The MILDEX cruise of October - November 1983 was a
multiship (including FLIP) experiment involving intensive
sampling of the ocean by a variety of instruments. The RV
Wecoma operated by Oregon State University College of
Oceanography sailed from Newport, Oregon on October 21 and
returned to San Diego, California on...
During 1971 the Department of Oceanography, Oregon State University,
continued its program of shore sampling of ocean temperatures and salinities
along the coast of the Pacific Northwest. Daily observations for six stations
are listed along with monthly maxima, minima, means and standard deviations
of temperature and salinity.
During 1970 the Department of Oceanography, Oregon State University,
continued its program of shore sampling of ocean temperatures and
salinities along the coast of the Pacific Northwest. Observations for 1960
through 1969 are contained in eight Data Reports which are listed under
references. The data in this report were collected...
An international Coupled Ocean-Atmosphere Response Experiment
(COARE) was conducted in the warm-pool region of the western equatorial
Pacific Ocean over a four-month period from November 1992 through February
1993 (Webster and Lukas, 1992). Most of the oceanographic and meteorological
observations were concentrated in the Intensive Flux Array (IFA) centered at...
This report summarizes the Seasoar and CTD observations from Wecoma
cruises W9306A (5 June to 12 July, 1993) and W9308B (14 August to 22 September
1993) conducted as part of the Eastern Boundary Currents Accelerated Research
Initiative, under funding by the Office of Naval Research. The cruises were
designed to...
The Department of Oceanography, Oregon State University, has
initiated a program for obtaining weekly samples of surface temperature
and salinity off the Oregon coast. Observations for 1960 and.1961 are
included in two Data Reports: No. 6 (Kujala and Wyatt, 1961) and No. 8
(Oliphant, Wyatt and Kujala, 1962). Data in...
An international Coupled Ocean-Atmosphere Response Experiment
(COARE) was conducted in the warm-pool region of the western equatorial
Pacific Ocean over a four-month period from November 1992 through
February 1993 (Webster and Lukas, 1992). Most of the oceanographic and
meteorological observations were concentrated in the Intensive Flux Array
(IFA) centered at...
An international Coupled Ocean-Atmosphere Response Experiment (COARE)
was conducted in the warm-pool region of the western equatorial Pacific Ocean over a four-month period from November 1992 through February 1993 (Webster and Lukas, 1992). Most of the oceanographic and meteorological observations were concentrated in the Intensive Flux Array (IFA) centered at...
Measurements of temperature and salinity in the upper 5 m of the ocean
along the equator showed cool fresh anomalies due to rain showers. The
measurements were made between 140 W and 110 W during April 1987, an
El Nino year. The eastern equatorial Pacific was characterized by weak winds...
This data report contains observations made from R/P FLIP as part of the first process-oriented NORPAX (North Pacific Experiment) experiment. The experiment was named POLE to indicate that the horizontal extent of sampling was small compared to the largest scale investigated in NORPAX.
The part of the experiment reported here...
Hydrographic and CTD measurements were taken from ninety-eight stations between Honolulu, Hawaii and Kodiak, Alaska from 4 May to 4 June 1984 on the second leg of the Marathon Expedition. This report consists of the cruise track, vertical sections, listings of all discrete hydrographic data, a subsample of the CTD...
We present velocity observations from a shipboard acoustic doppler current profiler (ADCP) on RN Wecoma during cruise W9508b, 17-27 August 1995. Results from the short half-day cruise W9508c on 31 August 1995 are also shown. The ADCP processing procedures for W9508b are described in detail. This cruise was part of...
The primary objectives of R/V Wecoma cruise W9907C were to: 1) collect threedimensional fields of temperature, salinity, and light absorption and attenuation using the towed, undulating vehicle SeaSoar; 2) collect 3-D fields of velocity using shipboard ADCP; 3) to make turbulence profiles along a single cross-shelf transect; and 4) locate,...
This report summarizes the SeaSoar and CTD observations from R/V Wecoma cruise
W9408A (23 August to 2 September 1994) conducted as part of the Coastal Jet Separation
(CJS) experiment, under funding from the National Science Foundation. The goal of this
study is to establish how and why a strong alongshore...
This study examines the seasonal variability in temperature and
salinity of the nearshore waters off Oregon and Northern California.
Specifically, temperature and salinity variations during summer and
winter were ana1yzed from data gathered at shore stations along the
coast and from hydrographic data collected within 25 nautical miles
of shore....
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...
During 1967 the Department of Oceanography, Oregon State University, continued its program of shore sampling of ocean temperatures and salinities along the coast of the Pacific Northwest. Observations for 1960 through 1966 are contained in five Data Reports which are listed under references. The data in this report were collected...
During 1968 the Department of Oceanography, Oregon State
University, continued its program of shore sampling of ocean temperatures
and salinities along the coast of the Pacific Northwest.
Observations for 1960 through 1967 are contained in six Data Reports
which are listed under references. The data in this report
were collected...
During 1963 and 1964 the Department of Oceanography, Oregon
State University, continued its program of shore sampling, of ocean
temperatures and salinities along the coast of the Pacific Northwest.
Observations for 1960, 1961, and 1962 are contained in three Data
Reports: No. 6 (Kujala and Wyatt, 1961), No. 8 (Oliphant,...
During 1961, a program of shore station sampling of ocean temperatures
and salinities was carried out by the. Oceanography Department of Oregon
State University. This is a continuation of the work reported by
Kujala and Wyatt (1961). Sampling was conducted at 11 locations along
the Oregon coast and at one...
This report includes the temperature and salinity data collected at nine shore stations along the Oregon coast from the Columbia River south to Bandon, Oregon. The purpose of this study is to obtain basic information and to supplement our monthly offshore oceanographic survey cruises.
As part of the Peru Currents study, CTD observations were made off the
coasts of Peru and Ecuador between 3°N and 17°S from the R/V Wecoma,
February-March 1983 and March-April 1985, and from the R/V Endeavor,
November-December 1983 and April-May 1984. Repeated CTD sections were
occupied within 300 km of...
CTD observations of temperature and salinity were made
off the coast of Peru between 12°S and 16°S from the
R/V EASTWARD, between 23 July and 16 August 1976. The
observations were made during Legs 0, 1, and 2 of JASON,
which was the middle phase of the JOINT-II project conducted...
As part of the Peru Currents study, CTD observations were made between February 1983 and April 1985 between 3° N to 17° S off the coasts of Peru and Ecuador. Vertical sections of temperature, salinity and sigma-theta vs
depth from 0 to 625 m are presented for each section completed...
Temperature, salinity, density and turbulent dissipation profiles measured using the Rapid Sampling Vertical Profiler during the Coastal Transition Zone Experiment, July 1988.
In this report we will present vertical sections of temperature, salinity and sigma-t from both CTD and bottle casts made on legs 1-5 of the R/V Eastward during JASON, and from CTD casts made on legs 1, 2 and 4 of the R/V Melville and legs .2 and 4 of...
CTD observations of temperature and salinity were made off the coast of Peru between 5°S and 16°S from the R/V MELVILLE, 4 March - 22 May 1977, and the R/V ISELIN, 5 April - 19 May 1977. These observations were made as part of MAM 77, the final phase of...
This report is an intermediate step in analyzing part of the hydrographic data from the 1972 Coastal Upwelling Experiment (CUE) off the coast of Oregon. It presents the author's interpretation of the vertical distribution of temperature, salinity and sigma-t along lines occupied on hydrographic cruises by R/V Yaquina during CUE....
CTD observations were made over the continental shelf and upper continental slope from the coast to approximately 60 km off central California between latitudes 34°N and 37.5°N. The measurements were made by Raytheon Service Company as part of the Central California Coastal Circulation Study sponsored by the Minerals Management Service....
Wecoma cruise W8807A was conducted in late July and early August 1988 as part of the Coastal Transition Zone project. CTD observations were made over a standard grid in the coastal transition zone off northern California between 37°N and 39.5°N that was occupied repeatedly during June, July and August; this...
Wecoma cruise W8706A was conducted in June 1987 as part of the pilot study for the Coastal Transition Zone project. CTD observations were made in the coastal transition zone off northern California between 37.5°N and 41.5°N and along 43°13'N off Coos Bay, Oregon. Altogether 133 stations were completed successfully. They...
Wecoma cruise W8702B was conducted in February 1987 as part of the pilot study for the Coastal Transition Zone project. CTD observations were made in the coastal transition zone off northern California between 37.5°N and 4l.5°N. Stations were planned along three alongshore transects, at distances of 60, 90 and 150...
CTD observations were made over the continental shelf and upper
continental slope from the coast to approximately 60 km off central California
between latitudes 34°N and 37.5°N. The measurements were made by Raytheon
Service Company as part of the Central California Coastal Circulation Study
sponsored by the Minerals Management Service....
CTD observations were made over the continental shelf and upper
continental slope from the coast to approximately 60 km off central California
between latitudes 34°N and 37.5°N. The measurements were made by Raytheon
Service Company as part of the Central California Coastal Circulation Study
sponsored by the Minerals Management Service....
CTD observations were made over the continental shelf and upper
continental slope from the coast to approximately 60 km off central California
between latitudes 34°N and 37.5°N. The measurements were made by Raytheon
Service Company as part of the Central California Coastal Circulation Study
sponsored by the Minerals Management Service....
This is the fifth report of data collected during a study designed to
determine the currents and water masses along the Oregon coast. The
first four reports cover the period from July 1958 to December 1961 (Wyatt
and Callaway, 1961; Wyatt and Kujala, 1961; Wyatt and Kujala, 1962; Wyatt
and...
CTD observations of temperature and salinity were made off Oregon and California between 34° N and 44° N from the R/V Wecoma, 5 Feb. - 17 Feb. 1981. The stations were from 2-360 km off shore, in water depths ranging from 30 to 4,300 meters. The maximum sampling depth at...
During the WELOC-77 cruise, May 21 - June 18, 1977, hydrographic and light beam transmission measurements were simultaneously made in situ off the coast of Peru on R/V WECOMA. Temperature, salinity and light
transmission data are listed for standard depths, and their vertical profiles are also presented.
The Coordinated Eastern Arctic Experiment (CEAREX) was a multi-platform geophysical study covering the period from winter 1988 to spring 1989 in the vicinity of the Yermak Plateau and Fram Strait. The Oceanography ("0") Camp component of CEAREX was designed to study the physical oceanographic conditions from the deep Nansen Basin...
Dramatic and ongoing changes pervading the Arctic and subarctic seas over
recent decades have motivated this effort to track and better understand hydrographic
variability using chemical tracers. Particular emphasis has been paid to differentiating
freshwater contributions to upper layers: namely Pacific water, meteoric water, and
sea-ice melt/formation.
Data collected in...
Moored instrument records, drogue displacements, and hydrographic
observations are used in describing the coastal currents and
upwelling off Peru. The data were obtained over the continental shelf
near 15°S. during a two week study in late March and early April of
1969.
First order statistics and graphical representations of current...
Sea level and current data collected near Newport, Oregon are
compared to determine an empirical relationship from which the low
frequency (f < .1 cpd) alongshore current field over the continental
shelf is estimated from observed sea level measurements at the coast.
Regression analysis of the near-surface (20-25 m) currents...
Direct measurements of vertical water motions were made in
the Oregon coastal region during the 1972 summer upwelling season.
The instruments used were the Webb-Voorhis vertical current meters
which are freely drifting neutrally buoyant floats capable of sensing
vertical motion. It was found that in the region studied, water tended...
Nearly three months of current meter records from five moorings off
the Oregon coast taken between October 1977 and January 1978 were analyzed
for near-inertial motions. The moorings were located from the midshelf
out to the foot of the continental slope, spanning the continental
margin. All but two of the...
In this report we describe a preliminary version of a temperature/conductivity profiler that combines the calibration accuracy of a CTD with the vertical resolution of a microstructure instrument and the ease of deployment of an XBT. We also describe the results of a test of this version on a month-long...
Preliminary temperature microstructure profiles resulting from the FRONTS experiment in January 1980 are presented. Also included are selected profiles of the kinetic energy dissipation rate estimated by the Batchelor scale technique.
This report documents observations of temperature and salinity made in the Arctic Ocean during the 1995 cruise of the submarine USS Cavalla. This cruise was the second civilian scientific cruise to the Arctic Ocean aboard a U.S. Navy Sturgeon-class submarine, and the first of five annual SCICEX cruises.
The SCICEX-95...
Dai 1 y temperature and sa 1 in i ty conditions measured in the surf at Agate Beach, Oregon, are given and summarized by 15 day periods, with the range, mean and standard deviation of each period indicated. Conditions in 1970 are briefly compared to those observed in 1968 and...
During February, March and April 1974, the interdisciplinary Coastal
Upwelling Ecosystems Analysis experiment known as JOINT-I took place over
the continental shelf and slope near Cabo Corveiro in the NW African upwelling
region. As part of the field program, Oregon State University
made a series of repeated hydrographic surveys from...
The Samoan Passage experiment was designed to determine the northward transport of abyssal water through the Samoan Passage (l0°S, 170°W). This topographic constriction forms the major connection for deep (>4000 m) interbasin flow between hemispheres in the Pacific (Figure 1). This report presents current meter data from the six subsurface...
Temperature, salinity, sigma-t and dissipation profiles from the Rapid Sampling Vertical Profiler for six transects as part of the Coastal Transition zone pilot experiment, June 1987.
The fall-winter surface current field off Oregon was determined by analysis of ten years of drift bottle data. Computer programs were developed for generating bottle tracks on a numerical grid, for interpolating bottle velocity components to fill void grid points and for smoothing irregularities in the velocity fields. Charts are...
The geopotential anomalies and the average meridional geostrophic
flow off Newport, Oregon, were computed from the data taken
during twenty-one hydrographic cruises.
The annual average of geopotential anomaly was 1.31 dynamic
meters with a seasonal variation of the order of 14 dynamic centimeters.
Highest values of geopotential anomaly occurred in...
A long and gradual transition between the summer and winter
oceanic regimes was observed off Oregon during the autumn of 1980.
Hydrographic sections and a single current meter mooring between
August and December show the ocean possessed characteristics during
fall that have not been observed during other seasons: a slow...
The physical characteristics of continental shelf waters off
Oregon during late winter and spring of 1975 are described and compared
with observations taken previously during summer. The currents
in winter are barotropic in the monthly means while in summer
the currents are baroclinic. Alongshore current fluctuations on the
time scale...
We sharpen our view of an eastern boundary current region during
the upwelling season through the analysis of several data sets.
We focus on the mesoscale flow field off of northern California,
observed during the Coastal Transition Zone (CTZ) experiment of 1988.
First, we estimate tidal currents in the region...
This report describes current meter measurements from an experiment to measure the deep western boundary current that carries dense water from the Antarctic to the Pacific Ocean. The field measurements were conducted as part of a joint two year experiment by Oregon State University, Texas A&M University, Woods Hole Oceanographic...
This report presents CTD observations of temperature and salinity as a function of hydrostatic pressure in the Kuroshio Extension in May 1981. Lowerings were made from the surface to the bottom along 152°E about every 30 nautical miles between 29°N and 41°N. Identical sections were made in July 1980 and...
This report presents CTD observations of temperature & salinity as a function of hydrostatic pressure in the Kuroshio Extension. The data was taken during the deployment of a ten element current meter array in the Kuroshio in July 1980. CTD lowerings were made from the surface to the ocean floor...
The Pacific Ocean basin is home to a set of hotspots diverse in their eruption
rate, duration of volcanism, and basalt chemistry. Pacific hotspots are found in a
spectrum of distinct plate tectonic settings, from near a spreading ridge to intraplate.
Cobb hotspot, which resulted in formation of the Cobb-Eickelberg...
This report presents time series measurements of velocity, temperature and conductivity made during the Lead Experiment (LEADEX). These observations were made in the Beaufort Sea, Arctic Ocean, in the vicinity of 73°N, 144°W, during March-April 1992. Month-long observations at the base camp were made between the surface and 400 m...
The distribution of herring (Clupea harengus pallasi) in
the Northeast Pacific extends from southern California to
northern Alaska. Studies on variation in herring life-history
are limited to local
characteristics and recruitment
populations or relatively restricted regions of the Northeast
Pacific. In this study I assessed herring life-history
patterns and recruitment...
Our component of the TROPIC HEAT 1987 experiment was
designed to investigate a number of questions raised by our
TROPIC HEAT 1984 measurements (Park et al, 1985; Mourn and
Caldwell, 1985; Mourn et al, 1986; Chereskin et al, 1986; Mourn et
al; 1987). In particular, the goals of LEG 2...
The warm pool region of the western tropical Pacific is of particular interest to atmospheric dynamics because it represents a significant source of energy to the atmosphere. A better understanding of heat transfer driven by mesoscale and turbulent circulations within this region could lead to improved global circulation models, and...
Sedimentary sections recovered during the Deep Sea Drilling Project and the Ocean
Drilling Program provide the opportunity to study the evolution of Neogene climate at high
resolution overtime periods spanning millions of years. Two components of the paleodlimatic
system, eastern equatorial Pacific carbonate sedimentation and global ice volume, were
examined...
Observations of temperature between 20 and 40 m depth were made with a towed thermistor chain in the North Pacific (50N, 145 W) during the Mixed Layer Experiment (MILE). The chain was usually towed at a speed of 3 m/s around a 20km square on alternate days for a three-week...
MILDEX, a mixed layer dynamics experiment, began
October 21, 1983 and lasted until November 16, 1983.
R.P. Flip, R.V. Wecoma and R.V. Acania rendezvoused at
34° N, 127° W to participate in joint observations of
the mixed layer and upper ocean. This report contains
data from the WAve Zone Profiler,...
The main problems for consideration are as follows: 1) Determine if there is biological justification for having a single coastwide season or have seasons which differ by geographical area; 2) Establish season opening(s) that on the average will occur as soon as 10 per cent or less of the crabs...
Persons concerned with the harvest and conservation of the crab resource of the Pacific Coast feel there is need for altering existing commercial fishing regulations. The following background on the matter is provided.
During an oceanographic cruise of the "E. W. Scripps" in May, 1939, off the coast of Oregon, four small, post-larval specimens of Anoplopoma fimitrita were taken at the surface of the sea with a dip net at two of the hydrographic stations off Cascade Head, Oregon.
Calcareous sediments containing a large percentage of foraminiferal
microskeletal tests were taken from sites in the Panama Basin
and subjected to an investigation to determine the consolidation characteristics
of this type of soil. The consolidation-stress curves and
the time rate of consolidation curves in particular were investigated
in this study....
A study was done on the zoogeography of species of oceanic
shrimp in the North Pacific from 22°N to 56°N and from 124°W to
145°E, using samples of shrimp collected from 1954 to 1969. These
collections were made during the following cruises: John R. Manning
Cruise 22, and the Hugh...
Examination of polished sections of manganese micronodules
from metalliferous sediments from the Bauer Deep reveals sequences
of ferromanganese deposition which are consistent for micronodules
from a single sediment sample and imply a common depositional
history for members of such assemblages. The relatively simple
'stratigraphy' of manganese micronodules, as compared to...
Major (Fe, Mn, Al) and minor (Cr, Mo, Pb, Zn, Cd) element
analyses of metalliferous sediments in cores from the East Pacific
Rise and Bauer Deep indicate that the Bauer Deep sediments are
similar in chemistry and origin to metalliferous sediments of the
East Pacific Rises.
Fe, Pb, and Zn...
University deployed two arrays of three sonobuoys over the Blanco
fracture zone and two arrays of four sonobuoys over the Gorda ridge
to detect and locate microearthquakes. Microearthquake activity predicted
by plate tectonic theory for the Blanco fracture zone and Gorda
ridge was observed by these arrays to originate from...
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 seismic reflection
data were collected during a four day period. This survey...
A free-air gravity anomaly map of the continental margin of
Peru between 12° and 18° S. Lat. shows a -110 to -220 mgl anomaly
associated with the Peru-Chile Trench, a -60 mgl anomaly over the
Pisco Basin on the continental shelf, and -120 mgl anomaly over the
Mollendo (or Arequipa)...
An airgun refraction line along the length of the caldera of Axial Seamount as
recorded by three Ocean Bottom Seismometers has been analyzed using the tau-zeta
inversion technique (Dorman and Jacobson, 1981). Five resulting velocity profiles
show that the seismic velocities of the upper 1.4 km of the crust are...
The thesis examines the principal air-sea properties at Ocean
Station Vessel N (30N 140W). In a descriptive section, meteorological
and oceanographic data for N are analyzed over 20 years (1951-1970)
and 7 years (1964-1970), respectively. A rainfall estimate is constructed
for the 20 year period. The yearly average rainfall is...
In order to determine whether the sediments found on the landward
wall of the Peru Trench are accreted Nazca Plate sediments,
the clay mineralogy and organic carbon contents of 52 surface
samples were submitted to factor analysis. Q-mode factor analysis
resolved the data from the Nazca Plate and Peru continental...
A study has been made of the vertical distributions and
migrations of a large number of zooplankton species at Weather
Station "P" in the Subarctic Pacific. Simultaneously towed horizontal
opening-closing nets were used for the study. The distributions
and migrations of 104 taxa have been subjectively grouped
into seven basic...
A total of 57 core top samples from the Panama Basin were
used in a quantitative study of complete radiolarian thanatocoenoses
to determine whether surface oceanographic conditions are reflected
in the microplankton faunas deposited onto and buried in the sea floor.
Information obtained from this study was used to resolve...
The Geochemical Ocean Sections Study (GEOSECS) program has carried
out an intensive study of physical and chemical parameters in the
Pacific and Atlantic Ocean. As a result, an enormous collection of high
quality data has been amassed for these two oceans. To analyze the
Pacific data, fourteen stations extending from...
A new technique for determining the amount of opal in deep-sea
sediments of any age is described. Using a normative calculation, a
portion of the analytical silica concentration of sediments is subtracted
as non-biogenic in proportion to the concentration of aluminum in the
sample. The ratio of SiO₂:Al₂O₃ used to...