Alternative natural gas contract and pricing structures and incentives of the LNG industry
Emil D. Attanasi
1991, Natural Resources Forum (15) 190-201
Gas conversion to liquefied gas (LNG) and transport by LNG tankers is one option for meeting expanding gas consumption and for gas traded internationally. This paper examines the impact of the traditional gas contract provisions of indefinite pricing, market out price ceilings, and take‐or‐pay requirements on the profitability of LNG...
Change-in-ratio estimators for populations with more than two subclasses
Mark S. Udevitz, Kenneth H. Pollock
1991, Biometrics (47) 1531-1546
Change-in-ratio methods have been developed to estimate the size of populations with two or three population subclasses. Most of these methods require the often unreasonable assumption of equal sampling probabilities for individuals in all subclasses. This paper presents new models based on the weaker assumption that ratios of sampling probabilities...
A comparison of aerial and boat-based surveys for marbled murrelets in southeast Alaska, July 23-28, 1991
John F. Piatt, Bruce Conant, Chris Iverson
1991, Report
Aerial and boat-based surveys for Marbled Murrelets (Brachyramphus marmoratus) were conducted simultaneously over short transect distances (ca. 2 km) in three different areas of the Alexander Archipelago to assess the accuracy and variability of aerial counts compared to boat-based counts. Additional aerial surveys were conducted over a wider geographic area...
Water use data for public water suppliers and self supplied industry in Utah: 1988, 1989
1991, Utah Division of Water Rights Water-Use Report 8
This report is a summary of data collected under the Utah Water Use Program, a cooperative program between the Utah Division of Water Rights and the United States Geological Survey (USGS)....
Geology-based method of assessing sensitivity of streams to acidic deposition in Charles and Anne Arundel Counties, Maryland
Karen C. Rice, Owen P. Bricker
1991, Report
The report describes the results of a study to assess the sensitivity of streams to acidic deposition in Charles and Anne Arundel Counties, Maryland using a geology-based method. Water samples were collected from streams in July and August 1988 when streams were at base-flow conditions. Eighteen water samples collected from...
Ground-water conditions in Utah, spring of 1991
L. R. Herbert, Joseph S. Gates, J.D. Sory, Kim A. Kariya, James P. Eads, G. J. Smith, B.K. Thomas, Lynette E. Brooks, R. B. Garrett, W.R. Overman, R.L. Swenson, D. C. Emett, M.M. Drumiler
1991, Cooperative Investigations Report 31
This is the twenty-eighth 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...
Hydrologic reconnaissance of the Sevier Lake area, west-central Utah
Dale E. Wilberg
1991, Technical Publication 96
The hydrologic system of the Sevier Lake area, at the terminus of the Sevier Lake drainage basin in west-central Utah, was studied during 1987-88 to determine baseline hydrologic conditions prior to anticipated development. Sevier Lake was reestablished during 1983-87 on the normally dry playa as a result of record volumes...
Ground-water resources and simulated effects of withdrawals in the Bountiful area, Utah
David W. Clark
1991, Technical Publication 95
Ground-water resources in the Bountiful area, Utah, were studied to document changes in ground-water conditions and to simulate the effects of increased ground-water withdrawals and changes in recharge. The aquifer system is in basin-fill deposits and is primarily a confined system with unconfined parts along the mountain front.Recharge to the...
Hydrology of Heber and Round Valleys, Wasatch County, Utah, with emphasis on simulation of ground-water flow in Heber Valley
D. Michael Roark, Walter F. Holmes, Heidi K. Shlosar
1991, Technical Publication 101
An investigation of the hydrologic system in Heber and Round Valleys was conducted to improve understanding of the surface-water and ground-water hydrology and the effects caused by changes in recharge. Ground water is present in consolidated rocks and in unconsolidated valley-fill deposits, but the principal ground-water reservoir is in the...
Colorado quartz: Occurrence and discovery
D. E. Kile, P.J. Modreski, D.L. Kile
1991, Rocks & Minerals (66) 374-406
No abstract available. ...
Effects of trace metals on aquatic benthos
N. Luoma, J.L. Carter
M.C. Newman, A. W. McIntosh, editor(s)
1991, Conference Paper, Metal ecotoxicology : concepts & applications
No abstract....
Hydrologic monitoring for effects of geothermal and ground-water development, Long Valley caldera, California
C. D. Farrar, D. L. Lyster
1991, Conference Paper, Symposium on Subsurface Injection of Geothermal Fluids, Santa Rosa, California
Freshwater molluscs as indicators of bioavailability and toxicity of metals in surface-water systems
John F. Elder, Jerilyn J. Collins
George W. Ware, editor(s)
1991, Book chapter, Reviews of Environmental Contamination and Toxicology
During the past several decades, studies from a variety of locations have demonstrated widespread occurrence of metals in surface waters at concentrations significantly higher than background levels. Elevated concentrations are not limited to certain water types or polluted areas; they appear in all types of systems and in all geographic...
Low-flow sediment transport in the Colorado River
John R. Gray, Robert H. Webb, David W. Hyndman
1991, Conference Paper, Proceedings of the Fifth Federal Interagency Sedimentation Conference
In support of beach-stability research, bedload and suspended sediment were measured during a steady flow of 5,880 ft3/s and receding flows from 12,100 to 5,660 ft3/s in the Colorado River above National Canyon, near Supai, Arizona, October 7-12, 1989. During steady flows, 75 percent of the mean total-sediment discharge of...
Ground-water resources of the south metropolitan Atlanta region, Georgia
John S. Clarke, Michael F. Peck
1991, Georgia Geologic Survey Information Circular 88
Ground-water resources of the nine county south metropolitan Atlanta region were evaluated in response to an increased demand for water supplies and concern that existing surface water supplies may not be able to meet future supply demands. Previous investigations have suggested that crystalline rock in the study area has low...
Selenium mobility and distribution in irrigated and nonirrigated alluvial soils
John L. Fio, Roger Fujii, S. J. Deverel
1991, Soil Science Society of America Journal (55) 1313-1320
Dissolution and leaching of soil salts by irrigation water is a primary source of Se to shallow groundwater in the western San Joaquin Valley, California. In this study, the mobility and distribution of selenite and selenate in soils with different irrigation and drainage histories was evaluated using sorption experiments and...
Construction aggregates
V.V. Tepordei
1991, Mining Engineering (43) 597-598
Strontium
J.A. Ober
1991, Mining Engineering (43) 613-614
Acoustic measures of the abundance and size of pelagic planktivores in Lake Michigan
Stephen B. Brandt, Doran M. Mason, E. Vincent Patrick, Ray L. Argyle, L. Wells, Philip A. Unger, Donald J. Stewart
1991, Canadian Journal of Fisheries and Aquatic Sciences (48) 894-908
Based on acoustic data taken at night and vertically stratified by bottom depth (3–110 m only), the total number (± 95% Cl) of pelagic fishes in Lake Michigan was 43.4 ± 10.1 x 109 or 226.0 ± 55.2 kt in spring (mean density 0.7–3.8 fish·m-2 or 1.6–12.8 ga·m-2) and 115.8...
Amino acid dating of fossil mollusks
D.R. Muhs
J. N. Rosholt, editor(s)
1991, Book chapter, Quaternary nonglacial geology; Conterminous U.S.; The Geology of North America, v. K-2
Water Resources Data, New Jersey, Water Year 1990. Volume 2. Ground-Water Data
W.R. Bauersfeld, W.D. Jones, E.A. Pustay
1991, Water Data Report NJ-90-2
Water Resources data for the 1990 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 ground water levels for...
Elevations and distances in the United States
Water Resources Division, U.S. Geological Survey
1991, Report
The information in this booklet was compiled to answer inquiries received by the U.S. Geological Survey from students; teachers; writers; editors; publishers of encyclopedias, almanacs, and other reference books; and people in many other fields of work. The elevations of features and distances between points in the United States were...
Earthquakes
Louis C. Pakiser
1991, Report
One of the most frightening and destructive phenomena of nature that man experiences is a severe earthquake and its terrible aftereffects. Since long before man existed, probably for more than 4 billion years, the forces within the Earth that produce earthquakes have played an active role in shaping the Earth's...
Distribution and abundance of caddisflies (Trichoptera) in the St. Clair-Detroit River system
Bruce M. Davis, Patrick L. Hudson, Brian J. Armitage
1991, Journal of Great Lakes Research (17) 522-535
Abundance and distribution patterns of the caddisflies of the St. Clair-Detroit River system were investigated in 1983–84. Collections of both adults and larvae yielded 70 species representing 34 genera and 12 families. Leptoceridae and Hydroptilidae were the most common families and Ceraclea the most common genus in number of species. This study...
Lead exposure in Canada geese of the eastern prairie population
S. DeStefano, C. J. Brand, D. H. Rusch, Daniel L. Finley, Murray M. Gillespie
1991, Wildlife Society Bulletin (19) 23-32
We monitored lead exposure in Eastern Prairie Population Canada geese during summer-winter, 1986-1987 and 1987-1988 at 5 areas. Blood lead concentrations in geese trapped during summer at Cape Churchill Manitoba were below levels indicative of recent lead exposure (0.18 ppm). Geese exposed to lead (≥0.18 ppm blood lead) increased to...
