Index Catalog // ScholarsArchive@OSU

The front on the Northern Flank of Georges Bank in spring : 2. Cross-frontal fluxes and mixing

Creator:: Ullman, David S., Dale, Andrew C., Hebert, Dave, and Barth, John A.
Abstract:: Hydrographic observations made with an undulating vehicle carrying a CTD and concurrent shipboard ADCP velocity observations over a 12‐day period are combined to investigate vertical mixing and cross‐frontal fluxes on the Northern Flank of Georges Bank. The CTD density time series is analyzed to detect the presence of vertical overturns,...
Resource Type:: Article
Full Text:: spring: 2. Cross-frontal fluxes and mixing David S. Ullman,1 Andrew C. Dale,2 Dave Hebert,1 and John A

Effects of stencil width on surface ocean geostrophic velocity and vorticity estimation from gridded satellite altimeter data

Creator:: Arbic, Brian K., Scott, Robert B., Chelton, Dudley B., Richman, James G., and Shriver, Jay F.
Abstract:: This paper examines the effect of “stencil width” on surface ocean geostrophic velocity and vorticity estimated from differentiating gridded satellite altimeter sea surface height products. In oceanographic applications, the value of the first derivative at a central grid point is generally obtained by differencing the sea surface heights at adjacent...
Resource Type:: Article
Full Text:: ocean geostrophic velocity and vorticity estimation from gridded satellite altimeter data Brian K

An assessment of phytoplankton primary productivity in the Arctic Ocean from satellite ocean color/in situ chlorophyll-a based models

Creator:: Lee, Younjoo J., Matrai, Patricia A., Friedrichs, Marjorie A. M., Saba, Vincent S., Antoine, David, Ardyna, Mathieu, Asanuma, Ichio, Babin, Marcel, Bélanger, Simon, Benoît‐Gagné, Maxime, Devred, Emmanuel, Fernández‐Méndez, Mar, Gentili, Bernard, Hirawake, Toru, Kang, Sung‐Ho, Kameda, Takahiko, Katlein, Christian, Lee, Sang H., Lee, Zhongping, Mélin, Frédéric, Scardi, Michele, Smyth, Tim J., Tang, Shilin, Turpie, Kevin R., Waters, Kirk J., and Westberry, Toby K.
Abstract:: We investigated 32 net primary productivity (NPP) models by assessing skills to reproduce integrated NPP in the Arctic Ocean. The models were provided with two sources each of surface chlorophyll-a concentration (chlorophyll), photosynthetically available radiation (PAR), sea surface temperature (SST), and mixed-layer depth (MLD). The models were most sensitive to...
Resource Type:: Article
Full Text:: ., ... & Westberry, T. K. (2015). An assessment of phytoplankton primary productivity in the Arctic Ocean from

Phenology of particle size distributions and primary productivity in the North Pacific subtropical gyre (Station ALOHA)

Creator:: White, Angelicque E., Letelier, Ricardo M., Whitmire, Amanda L., Barone, Benedetto, Bidigare, Robert R., Church, Matthew J., and Karl, David M.
Abstract:: The particle size distribution (PSD) is a critical aspect of the oceanic ecosystem. Local variability in the PSD can be indicative of shifts in microbial community structure and reveal patterns in cell growth and loss. The PSD also plays a central role in particle export by influencing settling speed. Satellite-based...
Resource Type:: Article
Full Text:: , Amanda L. Whitmire2, Benedetto Barone3, Robert R. Bidigare3, Matthew J. Church3, and David M. Karl3

Particle distributions and dynamics in the euphotic zone of the North Pacific Subtropical Gyre

Creator:: Barone, Benedetto, Bidigare, Robert R., Church, Matthew J., Karl, David M., Letelier, Ricardo M., and White, Angelicque E.
Abstract:: During the summer of 2012, we used laser diffractometry to investigate the temporal and vertical variability of the particle size spectrum (1.25–100 µm in equivalent diameter) in the euphotic zone of the North Pacific Subtropical Gyre. Particles measured with this optical method accounted for ∼40% of the particulate carbon stocks...
Resource Type:: Article
Full Text:: , Matthew J. Church1,2, David M. Karl1,2, Ricardo M. Letelier1,3, and Angelicque E. White1,3 1Daniel K

An interlaboratory comparison of techniques for extracting and analyzing trapped gases in ice cores

Creator:: Sowers, Todd, Brook, Edward J., Etheridge, David, Blunier, Thomas, Fuchs, Andreas, Leuenberger, Markus, Chappellaz, Jerome, Barnola, Jean Marc, Wahlen, Martin, Deck, Bruce, and Weyhenmeyer, Connie
Abstract:: We undertook an interlaboratory comparison of techniques used to extract and analyze trapped gases in ice cores. The intercomparison included analyses of standard reference gases and samples of ice from the Greenland Ice Sheet Project 2 (GISP2) site. Concentrations of CO₂, CH₄, the δ¹⁸O of O₂, the δ¹⁵N of N₂,...
Resource Type:: Article
Full Text:: trapped gases in ice cores Todd Sowers 1, Ed Brook 2,3, David Etheridge 4, Thomas Blunier 5, Andreas

Energy and heat fluxes due to vertically propagating Yanai waves observed in the equatorial Indian Ocean

Creator:: Smyth, W. D., Durland, T. S., and Moum, J. N.
Abstract:: Shipboard current measurements in the equatorial Indian Ocean in October and November of 2011 revealed oscillations in the meridional velocity with amplitude ~0.10 m/s. These were clearest in a layer extending from ~300 to 600 m depth and had periods near 3 weeks. Phase propagation was upward. Measurements from two...
Resource Type:: Article
Full Text:: wave type, we locate the observed oscillation on the nondimensional wave number plane k�2 m� (Figure 4

The dynamics of pressure and form drag on a sloping headland: Internal waves versus eddies

Creator:: Warner, Sally J. and MacCready, Parker
Abstract:: Topographically generated eddies and internal waves have traditionally been studied separately even though bathymetry that creates both phenomena is abundant in coastal regions. Here a numerical model is used to understand the dynamics of eddy and wave generation as tidal currents flow past Three Tree Point, a 1 km long,...
Resource Type:: Article
Full Text:: to be the k–� version of the generic length scale mixing formulation [Umlauf and Burchard, 2003] with

Internal hydraulic flows on the continental shelf: High drag states over a small bank

Creator:: Nash, Jonathan D. and Moum, James N.
Abstract:: Observations of currents, hydrography, and turbulence provide unambiguous evidence for hydraulic control of flow over an isolated three-dimensional topographic feature on Oregon’s continental shelf. The flow becomes critical at the crest of the bank, forming a strong supercritical downslope flow in the lower layer. Farther downstream, internal hydraulic jumps form...
Resource Type:: Article
Full Text:: ., 1996]. Microstruc- ture estimates of the vertical eddy diffusivity K•, on the shelf are similar to

Subtidal inner-shelf circulation near Point Conception, California

Creator:: Cudaback, Cynthia N., Washburn, Libe, and Dever, Edward P.
Abstract:: We discuss connections between inner‐shelf and mid‐shelf circulation near Point Conception, California, as well as the wind forcing of inner‐shelf circulation. Point Conception marks the southern edge of a major upwelling zone that extends from Oregon to central California. The coastline makes a sharp eastward turn at Point Conception, and...
Resource Type:: Article
Full Text:: Studies of Coastal Oceans funded primarily by the Gordon and Betty Moore Foundation and David and Lucile

ScholarsArchive@OSU

The front on the Northern Flank of Georges Bank in spring : 2. Cross-frontal fluxes and mixing

Effects of stencil width on surface ocean geostrophic velocity and vorticity estimation from gridded satellite altimeter data

An assessment of phytoplankton primary productivity in the Arctic Ocean from satellite ocean color/in situ chlorophyll-a based models

Phenology of particle size distributions and primary productivity in the North Pacific subtropical gyre (Station ALOHA)

Particle distributions and dynamics in the euphotic zone of the North Pacific Subtropical Gyre

An interlaboratory comparison of techniques for extracting and analyzing trapped gases in ice cores

Energy and heat fluxes due to vertically propagating Yanai waves observed in the equatorial Indian Ocean

The dynamics of pressure and form drag on a sloping headland: Internal waves versus eddies

Internal hydraulic flows on the continental shelf: High drag states over a small bank

Subtidal inner-shelf circulation near Point Conception, California

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