Index Catalog // ScholarsArchive@OSU

Assimilation of moored velocity data in a model of coastal wind-driven circulation off Oregon: Multivariate capabilities

Creator:: Kurapov, Alexander, Allen, John S., Egbert, Gary D., Miller, Robert N., Kosro, P. Michael, Levine, Murray D., and Barth, John A.
Abstract:: Horizontal current measurements from an array of moored acoustic Doppler profilers are assimilated sequentially into a model of coastal wind-driven circulation off Oregon during the upwelling season of May–August 2001. Model results are compared against independent moored and ship survey data to document a positive effect of velocity data assimilation...
Resource Type:: Article
Full Text:: by 5 days with no wind. As a result of this 15 day initialization, the velocity and density fields

A behavior‐oriented dynamic model for sandbar migration and 2DH evolution

Creator:: Splinter, Kristen D., Holman, Robert A., and Plant, Nathaniel G.
Abstract:: A nonlinear model is developed to study the time‐dependent relationship between the alongshore variability of a sandbar, a(t), and alongshore‐averaged sandbar position, xc(t). Sediment transport equations are derived from energetics‐based formulations. A link between this continuous physical representation and a parametric form describing the migration of sandbars of constant shape...
Resource Type:: Article
Full Text:: ) are shown. SPLINTER ET AL.: THE 2DH SAND BAR DYNAMICS C01020C01020 11 of 21 no change at all. The

Evaporative dense water formation and cross‐shelf exchange over the northwest Australian inner shelf

Creator:: Shearman, R. Kipp and Brink, Kenneth H.
Abstract:: High‐resolution surveys of oceanographic and atmospheric conditions made during the winter over the inner shelf off northwest Australia are used to examine the coastal ocean response to large outgoing heat and freshwater fluxes. Relatively cool, low‐humidity air blows off the Australian continent out over the tropical continental shelf, resulting in...
Resource Type:: Article
Full Text:: ; published 29 June 2010. [1] High‐resolution surveys of oceanographic and atmospheric conditions made during

Seasonal dynamics of the near-surface alongshore flow off central Chile

Creator:: Aguirre, Catalina, Pizarro, Oscar, Strub, Paul T., Garreaud, Rene, and Barth, John A.
Abstract:: The seasonal cycle of the near-surface circulation off central Chile was analyzed using satellite altimetry and an oceanic model. To evaluate the role of the wind stress curl on the circulation we performed two identical simulations except for the wind-forcing: the "control run" used long-term monthly mean wind stress and...
Resource Type:: Article
Full Text:: , oblique radiation con- ditions are used to estimate the direction of information flux in order to treat

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:: Eltanin Fracture Zone System JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 93, NO. B4, PAGES 3051-3077, APRIL 10

Petrology and Geochemistry of the Galápagos Islands : portrait of a pathological mantle plume

Creator:: White, William M., McBirney, Alexander R., and Duncan, Robert A.
Abstract:: We report new major element, trace element, isotope ratio, and geochronological data on the Galapagos Archipelago. Magmas erupted from the large western volcanos are generally moderately fractionated tholeiites of uniform composition; those erupted on other islands are compositionally diverse, ranging from tholeiites to picritic basanitoids. While these volcanoes do not...
Resource Type:: Article
Full Text:: : Portrait of a Pathological Mantle Plume JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 98, NO. Bll, PAGES 19,533

Diurnal heat balance for the northern Monterey Bay inner shelf

Creator:: S. H. Suanda, S. H., Barth, J. A., and Woodson, C. B.
Abstract:: In the summer of 2007, physical measurements including velocity from acoustic Doppler current profilers, surface gravity wave heights measured acoustically, and temperature from thermistor chain arrays were collected along- and across- the mid to inner shelf (water depths from 10–60 m) in northern Monterey Bay. The oceanic response to a...
Resource Type:: Article
Full Text:: ‐circular bay situated in central California. Like much of the west coast of North America, the regional

Effects of mesoscale processes on phytoplankton chlorophyll off Baja California

Creator:: T. Leticia Espinosa-Carreon, T. Leticia, Gaxiola-Castro, Gilberto, Beier, Emilio, Strub, P. Ted, and Kurczyn, J. A.
Abstract:: Using satellite sea surface height (SSH) and chlorophyll (CHL), the year 2000 is analyzed to characterize the effects of mesoscale circulation patterns on phytoplankton spatial variability in the California Current (CC) off Baja California. Satellite data are combined with and compared to in situ field measurements (chlorophyll-a and hydrographic variables)...
Resource Type:: Article
Full Text:: of an anticy- clonic eddy situated �29.0�N–116.5�W in January that moved to �29�N–118�W in April and

Crustal fissuring on the crest of the southern East Pacific Rise at 17°15′–40′S

Creator:: Wright, Dawn J., Haymon, Rachel M., White, Scott M., and Macdonald, Ken C.
Abstract:: Fissure densities and widths have been mapped along the axial zone of the superfast spreading southern East Pacific Rise (EPR) at 17°15′–40′S with the near-bottom DSL-120 and Argo II imaging systems. We observe that the youngest lava flows (on a relative age scale) are sparsely fissured and that there is...
Resource Type:: Article
Full Text:: 13�100N). No further studies focusing primarily on fissures were performed on any part of the MOR

A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis

Creator:: Schaefer, Kevin, Schwalm, Christopher R., Williams, Chris, Arain, M. Altaf, Barr, Alan, Chen, Jing M., Davis, Kenneth J., Dimitrov, Dimitre, Hilton, Timothy W., Hollinger, David Y., Humphreys, Elyn, Poulter, Benjamin, Raczka, Brett M., Richardson, Andrew D., Sahoo, Alok, Thornton, Peter, Vargas, Rodrigo, Verbeeck, Hans, Anderson, Ryan, Baker, Ian, Black, T. Andrew, Bolstad, Paul, Chen, Jiquan, Curtis, Peter S., Desai, Ankur R., Dietze, Michael, Dragoni, Danilo, Gough, Christopher, Grant, Robert F., Gu, Lianhong, Jain, Atul, Kucharik, Chris, Law, Beverly, Liu, Shuguang, Lokipitiya, Erandathie, Margolis, Hank A., Matamala, Roser, McCaughey, J. Harry, Monson, Russ, Munger, J. William, Oechel, Walter, Peng, Changhui, Price, David T., Ricciuto, Dan, Riley, William J., Roulet, Nigel, Tian, Hanqin, Tonitto, Christina, Torn, Margaret, Weng, Ensheng, and Zhou, Xiaolu
Abstract:: Accurately simulating gross primary productivity (GPP) in terrestrial ecosystem models is critical because errors in simulated GPP propagate through the model to introduce additional errors in simulated biomass and other fluxes. We evaluated simulated, daily average GPP from 26 models against estimated GPP at 39 eddy covariance flux tower sites...
Resource Type:: Article
Full Text:: uncertainty. Variations of X2 within this target range have no meaning relative to model performance. A model

ScholarsArchive@OSU

Assimilation of moored velocity data in a model of coastal wind-driven circulation off Oregon: Multivariate capabilities

A behavior‐oriented dynamic model for sandbar migration and 2DH evolution

Evaporative dense water formation and cross‐shelf exchange over the northwest Australian inner shelf

Seasonal dynamics of the near-surface alongshore flow off central Chile

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

Petrology and Geochemistry of the Galápagos Islands : portrait of a pathological mantle plume

Diurnal heat balance for the northern Monterey Bay inner shelf

Effects of mesoscale processes on phytoplankton chlorophyll off Baja California

Crustal fissuring on the crest of the southern East Pacific Rise at 17°15′–40′S

A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis

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