Index Catalog // ScholarsArchive@OSU

Impact of tide-topography interactions on basal melting of Larsen C Ice Shelf, Antarctica

Creator:: Mueller, R. D., Padman, L., Dinniman, M. S., Erofeeva, S. Y., Fricker, H. A., and King, M. A.
Abstract:: Basal melting of ice shelves around Antarctica contributes to formation of Antarctic Bottom Water and can affect global sea level by altering the offshore flow of grounded ice streams and glaciers. Tides influence ice shelf basal melt rate (w(b)) by contributing to ocean mixing and mean circulation as well as...
Resource Type:: Article
Full Text:: Shelf, Antarctica R. D. Mueller,1,2 L. Padman,2 M. S. Dinniman,3 S. Y. Erofeeva,1 H. A. Fricker,4 and

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:: predictions via data assimilation of remote sensing observations Wilson, G. W., H. T. Özkan-Haller, R. A

Spectral particulate attenuation and particle size distribution in the bottom boundary layer of a continental shelf

Creator:: Boss, Emmanuel, Pegau, W. Scott, Gardner, Wilford D., Zaneveld, J. Ronald, Barnard, Andrew H., Twardowski, Michael S., Chang, G. C., and Dickey, T. D.
Abstract:: Spectral attenuation and absorption coefficients of particulate matter and collocated hydrographic measurements were obtained in the Mid-Atlantic Bight during the fall of 1996 and the spring of 1997 as part of the Coastal Mixing and Optics experiment. Within the bottom boundary layer (BBL) the magnitude of the beam attenuation decreased...
Resource Type:: Article
Full Text:: . Gardner, 2 J. Ronald V. Zaneveld, • Andrew H. Barnard, • Michael S. Twardowski, • G. C. Chang, 3,4 and T

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:: Fjord, Greenland H. L. Johnson,1 A. Münchow,2 K. K. Falkner,3 and H. Melling4 Received 13 July 2010

Bathymetry correction using an adjoint component of a coupled nearshore wave-circulation model: Tests with synthetic velocity data

Creator:: Kurapov, Alexander L. and Özkan-Haller, H. Tuba
Abstract:: The impact of assimilation of wave-averaged flow velocities on the bathymetric correction is studied in tests with synthetic (model-generated) data using tangent-linear and adjoint components of a one-way coupled nearshore wave-circulation model. Weakly and strongly nonlinear regimes are considered, featuring energetic unsteady along-beach flows responding to time-independent wave-averaged forcing due...
Resource Type:: Article
Full Text:: dependence on h and utilizes both wave and circulation models. [4] Some data assimilation methods [Bennett et

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:: Aug 4 S. H. Lee (personal communication, 2014) 2008 ArcticNet 7 Sep 3 M. Gosselin (personal

Forcing and variability of nonstationary rip currents

Creator:: Long, J. W. and Özkan-Haller, H. Tuba
Abstract:: urface wave transformation and the resulting nearshore circulation along a section of coast with strong alongshore bathymetric gradients outside the surf zone are modeled for a consecutive 4 week time period. The modeled hydrodynamics are compared to in situ measurements of waves and currents collected during the Nearshore Canyon Experiment...
Resource Type:: Article
Full Text:: modeled for a consecutive 4 week time period. The modeled hydrodynamics are compared to in situ

Spatial and temporal variability of absorption by dissolved material at a continental shelf

Creator:: Boss, Emmanuel, Pegau, W. Scott, Zaneveld, J. Ronald, and Barnard, Andrew H.
Abstract:: Optical properties of dissolved (colored dissolved organic material (CDOM)) and particulate matter and hydrographic measurements were obtained at the Mid-Atlantic Bight during the fall of 1996 and the spring of 1997 as part of the Coastal Mixing and Optics experiment. To assess the temporal and spatial variability, time series were...
Resource Type:: Article
Full Text:: shelf Emmanuel Boss, W. Scott Pegau, J. Ron V. Zaneveld, and Andrew H. Barnard College of Ocean and

Quantifying the length-scale dependence of surf zone advection

Creator:: Wilson, Greg W., Özkan-Haller, H. Tuba, and Holman, Robert A.
Abstract:: We investigate the momentum balance in the surf zone, in a setting which is weakly varying in the alongshore direction. Our focus is on the role of nonlinear advective terms. Using numerical experiments, we find that advection tends to counteract alongshore variations in momentum flux, resulting in more uniform kinematics....
Resource Type:: Article
Full Text:: dependence of surf zone advection Greg W. Wilson,1 H. Tuba €Ozkan-Haller,1 and Robert A. Holman1 Received

Error in predicting hydrosol backscattering from remotely sensed reflectance

Creator:: Weidemann, A. D., Stavn, R. H., Zaneveld, J. Ronald, and Wilcox, M. R.
Abstract:: Monte Carlo simulations are carried out to determine the error in the inversion of backscattering from remotely sensed reflectance when geometrical shape factors of the light field are assumed to be unity. The results show that error in backscattering inversion can vary from a 40% overestimation to a 20% underestimation...
Resource Type:: Article
Full Text:: , • R. H. Stavn, • J. R. V. Zaneveld, 3 and M. R. Wilcox 4 Abstract. Monte Carlo simulations are

ScholarsArchive@OSU

Impact of tide-topography interactions on basal melting of Larsen C Ice Shelf, Antarctica

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

Spectral particulate attenuation and particle size distribution in the bottom boundary layer of a continental shelf

Ocean circulation and properties in Petermann Fjord, Greenland

Bathymetry correction using an adjoint component of a coupled nearshore wave-circulation model: Tests with synthetic velocity data

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

Forcing and variability of nonstationary rip currents

Spatial and temporal variability of absorption by dissolved material at a continental shelf

Quantifying the length-scale dependence of surf zone advection

Error in predicting hydrosol backscattering from remotely sensed reflectance

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