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Biology of neustonic larval and juvenile fishes and crabs off Oregon, 1984Shenker, Jonathan M. 16 April 1985 (has links)
Graduation date: 1986
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Subsurface currents off the Oregon coastStevenson, Merritt R. 11 March 1966 (has links)
Graduation date: 1966
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Vertical distribution of radioactivity in the Columbia River estuaryHanson, Peter James 11 May 1967 (has links)
In situ salinity, turbidity and temperature were measured at
discrete depths and water samples for radioanalysis were simultaneously
collected in the Columbia River Estuary using a specially designed
instrument package.
Particulate radioactivity was concentrated by filtration and the
dissolved radioactivity by evaporation or ferric oxide bulk precipitation.
Radioanalysis was by gamma-ray spectrometry and data
reduction by computer. Chromium-51 was mostly dissolved and
conservative in brackish water, while zinc-65 was mostly particulate
and non-conservative. The intrusion of salt water into the estuary
was seen to greatly increase the concentrations of particulate
chromium-51, zinc-65 and scandium-46 near the bottom.
The fall and rise in estuarine radioactivity levels were followed
during an infrequent pause in Hanford reactor operations.
Changes in radioactivity levels of up to three orders of magnitude
were recorded at Astoria, Oregon, some 380 miles from the reactors.
The pause in reactor operations enabled the determination of
river flow times from the reactors to Astoria. Flow times of 12
and 19 days were measured for average river discharges of 290,000
and 130,000 c.f.s., respectively. / Graduation date: 1967
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Seasonal variation of wind gustiness in a portion of the Columbia GorgeBaker, Robert W. 16 June 1976 (has links)
The seasonal variation of wind speed fluctuations is studied at
four locations in The Dalles area of the Columbia River Gorge.
Three of the sites are located in or near the valley floor while the
fourth site is on top of a 900 m (3000 ft) ridge just north of The Dalles.
The speed fluctuations or gustiness at these sites varies with terrain
roughness, wind speed, and atmospheric stability.
Due to the channelling effects of the Gorge, wind flow in The
Dalles area is predominantly upriver or downriver. Strongest winds
occur from the west at all four of the sites that were analyzed.
Highest gustiness values occurred at the Martin Marietta site
located near the rugged foothills of the eastern slopes of the Cascade
Mountain Range. Moderate gustiness values were common at KCIV
located on the top of the ridge north of The Dalles and at the D.C.
Test Site surrounded by rolling hills. Smoothest flow was found along
the relatively level valley floor at The Dalles Dam.
Gustiness in relation to wind speed varied at all four sites.
Gustiness values increased with speed through the moderate speed
range at KCIV while gustiness decreased with speed at The Dalles
Dam and the Martin Marietta site. No distinct relationship was found
at the D.C. Test Site.
At KCIV changes in gustiness are directly related to the amount
of solar insolation and hence the atmospheric stability. Gustiness
values were highest during the summer and daytime values were
greater than those at night during both winter and summer. In contrast,
at the other three sites near or on the valley floor no distinct
relationship between the stability variations and the changes in gustiness
could be found. Results indicated that the gustiness values
during the winter at these three locations exceeded those during the
summer. It appears that the unstable nature of the post frontal
wintertime air mass is responsible for the strong and turbulent
northwest flow.
Although moderate speed fluctuations were common at KCIV,
this site is the most appealing of the four locations for wind power
generation due to the persistency of moderately strong winds during
both summer and winter. Least attractive of the four sites is Martin
Marietta where high gustiness values along with weak winter winds
provide little usable wind energy. / Graduation date: 1977
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Rural Philomath Oregon 1850-1930 : geography and economy in oral historyRussell, John A. (John August) 05 June 1998 (has links)
Ranching and lumbering were two of the primary economic practices in a
small rural study area south of Philomath Oregon (in Benton County), from
first Euro-American settlement through 1930. Ranching was common but
lumbering was restricted by geographical and market transportation
problems until after 1900. Catalysts for change came in the form of
individuals and advanced technology. The introduction of trucks marked a
cusp between two eras for both loggers and cowboys. Two important
historical facts were discovered through oral history-gathering, regarding
this rural area: first, the story of the first successful lumber company to
build a mill close to Philomath, and second, the occurrence of a remarkably
popular Round-Up in this small town, in 1916. The two primary oral
informants were both born at a rural mill settlement established by this
lumber company, at the foot of the Coast Range, in the southwest part of
the study area. Junctions (and distinctions) between geography and
economy, city and country, loggers and ranchers, and oral and written
history are highlighted in specific detail. Because of long geographical
isolation from big lumber markets, this region's timberlands, mills, loggers
and lumber companies remained in the hands of local people, into the
1950s. This area thus underwent a history quite different from coastal
logging history. Attention to local oral sources and specific catalysts for
change in other such small rural regions would broaden current historical
understanding of the history of the West, and the Pacific Northwest. / Graduation date: 1999
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Taxonomy of some endophytic and epiphytic genera of Phaeophyta on the Oregon coastO'Flaherty, Mary Louise 11 May 1966 (has links)
Graduation date: 1966
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Magma chamber processes over the past 475,000 years at Mount Hood, Oregon : insights from crystal zoning and crystal size distribution studies /Darr, Cristina M. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 91-96). Also available on the World Wide Web.
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Utilization of the Columbia River Estuary by American shad, Alosa sapidissima (Wilson) /Hammann, Mark Gregory. January 1981 (has links)
Thesis (M.S.)--Oregon State University, 1982. / Typescript (photocopy). Includes bibliographical references (leaves 37-40). Also available on the World Wide Web.
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Shell and archaeology : an analysis of shellfish procurement and utilization on the central Oregon coast /Barner, Debra Carol. January 1981 (has links)
Thesis (M.A.)--Oregon State University, 1982. / Typescript (photocopy). Includes bibliographical references (leaves 97-105). Also available on the World Wide Web.
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Geology, geomorphology, and dynamics of mass movement in parts of the Middle Santiam River drainage basin, western Cascades, Oregon /Hicks, Bryan A. January 1982 (has links)
Thesis (M.S.)--Oregon State University, 1982. / Typescript (photocopy). Some maps folded in pocket. Includes bibliographical references (leaves 156-169). Also available via the World Wide Web.
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