Water balance models in one-month-ahead streamflow forecasting
William M. Alley
1985, Water Resources Research (21) 597-606
Techniques are tested that incorporate information from water balance models in making 1-month-ahead streamflow forecasts in New Jersey. The results are compared to those based on simple autoregressive time series models. The relative performance of the models is dependent on the month of the year in question. The water balance...
Wildlife health implications of sewage disposal in wetlands
M. Friend
P.J. Godfrey, E.R. Kaynor, S. Pelczarski, editor(s)
1985, Book chapter, Ecological Considerations in Wetlands Treatment of Municipal Wastewaters
Wildlife health concerns associated with disposal of sewage effluent in wetlands are of three primary types: (1) introduction of pathogens, (2) introduction of pollutants that adversely impact on host body defense mechanisms, and (3) changes in the physical and chemical properties of wetlands that favor the development and maintenance of...
Development of a culture medium for determination of sorbitol utilization among strains of Yersinia ruckeri
R. C. Cipriano, S. W. Pyle
1985, Microbios Letters (28) 79-82
A GC-system for the analysis of residual geothermal gases
D.S. Sheppard, A.H. Truesdell
1985, Chromatographia (20) 681-682
The gases evolved from geothermal fields, after condensation of H2O, CO2, H2S and NH3 in caustic solution, contain He, H2, Ar, O2, N2, CH4 and higher hydrocarbons. The analysis for the major components in these residual gas mixtures can be achieved by use of two simple gas chromatographs in parallel,...
The effects of grazers and light penetration on the survival of transplants of Vallisneria americana Michs in the tidal Potomac River, Maryland
Virginia Carter, Nancy B. Rybicki
1985, Aquatic Botany (23) 197-213
Poor light penetration and grazing are among the factors potentially responsible for the lack of submersed aquatic macrophytes in the tidal Potomac River. Between 1980 and 1983, plugs, springs and tubers of Vallisneria americana Michx were transplanted from the oligohaline Potomac Estuary to six sites in the freshwater tidal Potomac River. Transplants...
Foreshocks and time-dependent earthquake hazard assessment in southern California
Lucile M. Jones
1985, Bulletin of the Seismological Society of America (75) 1667-1679
The probability that an earthquake in southern California (M ≧ 3.0) will be followed by an earthquake of larger magnitude within 5 days and 10 km (i.e., will be a foreshock) is 6 ± 0.5 per cent (1 S.D.), and is not significantly dependent on the magnitude of the possible...
Estimating neighborhood variability with a binary comparison matrix.
D.L. Murphy
1985, Photogrammetric Engineering and Remote Sensing (51) 667-674
A technique which utilizes a binary comparison matrix has been developed to implement a neighborhood function for a raster format data base. The technique assigns an index value to the center pixel of 3- by 3-pixel neighborhoods. The binary comparison matrix provides additional information not found in two other neighborhood...
Analysis of the low-flow characteristics of streams in Louisiana
Fred N. Lee
1985, Water Resources Technical Report of the Louisiana Department of Transportation and Development, Office of Public Works 35
The U.S. Geological Survey, in cooperation with the Louisiana Department of Transportation and Development, Office of Public Works, used geologic maps, soils maps, precipitation data, and low-flow data to define four hydrographic regions in Louisiana having distinct low-flow characteristics. Equations were derived, using regression analyses, to estimate the 7Q2, 7Q10,...
Vent evolution and lag breccia formation during the Cape Riva eruption of Santorini, Greece
T. H. Druitt
1985, Journal of Geology (93) 439-454
The 18,500 yr. b.p. Cape Riva (CR) eruption of Santorini vented several km3 or more of magma, generating four eruption units: a basal Plinian fall deposit (CR-A) and three pyroclastic flow deposits (CR-B to CR-D upwards). CR-B and CR-D are welded ignimbrites; CR-C consists predominantly of up to 25 m...
Limnology of nine small lakes, Matanuska-Susitna Borough, Alaska, and the survival and growth rates of rainbow trout
P. F. Woods
1985, Water-Resources Investigations Report 85-4292
The survival and growth rates of rainbow trout (Salmo gairdnieri) were concurrently measured with selected limnological characteristics in nine small (surface area < 25 sq hectometers) lakes in the Matanuska-Susitna Borough. The project goal was to develop empirical models for predicting rainbow trout growth rates from the following variables: total...
An interview with Karl Steinbrugge
H. Spall
1985, Earthquake Information Bulletin (USGS) (17) 134-147
For thirty years the name of Karl V. Steinbrugge has been synonymous with the Insurance Services Office in San Francisco. There he was in charge of their earthquake engineering and research activities for the United States, and his work included detailed engineering investigations of the probable earthquake damage to structures as...
Demonstration of two pulses of Paleogene deformation in the Andes of Peru
D. C. Noble, M. Sebrier, F. Megard, E.H. McKee
1985, Earth and Planetary Science Letters (73) 345-349
New radiometric ages of about 25 m.y. on volcanic materials in a marine intercalation within clastic continental strata of the Upper Moquegua Formation near Caraveli, southern Peru, together with an age of25.3 ± 0.4 m.y obtained by Tosdal et al. from a...
Simulation of steady-state flow in three-dimensional fracture networks using the boundary-element method
A.M. Shapiro, J. Andersson
1985, Advances in Water Resources (8) 106-110
An efficient method for simulating steady-state flow in three-dimensional fracture networks is formulated with the use of the boundary-element method. The host rock is considered to be impervious, and the fractures can be of any orientation and areal extent. The fractures are treated as surfaces where fluid movement is essentially...
The 1983 hydraulic jump in Crystal Rapid: Implications for river- running and geomorphic evolution in the Grand Canyon
S. W. Kieffer
1985, Journal of Geology (93) 385-406
At Crystal Creek, a debris fan was emplaced in 1966, constricting the channel of the Colorado River to about 0.25 of its upstream width between 1967 and 1983, forming a major rapid. The hydraulics of Crystal Creek rapid are described, and an analysis is presented to support the hypothesis that...
Assessment of long-term salinity changes in an irrigated stream-aquifer system
Leonard F. Konikow, Mark Person
1985, Water Resources Research (21) 1611-1624
Changes in salinity in groundwater and surface water in the Arkansas River valley of southeastern Colorado are primarily related to irrigation practices. A solute transport model was applied to an 11-mile reach of the valley to compute salinity changes in response to spatially and temporally varying stresses. The model was...
Upper Wisconsinan submarine end moraines off Cape Ann, Massachusetts
R. N. Oldale
1985, Quaternary Research (24) 187-196
Seismic profiles across the southwest end of Jeffreys Ledge, a bathymetric high north of Cape Ann, Massachusetts, reveal two end moraines. The moraines overlie upper Wisconsinan glacialmarine silty clay and are composed mostly of subaqueous ice-contact deposits and outwash. They were formed below sea level in water depths of as...
Geochemistry of groundwater in Cretaceous sediments of the southeastern coastal plain of eastern Mississippi and western Alabama
Roger W. Lee
1985, Water Resources Research (21) 1545-1556
Geochemical samples of waters along two hydrologic flow paths in four Upper Cretaceous aquifers of northeastern Mississippi and western Alabama indicate similar geochemical evolution of their respective waters. The waters of the Coker, Gordo, and Eutaw-McShan aquifers, noncalcareous sands, increase downgradient in dissolved solids and pH, and are dominated by sodium...
Geophysical techniques for reconnaissance investigations of soils and surficial deposits in mountainous terrain
C.G. Olson, J.A. Doolittle
1985, Soil Science Society of America Journal (49) 1490-1498
Two techniques were assessed for their capabilities in reconnaissance studies of soil characteristics: depth to the water table and depth to bedrock beneath surficial deposits in mountainous terrain. Ground-penetrating radar had the best near-surface resolution in the upper 2 m of the profile and provided continuous interpretable imagery of soil...
Migration of wood-preserving chemicals in contaminated groundwater in a sand aquifer at Pensacola, Florida
D.F. Goerlitz, D.E. Troutman, E.M. Godsy, B.J. Franks
1985, Environmental Science & Technology (19) 955-961
Operation of a wood-preserving facility for nearly 80 years at Pensacola, FL, contaminated the near-surface groundwater with creosote and pentachlorophenol. The major source of aquifer contamination was unlined surface impoundments that were in direct hydraulic contact with the groundwater. Episodes of overtopping the impoundments and overland flow of treatment liquor...
TSX-PLUS MULTI-TASKING UPGRADE FOR THE NICOLET L-11 POWDER DIFFRACTION SYSTEM.
J. Fitzpatrick, David L. Queen
1985, Conference Paper, Advances in X-Ray Analysis
In August of 1982, a single-user, dual-translator, automated powder diffraction system was purchased by the Denver Research Institute for use on project work in the Chemical and Materials Sciences Division. Within a short period of time, the system had already become saturated with users. Scheduling conflicts arose. In view of...
Adsorption and desorption of hexavalent chromium in an alluvial aquifer near Telluride, Colorado
Kenneth G. Stollenwerk, D.B. Grove
1985, Journal of Environmental Quality (14) 150-155
A laboratory investigation of reactions between hexavalent chromium [Cr(VI)] and alluvium was conducted to evaluate reactions of Cr(VI) contaminating an alluvial aquifer near Telluride, CO and to determine the mechanisms responsible for these reactions. Uncontaminated alluvium and groundwater (spiked with CrO42−) from the study site were used...
Scientific knowledge and modern prospecting
G. J. Neuerburg
1985, Mineralium Deposita (20) 30-32
Modern prospecting is the systematic search for specified and generally ill-exposed components of the Earth's crust known as ore. This prospecting depends entirely on reliable, or scientific knowledge for guidance and for recognition of the search objects. Improvement in prospecting results from additions and refinements to scientific knowledge. Scientific knowledge...
Source pulse enhancement by deconvolution of an empirical Green's function
Charles S. Mueller
1985, Geophysical Research Letters (12) 33-36
Observations of the earthquake source-time function are enhanced if path, recording-site, and instrument complexities can be removed from seismograms. Assuming that a small earthquake has a simple source, its seismogram can be treated as an empirical Green's function and deconvolved from the seismogram of a larger...
TRENDS IN BOREHOLE GEOPHYSICS FOR MINERAL EXPLORATION: ASSAYING AND REMOTE DETECTION.
Jeffrey J. Daniels
1985, Conference Paper, Preprint - Society of Mining Engineers of AIME
Several borehole geophysical techniques have been developed in recent years. Assaying technique development has been concentrated on nuclear methods, with some progress being made on using electrical and magnetic properties for mineral identification. Adaptation of conventional surface geophysical techniques to the borehole for locating near-misses of mineralized zones has led...
NUMERICAL MODELING OF FINE SEDIMENT PHYSICAL PROCESSES.
David H. Schoellhamer
1985, Conference Paper
Fine sediment in channels, rivers, estuaries, and coastal waters undergo several physical processes including flocculation, floc disruption, deposition, bed consolidation, and resuspension. This paper presents a conceptual model and reviews mathematical models of these physical processes. Several general fine sediment models that simulate some of these processes are reviewed. These...
