwynns Falls in western Baltimore County and Baltimore City, Maryland. The four streamflow-gaging stations drain urban or suburban watersheds with significantly different drainage areas. In addition to providing continuous- record discharge data at these four...
Authors
Edward J. Doheny, Gary T. Fisher
The National Streamflow Statistics Program: A Computer Program for Estimating Streamflow Statistics for Ungaged Sites The National Streamflow Statistics Program: A Computer Program for Estimating Streamflow Statistics for Ungaged Sites
The National Streamflow Statistics (NSS) Program is a computer program that should be useful to engineers, hydrologists, and others for planning, management, and design applications. NSS compiles all current U.S. Geological Survey (USGS) regional regression equations for estimating streamflow statistics at ungaged sites in an easy-to-use interface that operates on computers with...
Authors
Kernell G. Ries, J. B. With sections by Atkins, P.R. Hummel, Matthew J. Gray, R. Dusenbury, M.E. Jennings, W.H. Kirby, H. C. Riggs, V.B. Sauer, W.O. Thomas
Synthesis of U.S. Geological Survey science for the Chesapeake Bay ecosystem and implications for environmental management Synthesis of U.S. Geological Survey science for the Chesapeake Bay ecosystem and implications for environmental management
The purpose of this report is to present a synthesis of the USGS Chesapeake Bay science related to the 2001-06 goals and provide implications for environmental management. The report provides USGS findings that address the science needs of the Chesapeake Bay Program (CBP) restoration goals and includes summaries of 1. land-use change; 2. water quality in the watershed, including...
Authors
Scott W. Ator, Vicki S. Blazer, John W. Brakebill, Donald R. Cahoon, Peter R. Claggett, Thomas M. Cronin, Judith M. Denver, Christine L. Densmore, Allen C. Gellis, Cliff R. Hupp, Jurate M. Landwehr, Michael J. Langland, Christopher A. Ottinger, Milan J. Pavich, Matthew C. Perry, Scott W. Phillips, Stephen D. Preston, Jeff P. Raffensperger, Barnett A. Rattner, Nancy B. Rybicki, Debra A. Willard
A Science Plan for a Comprehensive Regional Assessment of the Atlantic Coastal Plain Aquifer System in Maryland A Science Plan for a Comprehensive Regional Assessment of the Atlantic Coastal Plain Aquifer System in Maryland
The Maryland Coastal Plain region is, at present, largely dependent upon ground water for its water supply. Decades of increasing pumpage have caused ground-water levels in parts of the Maryland Coastal Plain to decline by as much as 2 feet per year in some areas of southern Maryland. Continued declines at this rate could affect the long-term sustainability of ground-water resources in...
Authors
Robert J. Shedlock, David W. Bolton, Emery T. Cleaves, James M. Gerhart, Mark R. Nardi
Effects of Withdrawals on Ground-Water Levels in Southern Maryland and the Adjacent Eastern Shore, 1980-2005 Effects of Withdrawals on Ground-Water Levels in Southern Maryland and the Adjacent Eastern Shore, 1980-2005
Ground water is the primary source of water supply in most areas of Maryland?s Atlantic Coastal Plain, including Southern Maryland. The counties in this area are experiencing some of the most rapid growth and development in the State, resulting in an increased demand for ground-water production. The cooperative, basic water-data program of the U.S. Geological Survey and the Maryland...
Authors
Daniel J. Soeder, Jeff P. Raffensperger, Mark R. Nardi
Pre-Restoration Geomorphic Characteristics of Minebank Run, Baltimore County, Maryland, 2002-04 Pre-Restoration Geomorphic Characteristics of Minebank Run, Baltimore County, Maryland, 2002-04
Data collected from 2002 through 2004 were used to assess geomorphic characteristics and geomorphic changes over time in a selected reach of Minebank Run, a small urban watershed near Towson, Maryland, prior to its physical restoration in 2004 and 2005. Longitudinal profiles of the channel bed, water surface, and bank features were developed from field surveys. Changes in cross-section...
Authors
Edward J. Doheny, Roger J. Starsoneck, Paul M. Mayer, Elise A. Striz
Changes in streamflow and water quality in selected nontidal basins in the Chesapeake Bay Watershed, 1985-2004 Changes in streamflow and water quality in selected nontidal basins in the Chesapeake Bay Watershed, 1985-2004
As part of an annual evaluation of water-quality conditions by the Chesapeake Bay Program, water-quality and streamflow data from 32 sites in nontidal parts of the Chesapeake Bay watershed were analyzed to document annual nutrient and sediment trends for 1985 through 2004. This study also formalized different trend tests and methodologies used in assessing the effectiveness of man...
Authors
Michael J. Langland, Jeff P. Raffensperger, Douglas Moyer, Jurate M. Landwehr, Gregory E. Schwarz
Water resources data Maryland, Delaware, and Washington, D.C., water year 2005, Volume 2. Ground-water data Water resources data Maryland, Delaware, and Washington, D.C., water year 2005, Volume 2. Ground-water data
Water resources data for the 2005 water year for Maryland, Delaware, and Washington, D.C. consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water Data) contains water levels at 352 observation wells, discharge records for 4 springs, and water quality at 118 wells. Locations of ground-water level wells are shown on figures 6 and 7...
Authors
Stephen E. Curtin, Deborah A. Bringman, Elizabeth H. Marchand
U.S. Geological Survey Chesapeake Bay Studies: Scientific Solutions for a Healthy Bay and Watershed U.S. Geological Survey Chesapeake Bay Studies: Scientific Solutions for a Healthy Bay and Watershed
The U.S. Geological Survey (USGS), the science agency for the Department of Interior (DOI), has the critical role of providing objective science to document and understand ecosystem change in the Chesapeake Bay and its watershed. The human population in the Bay watershed, which grew from 8.1 million in 1950 to almost 16 million in 2000, has resulted in degraded water quality, loss of...
Authors
Scott Phillips
Simulation of nutrient and sediment concentrations and loads in the Delaware inland bays watershed: Extension of the hydrologic and water-quality model to ungaged segments Simulation of nutrient and sediment concentrations and loads in the Delaware inland bays watershed: Extension of the hydrologic and water-quality model to ungaged segments
Rapid population increases, agriculture, and industrial practices have been identified as important sources of excessive nutrients and sediments in the Delaware Inland Bays watershed. The amount and effect of excessive nutrients and sediments in the Inland Bays watershed have been well documented by the Delaware Geological Survey, the Delaware Department of Natural Resources and...
Authors
Angelica L. Gutierrez-Magness
Proceedings of the U.S. Geological Survey Sixth Biennial Geographic Information Science Workshop, Denver, Colorado, April 24-28, 2006 Proceedings of the U.S. Geological Survey Sixth Biennial Geographic Information Science Workshop, Denver, Colorado, April 24-28, 2006
The U.S. Geological Survey's (USGS) Sixth Biennial Geographic Information Science Workshop April 24 - 28, 2006, at the Denver Federal Center in Denver, Colorado, provides a unique opportunity for multi-disciplinary Geographic Information Systems (GIS) and associated scientific professionals to share, learn, present, and discuss a wide variety of geospatial-related topics. Information is...
Authors
John W. Brakebill, Jennifer B. Sieverling, Peter G. Chirico
Water resources data Maryland, Delaware, and Washington, D.C.,water year 2005, Volume 1. Surface-water data Water resources data Maryland, Delaware, and Washington, D.C.,water year 2005, Volume 1. Surface-water data
Water resources data for the 2005 water year for Maryland, Delaware, and Washington, D.C. consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs. This volume (Volume 1. Surface-Water Data) contains records for water discharge at 145 gaging stations; stage and contents of 1 reservoir; stage only for 2 tidal gaging station; and...
Authors
Richard W. Saffer, Robert H. Pentz, Anthony J. Tallman