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501 - 525 of 881 Items << < 16 17 18 19 20 21 22 23 24 25 > >>
501 - 525 of 881 Items << < 16 17 18 19 20 21 22 23 24 25 > >>
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Paradox Valley. The project would provide water for 33,000 acres of new land and for 10,000 acres of land now inadequately irrigated. The proposed plan of development is outlined in a status report dated March, 1953. Some detailed work has been...
2008-12-01
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The relief model of the Upper Colorado River Basin, pictured above, was constructed by
the Upper Colorado River Commission in cooperation with the Babson Institute of Business
Administration. This model shows the topographic features of the area...
2008-11-01
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Stabilization of the Yaquina Bay shoreline along the northeastern edge of the Hatfield Marine
Science Center (HMSC) campus became necessary to halt erosion that threatened both HMSC
critical infrastructure (seawater storage tank) and public access...
2013-02-10 (iso8601)
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The study analyzes atmospheric circulation around an idealized coastal cape during summertime upwelling-favorable wind conditions simulated by a mesoscale coupled ocean–atmosphere model. The domain resembles an eastern ocean boundary with a single...
2011-03 (iso8601)
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In April of 1974, Oregon State University conducted a geophysical
survey of the Orozco fracture zone, a Left-lateral transform fault
which offsets the East Pacific Rise off the coast of Mexico near
15°N, 105°W. Magnetic, gravity, bathymetric, and...
1975-08-06 (iso8601)
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In the face of dramatic declines
in groundfish populations and
a lack of sufficient stock assessment
information, a need has arisen for new
methods of assessing groundfish populations.
We describe the integration of
seafloor transect data gathered...
2002 (iso8601)
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Sufficiently large lake loads provide a means of probing rheological stratification of the crust and upper mantle. Lake Minchin was the largest of the late Pleistocene pluvial lakes in the central Andes. Prominent shorelines, which formed during...
1994 (iso8601)
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A high-resolution primitive equation model simulation is used to form an energy budget for the principal semidiurnal tide (M₂) over a region of the Hawaiian Ridge from Niihau to Maui. This region includes the Kaena Ridge, one of the three main...
2008-10 (iso8601)
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The method used to separate surface and internal tides ultimately defines properties
such as internal‐tide generation and the depth structure of internal‐tide energy flux. Here,
we provide a detailed analysis of several surface‐/internal‐tide...
2010-06-19 (iso8601)
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Two deep ocean hotspots of turbulent mixing were found
over the Oregon continental slope. Thorpe-scale analyses
indicate time-averaged turbulent energy dissipation rates of
ε > 10⁻⁷ W/kg and eddy diffusivities of Kp ~ 10⁻² m²/s at
both hotspots....
2007-01-09 (iso8601)
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Improved interpretations of the strength of the San
Andreas Fault near Parkfield, CA based on thermal data
require quantification of processes causing significant
scatter and uncertainty in existing heat flow data. These
effects include...
2004 (iso8601)
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This paper details the historical coastal evolution of the Columbia River littoral cell in the Pacific Northwest of the United States. Geological data from A.D. 1700 and records leading up to the late 1800s provide insights to the natural system...
2010-02-17 (iso8601)
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Here, we describe and demonstrate a geographic information systems-based lithic morphometric research (GLiMR) software approach. GLiMR accurately and rapidly handles a sequence of ArcGIS procedures to extract geometric morphometric data from 2D...
2015-04-03 (iso8601)
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Nearly 9,000 feet of Cretaceous mudstones, shales, sandstone,
and conglomerates are exposed along the northeast-trending Mitchell
anticline of central Oregon, These rocks are divided into two formations
on the basis of criteria developed in this...
1964-01-29 (iso8601)
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The thesis is a structural and petrographic study of approximately
23 square miles in the Millican SE quadrangle, Deschutes
County, Oregon. The area lies along the Brothers fault zone.
Bedrock in the area is of Pliocene to Recent age and consists...
1975-08-14 (iso8601)
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The type section of the Mascall Formation, which is located in
the John Day Valley, is interpreted to represent a sequence of
paleosols. These fossil soils were formed on a floodplain during the
middle Miocene. The measured thickness of this...
1988-02-12 (iso8601)
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This paper discusses the development of a new GIS extension named the Topographic Compartment Analysis Tool (TopCAT), which compares sequential digital elevation models (DEMs) and provides a quantitative and statistical analysis of the alongshore...
2012-08 (iso8601)
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Dams are often promoted as a tool to reduce poverty and spur economic development. Dam construction worldwide, and particularly in China, which has built nearly half the world's large dams since 1949, remains contentious due to the potential for...
2011-09-08 (iso8601)
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This work furthers the understanding of processes occurring in catchments that
affect stream nitrate concentrations using two different approaches: a temporally
intensive case study of three headwater catchments with varying land use (through...
2006-05-31 (iso8601)
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A study of the Prince of Wales Island alpine areas was undertaken
to determine what species occur in the region and to describe
plant communities making up the alpine vegetation.
For one month in 1972, specimens were collected and 78 micro-plots...
1973-04-02 (iso8601)
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Forest spatial pattern is a primary interest of landscape ecology due to the relationships between spatial configuration of biotic components and ecological processes. The spatial pattern must be measured in meaningful ways so that relationships...
1998-03-23 (iso8601)
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Growth strata geometries and deformed geomorphic surfaces reflect the shorttimescale growth of Sierra de Villicum (San Juan Province, Argentina). Accumulated deformation in repeated earthquakes is recorded by the structural geometry of deformed...
2003-06-18 (iso8601)
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Since the 1964 earthquake and geologic uplift, beavers (Castor canadensis) have expanded their historic range from the inland (outwash plain) Copper River Delta, Alaska to the once tidally influenced areas of the outer area (uplifted marsh). The...
2007-04-16T15:30:26Z (iso8601)
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Methodology for the utilization of LANDSAT-1 imagery and aerial photography on the environmental evaluation of water resources development is presented. Environmental impact statements for water resource projects were collected and reviewed for...
2011-07-01
2011-07-01 1976-09-01 |
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45 x 36 cm., on sheet 64 x 89 cm., fold. in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Contour interval 40 feet." "Prepared in cooperation with the U.S. Atomic Energy Commission." "Geology mapped in 1962-63." Includes text, 2...
1967-05-18
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