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Not all publications have extents, not all extents are completely accurate
Sedimentation in Lake Onalaska, Navigation Pool 7, Upper Mississippi River, since impoundment
C. E. Korschgen, G. A. Jackson, L.F. Muessig, D. Southworth
1987, Journal of the American Water Resources Association (23) 221-226
Sediment accumulation was evaluated in Lake Onalaska a 2800-ha backwater impoundment on the Upper Mississippi River. Computer programs were used to process fathometric charts and generate an extensive data set on water depth for the lake. Comparison of 1983 survey data with pre-impoundment (before 1937) data showed that Lake Onalaska...
Prey fish dynamics and salmonine predator growth in Lake Ontario, 1978-84
Robert O’Gorman, Roger A. Bergstedt, Thomas H. Eckert
1987, Canadian Journal of Fisheries and Aquatic Sciences (44) 390-403
The size of hatchery-reared brown trout (Salmo trutta) and coho salmon (Oncorhynchus kisutch), 1 yr after release in Lake Ontario, declined when the stocking of salmonines was increased between 1978 and 1984. The principal prey species, alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax), failed to show the expected, predator-induced downturn...
Using a spatial and tabular database to generate statistics from terrain and spectral data for soil surveys
E.A. Horvath, E. A. Fosnight, A. A. Klingebiel, D. G. Moore, J.E. Stone
W.U. Reybold, G.W. Petersen, editor(s)
1987, Book chapter, Soil survey techniques, SSSA Special Publication 20
A methodology has been developed to create a spatial database by referencing digital elevation, Landsat multispectral scanner data, and digitized soil premap delineations of a number of adjacent 7.5-min quadrangle areas to a 30-m Universal Transverse Mercator projection. Slope and aspect transformations are calculated from elevation data and grouped according...
Velocity control as a tool for optimal plume containment in the Equus Beds aquifer, Kansas
M. Heidari, J. Sadeghipour, O. Drici
1987, Water Resources Bulletin (23) 325-335
A ground-water-management model was developed to investigate the best management options for the containment of an oil-field-brine plume in the Equus Beds aquifer in south-central Kansas. The main purpose of the management model was to find the optimal locations and minimum rates of pumpage of a set of plume-interception wells,...
Denali image map
Douglas R. Binnie, Alden P. Colvocoresses
1987, Photogrammetric Engineering and Remote Sensing (53) 307-310
The Denali National Park and Preserve 1:250,000-scale image map has been prepared and published as part of the US Geological Survey's (USGS) continuing research to improve image mapping techniques. Nine multispectral scanner (MSS) images were geometrically corrected, digitally mosaicked, and enhanced at the National Mapping Division's (NMD) EROS Data Center...
Relationship between peat geochemistry and depositional environments, Cranberry Island, Maine
R. Raymond Jr., C. C. Cameron, A.D. Cohen
1987, International Journal of Coal Geology (8) 175-187
The Heath, Great Cranberry Island, Maine, offers a unique locality for studying lateral and vertical relationships between radically different peat types within 1 km2. The majority of The Heath is a Sphagnum moss-dominated raised bog. Surrounding the raised bog is a swamp/marsh complex...
The chemical, physical and structural properties of estuarine ice in Great Bay, New Hampshire
D.A. Meese, A. J. Gow, P.A. Mayewski, W. Ficklin, T.C. Loder
1987, Estuarine, Coastal and Shelf Science (24) 833-840
The purpose of this study was to provide general information on the chemical, physical and structural properties of estuarine ice and show how it compares with sea ice found at higher latitudes in order to determine whether the ice in Great Bay can be used as an analog in the...
Acute bioassays and hazard evaluation of representative contaminants detected in Great Lakes fish
Dora R. May Passino, Stephen B. Smith
1987, Environmental Toxicology and Chemistry (6) 901-907
We have provided a hazard ranking for 19 classes of compounds representing many of the nearly 500 organic compounds identified by gas chromatography-mass spectrometry in lake trout (Salvelinus namaycush) and walleye (Stizostedion vitreum vitreum) from the Great Lakes and Lake St. Clair. We initially made a provisional hazard ranking based...
Depth-averaging effects on hydraulic head for media with stochastic hydraulic conductivity
R.L. Naff, A. V. Vecchia
1987, Water Resources Research (23) 561-570
Hydraulic conductivity of a porous medium frequently is considered to be a single realization of a three-dimensional spatial stochastic process. The most common observations of flow in porous media are hydraulic-head measurements obtained from wells which are screened over extensive sections of the medium. These measurements represent, approximately, a one-dimensional...
Resurrection Peninsula and Knight Island ophiolites and recent faulting on Montague Island, southern Alaska
Steven W. Nelson, Marti L. Miller, Julie A. Dumoulin
1987, Book chapter, Cordilleran section of the Geological Society of America: Centennial Field Guide volume 1
The Resurrection Peninsula forms the east side of Resurrection Bay (Fig. 1). The city of Seward is located at the head of the bay and can be reached from Anchorage by highway (127 mi;204 km). Relief ranges from 1,434 ft (437 m) at the southern end of the peninsula...
Use of slope, aspect, and elevation maps derived from digital elevation model data in making soil surveys
A. A. Klingebiel, E. H. Horvath, D. G. Moore, W.U. Reybold
1987, Book chapter, Soil survey techniques, SSSA Special Publication 20
Maps showing different classes of slope, aspect, and elevation were developed from U.S. Geological Survey digital elevation model data. The classes were displayed on clear Mylar at 1:24 000-scale and registered with topographic maps and orthophotos. The maps were used with aerial photographs, topographic maps, and other resource data to...
The effects of early diagenesis on the chemical and stable carbon isotopic composition of wood
E.C. Spiker, Patrick G. Hatcher
1987, Geochimica et Cosmochimica Acta (51) 1385-1391
Studies of modern and ancient buried wood show that there is a linear correlation between carbohydrate content and the stable carbon isotope composition as carbohydrates are preferentially degraded during early diagenesis. As the carbohydrate content decreases, the δ13C">δ13C value of the degraded wood decreases 1 to...
Common Murre (Uria aalge) attendance patterns at Cape St. Mary's, Newfoundland
John F. Piatt, Ruth L. McLagan
1987, Canadian Journal of Zoology (65) 1530-1534
Attendance patterns of common murres (Uria aalge) at Cape St. Mary's, Newfoundland, were observed during hatching to post-fledging periods of 1980 to 1984. Six study plots on breeding ledges (ca. 450 birds total) and a "club" on the water were monitored for seasonal fluctuations in numbers attending. Attendance on ledges...
A review of light-scattering techniques for the study of colloids in natural waters
T.F. Rees
1987, Journal of Contaminant Hydrology (1) 425-439
In order to understand the movement of colloidal materials in natural waters, we first need to have a means of quantifying their physical characteristics. This paper reviews three techniques which utilize light-scattering phenomena to measure the translational diffusion coefficient, the rotational...
Dehydration of seabird prey during transport to the colony: Effects on wet weight energy densities
W.A. Montevecchi, John F. Piatt
1987, Canadian Journal of Zoology (65) 2822-2824
We present evidence to indicate that dehydration of prey transported by seabirds from capture sites at sea to chicks at colonies inflates estimates of wet weight energy densities. These findings and a comparison of wet and dry weight energy densities reported in the literature emphasize the importance of (i) accurate...
Geothermometry of Kilauea Iki lava lake, Hawaii
Rosalind Tuthill Helz, C.R. Thornber
1987, Bulletin of Volcanology (49) 651-668
Data on the variation of temperature with time and in space are essential to a complete understanding of the crystallization history of basaltic magma in Kilauea Iki lava lake. Methods used to determine temperatures in the lake have included direct, downhole thermocouple measurements and Fe-Ti oxide geothermometry. In addition, the...