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Physical Sciences and Mathematics Commons™
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- Physical Sciences Peer-Reviewed Articles (6)
- Biological Sciences Peer-Reviewed Articles (4)
- CCRM Peer Reviewed Articles (1)
- Cohesive sediment; critical stress; sediment transport modeling; erodibility; settling velocity (1)
- Filtering techniques; Quality assurance/control; Microwave observations; Instrumentation/sensors (1)
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- Growth rate · Ross Sea · Phytoplankton · Dilution method · 14C · Temperature (1)
- Hurricane Sandy; storm surge; inundation; sub-grid modeling (1)
- Krill; Euphausia superba; Silverfish; Myctophid; Lipid content (1)
- Numerical modeling; sediment transport; erodibility; model nesting; Waipaoa shelf; New Zealand (1)
- Oceanography (1)
- SEA-LEVEL RISE; SALT-MARSH; SOIL RESPIRATION; COASTAL WETLANDS; CLIMATE-CHANGE; CARBON ACCUMULATION; SPARTINA-PATENS; DECOMPOSITION; CO2; PLANT (1)
- Salps; Thaliacea; Jellyfish blooms; Gelatinous zooplankton; Mesoscale eddies (1)
Articles 1 - 9 of 9
Full-Text Articles in Physical Sciences and Mathematics
Regional Differences In Quality Of Krill And Fish As Prey Along The Western Antarctic Peninsula, Kate E. Ruck, Deborah K. Steinberg, Elizabeth A. Canuel
Regional Differences In Quality Of Krill And Fish As Prey Along The Western Antarctic Peninsula, Kate E. Ruck, Deborah K. Steinberg, Elizabeth A. Canuel
VIMS Articles
The warming trend in the northern part of the Western Antarctic Peninsula (WAP) has led to a decrease in perennial and summer sea ice, an increase in heat content over the shelf, and lower phytoplankton biomass, which could affect the prey quality of krill and fish that are utilized by apex predators. We compared prey quality metrics, including elemental (C, N) content; total, neutral, and polar lipid content; and energy densities of known penguin prey items including krill (Euphausia superba, Thysanoessa macrura, and E. crystallorophias) and fish (silverfish Pleuragramma antarcticum and the myctophid Electrona antarctica) …
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 …
Phytoplankton Growth Rates In The Ross Sea, Antarctica, Anna F. Mosby, Walker O. Smith Jr.
Phytoplankton Growth Rates In The Ross Sea, Antarctica, Anna F. Mosby, Walker O. Smith Jr.
VIMS Articles
The Ross Sea is a highly productive region of the Southern Ocean, but phytoplankton growth rates there are poorly constrained. Variability in growth rates was investigated on a January−February 2012 cruise to the Ross Sea using 37 14C isotopic tracer incubations and 11 dilution experiments. We examined the effects of extended incubations on measured growth rates in 14C incubations, quantified phytoplankton growth and grazing mortality rates through dilution experiments, and analyzed the effects of irradiance on carbon:chlorophyll ratios in dilution experiments. Growth rates in 14C incubations ranged from 0.03 to 0.85 d−1. We found that chlorophyllbased phytoplankton growth rates in …
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 …
Long-Term Time-Series Study Of Salp Population Dynamics In The Sargasso Sea, Joshua P. Stone, Deborah K. Steinberg
Long-Term Time-Series Study Of Salp Population Dynamics In The Sargasso Sea, Joshua P. Stone, Deborah K. Steinberg
VIMS Articles
Salps are bloom-forming, pelagic tunicates with high grazing rates on phytoplankton, with the potential to greatly increase vertical particle flux through rapidly sinking fecal pellets. However, the frequency and causes of salp blooms are not well known. We quantified salps from day and night zooplankton net tows in the epipelagic zone of the North Atlantic subtropical gyre as part of the Bermuda Atlantic Time-series Study (BATS). Salp species and size were quantified in biweekly to monthly tows from April 1994 to November 2011. Twenty-one species of salps occurred at the BATS site over this time period, and the most common …
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 …