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Full-Text Articles in Physical Sciences and Mathematics

Virginia Wetlands Report Vol. 30, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management Mar 2015

Virginia Wetlands Report Vol. 30, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management

Virginia Wetlands Reports

A Look Back at Tidal Shoreline Management


Fairfax County Shoreline Management Plan, C. Scott Hardaway Jr., Donna A. Milligan, Christine A. Wilcox, Marcia Berman, Tamia Rudnicky, Karinna Nunez, Sharon Killeen Mar 2015

Fairfax County Shoreline Management Plan, C. Scott Hardaway Jr., Donna A. Milligan, Christine A. Wilcox, Marcia Berman, Tamia Rudnicky, Karinna Nunez, Sharon Killeen

Reports

Much of the Fairfax County’s tidal shoreline is suitable for a “Living Shoreline” approach to shoreline 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 fill, and other structural and organic materials.” The key to effective implementation of this policy at the local level is …


Calcium Homeostasis In A Local/Global Whole Cell Model Of Permeabilized Ventricular Myocytes With A Langevin Description Of Stochastic Calcium Release, Xiao Wang, Seth H. Weinberg, Gregory D. Smith, Yan Hao, Eric A. Sobie Mar 2015

Calcium Homeostasis In A Local/Global Whole Cell Model Of Permeabilized Ventricular Myocytes With A Langevin Description Of Stochastic Calcium Release, Xiao Wang, Seth H. Weinberg, Gregory D. Smith, Yan Hao, Eric A. Sobie

Arts & Sciences Articles

Population density approaches to modeling local control of Ca2+ induced Ca2+ release in cardiac myocytes can be used to construct minimal whole cell models that accurately represent heterogeneous local Ca2+ signals. Unfortunately, the computational complexity of such "local/global" whole cell models scales with the number of Ca2+ release unit (CaRU) states, which is a rapidly increasing function of the number of ryanodine receptors (RyRs) per CaRU. Here we present an alternative approach based on a Langevin description of the collective gating of RyRs coupled by local Ca2+ concentration ([Ca2+]). The computational efficiency of this approach no longer depends on the …


Virginia Shellfish Aquaculture Situation And Outlook Report : Results Of The 2014 Virginia Shellfish Aquaculture Crop Reporting Survey, Karen Hudson, Thomas J. Murrary Mar 2015

Virginia Shellfish Aquaculture Situation And Outlook Report : Results Of The 2014 Virginia Shellfish Aquaculture Crop Reporting Survey, Karen Hudson, Thomas J. Murrary

Reports

The Virginia Shellfish Aquaculture Situation and Outlook Report has been produced annually by Virginia Institute of Marine Science extension partners affiliated with Virginia Sea Grant since 2005. The survey and report provides annual assessments with which to gauge growth and inputs in Virginia’s shellfish aquaculture industry. This report is based upon an industry survey completed during the first quarter of 2015.


Estimating Relative Abundance Of Young-Of-Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2014), Troy D. Tuckey, Mary C. Fabrizio Mar 2015

Estimating Relative Abundance Of Young-Of-Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2014), Troy D. Tuckey, Mary C. Fabrizio

Reports

The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American Eel in November 1999. The FMP calls for efforts to collect American Eel data through both fishery-dependent and fishery-independent studies in coastal states. Consequently, member jurisdictions agreed to implement an annual survey for young-of-year (YOY) American Eels. The survey is intended to “…characterize trends in annual recruitment of the YOY eels over time [to produce a] qualitative appraisal of the annual recruitment of American Eel to the 4 U.S. Atlantic Coast” (ASMFC 2000). The development of these surveys began in 2000 with full …


Introduction To The Research Capabilities Of The Vims Coastal Hydrodynamics & Sediment Dynamics (Chsd) Lab, G. M. Cartwright, K. A. Fall, C. T. Friedrichs, D. Tarpley Feb 2015

Introduction To The Research Capabilities Of The Vims Coastal Hydrodynamics & Sediment Dynamics (Chsd) Lab, G. M. Cartwright, K. A. Fall, C. T. Friedrichs, D. Tarpley

Presentations

No abstract provided.


What Controls Bed Erodibility In Muddy Estuaries? Insights From The York River, Virginia, C. T. Friedrichs, K. A. Fall, R. J. Diaz, P. Dickhut Feb 2015

What Controls Bed Erodibility In Muddy Estuaries? Insights From The York River, Virginia, C. T. Friedrichs, K. A. Fall, R. J. Diaz, P. Dickhut

Presentations

Appropriate parameterization of time-dependent erodibility of muddy seabeds is a significant barrier to improved understanding and accurate modeling of sediment dynamics in estuaries and other coastal regions. In an effort to better understand controls on muddy seabed erodibility, bed erodibility and associated bed sediment properties have been measured by our group on cores collected on dozens of cruises over the last decade in the York Estuary. We have also inferred time-varying erodibility indirectly in the York Estuary over several years by vertically integrating observations of tidally-varying suspended sediment concentration. This presentation synthesizes the results of these long-term observations in this …


Controls On Suspended Particle Properties And Water Clarity Along A Partially-Mixed Estuary, York River Estuary, Virginia, K. A. Fall, C. T. Friedrichs, G. M. Cartwright Feb 2015

Controls On Suspended Particle Properties And Water Clarity Along A Partially-Mixed Estuary, York River Estuary, Virginia, K. A. Fall, C. T. Friedrichs, G. M. Cartwright

Presentations

No abstract provided.


Representing Taxonomic, Phylogenetic And Functional Diversity: New Challenges For Mediterranean Marine-Protected Areas, Francois Guilhaumon, Camille Albouy, Et Al, Christine N. Meynard Feb 2015

Representing Taxonomic, Phylogenetic And Functional Diversity: New Challenges For Mediterranean Marine-Protected Areas, Francois Guilhaumon, Camille Albouy, Et Al, Christine N. Meynard

VIMS Articles

To assess gaps in the representation of taxonomic, phylogenetic and func- tional diversity among coastal fishes in Mediterranean marine-protected areas (MPAs).


Charles City County Shoreline Management Plan, C. Scott Hardaway Jr., Donna A. Milligan, Christine A. Wilcox, Marcia Berman, Tamia Rudnicky, Karinna Nunez, Sharon A. Killeen Feb 2015

Charles City County Shoreline Management Plan, C. Scott Hardaway Jr., Donna A. Milligan, Christine A. Wilcox, Marcia Berman, Tamia Rudnicky, Karinna Nunez, Sharon A. Killeen

Reports

The shores of Charles City range from exposed open river to very sheltered creeks, and the nature of shoreline change varies accordingly. This shoreline management plan is useful for evaluating and planning shoreline management strategies appropriate for all the creeks and rivers of Charles City. It ties the physical and hydrodynamic elements of tidal shorelines to the various shoreline protection strategies.

Much of the Charles City County’s shoreline is suitable for a “Living Shoreline” approach to shoreline management. The Commonwealth of Virginia has adopted policy stating that Living Shorelines are the preferred alternative for erosion control along tidal waters in …


Controls On Bed Erodibility In The York River Estuary, C. T. Friedrichs, Grace M. Cartwright, R. J. Diaz, P. J. Dickhut Jan 2015

Controls On Bed Erodibility In The York River Estuary, C. T. Friedrichs, Grace M. Cartwright, R. J. Diaz, P. J. Dickhut

Presentations

No abstract provided.


Controls On Suspended Particle Properties And Water Clarity In The York River Estuary, Virginia, K. A. Fall, C. T. Friedrichs, G. M. Cartwright, D. G. Bowers Jan 2015

Controls On Suspended Particle Properties And Water Clarity In The York River Estuary, Virginia, K. A. Fall, C. T. Friedrichs, G. M. Cartwright, D. G. Bowers

Presentations

No abstract provided.


2015 Hampton Roads Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans Jan 2015

2015 Hampton Roads Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.


2015 Chesapeake Bay Bridge Tunnel Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans Jan 2015

2015 Chesapeake Bay Bridge Tunnel Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.


2015 Gloucester Point Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans Jan 2015

2015 Gloucester Point Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.


2015 Wachapreague Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans Jan 2015

2015 Wachapreague Station Tide Prediction Calendars, Virginia Institute Of Marine Science, David A. Evans

Miscellaneous

These calendars are produced monthly using David Evans' Tidecal.


Gis Data: City Of Newport News, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Karen Duhring, Kory Angstadt, Alexandra Procopi, David Weiss, Carl Hershner Jan 2015

Gis Data: City Of Newport News, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie G. Bradshaw, Karen Duhring, Kory Angstadt, Alexandra Procopi, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …


Regression Or Significance Tests: What Other Choice Is There?-An Academic Perspective Response, Mc Newman, M Krull Jan 2015

Regression Or Significance Tests: What Other Choice Is There?-An Academic Perspective Response, Mc Newman, M Krull

VIMS Articles

Both the no-observed-effect concentration and its null hypothesis significance testing foundation have drawn steady criticism since their inceptions [1–5]. Many in our field reasonably advocate regression to avoid conventional null hypothesis significance testing shortcomings; however, regression is compromised under commonly encountered conditions (Green,present Perspective’s Challenge). As the debate to favor null hypothesis significance testing or regression methods continues into the 21st century, a sensible strategy might be to take a moment to ask, Are there now other choices? Our goal is to sketch out 1 such choice.


Towards Predicting Street-Level Inundation: Using Operational Forecast Modeling Techniques During 2011 Hurricane Irene, J. D. Loftis, H. V. Wang, D. R. Forrest Jan 2015

Towards Predicting Street-Level Inundation: Using Operational Forecast Modeling Techniques During 2011 Hurricane Irene, J. D. Loftis, H. V. Wang, D. R. Forrest

Presentations

Storm surge-induced coastal inundation poses numerous personal, commercial, industrial, and sociopolitical challenges for society. Flooding can be caused by the combination of storm surge and river-induced inland flooding in many locations throughout the coastal plain. The cross-disciplinary nature of the hydrodynamics involved (hydraulics, oceanography, and hydrology), coupled with the complexity of the atmospheric forcing, makes a numerical model the best approach for a comprehensive study of the dynamics of coastal inundation.

This study builds upon the lessons learned from forecast modeling experiences during 2011 Hurricane Irene in Tidewater Virginia, to ascertain the most effective way to approach predicting street-level inundation. …


Scientific Evidence Supports A Ban On Microbeads, Cm Rochman, Sm Kross, Jb Armstrong, Mt Bogan, Es Darling, Sj Green, Ar Smyth, D Verissimo Jan 2015

Scientific Evidence Supports A Ban On Microbeads, Cm Rochman, Sm Kross, Jb Armstrong, Mt Bogan, Es Darling, Sj Green, Ar Smyth, D Verissimo

VIMS Articles

No abstract provided.


Decline Of Yangtze River Water And Sediment Discharge: Impact From Natural And Anthropogenic Changes, S. L. Yang, K. H. Xu, J. D. Milliman, H.F. Yang, C.S. Wu Jan 2015

Decline Of Yangtze River Water And Sediment Discharge: Impact From Natural And Anthropogenic Changes, S. L. Yang, K. H. Xu, J. D. Milliman, H.F. Yang, C.S. Wu

VIMS Articles

The increasing impact of both climatic change and human activities on global river systems necessitates an increasing need to identify and quantify the various drivers and their impacts on fluvial water and sediment discharge. Here we show that mean Yangtze River water discharge of the first decade after the closing of the Three Gorges Dam (TGD) (2003-2012) was 67 km(3)/yr (7%) lower than that of the previous 50 years (1950-2002), and 126 km(3)/yr less compared to the relatively wet period of pre-TGD decade (1993-2002). Most (60-70%) of the decline can be attributed to decreased precipitation, the remainder resulting from construction …


Gis Data: York County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Carl Hershner, Kory Angstadt, David Stanhope, David Weiss, Karen Duhring, Christine Tombleson Jan 2015

Gis Data: York County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Carl Hershner, Kory Angstadt, David Stanhope, David Weiss, Karen Duhring, Christine Tombleson

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …


Relative Importance Of Nutrient Load And Wind On Regulating Interannual Summer Hypoxia In The Chesapeake Bay, P Wang, Harry V. Wang, L Linker Jan 2015

Relative Importance Of Nutrient Load And Wind On Regulating Interannual Summer Hypoxia In The Chesapeake Bay, P Wang, Harry V. Wang, L Linker

VIMS Articles

No abstract provided.


Undocumented Migration In Response To Climate Change, Raphael J. Nawrotzki, Fernando Riosmena, Lori M. Hunter, Daniel Runfola Jan 2015

Undocumented Migration In Response To Climate Change, Raphael J. Nawrotzki, Fernando Riosmena, Lori M. Hunter, Daniel Runfola

Arts & Sciences Articles

In the face of climate change-induced economic uncertainties, households may em-ploy migration as an adaptation strategy to diversify their livelihood portfolio through remit-tances. However, it is unclear whether such climate-related migration will be documented or undocumented. In this study we combined detailed migration histories with daily temperature and precipitation information from 214 weather stations to investigate whether climate change more strongly impacted undocumented or documented migrations from 68 rural Mexican mu-nicipalities to the U.S. from 1986−1999. We employed two measures of climate change, the warm spell duration index (WSDI) and precipitation during extremely wet days (R99PTOT). Results from multi-level event-history …


Gis Data: Lancaster County, Virginia Shoreline Inventory Report, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Kory Angstadt, David Stanhope, Christine Tombleson, Karen Duhring, Alexander D. Renaud, Robert Isdell, Pamela Braff, David Weiss, Carl Hershner Jan 2015

Gis Data: Lancaster County, Virginia Shoreline Inventory Report, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Kory Angstadt, David Stanhope, Christine Tombleson, Karen Duhring, Alexander D. Renaud, Robert Isdell, Pamela Braff, David Weiss, Carl Hershner

Data

The data inventory developed for the Shoreline Inventory is based on a three tiered shoreline assessment approach. This assessment characterizes conditions that can be observed from a small boat navigating along the shoreline or by using observations made remotely at the desktop using high resolution imagery. The three tiered shoreline assessment approach divides the shorezone into three regions:

  • the immediate riparian zone, evaluated for land use

  • the bank, evaluated for height, cover and natural protection

  • the shoreline, describing the presence of shoreline structures for shore protection and recreational purposes.

The 2015 Inventory for Lancaster County was generated using on-screen, digitizing …


Gis Data: Stafford County, Virginia Shoreline Inventory Report, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen Duhring, David Stanhope, David Weiss, Carl Hershner Jan 2015

Gis Data: Stafford County, Virginia Shoreline Inventory Report, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen Duhring, David Stanhope, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …


Gis Data: City Of Virginia Beach, Virginia Shoreline Inventory Report, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt Jan 2015

Gis Data: City Of Virginia Beach, Virginia Shoreline Inventory Report, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Daniel E. Schatt

Data

Disclaimer:

The Center for Coastal Resources Management (CCRM) provides these data with the understanding that they are not guaranteed to be correct or complete, and conclusions drawn from the data set are the sole responsibility of the user. Every attempt has been made to ensure that these data and the documentation are reliable and accurate. CCRM, the Virginia Institute of Marine Science (VIMS), and the Commonwealth of Virginia assume no liability for any damages caused by inaccuracies in the data or documentation; and make no warranty, express or implied, as to the accuracy, completeness, or utility of this information, nor …


Gis Data: Lancaster County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon A. Killeen, Tamia Rudnicky, Julie Bradshaw, Kory Angstadt, David Stanhope, Christine Tombleson, Karen Duhring, Alexander D. Renaud, Robert Isdell, Pamela Braff, Benjamin P. Weissman, Carl Hershner Jan 2015

Gis Data: Lancaster County, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon A. Killeen, Tamia Rudnicky, Julie Bradshaw, Kory Angstadt, David Stanhope, Christine Tombleson, Karen Duhring, Alexander D. Renaud, Robert Isdell, Pamela Braff, Benjamin P. Weissman, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …


Gis Data: City Of Norfolk, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen A. Duhring, Kory Angstadt, Alexandra Procopi, David Weiss, Carl Hershner Jan 2015

Gis Data: City Of Norfolk, Virginia Shoreline Management Model, Marcia Berman, Karinna Nunez, Sharon Killeen, Tamia Rudnicky, Julie Bradshaw, Karen A. Duhring, Kory Angstadt, Alexandra Procopi, David Weiss, Carl Hershner

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …


Gis Data: City Of Virginia Beach, Virginia Shoreline Management Model, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Dan Schatt Jan 2015

Gis Data: City Of Virginia Beach, Virginia Shoreline Management Model, Marcia Berman, Harry Berquist, Sharon Killeen, Carl Hershner, Karinna Nunez, Karen Reay, Tamia Rudnicky, Dan Schatt

Data

The Shoreline Management Model is a GIS spatial model that determines appropriate shoreline best management practices using available spatial data and decision tree logic. Available shoreline conditions used in the model include the presence or absence of tidal marshes, beaches, and forested riparian buffers, bank vegetation cover, bank height, wave exposure (fetch), nearshore water depth, and proximity of coastal development to the shoreline. The model output for shoreline best management practices is displayed in the locality Comprehensive Map Viewer. One GIS shapefile is developed that describes two arcs or lines representing practices in the upland area and practices at the …