Plastic enclosures and containers for evaluating the efficacy and safety of pesticides in aquatic environments
C.R. Walker, R.M. Burress, P.A. Gilderhus
1982, Special Technical Publication 752
Abstract not submitted to date...
Changes in vegetation structure in seeded nesting cover in the prairie pothole region
K.F. Higgins, W.T. Barker
1982, Special Scientific Report - Wildlife 242
A sample of 365 stands of seeded nesting cover (mixtures of cool-season grasses and legumes) was studied in the glaciated prairie pothole region during 1977-79. Measurements of species composition, canopy cover, plant height, and visual obstruction values differed with stand age but only in a general way when results from...
Maps of distribution and abundance of selected species of birds on uncultivated native upland grasslands and shrubsteppe in the Northern Great Plains
H.A. Kantrud
1982, FWS/OBS 82/31
No abstract available....
Beatty, Nevada: A section in U.S. Geological Survey research in radioactive waste disposal - Fiscal year 1979 (Circular 847)
William D. Nichols
Robert Schneider, E.H. Roseboom, J.B. Robertson, P. R. Stevens, editor(s)
1982, Report, U.S. Geological Survey research in radioactive waste disposal - Fiscal year 1979 (Circular 847)
A commercial low-level radioactive waste disposal site has been operating near Beatty, Nevada, about 150 km northwest of Las Vegas, since 1962. The 32-ha site is situated in a desolate region of the Amargosa River Valley, sometimes referred to as the Amargosa Desert. Average annual precipitation is only about 114...
Introduction; seismology and earthquake engineering in Mexico and Central and South America
A. F. Espinosa
1982, Earthquake Information Bulletin (USGS) (14) 4-6
Electric fences to reduce mammalian predation on waterfowl nests
J. T. Lokemoen, Harold A. Doty, D.E. Sharp, J.E. Neaville
1982, Wildlife Society Bulletin (10) 318-323
We evaluated electric fences as predator barriers to reduce high losses of waterfowl nests to mammalian predation at Waterfowl Production Areas (WPAs). The work was done in 1978-81 on 3 paired sites in central North Dakota and western Minnesota. Resident mammalian predators were trapped from inside the exclosures. All 3...
Intraslope basins in Northwest Gulf of Mexico; a key to ancient submarine canyons and fans
A.H. Bouma
1982, Book chapter, M 34: Studies in Continental Margin Geology
The hummocky, diapirically deformed Texas-Louisiana continental slope includes three major types of intraslope basins: blocked-canyon intraslope basin, interdomal basin, and collapse basin. Major sand bodies present in the blocked-canyon intraslope basins are used to determine the sedimentary history of the Tertiary and Quaternary of this area. During relative lowering of...
A note on the Goodman Jack
H.S. Swolfs, J.D. Kibler
1982, Rock Mechanics Felsmechanik Mecanique des Roches (15) 57-66
A Note on the Goodman Jack. Reconnaissance experiments, performed to evaluate the practical utility of the hard-rock variety of the Goodman Jack 1, reveal that the Hustrulid-T* correction adequately reconciles the discrepancy between the measured and true deformation modulus of the rock mass in the range of 30 to50 gigapascals....
Comparison of estimators of standard deviation for hydrologic time series
Gary D. Tasker, Edward J. Gilroy
1982, Water Resources Research (18) 1503-1508
Unbiasing factors as a function of serial correlation, ρ, and sample size, n for the sample standard deviation of a lag one autoregressive model were generated by random number simulation. Monte Carlo experiments were used to compare the performance of several alternative methods for estimating the standard deviation σ of a lag one...
Gravity evidence for a shallow intrusion under Medicine Lake volcano, California
Carol A. Finn, D.L. Williams
1982, Geology (10) 503-507
A positive gravity anomaly is associated with Medicine Lake volcano, California. Trials with different Bouguer reduction densities indicate that this positive anomaly cannot be explained by an inappropriate choice of Bouguer reduction density but must be caused by a subvolcanic body. After separating...
Determination of polar organic solutes in oil-shale retort water
J.A. Leenheer, T.I. Noyes, H. A. Stuber
1982, Environmental Science & Technology (16) 714-723
No abstract available....
Ultrasonic borehole televiewer investigation of oceanic crustal layer 2A, Costa Rice Rift
Mark D. Zoback, R.N. Anderson
1982, Nature (295) 375-379
In situ lithostratigraphy and the distribution of fracture and void zones in oceanic layer 2A were examined with an ultrasonic borehole televiewer at IPOD sites 501 and 504B on the south flank of the Costa Rice Rift. These records indicate a decrease in the size of basalt pillows with depth...
Space platform albedo measurements as indicators of change in arid lands
C.J. Robinove
1982, Advances in Space Research (2) 31-35
The change in albedo of arid lands is an indicator of changes in their condition and quality, including density of vegetative cover, erosion, deposition, surficial soil moisture, and man-made change. In general, darkening of an arid land surface indicates an increase in land quality while brightening indicates a decrease in...
Stream-grade variation and riparian-forest ecology along Passage Creek, Virginia
Cliff R. Hupp
1982, Bulletin of the Torrey Botanical Club (109) 488-499
Passage Creek, in northwestern Virginia, flows on relatively nonresistant shales, then cuts through a gorge underlain by resistant sandstone In the gorge, the stream gradient steepens, the size of bed material increases, a braided channel forms, and riparian-forest composition and growth form changes relative to areas outside the gorge Effects...
Sample design for estimating change in land use and land cover ( Pennsylvania).
G.H. Rosenfield
1982, Photogrammetric Engineering and Remote Sensing (48) 793-801
The methodology of sample design which is applied to estimating change in land use and land cover is general and extendable to determination of change in any type of thematic mapping that is time variant. Land-use maps of the State of Pennsylvania at a scale of 1:250,000 were compiled circa...
Genetic implications of minor-element and Sr-isotope geochemistry of alkaline rock complexes in the Wet Mountains area, Fremont and Custer counties, Colorado
T.J. Armbrustmacher, C. E. Hedge
1982, Contributions to Mineralogy and Petrology (79) 424-435
Concentrations of Rb, Sr, and REE (rare earth elements), and Sr-isotopic ratios in rocks of the Cambrian alkaline complexes in the Wet Mountains area, Colorado, show that rocks formed as end-products of a variety of magmas generated from different source materials. The complexes generally contain a bimodal suite of cumulus...
Bank stability and channel width adjustment, East Fork River, Wyoming
E.D. Andrews
1982, Water Resources Research (18) 1184-1192
Frequent surveys of eight cross sections located in self-formed reaches of the East Fork River, Wyoming, during the 1974 snowmelt flood showed a close relation between channel morphology and scour and fill. Those cross sections narrower than the mean reach width filled at discharges less than bankfull and scoured at...
Oscillation of continental shelf sediments caused by waves
J. N. Suhayda, J. M. Coleman, Thomas Whelan, L. E. Garrison
Kent A. Fanning, Frank T. Manheim, editor(s)
1982, Book chapter, The dynamic environment of the ocean floor
Digital observations on the use of satellite remote sensing imagery with regard to Chinese alligator habitat
M. E. Watanabe, Alta S. Walker, H. Churchien
1982, Ziran Zazhi (5) 852-854
No abstract available....
Evaluation of AMOEBA: a spectral-spatial classification method
Susan K. Jenson, Thomas R. Loveland, J. Bryant
1982, Journal of Applied Photographic Engineering (8) 159-162
Muitispectral remotely sensed images have been treated as arbitrary multivariate spectral data for purposes of clustering and classifying. However, the spatial properties of image data can also be exploited. AMOEBA is a clustering and classification method that is based on a spatially derived model for image data. In an evaluation...
Volcanoes
Robert I. Tilling
1982, Report
Volcanoes destroy and volcanoes create. The catastrophic eruption of Mount St. Helens on May 18, 1980, made clear the awesome destructive power of a volcano. Yet, over a time span longer than human memory and record, volcanoes have played a key role in forming and modifying the planet upon which...
Earthquakes, September-October 1981
W. J. Person
1982, Earthquake Information Bulletin (USGS) (14) 67-70
There were three major earthquakes (7.0-7.9) during this reporting period. The first and largest was a magnitude 7.7 on September 1 in the Samoa Islands region in the South Pacific. A magnitude 7.2 occurred on October 16 off the coast of central Chile. The third, on October 25 in Michoacan,...
Engineering aspects of seismological studies in Peru
L. Ocola
1982, Earthquake Information Bulletin (USGS) (14) 33-38
Large and small earthquakes occur frequently in Peru. Official institutions in charge of the study of seismological and geophysical aspects of such large natural events have a responsibility to provide engineers, planners, and government officials with basic data to implement safety measures to minimize the destructive impact of great earthquakes. The...
Population modeling for furbearer management
Douglas H. Johnson
G.C. Sanderson, editor(s)
1982, Book chapter, Midwest Furbearer Management. N. Central Sec., Central Mountains and Plains Sec., and KS.
The management of furbearers has become increasingly complex as greater demands are placed on their populations. Correspondingly, needs for information to use in management have increased. Inadequate information leads the manager to err on the conservative side; unless the size of the 'harvestable surplus' is known, the population cannot be...
Earthquakes, November-December 1981
W. J. Person
1982, Earthquake Information Bulletin (USGS) (14) 115-118
The last 2 months of the year were somewhat active, seismically speaking, including three major earthquakes (7.0-7.9) during the month of December. The first of the major quakes was in the Aegean Sea on December 19, and the other two were in the South Pacific in the Kermadee Islands on...