Index Catalog // ScholarsArchive@OSU

Abundance, movements, and feeding habits of harbor seals, Phoca vitulina, at Netarts and Tillamook Bays, Oregon

Creator:: Brown, Robin F. and Mate, Bruce R.
Abstract:: Patterns of seasonal abundance of harbor seals at Netarts and Tillamook Bays, Oregon, were documented by recording numbers of seals hauling out on tidally exposed sand flats in both bays. Harbor seal abundance at Tillamook Bay peaked during pupping (May-June) and molting (August) periods, while peak abundance at Netarts Bay...
Resource Type:: Article
Full Text:: , Oregon State University, Marine Science Center, Newport, OR 97365, pers. com- mun. April 1977

Age progressive volcanism in the New England seamounts and the opening of the Central Atlantic Ocean

Creator:: Duncan, Robert A.
Abstract:: Radiometric ages (K-Ar and ⁴⁰Ar- ³⁹Ar methods) have been determined on dredged volcanic rocks from seven of the New England Seamounts, a prominent northwest-southeast trending volcanic lineament in the northwestern Atlantic Ocean. The ⁴⁰Ar-³⁹Ar total fusion and incremental heating ages show an increase in seamount construction age from southeast to...
Resource Type:: Article
Full Text:: alkaline intrusions along the For the central At•lantic Ocean the pattern of northeast coast of

Structure of the coastal current field off Northern California during the coastal ocean dynamics experiment

Creator:: Kosro, P. Michael, 1951-
Abstract:: For 74 days during the spring and summer upwelling seasons of 1981 and 1982, in conjunction with the Coastal Ocean Dynamics Experiment, profiles of upper ocean currents were collected in the waters over the shelf and slope off northern California using a shipboard Doppler acoustic log. These measurements provide detailed...
Resource Type:: Article
Full Text:: During the Coastal Ocean Dynamics Experiment JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 92, NO. C2, PAGES

Tillamook volcanic series : further evidence for tectonic rotation of the Oregon Coast Range

Creator:: Magill, James, Cox, Allan, and Duncan, Robert A.
Abstract:: Paleomagnetic directions from the Eocene Tillamook Volcanic Series of the Oregon Coast Range point 460 clockwise from the expected Eocene field direction. Potassium argon dating of six dikes and flows from this formation yields a mean age of 44.3 ± 0.6 m.y. These results establish that the Oregon coastal block...
Resource Type:: Article
Full Text:: Oregon and Washington. Arrows indicate the mean paleomagnetic directions found for the re- spective

A comparison of techniques for magnetotelluric response function estimation

Creator:: Jones, Alan G., Chave, Alan D., Egbert, Gary D., Auld, Don, and Bahr, Karsten
Abstract:: Spectral analysis of the time-varying horizontal magnetic and electric field components yields the magnetotelluric (MT) impedance tensor. This frequency dependent 2x2 complex tensor can be examined for details which axe diagnostic of the electrical conductivity distribution in the Earth within the relevant (frequency dependent) inductive scale length of the surface...
Resource Type:: Article
Full Text:: ., Derivation, Meaning and Use off Geomagnetic Indices, Geophys. Monogr. Set., vol. 22, AGU, Washington, D.C

Tagged steelhead trout (Salmo gairdneri richardson) collected in the north Pacific by the Oshoro-Maru, 1980-1981

Creator:: Pearcy, William G. and Masuda, Kiyoshi
Abstract:: Bulletin of the Faculty of Fisheries, Hokkaido University. Vol. 33 No. 4
Resource Type:: Article
Full Text:: Department of Fish and Wildlife, for reading the coded-wire tags, and to the U.S.-Japan Cooperative Science

Magnetotelluric observations across the Juan de Fuca subduction system in the EMSLAB project

Creator:: Wannamaker, Philip E., Booker, John R., Filloux, Jean H., Jones, Alan G., Jiracek, George R., Chave, Alan D., Tarits, Pascal, Waff, Harve S., Egbert, Gary D., Young, Charles T., Stodt, John A., Martinez, Mario G., Law, Lawrie K., Yukutake, Takesi, Segawa, Jiro S., White, Anthony, and Green, A.W.
Abstract:: A magnetotelluric (MT)transect has been obtained near latitude 45øN from the active Juan de Fuca Spreading center, across the subduction zone and Cascades volcanic arc, and into the back arc Deschutes Basin region. This paper presents the MT data set and describes its major characteristics as they pertain to the...
Resource Type:: Article
Full Text:: criterion for the ocean floor electric field recording was the ability to measure the long-term field for

Remotely sensed reflectance and its dependence on vertical structure: a theoretical derivation

Creator:: Zaneveld, J. Ronald V.
Abstract:: An exact expression for the remotely sensed reflectance (RSR, upwelling radiance divided by downwelling scalar irradiance) just beneath the surface of the ocean is derived from the equation of radiative transfer. It is shown that the RSR at a given depth in the ocean depends only on the inherent optical...
Resource Type:: Article
Full Text:: the Radiation Transfer in the Oceans and Remote Sensing of Ocean Properties (National Center for

Setup and swash on a natural beach

Creator:: Sallenger, A. H., Jr. and Holman, Robert A.
Abstract:: Wave setup and swash statistics were calculated from 154 runup time series steep beach under incident waves varying from 0.4 to 4.0 m significant wave height. incident wave height, setup, swash height, and total runup (the sum of setup and were found to vary linearly with the surf zone similarity...
Resource Type:: Article
Full Text:: , report, Beach Erosio• Board, U.S. Army Corps Eng., Washington, D.C., 1958. Gallagher, B., Generation

Time Evolution of Surface Chlorophyll Patterns From Cross-Spectrum Analysis of Satellite Color Images

Creator:: Denman, Kenneth L. and Abbott, Mark R.
Abstract:: Sequences of coastal zone color scanner (CZCS) images from the offshore region adjacent to Vancouver Island, Canada, have been analyzed to estimate the time rate of decorrelation of surface phytoplankton chlorophyll pigment patterns. In these high-latitude, high-pigment areas, CZCS-derived pigment estimates were lower than those obtained from ship samples by...
Resource Type:: Article
Full Text:: . However, for 11 ship samples in the Coastal Ocean Dynamics Experiment (CODE) area off north- ern

Coastal upwelling off Peru during normal and El Nino times, 1981-1984

Creator:: Huyer, Adriana, 1945-, Smith, Robert L. (Robert Lloyd), 1935-, and Paluszkiewicz, Theresa
Abstract:: Repeated conductivity, temperature, and depth (CTD) sections were made across the continental margin off Peru at 5°S and 10°S between November 1981 and May 1984, i.e., before, during, and after El Nino of 1982-1983. Coastal sea level at Paita (5°S) and Callao (12°S) began to rise in early October 1982...
Resource Type:: Article
Full Text:: Commer., Nat. Oceanic and Atmos. Admin., Washington, D.C., 1984. Fahrbach, E., C. Brockmann, N

Wave energy saturation on a natural beach of variable slope

Creator:: Sallenger, Asbury H. Jr. and Holman, Robert A.
Abstract:: Time series of flow were measured across the inner surf zone during a storm. These data were used to quantify the dependence of wave height (transformed from measured flow) and velocity on local slope and depth. Similar to previous studies, as incident waves broke and propagated into the surf zone,...
Resource Type:: Article
Full Text:: . W., Laboratory study of breakers, Gravity Waves, Circ. 52, U.S. Bur. Stand., Washington, D.C., 1952

Tectonically controlled origin of three unusual rock suites in the Woodlark basin

Creator:: Abbott, Dallas and Fisk, Martin R.
Abstract:: We propose alternative mechanisms for the origin of three unusual rock suites, high-Mg andesites, NaTi basalts, and arclike rocks, that have been dredged from the Woodlark basin, southwest Pacific Ocean. We show that the high-Mg andesites and NaTi basalts are associated with an unusually cool ridge environment. The cooling is...
Resource Type:: Article
Full Text:: the Woodlark basin [Perfit et al., 1986]. A mid-ocean ridge type, depleted [%urce for these rocks is

Origin of the Louisville ridge and its relationship to the Eltanin Fracture Zone System

Creator:: Watts, A. B., Weissel, J. K., Duncan, Robert A., and Larson, R. L.
Abstract:: We have combined shipboard and Seasat altimeter derived data in an intergrated geological and geophysical study of the Louisville Ridge; a 3500-km-long seamount chain extending from the Tonga trench to the Eltanin Fracture Zone. A break in the smooth trend of the ridge at latitude 37.5°S has been recognized in...
Resource Type:: Article
Full Text:: sufficiently for a portion of the ridge to have been emplaced on crust with an offset. After about 12 Ma

Seasonal cycles of currents, temperatures, winds, and sea level over the northeast pacific continental shelf: 35°N to 48°N

Creator:: Strub, P. Ted, Allen, John S., Huyer, Adriana, 1945-, Smith, Robert L. (Robert Lloyd), 1935-, and Beardsley, R. C.
Abstract:: Seasonal cycles of coastal wind stress, adjusted sea level (ASL), shelf currents, and water temperatures off the west coast of North America (35°N to 48°N) are estimated by fitting annual and semiannual harmonics to data from 1981-1983. Longer records (9-34 years) of monthly ASL indicate that these two harmonics adequately...
Resource Type:: Article
Full Text:: /summer as follows: For fall/winter, monthly mean winds north of 35øN are northward for 3-6 months

The signature of El Nino off Oregon, 1982-1983

Creator:: Huyer, Andriana, 1945- and Smith, Robert L. (Robert Lloyd), 1935-
Abstract:: Current and conductivity, temperature, and depth (CTD) measurements were made over the Oregon shelf near 43°N between February 1981 and April 1984 as part of a large-scale west coast shelf experiment (SuperCODE). The data set includes a nearly continuous record of current velocity and temperature over the continental shelf off...
Resource Type:: Article
Full Text:: salinities of the surface layer, Ref Publ. 2, 173 pp., Nav. Oceanogr. Office, Washington, D.C., 1976

The signature of El Nino off Oregon, 1982-1983

Creator:: Huyer, Adriana, 1945- and Smith, Robert L. (Robert Lloyd), 1935-
Abstract:: Current and conductivity, temperature, and depth (CTD) measurements were made over the Oregon shelf near 43°N between February 1981 and April 1984 as part of a large-scale west coast shelf experiment (SuperCODE). The data set includes a nearly continuous record of current velocity and temperature over the continental shelf off...
Resource Type:: Article
Full Text:: salinities of the surface layer, Ref Publ. 2, 173 pp., Nav. Oceanogr. Office, Washington, D.C., 1976

Interannual variability in phytoplankton pigment distribution during the spring transition along the west coast of North America

Creator:: Thomas, A. C. and Strub, P. Ted
Abstract:: A 5-year time series of coastal zone color scanner imagery (1980-1983, 1986) is used to examine changes in the large-scale pattern of chlorophyll pigment concentration coincident with the spring transition in winds and currents along the west coast of North America. The data show strong interannual variability in the timing...
Resource Type:: Article
Full Text:: the National Meteorological Center, Washington, D.C. Daily observations of cloud cover collected by

Seismic strike-slip faulting and the development of the North China basin

Creator:: Chen, Wang-Ping and Nabelek, John
Abstract:: The actively subsiding North China sedimentary basin is associated with an unusually high level of seismic activity. This oil- and gas-producing basin has been the site of nine large (M ≥ 7), destructive earthquakes since 1600 A. D. An analysis of faulting during the Tangshan earthquake sequence, which includes some...
Resource Type:: Article
Full Text:: slip on NNE trending faults account for about two-thirds of the seismic moment released in this

Wind-driven surface transport in stratified closed basins: Direct versus residual circulations

Creator:: Strub, P. Ted and Powell, Thomas M.
Abstract:: A numerical model has been used to investigate the wind-driven circulation in a stratified basin of moderate size, Lake Tahoe, California-Nevada. Two types of circulation are identified: "direct" circulations, in which the current directions remain relatively constant and the mean circulation formed over several days resembles the instantaneous circulation, and...
Resource Type:: Article
Full Text:: that reso- nance with the wind selects this period. Schwab [1983] also models Lake Michigan for the

ScholarsArchive@OSU

Abundance, movements, and feeding habits of harbor seals, Phoca vitulina, at Netarts and Tillamook Bays, Oregon

Age progressive volcanism in the New England seamounts and the opening of the Central Atlantic Ocean

Structure of the coastal current field off Northern California during the coastal ocean dynamics experiment

Tillamook volcanic series : further evidence for tectonic rotation of the Oregon Coast Range

A comparison of techniques for magnetotelluric response function estimation

Tagged steelhead trout (Salmo gairdneri richardson) collected in the north Pacific by the Oshoro-Maru, 1980-1981

Magnetotelluric observations across the Juan de Fuca subduction system in the EMSLAB project

Remotely sensed reflectance and its dependence on vertical structure: a theoretical derivation

Setup and swash on a natural beach

Time Evolution of Surface Chlorophyll Patterns From Cross-Spectrum Analysis of Satellite Color Images

Coastal upwelling off Peru during normal and El Nino times, 1981-1984

Wave energy saturation on a natural beach of variable slope

Tectonically controlled origin of three unusual rock suites in the Woodlark basin

Origin of the Louisville ridge and its relationship to the Eltanin Fracture Zone System

Seasonal cycles of currents, temperatures, winds, and sea level over the northeast pacific continental shelf: 35°N to 48°N

The signature of El Nino off Oregon, 1982-1983

The signature of El Nino off Oregon, 1982-1983

Interannual variability in phytoplankton pigment distribution during the spring transition along the west coast of North America

Seismic strike-slip faulting and the development of the North China basin

Wind-driven surface transport in stratified closed basins: Direct versus residual circulations

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