The extent and mechanism of energy dissipation has been studied in Coos Bay, a coastal plain estuary. Coos Bay is located on the central Oregon coast, 184 nautical
miles south of Astoria, Oregon, and 35 nautical miles north of Cape Blanco. Past field work in Coos Bay and data obtained...
Using the hydrographic data collected by the ACONA from June
1961 to May 1963, the Oregon coastal front has been examined. Representative
sigma-t surfaces were chosen to delineate the front, and
changes in position of these surfaces with time were used to obtain
zonal flow rates for the frontal and...
Landsliding is a significant contributor to continuous erosion
of the 150-mile northern Oregon coast. Direct loss of land to the sea
by landslides occurs along 47 percent of the coast. The remaining 53
percent has minor shifting of sand along depositional areas such as
spits and dunes. These minor movements...
The oceanic phenomenon of upwelling along the Oregon coast is
examined. Upwelling in both the open ocean and coastal regions is
discussed. An idealized model is used, envisaging the ocean off
Oregon to consist of homogeneous surface and deep layers separated
by a pycnocline. The equations of motion are solved...
Twelve earthquakes off the Oregon and Northern California
coasts were used in this research to study whether faulting associated
with these quakes was of the San Andreas type as observed in
California. The first motions of the incident P and S waves recorded
at various seismic stations in the Pacific...
The copepod population in Oregon coastal waters was examined from 116 oblique plankton tows taken during 1962. Quantitative Clarke-
Bumpus samplers were used and stations ranged from 5-105 miles from shore along four hydrographic lines. Forty-six species of copepods were identified. The total adult population varied according to distance from...
This paper deals with the bone structure of albacore, fin whale and deep-sea rat-tail. The major components of bone - ash, organic, fat and water content are expressed on a volumetric basis. It has been found that both rat-tail and whale bone tissue are highly mineralized and the mineralization occurs...
A marine geophysical study using shallow seismic reflection, gravity and magnetic methods of investigation was done for an offshore area near Newport, Oregon. The area is bounded by the latitudes 44°1O' to 44°50' N. and longitudes 124°07' to 124°30' W. The interpretation of observational data showed that the geology of...
Three realms of deposition, Marine, Fluviatile, and Marine-
Fluviatile, are recognized in Yaquina Bay, Oregon, on the basis of
sediment texture and mineralogy. The Marine Realm extends 1.5
miles into the entrance of the estuary and is typified by normal
marine salinity and vigorous tidal action. Sediments of this realm...
Solar radiation intensities, incident to the sea surface off the Oregon
coast, are measured and compared. Simplification of some physical
and biological problems can be anticipated if the average radiation
received over a broad segment of ocean can be accurately indicated
by the amount recorded at the land station.
The...
This thesis is concerned with near source primary seismic waves generated by, the Gnome, Hardhat, Shoal and Haymaker underground nuclear explosions. Records of ground motion between 0.3 and 20.0 kilometers from the sources were analyzed in terms of displacement amplitude and energy variations with distance. The observed data have been...
The first cycle of seismic waves recorded at distances of 45,
300 and 355 km. from the GNOME nuclear explosion was used to determine
whether the near source wave characteristics at 0.3 km.
could be determined from distance measurements. Both head wave
and body wave propagation were considered. First the...
A tidal and sea level survey was begun in Yaquina Bay, Oregon,
on 8 May, 1964. A continuous recording tide gage was installed at
the pier of the Oregon State University Marine Science Center.
An harmonic analysis of the observed data was made, and the
major tidal constants were compared...
The purposes of this investigation were to measure the relative
levels of enzymatic and respiratory metabolism of some vertically
migrating mesopelagic fishes collected from the ocean waters off
Oregon and to modify and adapt an enzyme method for use as a measure
of metabolic activity at sea with a minimum...
The climate and the exchange of heat between atmosphere and
ocean are examined in a region adjacent to Washington and Oregon,
and in two sub-regions adjacent to Oregon. The sub-regions are
chosen such that one contains the nearshore upwelling region and the
other borders it on the seaward side.
The...
The continental terrace west of Oregon between 43° 50'N and
44° 40' N latitude is 50 to 55 miles wide. It consists of a continental
shelf, 16 to 35 miles wide, and a continental slope, 16 to 37 miles
wide. The eastern portion of the shelf is a smooth, sediment...
The probable pollution distribution and flushing times have been
calculated for the Columbia River Estuary, a coastal plain estuary.
The pollution distribution was determined by the fresh water fraction
and by the diffusion equation. The flushing times were calculated by
the modified tidal prism method and by the fraction of...
The physical linkage between oceanic earthquakes and most
tsunamis is generally accepted. The commonly offered method of
generation of a tsunami calls for displacement of submarine blocks
of the earth's crust. But, the mechanism of communication of seismic
energy to the water by the impulsive movements of the sea floor...
The nature of flow in stratified reservoirs has been studied and
a method developed, based on a laboratory model study, to predict
the quality of the water discharged from the reservoir. The experimental
data has been evaluated in dimensionless form, so that the
results may be applied to actual reservoirs....
Cells of an obligately psychrophilic marine bacterium, Vibrio
marinus, strain MP-1, were grown at 4 C and 15 C and studied for
possible physiological differences. No differences were noted in
sugar fermentation or temperature-shift growth studies; in both cases
adequate nutrients were available. Some differences were noted in
viability retention...
The principal salinity extrema and extremum surfaces of the
world ocean are described by the analysis and plotting of data from
885 hydrographic stations in the three major oceans, the Southern
Ocean, and the American Mediterranean Sea. The distributions of
salinity, temperature, depth, and density along the extremum surfaces,
plotted...
A study was undertaken in Yaquina Bay, Oregon during the
summer of 1964 to determine the distribution and the factors affecting
the distribution of the polychaete worm, Nephtys caecoides,
Hartman, 1938, in the estuary.
This organism has a continuous distribution from offshore to
a point approximately eight kilometers into the...
Sediments on the inner portion of the Oregon continental shelf
consist of clean, well-sorted, detrital sand. This sand has an average
median diameter of 2.53Φ (. 173 mm) and is both positively and
negatively skewed. Deposits with median diameters in the coarse
sand and gravel classes occur at depths of...
Netarts Bay is a coastal lagoon on the northern Oregon coast. Four major sedimentary environments are recognized including channel, sand flats, mud flats, and marsh. Fine-grained sediment is carried in by streams and deposited in the marshes and mud flats. Fine sand for the channel and sand flats is derived...
Fifty-two one-meter plankton net samples from four stations off Newport, Oregon, were examined for composition and abundance of euphausiids and copepods. They provided data on dominance, species associations and environmental relationships. The euphausiid-copepod population off Oregon is composed of 12 numerically dominant species. These species occurred in most of the...
From measurements of thermal and electrical conductivities of
64 ocean sediment samples obtained from piston cores taken off the
Oregon Coast, and from 37 water-saturated sandstone samples analyzed
by Zierfuss and Van der Vliet (1956), as well as 51 thermal
conductivities and water contents of ocean sediments analyzed by
Ratcliffe...
A weather station was established on the dock of the Oregon State
University Marine Science Center, Yaquina Bay, Oregon. A total of
197 weather observations was made from 30 June 1966 to 23 September
1966, with emphasis on the determination of the rate of evaporation
from an evaporation pan and...