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Full-Text Articles in Physical Sciences and Mathematics

Geology, Geography, And Humans Battle For Dominance Over The Delivery Of Fluvial Sediment To The Coastal Ocean, James P.M. Syvitski, John D. Milliman Jan 2007

Geology, Geography, And Humans Battle For Dominance Over The Delivery Of Fluvial Sediment To The Coastal Ocean, James P.M. Syvitski, John D. Milliman

VIMS Articles

Sediment flux to the coastal zone is conditioned by geomorphic and tectonic influences (basin area and relief), geography (temperature, runoff), geology (lithology, ice cover), and human activities (reservoir trapping, soil erosion). A new model, termed “BQART” in recognition of those factors, accounts for these varied influences. When applied to a database of 488 rivers, the BQART model showed no ensemble over‐ or underprediction, had a bias of just 3% across six orders of magnitude in observational values, and accounted for 96% of the between‐river variation in the long‐term (±30 years) sediment load or yield of these rivers. The geographical range …


What Has Been Learned About Storm Surge Dynamics From Hurricane Isabel Model Simulation?, Harry V. Wang, J. Cho, Jian Shen, Y. P. Wang Jan 2005

What Has Been Learned About Storm Surge Dynamics From Hurricane Isabel Model Simulation?, Harry V. Wang, J. Cho, Jian Shen, Y. P. Wang

VIMS Books and Book Chapters

An unstructured grid hydrodynamic model was used to study storm surge in the Chesapeake Bay during Hurricane Isabel. The model-simulated, storm-induced water level compared reasonably well with the measured data collected around the Bay. Calibrated water level was extracted from the model to further analyze the dynamics of the surge as it formed and propagated along the mainstem Chesapeake. Based on time-series analysis, formation of the surge due to the pumping of coastal waters (hereafter called the primary surge) into the Chesapeake was first identified at the Bay mouth with a peak height of 1.5 m above mean sea level …


Effects Of Hurricanes On Atlantic Croaker (Micropogonias Undulatus) Recruitment To Chesapeake Bay, M. M. Montane, H. M. Austin Jan 2005

Effects Of Hurricanes On Atlantic Croaker (Micropogonias Undulatus) Recruitment To Chesapeake Bay, M. M. Montane, H. M. Austin

VIMS Books and Book Chapters

Few studies have focused on the effects of climatic perturbations, such as hurricanes, on finfish recruitment and behavior. The Virginia Institute of Marine Science (VIMS) Trawl Survey has sampled continuously throughout the Virginia portion of Chesapeake Bay for 50 years. While hurricanes have impacted Chesapeake Bay during this time, three periods of hurricane activity— September and November 1985 (hurricanes Gloria and Juan), September 1989 (Hurricane Hugo), and September 2003 (Hurricane Isabel)—coincided with the largest spikes in juvenile recruitment of Atlantic croaker (Micropogonias undulatus) for half a century. The fall (October–December) croaker young-of-year indices for 1985, 1989, and 2003 were seven, …


Simulation Of Hurricane Isabel Using The Advanced Circulation Model (Adcirc), Jian Shen, W. Gong, Harry V. Wang Jan 2005

Simulation Of Hurricane Isabel Using The Advanced Circulation Model (Adcirc), Jian Shen, W. Gong, Harry V. Wang

VIMS Books and Book Chapters

Hurricane Isabel made landfall near Drum Inlet, about 240 km south of the Chesapeake Bay mouth, on the Outer Banks of North Carolina at 17:00 UTC (GMT 12:00), 18 September 2003. Hurricane Isabel is considered one of the most significant tropical cyclones to affect portions of northeastern North Carolina and east-central Virginia. The ADvanced CIRCulation Model (ADCIRC) model was applied to the Chesapeake Bay to simulate Hurricane Isabel. High-resolution grids were placed inside the Bay and tributaries; coarse grids were placed outside the Bay. The spatial grid resolution in the Bay mainstem is about 200–1000 m and the spatial grid …


Chesapeake Bay Marine Environmental Assessment December 1985 - February 1986, Karen Kelly, Terry L. Bashore, Karen L. Mcdonald Oct 1986

Chesapeake Bay Marine Environmental Assessment December 1985 - February 1986, Karen Kelly, Terry L. Bashore, Karen L. Mcdonald

Reports

No abstract provided.


Vims-Blm Second Order Wave Climate Model And Wave Climatology Of Baltimore Canyon Trough Shelf Area, Victor Goldsmith Jul 1979

Vims-Blm Second Order Wave Climate Model And Wave Climatology Of Baltimore Canyon Trough Shelf Area, Victor Goldsmith

Reports

The Wave Climate Model of the Baltimore Canyon Trough Shelf area encompassing the designated lease blocks was extended, refined, and comparisons made with real wave data, as part of this year's contract (Figures 15-la and 15-lb). This modified model w.as produced to refine the 1975 model so that more definitive statements and interpretations could be concluded, based on more detailed data, in the evaluation of the baseline data. A set of computer-generated graphics utilizing a greater depth data point density (0.25 NM), to al.low site-specific evaluation of conditions within the lease block area, were produced.