Index Catalog // ScholarsArchive@OSU

Surf zone bathymetry and circulation predictions via data assimilation of remote sensing observations

Creator:: Wilson, G. W., Özkan-Haller, H. Tuba, Holman, R. A., Haller, M. C., Honegger, D. A., and Chickadel, C. C.
Abstract:: Bathymetry is a major factor in determining nearshore and surf zone wave transformation and currents, yet is often poorly known. This can lead to inaccuracy in numerical model predictions. Here bathymetry is estimated as an uncertain parameter in a data assimilation system, using the ensemble Kalman filter (EnKF). The system...
Resource Type:: Article
Full Text:: Statistics, Comparing 6 September and 15 September Raw Bathymetric Survey Data (Figures 9c and 9d

Location and dynamics of the Antarctic Polar Front from satellite sea surface temperature data

Creator:: Moore, J. Keith, Abbott, Mark R., and Richman, James G.
Abstract:: The location of the Antarctic Polar Front (PF) was mapped over a 7-year period (1987-1993) within images of satellite-deprived sea surface temperature. The mean path of the PF is strongly steered by the topographic features of the Southern Ocean. The topography places vorticity constraints on the dynamics of the PF...
Resource Type:: Article
Full Text:: satellite sea surface temperature data JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 104, NO. C2, PAGES 3059-3073

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:: silicate with respect to nitrate between the first and the last survey. The data were binned and averaged

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:: - sive tests against high-quality survey data from Duck, North Carolina, USA and one survey from Agate

Sea-surface aerodynamic roughness

Creator:: Mahrt, Larry, Vickers, Dean, Fredrickson, Paul, Davidson, Ken, and Smedman, Ann-Sofi
Abstract:: This study surveys and evaluates similarity theory for estimating the sea-surface drag coefficient with the bulk aerodynamic method. The most commonly used formulations of the aerodynamic roughness length, required by similarity theory, are examined using data sets from four different field programs. These relationships include the Charnock formulation and the...
Resource Type:: Article
Full Text:: using data sets from four different field programs. These relationships include the Charnock formulation

Observations of near-inertial waves in acoustic doppler current profiler measurements made during the mixed layer dynamics experiment

Creator:: Chereskin, T. K., Levine, Murray D., Harding, A. J., and Regier, L. A.
Abstract:: Measurements of upper ocean shear made during the Mixed Layer Dynamics Experiment (MILDEX) provide evidence of large horizontal scale motion at near‐inertial frequency. The measurements consist of shipboard acoustic Doppler current profiles. Four large‐scale spatial surveys of 2–4 days duration were made by the R/V Wecoma as a set of...
Resource Type:: Article
Full Text:: relative vorticity of the front. ADCP data collected during the Mixed Layer Dynamics Experiment (MILDEX

Seasonal renewal of the California Current: The spring transition off California

Creator:: Lynn, Ronald J., Bograd, Steven J., Chereskin, Teresa K., and Huyer, Adriana, 1945-
Abstract:: A pair of high-resolution oceanographic surveys in March and April 1995 revealed a large and rapid transition from late winter to spring conditions in the coastal zone off central and southern California. These data are unique in capturing the detailed three-dimensional physical structure of and biological response to the spring...
Resource Type:: Article
Full Text:: California. These data are unique in capturing the detailed three-dimensional physical structure of and

Alongshore currents and mesoscale variability near the shelf edge off northwestern Australia

Creator:: Brink, K. H., Bahr, Frank, and Shearman, R. Kipp
Abstract:: Shelf break conditions and alongshore flow off northwestern Australia are studied during the strongly evaporative conditions of austral winter 2003. Present results, along with those of previous authors, confirm that a poleward, fresh Leeuwin current core is normally found near the shelf break. Salinity increases alongshore toward the southwest. Although...
Resource Type:: Article
Full Text:: three-line CTD survey to establish the context over 100 s of km and to depths greater than the 200 m

Offshore wind forcing in the Gulf of Tehuantepec, Mexico: the asymmetric circulation

Creator:: Trasviña, A., Barton, E.D., Brown, J., Velez, H.S., Kosro, P. Michael, 1951-, and Smith, Robert L. (Robert Lloyd), 1935-
Abstract:: Since the early surveys carried out by the Eastern Tropical Pacific (EASTROPIC) and Scripps Tuna Oceanographic Research (STOR) projects in the tropical Pacific off Mexico, the northerly winds which blow over the Gulf of Tehuantepec were described as an Important factor controlling the dynamics of this coastal ocean. In January-February...
Resource Type:: Article
Full Text:: the pages that follow, data gathered during the experiment Tehuano of January-February 1989 are used

Ocean circulation and properties in Petermann Fjord, Greenland

Creator:: Johnson, H. L., Münchow, A., Falkner, K. K., and Melling, H.
Abstract:: The floating ice shelf of Petermann glacier interacts directly with the ocean and is thought to lose at least 80% of its mass through basal melting. Based on three opportunistic ocean surveys in Petermann Fjord we describe the basic oceanography: the circulation at the fjord mouth, the hydrographic structure beneath...
Resource Type:: Article
Full Text:: data. 6. Surface Survey [31] On 20 August 2009 a towed CTD survey was con- ducted across Petermann

ScholarsArchive@OSU

Surf zone bathymetry and circulation predictions via data assimilation of remote sensing observations

Location and dynamics of the Antarctic Polar Front from satellite sea surface temperature data

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

cBathy: A robust algorithm for estimating nearshore bathymetry

Sea-surface aerodynamic roughness

Observations of near-inertial waves in acoustic doppler current profiler measurements made during the mixed layer dynamics experiment

Seasonal renewal of the California Current: The spring transition off California

Alongshore currents and mesoscale variability near the shelf edge off northwestern Australia

Offshore wind forcing in the Gulf of Tehuantepec, Mexico: the asymmetric circulation

Ocean circulation and properties in Petermann Fjord, Greenland

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