Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16786
Dinoflagellate-cyst census data from the seabed samples of Wall and others (1977) and Turon (1984)
No abstract available.
Authors
Lucy E. Edwards, Victoria A.S. Andrle
Water-resources programs and hydrologic-information needs, Marion County, Indiana, 1987
Water resources are abundant in Marion County, Indiana, and have been developed for public and industrial supply, energy generation, irrigation, and recreation. The largest water withdrawals are from surface water, and the two largest water uses are public supply and cooling water for electrical-generating plants. Water-resources programs in the county are carried out by Federal, State and local a
Authors
R.F. Duwelius
Effect of wave-current interaction on wind-driven circulation in narrow, shallow embayments
The effect of wind waves on the steady wind-driven circulation in a narrow, shallow bay is investigated with a two-dimensional (y, z) circulation model and the Grant and Madsen [1979] bottom-boundary layer model, which includes wave-current interaction. A constant wind stress is applied in the along-channel x direction to a channel with a constant cross-sectional profile h(y). The wind-induced flu
Authors
Richard P. Signell, Robert C. Beardsley, H. C. Graber, A. Capotondi
Accumulation of bank-top sediment on the western slope of Great Bahama Bank: rapid progradation of a carbonate megabank
High-resolution seismic profiles and submersible observations along the leeward slope of western Great Bahama Bank show large-scale export of bank-top sediment and rapid progradation of the slope during the Holocene. A wedge-shaped sequence, up to 90 m thick, is present along most of the slope and consists of predominantly aragonite mud derived from the bank since flooding of the platform 6-8 ka.
Authors
R. Jude Wilber, John D. Milliman, Robert B. Halley
Sediment movement along the U.S. east coast continental shelf-I. Estimates of bottom stress using the Grant-Madsen model and near-bottom wave and current measurements
Bottom stress is calculated for several long-term time-series observations, made on the U.S. east coast continental shelf during winter, using the wave-current interaction and moveable bed models of Grant and Madsen (1979, Journal of Geophysical Research, 84, 1797-1808; 1982, Journal of Geophysical Research, 87, 469-482). The wave and current measurements were obtained by means of a bottom tripod
Authors
V.D. Lyne, B. Butman, W.D. Grant
Willie takes a field trip; coloring book
This coloring book is an educational tool designed to instruct children on some of the field activities commonly associated with the collection of water resource data. Through the use of line drawings and brief descriptive text, young readers will follow little Willie and his Uncle Bill as they spend a pleasant day in the field measuring streamflow, collecting sediment samples, making groundwater
Authors
Donald V. Arvin
Technique for estimating depths of 100-year floods in Pennsylvania
Techniques are developed for estimating 100-year flood depths in natural channels of unregulated Pennsylvania streams that drain less than 2,200 square miles. Equations and graphs are presented relating the depth of the 100-year flood above median stage and drainage area in five defined hydrologic areas in the State. Another graph defines the relation between drainage area and median depth of flow
Authors
Herbert N. Flippo
Effects of acidic precipitation on the water quality of streams in the Laurel Hill area, Somerset County, Pennsylvania, 1983-86
Five headwater streams in the Laurel Hill area in southwestern Pennsylvania were investigated from September 1983 through February 1986 to determine possible effects of acidic precipitation on water quality. Precipitation in the Laurel Hill area is among the most acidic in the Nation, with a mean volume-weighted pH of 4.06. Sulfate is the dominant acid-forming anion, averaging 3.6 milligrams per l
Authors
J. L. Barker, E. C. Witt
Large springs in the Valley and Ridge physiographic province of Pennsylvania
In the Valley and Ridge physiographic province of Pennsylvania, 137 springs have a single or median discharge value equal to or greater than 100 gallons per minute. Information for these large springs has been tabulated to summarize the data useful to the U.S. Geological Survey's Appalachian Valleys--Piedmont Regional Aquifer-System Analysis study. Among the springs measured or estimated to date (
Authors
D. A. Saad, D. J. Hippe
Geology of the Mount Aetna volcanic center, Chaffee and Gunnison Counties, Colorado
No abstract available.
Authors
Priestley Toulmin, Jane Marie Hammarstrom
Summary results of the Glens Falls CUSMAP project, New York, Vermont, and New Hampshire
No abstract available.
Authors
John F. Slack
Base-flow-frequency characteristics of selected Pennsylvania streams
Streamflow hydrographs of 309 streamflow stations in Pennsylvania were analyzed by using three computer-assisted empirical methods--local-minimum , fixed-interval, and sliding-interval--to separate the ground-water and surface-runoff components. The 2-, 5-, 10-, and 25-year base-flow-recurrence intervals were determined for each station. The 50- and 100-year recurrence intervals were determined fo
Authors
K. E. White, R. A. Sloto