David S Armstrong (Former Employee)
Science and Products
Filter Total Items: 18
Assessment of habitat, fish communities, and streamflow requirements for habitat protection, Ipswich River, Massachusetts, 1998-99
The relations among stream habitat, fish communities, and hydrologic conditions were investigated in the Ipswich River Basin in northeastern Massachusetts. Data were assessed from 27 sites on the mainstem of the Ipswich River from July to September 1998 and from 10 sites on 5 major tributaries in July and August 1999. Habitat assessments made in 1998 determined that in a year with sustained stream
Authors
David S. Armstrong, Todd A. Richards, Gene W. Parker
Hydrologic indices for nontidal wetlands
Two sets of hydrologic indices were developed to characterize the water-budget components of nontidal wetlands. The first set consisted of six water-budget indices for input and output variables, and the second set consisted of two hydrologic interaction indices derived from the water-budget indices. The indices then were applied to 19 wetlands with previously published water-budget data. Two tril
Authors
Robert M. Lent, Peter K. Weiskel, Forest P. Lyford, David S. Armstrong
Stream Stability and Scour Assessments at Bridges in Massachusetts
In 1989, the Federal Highway Administration mandated that every state establish a program to evaluate the vulnerability to floods of all bridges over water. The Massachusetts Highway Department entered into a cooperative effort with the U.S. Geological Survey to comply with this mandate. Geomorphic and hydraulic characteristics were collected and were used to assess the processes that affect strea
Authors
Gene W. Parker, Lisa Bratton, David S. Armstrong
Spatial variability of streambed properties related to stream-channel geomorphology, and base flow of a gaining stream in glaciated north-central Minnesota
No abstract available.
Authors
T.A. Petersen, D.S. Armstrong, J. R. Stark, D. S. Hansen
Water quality of selected wetland streams in central and eastern Massachusetts, 1988-89
No abstract available.
Authors
David S. Armstrong, Robert M. Lent
Stream-aquifer interactions in the Straight River area, Becker and Hubbard counties, Minnesota
The Straight River, in north-central Minnesota, is a trout stream having cold, clear water. The 75-square-mile Straight River watershed contributes flow to the stream. The watershed is underlain by highly transmissive surficial and confined-drift aquifers. Ground-water discharge from these aquifers sustains flow in the Straight River, and the cold water supports a population of trout. Water withdr
Authors
J. R. Stark, David S. Armstrong, Daniel R. Zwilling
Non-USGS Publications**
Armstrong, D.S., and McAdams, T., 1990, Minnesota groundwater bibliography, V. II: Minnesota Department of Natural Resources, Division of Waters, St. Paul, Minn., 117 p
Armstrong, D.S., 1989, Minnesota groundwater bibliography, Vol. I: Minnesota Department of Natural Resources, Division of Waters, St. Paul, Minn., 102 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 18
Assessment of habitat, fish communities, and streamflow requirements for habitat protection, Ipswich River, Massachusetts, 1998-99
The relations among stream habitat, fish communities, and hydrologic conditions were investigated in the Ipswich River Basin in northeastern Massachusetts. Data were assessed from 27 sites on the mainstem of the Ipswich River from July to September 1998 and from 10 sites on 5 major tributaries in July and August 1999. Habitat assessments made in 1998 determined that in a year with sustained stream
Authors
David S. Armstrong, Todd A. Richards, Gene W. Parker
Hydrologic indices for nontidal wetlands
Two sets of hydrologic indices were developed to characterize the water-budget components of nontidal wetlands. The first set consisted of six water-budget indices for input and output variables, and the second set consisted of two hydrologic interaction indices derived from the water-budget indices. The indices then were applied to 19 wetlands with previously published water-budget data. Two tril
Authors
Robert M. Lent, Peter K. Weiskel, Forest P. Lyford, David S. Armstrong
Stream Stability and Scour Assessments at Bridges in Massachusetts
In 1989, the Federal Highway Administration mandated that every state establish a program to evaluate the vulnerability to floods of all bridges over water. The Massachusetts Highway Department entered into a cooperative effort with the U.S. Geological Survey to comply with this mandate. Geomorphic and hydraulic characteristics were collected and were used to assess the processes that affect strea
Authors
Gene W. Parker, Lisa Bratton, David S. Armstrong
Spatial variability of streambed properties related to stream-channel geomorphology, and base flow of a gaining stream in glaciated north-central Minnesota
No abstract available.
Authors
T.A. Petersen, D.S. Armstrong, J. R. Stark, D. S. Hansen
Water quality of selected wetland streams in central and eastern Massachusetts, 1988-89
No abstract available.
Authors
David S. Armstrong, Robert M. Lent
Stream-aquifer interactions in the Straight River area, Becker and Hubbard counties, Minnesota
The Straight River, in north-central Minnesota, is a trout stream having cold, clear water. The 75-square-mile Straight River watershed contributes flow to the stream. The watershed is underlain by highly transmissive surficial and confined-drift aquifers. Ground-water discharge from these aquifers sustains flow in the Straight River, and the cold water supports a population of trout. Water withdr
Authors
J. R. Stark, David S. Armstrong, Daniel R. Zwilling
Non-USGS Publications**
Armstrong, D.S., and McAdams, T., 1990, Minnesota groundwater bibliography, V. II: Minnesota Department of Natural Resources, Division of Waters, St. Paul, Minn., 117 p
Armstrong, D.S., 1989, Minnesota groundwater bibliography, Vol. I: Minnesota Department of Natural Resources, Division of Waters, St. Paul, Minn., 102 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.