Index Catalog // ScholarsArchive@OSU

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:: the Coastal Ocean Dynamics Experiment P. MICHAEL KOSRO College of Oceanography, Oregon State

cBathy: A robust algorithm for estimating nearshore bathymetry

Creator:: Holman, Rob, Plant, Nathaniel, and Holland, Todd
Abstract:: A three-part algorithm is described and tested to provide robust bathymetry maps based solely on long time series observations of surface wave motions. The first phase consists of frequency-dependent characterization of the wave field in which dominant frequencies are estimated by Fourier transform while corresponding wave numbers are derived from...
Resource Type:: Article
Full Text:: estimating nearshore bathymetry Rob Holman,1 Nathaniel Plant,2 and Todd Holland3 Received 10 September 2012

Observations of near-inertial surface currents off Oregon: Decorrelation time and length scales

Creator:: Kim, Sung Yong and Kosro, P. Michael
Abstract:: High-resolution (km in space and hourly in time) surface currents observed by an array of high-frequency radars off Oregon are analyzed to quantify the decorrelation time and length scales of their near-inertial motions. The near-inertial surface currents are dominantly clockwise with amplitudes of 9-12 cm s⁻¹. However, they appear asymmetric...
Resource Type:: Article
Full Text:: currents off Oregon: Decorrelation time and length scales Sung Yong Kim1 and P. Michael Kosro2 Received 8

Satellite observations of chlorophyll, phytoplankton biomass, and Ekman pumping in nonlinear mesoscale eddies

Creator:: Gaube, P., Chelton, D. B., Strutton, P. G., and Behrenfeld, Michael J.
Abstract:: Nonlinear mesoscale eddies can influence biogeochemical cycles in the upper ocean through vertical and horizontal advection of nutrients and marine organisms. The relative importance of these two processes depends on the polarity of an eddy (cyclones versus anticyclones) and the initial biological conditions of the fluid trapped in the core...
Resource Type:: Article
Full Text:: , phytoplankton biomass, and Ekman pumping in nonlinear mesoscale eddies P. Gaube,1,2 D. B. Chelton,1 P. G

Evaluation of directly wind-coherent near-inertial surface currents off Oregon using a statistical parameterization and analytical and numerical models

Creator:: Kim, Sung Yong, Kosro, P. Michael, and Kurapov, Alexander L.
Abstract:: Directly wind-coherent near-inertial surface currents off the Oregon coast are investigated with a statistical parameterization of observations and outputs of a regional numerical ocean model and three one-dimensional analytical models including the slab layer, Ekman, and near-surface averaged Ekman models. The transfer functions and response functions, statistically estimated from observed...
Resource Type:: Article
Full Text:: numerical models Sung Yong Kim1, P. Michael Kosro2, and Alexander L. Kurapov2 1Division of Ocean Systems

Influence of varying upper ocean stratification on coastal near-inertial currents

Creator:: Kim, Sung Yong, Kurapov, Alexander L., and Kosro, P. Michael
Abstract:: The influence of varying horizontal and vertical stratification in the upper layer ( inline image m) associated with riverine waters and seasonal atmospheric fluxes on coastal near-inertial currents is investigated with remotely sensed and in situ observations of surface and subsurface currents and realistic numerical model outputs off the coast...
Resource Type:: Article
Full Text:: stratification on coastal near-inertial currents Sung Yong Kim1, Alexander L. Kurapov2, and P. Michael Kosro2

Tidal currents on the central Oregon shelf : models, data, and assimilation

Creator:: Erofeeva, Svetlana Y., Egbert, Gary D., and Kosro, P. Michael, 1951-
Abstract:: Measurements of tidal currents on the central Oregon shelf are available from several sources, including recent high frequency (HF) coastal radar and Acoustic Doppler Profiler (ADP) deployments, and historical current moorings. In this paper we use a generalized inverse (GI) approach to compare these data to, and then assimilate them...
Resource Type:: Article
Full Text:: , data, and assimilation Svetlana Y. Erofeeva, Gary D. Egbert, and P. M. Kosro College of Oceanic and

Role of late winter mesoscale events in the biogeochemical variability of the upper water column of the North Pacific Subtropical Gyre

Creator:: Letelier, Ricardo M., Karl, David M., Abbott, Mark R., Flament, P., Freilich, Michael H., Lukas, Roger, and Strub, P. Ted
Abstract:: Continuous records of upper water column (0–150 m) temperature profiles, spectral distribution of downwelling irradiance, and phytoplankton solar-induced fluorescence at 25 m depth were obtained during the inaugural deployment of the Hawaii Air-sea Logging Experiment, A Long-term Oligotrophic Habitat Assessment (HALE ALOHA) mooring, near the Hawaii Ocean Time-series (HOT) Station...
Resource Type:: Article

Surface patterns in temperature, flow, phytoplankton biomass, and species composition in the coastal transition zone of northern California

Creator:: Hood, Raleigh R., Abbott, Mark R., Huyer, Adriana, 1945-, and Kosro, P. Michael, 1951-
Abstract:: Satellite thermal imagery and in situ biological and physical data are presented that describe the spatial variability of phytoplankton biomass and species composition in relation to the physical structure at the sea surface during persistent upwelling off northern California. Surface patterns in temperature, geostrophic velocity, chlorophyll, and particle size structure...
Resource Type:: Article

Horizontal transport and the distribution of nutrients in the coastal transition zone off Northern California: effects on primary production, phytoplankton biomass and species composition

Creator:: Chavez, Francisco P., Barber, Richard T., Kosro, P. Michael, 1951-, Huyer, Adriana, 1945-, Ramp, Steven R., Stanton, Timothy P., and Rojas de Mendiola, Blanca
Abstract:: Conductivity‐temperature‐depth surveys during 1988 encountered strong baroclinic jets that were evident in acoustic Doppler current profiler and hydrographic data. During June and July 1988 a filament with high surface nitrate, high chlorophyll, abundant populations of neritic centric diatoms, and higher rates of primary production was evident perpendicular to the coast...
Resource Type:: Article
Full Text:: FRANCISCO P. CHAVEZ 1, RICHARD T. BARBER 2, P. MICHAEL KOSRO 3, ADRIANA HUYER 3, STEVEN R. RAMP 4, TIMOTHY

ScholarsArchive@OSU

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

cBathy: A robust algorithm for estimating nearshore bathymetry

Observations of near-inertial surface currents off Oregon: Decorrelation time and length scales

Satellite observations of chlorophyll, phytoplankton biomass, and Ekman pumping in nonlinear mesoscale eddies

Evaluation of directly wind-coherent near-inertial surface currents off Oregon using a statistical parameterization and analytical and numerical models

Influence of varying upper ocean stratification on coastal near-inertial currents

Tidal currents on the central Oregon shelf : models, data, and assimilation

Role of late winter mesoscale events in the biogeochemical variability of the upper water column of the North Pacific Subtropical Gyre

Surface patterns in temperature, flow, phytoplankton biomass, and species composition in the coastal transition zone of northern California

Horizontal transport and the distribution of nutrients in the coastal transition zone off Northern California: effects on primary production, phytoplankton biomass and species composition

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