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601 - 625 of 881 Items << < 20 21 22 23 24 25 26 27 28 29 > >>
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The Chuck Williams papers document the life and work of Charles Otis "Chuck" Williams during the years 1943 to 2016. The materials provide insight into the history of the Columbia River Gorge and the creation of the Columbia River Gorge National...
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The Wetlands Inventory and Survey Maps document the National Wetlands Inventory as conducted in the western United States and the central Willamette Valley and Pacific Coast in Oregon by the U.S. Fish and Wildlife Service, Office of Biological...
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The Gerald W. Williams Collection
consists of Williams' personal papers, historic photograph collection, and
related materials pertaining to the history of the U.S. Forest Service as
well as the forestry, environmental history, Native Americans,...
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Honorable Arthur ¥• Watkins
-2-
Power Site Reserve No, 721
it it it ti 732
Power Site Classification No* 3
« it » « 60
b n n « 87
tt a » « 93
July 11, 1919 December 27, 1919
May 17, 1921
February 21, 1924 February 14,...
2009-04-01
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The people of the area have taken the initial steps in the organization of a Conservancy District for contracting with the Federal Government. It is planned to have this Conservancy District fully organized by August, 1957 in order to get a tax...
2008-12-01
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We used radiotelemetry to study space use and habitat selection of 16 Northern Spotted Owls (Strix occidentalis caurina) on the eastern slope of the Cascade Mountains, Washington, U.S.A., in 1989–1990. We used a geographical information system...
2015-06 (iso8601)
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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...
2015-02-11 (iso8601)
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The Pastos Grandes Caldera Complex (PGCC) in southwest Bolivia has produced two large-volume (≥800 km³ DRE) dacite ignimbrites from a nested caldera source over a period of 5.5 Myr. In addition to the large-volume ignimbrites, a small-volume...
2014-06-04 (iso8601)
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A free-air gravity anomaly map of the area between 10°-17°N and
90°-101°W shows distinctive positive and negative anomalies which
parallel the Tehuatepec Ridge. The positive anomaly approximately
overlies the topographic expression of the ridge....
1975-07-17 (iso8601)
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Detailed current profiles between the sediment-water interface
and 20 cm above it reveal a viscous sublayer in the bottom boundary
layer on the Oregon continental shelf. Data from three field experiments
are used to test fundamental assumptions...
1981-09-04 (iso8601)
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Motivated by the general objective of pursuing oceanographic process and data assimilation studies of the complex, nonlinear eddy and jet current fields observed over the continental shelf and slope off the west coast of the United States, we...
1990-07 (iso8601)
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Since 2003, 39 small earthquakes have been detected offshore central Oregon in the nominally locked part of the Cascadia subduction zone, where very little seis- mic activity has been recorded in spite of a paleo-seismic record of great subduction...
2011-08-16 (iso8601)
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Data from Geostationary Operational Environmental
Satellites are used to study the seasonal evolution of
temperature fronts in the northern California Current
System (CCS), focusing on the interactions with
topographic features. Fronts first...
2005 (iso8601)
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Anthropogenic nitrogen (N) deposition has had substantial impacts on forests of North America. Managers
seek to monitor deposition to identify areas of concern and establish critical loads, which define the
amount of deposition that can be...
2013-07-15 (iso8601)
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The Nanga Parbat-Haramosh massif (NPHM) is a unique structural
and topographic high in the northwestern corner of the Himalayan
convergence zone. Previously, the NPHM was thought to be bounded by
the MMT, a thrust along which the Kohistan-Ladakh...
1986-05-29 (iso8601)
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This study was designed to provide a physical and ecological analysis of paired
watersheds in the semi-arid western juniper (Juniperus occidentalis) woodlands of
Central Oregon. Instrumentation and monitoring was accomplished in Jensen and Mays...
1996-01-26 (iso8601)
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Newberry Volcano in central Oregon formed at the intersection of extensional fault systems defining the Basin and Range extensional province, the Cascades Graben and the Brothers Fault Zone. A unique structural orientation characterizes each fault...
2012-04-20 (iso8601)
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We characterized the structure and composition of unmanaged riparian forests in three river basins in Oregon’s coastal mountains. Our objective was to evaluate stand attributes at three spatial scales: streamside (site), drainage network (stream...
1999 (iso8601)
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Fire history and fire regimes were reconstructed for a 450 km² area in the central
western Oregon Cascades, using tree-ring analysis of fire scars and tree origin years at
137 sampled clearcuts. I described temporal patterns of fire frequency,...
1998-08-24 (iso8601)
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The links between forests, streamflow, and climate are poorly understood. Despite hundreds of studies over the past 60 years, fundamental questions of forests' effects on the hydrologic cycle remain unanswered. The hydrological cycle involves...
2009-06-17T17:39:11Z (iso8601)
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During the last decades, there has been increasing interest in ground-based
mechanized harvesting systems in the western United States as harvest of second growth
increased. A major reason for that interest is that labor productivity using...
1998-01-15 (iso8601)
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