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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Multiplatform, Multidisciplinary Investigations Of The Impacts Of Modified Circumpolar Deep Water In The Ross Sea, Antarctica, Walker O. Smith Jr., Kt Goetz, De Kaufman, By Queste, V Asper, Dp Costa, Ms Dinniman, Mam Friedrichs, Et Al
Multiplatform, Multidisciplinary Investigations Of The Impacts Of Modified Circumpolar Deep Water In The Ross Sea, Antarctica, Walker O. Smith Jr., Kt Goetz, De Kaufman, By Queste, V Asper, Dp Costa, Ms Dinniman, Mam Friedrichs, Et Al
VIMS Articles
In 2010-2011, three projects combined to characterize the temporal and spatial distributions of Modified circumpolar Deep Water (MCDW) in the Ross Sea using icebreaker-based sampling, gliders, instrumented seals, and hindcasts from a numerical circulation model. The fieldwork cearly identified MCDW throughout the Ross Sea, and the lata were used to determine its influence on potential heat.md nutrient inputs and biotic distributions. Furthermore, the numerical simulations confirm its apparent trajectory and location. Substantial small-scale variability in oceanographic and biological distributions suggests that such variability may play an important role in biogeochemical cycles. Data from the three projects provide a view of …
The Storm Surge And Sub-Grid Inundation Modeling In New York City During Hurricane Sandy, Harry V. Wang, Jon Derek Loftis, Zhou Liu, David R. Forrest, Yinglong J. Zhang
The Storm Surge And Sub-Grid Inundation Modeling In New York City During Hurricane Sandy, Harry V. Wang, Jon Derek Loftis, Zhou Liu, David R. Forrest, Yinglong J. Zhang
VIMS Articles
Hurricane Sandy inflicted heavy damage in New York City and the New Jersey coast as the second costliest storm in history. A large-scale, unstructured grid storm tide model, Semi-implicit Eulerian Lagrangian Finite Element (SELFE), was used to hindcast water level variation during Hurricane Sandy in the mid-Atlantic portion of the U.S. East Coast. The model was forced by eight tidal constituents at the model’s open boundary, 1500 km away from the coast, and the wind and pressure fields from atmospheric model Regional Atmospheric Modeling System (RAMS) provided by Weatherflow Inc. The comparisons of the modeled storm tide with the NOAA …
Reducing Wave-Induced Microwave Water-Level Measurement Error With A Least Squares-Designed Digital Filter, John D. Boon
Reducing Wave-Induced Microwave Water-Level Measurement Error With A Least Squares-Designed Digital Filter, John D. Boon
VIMS Articles
A microwave water-level sensor, the Design Analysis model H-3611i, will soon enter service at tide stations operated by the National Oceanic and Atmospheric Administration's Center for Operational Oceanographic Products and Services (CO-OPS) as part of the National Water Level Observation Network. CO-OPS tests include a multisensor deployment at the U.S. Army Corps of Engineers Field Research Facility at Duck, North Carolina, to evaluate microwave water-level measurement error over a wide range of Atlantic Ocean sea states. In situ precision and accuracy of processed (6-min average) water level is found to depend on sea state in addition to data processing methods …
Model Behavior And Sensitivity In An Application Of The Cohesive Bed Component Of The Community Sediment Transport Modeling System For The York River Estuary, Va, Usa, Kelsey A. Fall, Courtney K. Harris, Carl T. Friedrichs, J. Paul Rineheimer, Christopher R. Sherwood
Model Behavior And Sensitivity In An Application Of The Cohesive Bed Component Of The Community Sediment Transport Modeling System For The York River Estuary, Va, Usa, Kelsey A. Fall, Courtney K. Harris, Carl T. Friedrichs, J. Paul Rineheimer, Christopher R. Sherwood
VIMS Articles
The Community Sediment Transport Modeling System (CSTMS) cohesive bed sub-model that accounts for erosion, deposition, consolidation, and swelling was implemented in a three-dimensional domain to represent the York River estuary, Virginia. The objectives of this paper are to (1) describe the application of the three-dimensional hydrodynamic York Cohesive Bed Model, (2) compare calculations to observations, and (3) investigate sensitivities of the cohesive bed sub-model to user-defined parameters. Model results for summer 2007 showed good agreement with tidal-phase averaged estimates of sediment concentration, bed stress, and current velocity derived from Acoustic Doppler Velocimeter (ADV) field measurements. An important step in implementing …
A Hydrodynamic And Sediment Transport Model For The Waipaoa Shelf, New Zealand: Sensitivity Of Fluxes To Spatially-Varying Erodibility And Model Nesting, Julia M. Moriarty, Courtney K. Harris, Mark G. Hadfield
A Hydrodynamic And Sediment Transport Model For The Waipaoa Shelf, New Zealand: Sensitivity Of Fluxes To Spatially-Varying Erodibility And Model Nesting, Julia M. Moriarty, Courtney K. Harris, Mark G. Hadfield
VIMS Articles
Numerical models can complement observations in investigations of marine sediment transport and depositional processes. A coupled hydrodynamic and sediment transport model was implemented for the Waipaoa River continental shelf offshore of the North Island of New Zealand, to complement a 13-month field campaign that collected seabed and hydrodynamic measurements. This paper described the formulations used within the model, and analyzed the sensitivity of sediment flux estimates to model nesting and seabed erodibility. Calculations were based on the Regional Ocean Modeling System—Community Sediment Transport Modeling System (ROMS-CSTMS), a primitive equation model using a finite difference solution to the equations for momentum …
Temperature Sensitivity Of Organic-Matter Decay In Tidal Marshes, Matthew L. Kirwan, G. R. Guntenspergen, J. A. Langley
Temperature Sensitivity Of Organic-Matter Decay In Tidal Marshes, Matthew L. Kirwan, G. R. Guntenspergen, J. A. Langley
VIMS Articles
Approximately half of marine carbon sequestration takes place in coastal wetlands, including tidal marshes, where organic matter contributes to soil elevation and ecosystem persistence in the face of sea-level rise. The long-term viability of marshes and their carbon pools depends, in part, on how the balance between productivity and decay responds to climate change. Here, we report the sensitivity of labile soil organic-matter decay in tidal marshes to seasonal and latitudinal variations in temperature measured over a 3-year period. We find a moderate increase in decay rate at warmer temperatures (3-6% per degrees C, Q(10) = 1.3-1.5). Despite the profound …