Physical Sciences and Mathematics Commons^™

Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 2010-2014 Progress Report, 1 September 2012 - 31 August 2013, Philip W. Sadler, Matthew W. Smith, John M. Hoenig, Shelley E. Sullivan, Robert E. Harris, Lydia M. Goins

Reports

This report presents the results of striped bass (Morone saxatilis) tagging and monitoring activities in Virginia during the period 1 September 2012 through 31 August 2013. It includes an assessment of the biological characteristics of striped bass taken from the 2013 spring spawning run, estimates of annual survival and fishing mortality based on annual spring tagging, and the results of the study that documents the prevalence of mycobacterial infections of striped bass in Chesapeake Bay. The information contained in this report is required by the Atlantic States Marine Fisheries Commission and is used to implement a coordinated management plan for …

Inferring Tidal Wetland Stability From Channel Sediment Fluxes: Observations And A Conceptual Model, Nk Ganju, Nj Nidzieko, Matthew L. Kirwan

VIMS Articles

Anthropogenic and climatic forces have modified the geomorphology of tidal wetlands over a range of timescales. Changes in land use, sediment supply, river flow, storminess, and sea level alter the layout of tidal channels, intertidal flats, and marsh plains; these elements define wetland complexes. Diagnostically, measurements of net sediment fluxes through tidal channels are high-temporal resolution, spatially integrated quantities that indicate (1) whether a complex is stable over seasonal timescales and (2) what mechanisms are leading to that state. We estimated sediment fluxes through tidal channels draining wetland complexes on the Blackwater and Transquaking Rivers, Maryland, USA. While the Blackwater …

Introduction To Special Section On The U.S. Ioos Coastal And Ocean Modeling Testbed, Richard A. Luettich Jr, L. Donelson Wright, Richard Signell, Carl T. Friedrichs, Marjorie A.M. Friedrichs, John Harding, Katja Fennel, Eoin Howlett, Sara Graves, Elizabeth Smith, Gary Crane, Rebecca Baltes

VIMS Articles

Strong and strategic collaborations among experts from academia, federal operational centers, and industry have been forged to create a U.S. IOOS Coastal and Ocean Modeling Testbed (COMT). The COMT mission is to accelerate the transition of scientific and technical advances from the coastal and ocean modeling research community to improved operational ocean products and services. This is achieved via the evaluation of existing technology or the development of new technology depending on the status of technology within the research community. The initial phase of the COMT has addressed three coastal and ocean prediction challenges of great societal importance: estuarine hypoxia …

Skill Assessment Of Multiple Models In The Chesapeake Bay, I. D. Irby, M. Friedrichs, C. Feng, C. Friedrichs

Presentations

No abstract provided.

Comparison Of Hydrodynamic And Water Quality Models Of The Chesapeake Bay: Results Of The Ioos Coastal Ocean Modeling Testbed, I Irby, M. Friedrichs, C. Feng, R. Hood

Presentations

No abstract provided.

Skill Assessment Of Multiple Models In The Chesapeake Bay, I. D. Irby, M. Friedrichs, C. Feng, R. Hood

Presentations

No abstract provided.

Reworking Of Flood Deposits On The Waipaoa Shelf, New Zealand: Buoyant And Gravity-Driven Fluxes, J. M. Moriarty, Courtney K. Harris, Carl T. Friedrichs, M. G. Hadfield

Presentations

No abstract provided.

York County, Virginia Shoreline Inventory Report Methods And Guidelines, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Carl Hershner, Kory Angstadt, David Stanhope, David Weiss, Karen Duhring, Christine Tombleson

Reports

The data inventory developed for the Shoreline Inventory is based on a three tiered shoreline assessment approach. In most cases this assessment characterizes conditions that can be observed from a small boat navigating along the shoreline. The three tiered shoreline assessment approach divides the shorezone into three regions: 1) the immediate riparian zone, evaluated for land use; 2) the bank, evaluated for height, stability, cover and natural protection; and 3) the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes.

The 2009 Inventory for York County was updated using on-screen, digitizing techniques in ArcMap v10.0 while …

Us Ioos Coastal And Ocean Modeling Testbed: Inter-Model Evaluation Of Tides, Waves, And Hurricane Surge In The Gulf Of Mexico, Pc Kerr, As Donahue, Jj Westerliink, Ra Luettich, Ly Zheng, Rh Weisberg, Y Huang, Harry V. Wang, Y Teng, David R. Forrest, Et Al

VIMS Articles

A Gulf of Mexico performance evaluation and comparison of coastal circulation and wave models was executed through harmonic analyses of tidal simulations, hindcasts of Hurricane Ike (2008) and Rita (2005), and a benchmarking study. Three unstructured coastal circulation models (ADCIRC, FVCOM, and SELFE) validated with similar skill on a new common Gulf scale mesh (ULLR) with identical frictional parameterization and forcing for the tidal validation and hurricane hindcasts. Coupled circulation and wave models, SWAN+ADCIRC and WWMII+SELFE, along with FVCOM loosely coupled with SWAN, also validated with similar skill. NOAA's official operational forecast storm surge model (SLOSH) was implemented on local …

Charles City County, Virginia Shoreline Inventory Report Methods And Guidelines, Marcia Berman, Julie G. Bradshaw, Carl Hershner, Sharon Killeen, Karinna Nunez, Tamia Rudnicky, Kory Angstadt

Reports

The data inventory developed for the Shoreline Inventory is based on a three tiered shoreline assessment approach. In most cases this assessment characterizes conditions that can be observed from a small boat navigating along the shoreline. The three tiered shoreline assessment approach divides the shorezone into three regions:

1) the immediate riparian zone, evaluated for land use; 2) the bank, evaluated for height, stability, cover and natural protection; and 3) the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes. GPS registered videography was used to collect data on conditions observed in the field.

Three GIS …

City Of Suffolk, Virginia Shoreline Inventory Report Methods And Guidelines, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Kory Angstadt, David Weiss, Carl Hershner

Reports

The data inventory developed for the Shoreline Inventory is based on a three tiered shoreline assessment approach. In most cases this assessment characterizes conditions that can be observed from a small boat navigating along the shoreline. The three tiered shoreline assessment approach divides the shorezone into three regions:

1) the immediate riparian zone, evaluated for land use; 2) the bank, evaluated for height, stability, cover and natural protection; and 3) the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes. GPS registered videography was used to collect data on conditions observed in the field.

Three GIS …

Development Of A Coastal Resources Certificate Program For Marine Contractors & Consultants, Karen Duhring, Julie Bradshaw

Reports

The Center for Coastal Resources Management at VIMS has been engaged with continuing education and training for a mixed audience over the past 35 years. Marine contractors and consultants play an important role in the evolving field of tidal shoreline management. This Creative Adaptation Fund project investigated the unique training needs of this private sector audience and attempted to define the best format and delivery for a Coastal Resources Certificate Program. It was determined that training needs for shoreline professionals can be met with a multi‐day short course that includes both classroom and field settings. This private sector audience expressed …

Use Of Guidance To Preserve And Protect Wetlands, Center For Coastal Resources Management, Virginia Institute Of Marine Science

Reports

Rivers & Coast is a periodic publication of the Center for Coastal Resources Management, Virginia Institute of Marine Science. The goal of Rivers & Coast is to keep readers well informed of current scientific understanding behind key environmental issues related to watershed rivers and coastal ecosystems of the Chesapeake Bay.

Dune Monitoring Data Update Summary: 2013, Donna A. Milligan, C. Scott Hardaway Jr., George R. Thomas

Reports

The Shoreline Studies Program at VIMS established a beach and dune monitoring program for nine sites around the Virginia portion of Chesapeake Bay (Milligan et al., 2005). These sites were monitored twice yearly for four years (2001-2004). In addition to three years of relatively calm conditions, these data included the impact of Hurricane Isabel, a nearly 100-yr event, on the Bay’s shorelines. The shoreline’s change due to the storm and their subsequent short-term recovery was documented by this data. Since the end of the monitoring program other events have impacted Chesapeake Bay shorelines. In order to document the longer-term recovery …

Surface Ocean Pco(2) Seasonality And Sea-Air Co2 Flux Estimates For The North American East Coast, Sr Signorini, A Mannino, Rg Najjar, Marjorie A.M. Friedrichs, Et Al

VIMS Articles

Underway and in situ observations of surface ocean pCO(2), combined with satellite data, were used to develop pCO(2) regional algorithms to analyze the seasonal and interannual variability of surface ocean pCO(2) and sea-air CO2 flux for five physically and biologically distinct regions of the eastern North American continental shelf: the South Atlantic Bight (SAB), the Mid-Atlantic Bight (MAB), the Gulf of Maine (GoM), Nantucket Shoals and Georges Bank (NS+GB), and the Scotian Shelf (SS). Temperature and dissolved inorganic carbon variability are the most influential factors driving the seasonality of pCO(2). Estimates of the sea-air CO2 flux were derived from the …

West Antarctic Peninsula: An Ice-Dependent Coastal Marine Ecosystem In Transition, Hugh Ducklow, William R. Fraser, Michael P. Meredith, Sharon E. Stammerjohn, Scott C. Doney, Douglas G. Martinson, Sevrine F. Sailley, Oscar M. Schofield, Deborah K. Steinberg, Hugh Venables, Charles Amsler

VIMS Articles

The extent, duration, and seasonality of sea ice and glacial discharge strongly influence Antarctic marine ecosystems. Most organisms' life cycles in this region are attuned to ice seasonality The annual retreat and melting of sea ice in the austral spring stratifies the upper ocean, triggering large phytoplankton blooms. The magnitude of the blooms is proportional to the winter extent of ice cover, which can act as a barrier to wind mixing. Antarctic krill, one of the most abundant metazoan populations on Earth, consume phytoplankton blooms dominated by large diatoms. Krill, in turn, support a large biomass of predators, including penguins, …

Shoreline Evolution: Northampton County, Virginia Chesapeake Bay Shoreline 2013, Donna A. Milligan, Christine A. Wilcox, C. Scott Hardaway Jr.

Reports

Northampton County is situated along Virginia’s Eastern Shore (Figure 1). Because the County’s shoreline is continually changing, determining where the shoreline was in the past, how far and how fast it is moving, and what factors drive shoreline change will help define the shoreline’s future movement. These rates and patterns of shore change along Chesapeake Bay’s estuarine shores will differ through time as winds, waves, tides and currents shape and modify coastlines by eroding, transporting and depositing sediments. The purpose of this report is to document how the Chesapeake Bay shoreline of Northampton County has evolved since 1938. Aerial imagery …

Spatial Interferences Of Photodetachment Near A Repulsive Center, B. C. Yang, John B. Delos, M. L. Du

Arts & Sciences Articles

We study the detached-electron flux distributions from the photodetachment of electrons from a negative ion near a repulsive center. Using a semiclassical approach, we calculate the electron flux on spherical detectors with various radii. The classically allowed angular range of the interference patterns on the spherical screen increases as the detached-electron energy is increased. In the classically allowed range, we find that there are always two trajectories going from the negative ion to the observation point on the screen, inducing quantum interference patterns. We have also extended the formulas into the tunneling region. The interference patterns also reflect the quantum …

Applications Of Acoustics And Optics For The Characterization Of Suspended Particulate Matter Within An Estuarine Observing System, G. M. Cartwright

Presentations

No abstract provided.

Combining Observations And Models To Improve Estimates Of Chesapeake Bay Hypoxic Volume, A. J. Bever, M. A.M. Friedrichs, C. T. Friedrichs, M. E. Scully

Presentations

No abstract provided.

Virginia Game Fish Tagging Program Annual Report 2012, Susanna Musick, Lewis Gillingham

Reports

Through 2012, the Virginia Game Fish Tagging Program has maintained a 18-year database of records for tagged and recaptured fish. The program is a cooperative project of the Virginia Saltwater Fishing Tournament (under the Virginia Marine Resources Commission-VMRC) and the Virginia Institute of Marine Science (VIMS) of the College of William and Mary (under the VIMS Marine Advisory Program).

Monitoring Relative Abundance Of American Shad In Virginia Rivers 2012 Annual Report, Eric J. Hilton, Rob Latour, Brian Watkins, Ashleigh Magee

Reports

Concern about the decline in landings of American shad (Alosa sapidissima) along the Atlantic coast prompted the development of an interstate fisheries management plan (FMP) under the auspices of the Atlantic States Marine Fisheries Management Program (ASMFC 1999). Legislation enables imposition of federal sanctions on fishing in those states that fail to comply with the FMP. To be in compliance, coastal states are required to implement and maintain fishery-dependent and fishery-independent monitoring programs as specified by the FMP. For Virginia, these requirements include spawning stock assessments, the collection of biological data on the spawning run (e.g., age-structure, sex ratio, and …

Progress Of Regional Oceanography Study Associated With Western Boundary Current In The South China Sea, Dongxiao Wang, Qinyan Liu, Qiang Xie, Zhigang He, Wei Zhuang, Yeqiang Shu, Xianjun Xiao, Bo Hong, Xiangyu Wu, Dandan Sui

VIMS Articles

Recent progress of physical oceanography in the South China Sea (SCS) associated with the western boundary current (WBC) and eddies is reviewed in this paper. It includes Argo observations of the WBC, eddy detection in the WBC based on satellite images, cross-continental shelf exchange in the WBC, eddy-current interaction, interannual variability of the WBC, air-sea interaction, the SCS throughflow (SCSTF), among others. The WBC in the SCS is strong, and its structure, variability and dynamic processes on seasonal and interannual time scales are yet to be fully understood. In this paper, we summarize progresses on the variability of the WBC, …

Rehoboth Bay, Delaware Shoreline Inventory Report Methods And Guidelines, Marcia Berman, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Kory Angstadt, Tamia Rudnicky, Dan Schatt, David Stanhope

Reports

Shoreline Situation Reports (SSR) were first generated by VIMS in the 1970's to report the condition and status of the shore lands. The SSR series were published in hardcopy on a county by county basis for each of the Tidewater Virginia localities. The reports were intended to assist planners, managers, and regulators in decisions pertaining to management of coastal areas and natural resources therein. This is the first Shoreline Inventory Report for the Rehoboth Bay section of Delaware. Data collected describes conditions in the immediate riparian zone, the bank, and along the shore. There are three shapefiles that are part …

The Launch: Comprehensive Coastal Resource Management Plans For Local Governments, Center For Coastal Resources Management, Virginia Institute Of Marine Science

Reports

Rivers & Coast is a periodic publication of the Center for Coastal Resources Management, Virginia Institute of Marine Science. The goal of Rivers & Coast is to keep readers well informed of current scientific understanding behind key environmental issues related to watershed rivers and coastal ecosystems of the Chesapeake Bay.

Lynnhaven River Shoreline Management Plan, C. Scott Hardaway Jr., Donna A. Milligan, Christine A. Wilcox, Mary C. Cox, Marcia Berman, Tamia Rudnicky, Karinna Nunez, Sharon Killeen

Reports

The shores of Lynnhaven River are fairly sheltered coasts. In addition, much of the shoreline has existing hardened shore protection. However, much of Lynnhaven River’s shoreline is suitable for a “Living Shoreline” approach to shore-line management. The Commonwealth of Virginia has adopted policy stating that Living Shorelines are the preferred alternative for erosion control along tidal waters in Virginia (http://leg1.state.va.us/cgi-bin/legp504.exe?111+ful+CHAP0885+pdf). The policy defines a Living Shoreline as …”a shoreline management practice that provides erosion control and water quality benefits; protects, restores or enhances natural shoreline habitat; and
maintains coastal processes through the strategic placement of plants, stone, sand …

Effect Of High Temperature Heat Treatments On The Quality Factor Of A Large-Grain Superconducting Radio-Frequency Niobium Cavity, P. Dhakal, G. Ciovati, G. R. Myneni, K. E. Gray, Et Al., Robert D. Pike

Arts & Sciences Articles

Large-grain Nb has become a viable alternative to fine-grain Nb for the fabrication of superconducting radio-frequency cavities. In this contribution we report the results from a heat treatment study of a large-grain 1.5 GHz single-cell cavity made of “medium purity” Nb. The baseline surface preparation prior to heat treatment consisted of standard buffered chemical polishing. The heat treatment in the range 800–1400°C was done in a newly designed vacuum induction furnace. Q0 values of the order of 2×1010 at 2.0 K and peak surface magnetic field (Bp) of 90 mT were achieved reproducibly. A Q0 value of (5±1)×1010 at 2.0 …

Local Solvent Acidities In Beta-Cyclodextrin Complexes With Prodan Derivatives, Christopher J. Abelt

Arts & Sciences Articles

The local solvent acidities (SA scale) of six 6-carbonyl-2-aminonaphthalene derivatives as beta-cyclodextrin complexes in water are determined through fluorescence quenching. The local polarities (E-T(N) scale) are determined through the shift of the emission center-of-mass. The apparent SA values reflect the solvent structure surrounding the guest's carbonyl group, whereas the apparent E-T(N) values reveal the net polarity of the entire guest molecule. Comparison of these values affords greater insight into the structures of the host-guest complexes. Derivatives 1 and 5 show unusually large acidities, indicative of highly exposed carbonyl groups. The remaining compounds give emission intensities pointing to shielded carbonyl groups. …

Combining Observations And Numerical Model Results To Improve Estimates Of Hypoxic Volume Within Chesapeake Bay, A. J. Bever, M. A.M. Friedrichs, C. T. Friedrichs, M. E. Scully

Presentations

No abstract provided.

Virginia Wetlands Report Vol. 28, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management

Virginia Wetlands Reports

No abstract provided.