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701 - 725 of 881 Items << < 24 25 26 27 28 29 30 31 32 33 > >>
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The Gorda Escarpment (40.4° N and from 126° W to 124.7° W) is a topographic
high which is the eastern portion of the Mendocino Transform Fault. The Vizcaino Block is the anomalously shallow portion of the Pacific plate immediately south of the...
2002-10-28 (iso8601)
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The perturbation of a stably-stratified flow by irregular
terrain is studied utilizing a seven-layer, hydrostatic, and
potential enstrophy and energy conserving primitive equation
model. The Island of Oahu, Hawaii, and the surrounding ocean area...
1986-05-09 (iso8601)
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We investigated the response of hyporheic exchange flow (HEF) to wood removal in a small, low-gradient, gravel bed stream in southeast Alaska using a series of groundwater models built to simulate HEF for the initial conditions immediately after...
2009 (iso8601)
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1995-03-02 (iso8601)
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A new method is developed for studying large-scale temporal variability of ocean currents from
satellite altimetric sea level measurements at intersections (crossovers) of ascending and descending orbit
ground tracks. Using this method, sea level...
1985-05-20 (iso8601)
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Situated off the west coast of Vietnam in the Gulf of Thailand, Phu Quoc archipelago and its waters are well-known for their rich natural resources, especially the bounty of fishery resources. Under increasing pressure from the growing population,...
2000-04-07 (iso8601)
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Advances in forest carbon mapping have the potential
to greatly reduce uncertainties in the global carbon
budget and to facilitate effective emissions mitigation strategies
such as REDDC (Reducing Emissions from Deforestation
and Forest...
2014-12-08 (iso8601)
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The study of highlead logging operations through the use of
statistical models is investigated, and their potential use for estimating
and control of operations examined.
During the preliminary phases of the study 16 work elements
and 26...
1965-05-11 (iso8601)
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The Quartzburg District is seven miles north of Prairie City in
east-central Grant County, Oregon. The District is in a pre-Tertiary
window of volcanic, plutonic, and sedimentary rocks ranging from
Permo-Triassic to Eocene-Oligocene in age. The...
1975-06-12 (iso8601)
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Active faults in the Kaikoura region include the Hope,
Kekerengu, and Fidget Faults, and the newly discovered
Jordan Thrust, Fyffe, and Kowhai Faults. Ages of faulted
alluvial terraces along the Hope Fault and the Jordan
Thrust were estimated...
1989-02-15 (iso8601)
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The link between aboveground net primary productivity (ANPP) and resource gradients generated by complex terrain (solar radiation, nutrients, and moisture) has been established in the literature. Belowground ecosystem stocks and functions, such as...
2012-11-05 (iso8601)
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Coastal foredunes protect lives, infrastructure, and ecosystems during severe winter storms. In the U.S. Pacific Northwest (PNW), coastal foredune geomorphology is determined by both physical and ecological mechanisms. Before the 1900's, the...
2011-01-19 (iso8601)
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This study was conducted to investigate why root disease centers east of the
Cascade crest tend to be larger in diameter and more abundant than their counterparts to
the west, within subalpine forest stands of central Oregon. The trend in a 290...
1997-06-03 (iso8601)
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Solid phases that form under the influence of changing environmental conditions often record such changes in their chemical composition. Quantification of these compositional variations is invaluable in reconstructing paleoenvironmental changes....
1999-03-19 (iso8601)
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Abbott Creek Natural Area is a 2600 acre research area of the
Mixed-Conifer forest type. This study delineated plant association
units within the area, and demonstrates the use of the computer program
SIMORD as a tool in the definition of such...
1972-05-02 (iso8601)
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Precipitation data from 1988-1995 for 13 rain gauges of the Department of Forest
Engineering rain gauge network, and a longer precipitation record, 1976-1995, at Mapleton were analyzed. The objectives were to assess the spatial and temporal...
1997-04-25 (iso8601)
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Normal faults characterizing extensional provinces may terminate along-strike
at regions of zero extension, at zones of transform faults, or at triple junctions.
Termination of the Basin and Range extensional province in southeastern Oregon is...
2008-10-16T23:00:34Z (iso8601)
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Six Tertiary rock units are exposed in the Bear Creek-Wickiup Mountain-Big Creek area. They are: the late Oligocene to early Miocene Oswald West mudstones; the Big Creek sandstone member, the Pipeline member (a new unit), and the Silver Point...
1977-10-11 (iso8601)
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About 9600 nautical miles of marine gravity, magnetic, and bathymetric data were collected by Oregon State University during the cruise Yucatan'85 in the north and eastern margins of the Yucatan Peninsula, using a research vessel of the Mexican...
1986-06-13 (iso8601)
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The physical controls of snowmelt in the Pacific Northwest (PNW) are poorly
understood. While there have been numerous field and modeling investigations at the
plot and watershed scale, few studies have identified how the snow energy balance
(EB)...
2006-10-02T23:25:07Z (iso8601)
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Rio Grande, New Mexico. Shows plan and profile of the Rio Grande from Otowi Station to Embudo Creek. 1 plan sheet & 1 profile sheet. Sheet 2 of 2.
2024-04-24
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58 x 47 cm., on sheet 84 x 89 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Contour interval 20 feet." "Prepared in cooperation with the U. S. Atomic Energy Commission." "Geology mapped by R. L. Christiansen, P....
1965-04-24
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58 x 46 cm., on sheet 84 x 88 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Geology mapped in 1962-63." Includes description of map units, colored columnar section, 3 colored cross sections, and quadrangle...
1970-04-24
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90 x 71 cm. Relief shown by hachures. In bottom margin: "Julius Bien, Lith." "Note. This map has been constructed from atlas sheets of the U.S. Geographical and Geological Survey of the Rocky Mountain Region with additional material taken from the...
1878-04-24
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'Topography by Lee Morrison. Control by U.S. Geological Survey and U.S. Bureau of Reclamation. Surveyed in 1934.' Relief shown by contours and spot heights. 'Arrowhead Canyon Dam and reservoir site' hand-written on map. Map is part of a larger...
2024-04-24
2024-04-24 |
