Spatial and temporal statistical analysis of a ground-water level network, Broward County, Florida
E.D. Swain, R.S. Sonenshein
1994, Water-Resources Investigations Report 94-4076
The U.S. Geological Survey has developed a method to evaluate the spatial and temporal statistics of a continuous ground-water level recorder network in Broward County, Florida. Because the Broward County network is sparse for most spatial statistics, a technique has been developed to define polygons for each well that represent...
SPECtrum Processing Routines User's Manual Version 3 (program SPECPR)
Roger N. Clark
1993, Open-File Report 93-595
IntroductionThe SPECtrum Processing Routines (SPECPR) is a large-scale interactive program for general one-dimensional array processing and optimized for reflectance spectroscopy data and analysis. The program processes one-dimensional arrays up to 4852 data points and the operations include addition, subtraction, multiplication, division, trigonometric functions, logarithmic and exponential functions, and many more...
Hydrogeology and simulation of ground-water flow near the Lantana Landfill, Palm Beach County, Florida
G.M. Russell, E. J. Wexler
1993, Water-Resources Investigations Report 92-4107
The Lantana landfill in Palm Beach County has a surface that is 40 to 50 feet above original ground level and consists of about 250 acres of compacted garbage and trash. Parts of the landfill are below the water table. Surface-resistivity measurements and water-quality analyses indicate that leachate-enriched ground water...
Water resources data Maryland and Delaware, water year 1993, Volume 2: Ground-water data
M.J. Smigaj, R.W. Saffer, J.L. Tegeler
1993, Water Data Report MD-DE-93-2
No abstract available....
Water resources data Maryland and Delaware, water year 1993, Volume 1. Surface-water data
R.W. James, R.H. Simmons, B.F. Strain
1993, Water Data Report MD-DE-93-1
No abstract available....
Ground-water conditions in Utah, spring of 1993
D.M. Batty, D.V. Allen, J.D. Sory, K.M. Hanson, W.J. Thomas, M.R. Greene, M.R. Danner, L. R. Herbert, H.K. Hadley, S.J. Gerner, B.A. Slaugh, R.L. Swenson, J.H. Howells, H.K. Christiansen
1993, Cooperative Investigations Report 33
This is the thirtieth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, published cooperatively by the U.S. Geological Survey and the Utah Division of Water Resources, provide data to enable interested parties to keep abreast of changing ground-water conditions.This report, like the...
Use of mesocosm data to predict effects in aquatic ecosystems: Limits to interpretation: Chapter 16
Thomas W. La Point, James F. Fairchild
Robert L. Graney, James H. Kennedy, John H. Rodgers Jr., editor(s)
1993, Book chapter, Aquatic mesocosm studies in ecological risk assessment
Aquatic mesocosm studies are being used to refute a presumption of risk derived from laboratory toxicity tests conducted under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). Mesocosm studies incorporate many biological, chemical and physical characteristics of natural ecosystems. Hence, they serve as realistic surrogates of natural ecosystems and allow...
1993 Annual Report: San Francisco estuary regional monitoring program for trace substances
B. Thompson, Jessica Lacy, Dane Hardin, Tom Grovhaug, K. Taberski, Alan D. Jassby, James E. Cloern, J. Caffrey, B. Cole, David H. Schoellhamer
1993, Report
This first annual report of the San Francisco Estuary Regional Monitoring Program contains the results of monitoring measurements made in 1993. Measurements of conventional water quality parameters and trace contaminant concentrations were made at 16 stations throughout the Estuary three times during the year: the wet period (March), during declining...
Organic carbon sources and sinks in San Francisco Bay: variability induced by river flow
Alan D. Jassby, T.M. Powell, James E. Cloern
1993, Marine Ecology Progress Series (95) 39-54
Sources and sinks of organic carbon for San Francisco Bay (California, USA) were estimated for 1980. Sources for the southern reach were dominated by phytoplankton and benthic microalgal production. River loading of organic matter was an additional important factor in the...
Evidence for a late thermal event of unequilibrated enstatite chondrites: a Rb-Sr study of Qingzhen and Yamato 6901 (EH3) and Khairpur (EL6)
N. Torigoye, M. Shima
1993, Meteoritics (28) 515-527
The Rb-Sr whole rock and internal systematics of two EH3 chondrites, Qingzhen and Yamato 6901, and of one EL6 chondrite, Khairpur, were determined. Sulfides were separated using a stepwise dissolution technique. The mineral species in each fraction were estimated based on the chemical analyses of 12 major elements. The internal...
Digital Elevation Models
Water Resources Division, U.S. Geological Survey
1993, Data Users Guide 5
The Earth Science Information Center (ESIC) distributes digital cartographic/geographic data files produced by the U.S. Geological Survey (USGS) as part of the National Mapping Program. Digital cartographic data files may be grouped into four basic types. The first of these, called a Digital Line Graph (DLG), is the line map...
Water Resources Data, New Jersey, Water Year 1992, Volume 2. Ground-Water Data
W.R. Bauersfeld, W.D. Jones, C.E. Gurney
1993, Water Data Report NJ-92-2
Water Resources data for the 1992 water year for New Jersey consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground water. Volume 2 contains records of ground-water levels from 225 wells...
Water Resources Data, New Jersey, Water Year 1992, Volume 1. Surface-Water Data
W.R. Bauersfeld, E.W. Moshinsky, C.E. Gurney
1993, Water Data Report NJ-92-1
Water resources data for the 1992 water year for New Jersey consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground water. This volume of the report contains discharge records for 99...
The United States Geological Survey: A vision for the 21st century
Water Resources Division, U.S. Geological Survey
1993, Report
Leadership in Earth science for sustained global health, welfare, and prosperity. We envision a U.S. Geological Survey that is a global leader in relevant, innovative, and interdisciplinary Earth science. We shall conduct collaborative, impartial, multi-scale scientific investigations into the Earth's systems and conditions through a spectrum of basic to applied...
Environmental contaminants in bald eagle eggs—1980–84—and further interpretations of relationships to productivity and shell thickness
Stanley N. Wiemeyer, Christine M. Bunck, Charles J. Stafford
1993, Archives of Environmental Contamination and Toxicology (24) 213-227
Bald eagle (Haliaeetus leucocephalus) eggs were collected in 15 States in the United States in 1980–1984 and analyzed for organochlorine pesticides, polychlorinated biphenyls (PCBs), and mercury. Data were compared and combined with data from earlier studies to examine trends and refine relationships of contaminants to shell thickness and young production....
Efficiency and optimal allocation in the staggered entry design
W.A. Link
1993, Communications in Statistics - Theory and Methods (22) 485-503
The staggered entry design for survival analysis specifies that r left-truncated samples are to be used in estimation of a population survival function. The ith sample is taken at time Bi, from the subpopulation of individuals having survival time exceeding Bi. This paper investigates the performance of...
Use of satellite telemetry for study of a gyrfalcon in Greenland
S.S. Klugman, M.R. Fuller, P.W. Howey, M.A. Yates, J.J. Oar, J.M. Seegar, W.S. Seegar, G.M. Mattox, T.L. Maechtle
1993, Journal of Raptor Research (27) 75-76(abs)
Long-term research in Greenland has yielded 1 8 years of incidental sightings and 2 years of surveys and observations of gyrfalcons(Falco rusticolus) around Sondrestromfjord, Greenland. Gyrfalcons nest on cliffs along fjords and near rivers and lakes throughout our 2590 sq. km study area. Nestlings are present mid-June to...
Optimal allocation of point-count sampling effort
Richard J. Barker, John R. Sauer, William A. Link
1993, The Auk (110) 752-758
Both unlimited and fixed-radius point counts only provide indices to population size. Because longer count durations lead to counting a higher proportion of individuals at the point, proper design of these surveys must incorporate both count duration and sampling characteristics of population size. Using information about the relationship between proportion...
Down-regulation of muscarinic receptors and the m3 subtype in white-footed mice by dietary exposure to parathion
David A. Jett, E. F. Hill, J.C. Fernando, M.E. Eldefrawi, A.T. Eldefrawi
1993, Journal of Toxicology and Environmental Health (39) 395-415
The effect of ad libitum dietary exposure (as occurs in the field) to parathion for 14 d was investigated on the muscarinic acetylcholine receptor (mAChR) in brains and submaxillary glands of adults of a field species, the white-footed mouse Peromyscus leucopus. Immunoprecipitation using subtype selective antibodies revealed that the relative...
Turbidite systems: State of the art and future directions
W. R. Normark, H. Posamentier, E. Mutti
1993, Reviews of Geophysics (31) 91-116
The study of turbidite systems covering a wide range of physical scales has led to confus ion regarding the use of certain key terms and hence a breakdown in communication between workers involved in turbidite research. There are three fundamentally different scales and types of observations derived from the study...
Habitat suitability index model for brook trout in streams of the Southern Blue Ridge Province: Surrogate variables, model evaluation, and suggested improvements
C. J. Schmitt, A.D. Lemly, P. V. Winger
1993, Biological Report No. 18
Data from several sources were collated and analyzed by correlation, regression, and principal components analysis to define surrrogate variables for use in the brook trout (Salvelinus fontinalis) habitat suitability index (HSI) model, and to evaluate the applicability of the model for assessing habitat in high elevation streams of the southern...
Sampling bird communities in bottomland hardwood forests of the Mississippi Alluvial Valley: Number of points visited versus number of visits to a point
D.J. Twedt, W.P. Smith, R.J. Cooper, R.P. Ford, P.B. Hamel, D.A. Wiedenfeld
Winston Paul Smith, editor(s)
1993, Book chapter, Fourth meeting of the Southeast Management Working Group Partners in Flight
Within each of 4 forest stands on Delta Experimental Forest (DEF), 25 points were visited 5 to 7 times from 8 May to 21 May 1991, and 6 times from 30 May to 12 June 1992. During each visit to a point, all birds detected, visuallyor aurally, at any distance...
Species richness and relative abundance of breeding birds in forests of the Mississippi Alluvial Valley
C.O. Nelms, D.J. Twedt
Winston Paul Smith, editor(s)
1993, Book chapter, Fourth meeting of the Southeast Management Working Group Partners in Flight
In 1992, the Vicksburg Field Research Station of the National Wetlands Research Center initiated research on the ecology of migratory birds within forests of the Mississippi Alluvial Valley (MAV). The MAV was historically a nearly contiguous bottomland hardwood forest, however, only remnants remain. These remnants are fragmented and often influenced...
Survival rate estimation in the presence of tag loss using joint analysis of capture-recapture and resighting data
J.D. Nichols, J.E. Hines
J.-D. Lebreton, P.M. North, editor(s)
1993, Book chapter, Marked Individuals in the Study of Bird Population
Studies using resightings of marked birds typically make use of readily-observable tags that are not retained as well as metal legbands. We review methods for estimating survival rate with open capture-recapture / resighting models when tag loss is not negligible. All methods rely on data from double-banding studies, usually...
Population trends of quails in North America
K.E. Church, J.R. Sauer, Sam Droege
K.E. Church, T.V. Daley, editor(s)
1993, Book chapter, Quail III: National Quail Symposium
We used North American Breeding Bird Survey data (1966-91) to estimate distribution, relative abundance, and populatiori trends of quails. Population trends in grassland/shrub birds sympatric with northern bobwhite (Colinus virginianus) were also examined. Northern bobwhite and scaled quail (Callipepla squamata) populations have declined since 1966. Rates of decline...
