Physical Sciences and Mathematics Commons^™

Legal Symposium On Wetlands: An Executive Summary, Roger D. Anderson, David Garten, Ted Smolen

Reports

In 1969 the Virginia Institute of Marine Science published a report stating that although marshlands represented only one-half of one percent of the total area of the state, 95 percent of Virginia 's annual harvest of sport and commercial fisheries were dependent to some degree upon these valuable wetlands . The report went on to urge some form of public control over these vital areas in order to relieve some of the pressures created by dredging, filling, diking and bulkheading.

Recognizing the need to address this issue, the 1971 General Assembly passed House Joint Resolution Number 60, creating a Wetlands …

Suspended Sediments Near Pier 12 Norfolk Navy Base On 26 June And 15 September, 1973, Evon P. Ruzecki, R. Ayres

Reports

Results of two suspended sediment studies near Norfolk Navy Base Pier 12 are given. The studies were conducted during one tidal cycle on both 26 June and 15 September 1973. The following parameters were measured at five stations in the vicinity of the pier: suspended sediment water temperature, salinity and density current speed and direction iv

A Socio-Economic Environmental Baseline Summary For The South Atlantic Region Between Cape Hatteras, North Carolina And Cape Canaveral, Florida Volume 1 : Physical Oceanography, Virginia Institute Of Marine Science

Reports

The paucity of oceanographic data on the continental shelf and in the estuaries south of Cape Hatteras, North carolina hinders attempts to document the oceanographic conditions. In general data are more available and conditions better understood in the estuaries than on the continental shelf.

The estuaries of the Southern Atlantic Bight have not been studied as extensively as the large embayments to the north. Generally the estuaries tend to be partially mixed since runoff and thus river flow is not great in these river systems. Both the distance the tidal effect is felt and the distance up the estuary that …

A Socio-Economic Environmental Baseline Summary For The South Atlantic Region Between Cape Hatteras, North Carolina And Cape Canaveral, Florida Volume Iv: Geological Oceanography, Virginia Institute Of Marine Science

Reports

The geographic area covered in this report extends from Cape Hatteras, North Carolina, on the north, to Cape Canaveral, Florida, to the south. Included within this area are portions of the coastal areas of South Carolina and Georgia. All or portions of thirty coastal counties are included within the study area.

• Chapter 1 - Introduction
• Chapter 2 - Coastal Plain-Subzone I-Cape Hatteras to Winyah Bay
• Chapter 3 - Coastal Plain-Subzone II-Winyah Bay to St. Johns River
• Chapter 4 - Coastal Plain-Subzone III-St. Johns River to Cape Canaveral
• Chapter 5 - Continental Shelf-Subzone I-Cape Hatteras to Winyah Bay
• Chapter 6 - …

A Socio-Economic Environmental Baseline Summary For The South Atlantic Region Between Cape Hatteras, North Carolina And Cape Canaveral, Florida Volume Ii : Climatology, Virginia Institute Of Marine Science

Reports

The geographic area covered in this report extends from Cape Hatteras, North Carolina, on the north, to Cape Canaveral, Florida, to the·south. Included within this area are portions of the coastal areas of South Carolina and Georgia. All or portions of thirty coastal counties are included within the study area.

Estuaries in this area tend to be partially mixed due to relatively low runoff per mile of coast. The proximity of the Gulf Stream to the continental shelf and the low runoff combine to cause the salinity of the coastal water to be somewhat higher than that of the coastal …

Studies Of Certain Impacts Of Tropical Storm Agnes On The Chesapeake Bay And Its Tributaries - A Final Report On Activities, William J. Hargis Jr.

Reports

In the summer of 1972 Hurricane Agnes, spawned over the Yucatan Peninsula, developed in full force in the Gulf of Mexico, bulled its way ashore in Western Florida (and Southeastern Alabama) and spent its fury in the interior. It arrived in the Middle-Atlantic States as an Extratropical Storm. At every stage it was disruptive and destructive.

In the Chesapeake Bay Drainage Basin, Agnes was particularly spectacular even though her wind velocities were markedly reduced. In particular, she poured vast amounts of rain on an already saturated land. In rapid succession the James, the Potomac and the Susquehanna were driven into …

Electron Detachment In Low-Energy Collisions Of H- And D- With He, S. K. Lam, John B. Delos, L. Champion, L. D. Doverspike

Arts & Sciences Articles

Measurements and calculations have been made of elastic scattering and electron detachment in collisions of H− and D− with He at energies of 5-120 eV. The measurements show no other inelastic processes occurring in this energy range. The mechanism responsible for electron detachment is assumed to be the crossing of the H− bound state with the continuum of free states; the bound state is then assigned a complex energy. The measured elastic scattering differential cross section shows no structure except at Eθ∼200 eV deg, where there is a region of downward curvature in the graph of logσ vs θ. This …

Studies Of The Potential Curve Crossing Problem. Iii. Collisional Spectroscopy Of Close Crossings, John B. Delos

Arts & Sciences Articles

Using a previously developed semiclassical theory of electronic excitations, the cross sections that result from potential-curve crossings are calculated for a model system. The phenomena appearing in the differential cross sections are displayed and discussed.

Oyster Spatfall On Shellstrings In Virginia Rivers: 1973 Annual Summary, Dexter S. Haven, Paul C. Kendall

Reports

Although oyster setting levels in most Virginia river systems are still far below trose whicb commonly occurred prior to 1960, the 1973 season marked an improvement over the previous year when Tropical Storm Agnes raged througb the Chesapeake Bay region, creating adverse environmental conditions which were largely responsible_ for the_ lowest s},tting levels on record, Data for 1972,

Optimized Measurements Of Discharge And Suspended Sediment Transport In A Salt Marsh Drainage System, John D. Boon

VIMS Articles

Detailed measurements of current speed and suspended sedlment concentration distributions in a channel cross-section of a tidal marsh creek were analyzed. Subsequent sampiing Intervals In time and space were selected to provide acceptable estimates of flood and ebb transport of water and suspended sediment post the cross sectlon. Data from eight 13-hour measurement runs taken at various times of the year seem to favor a net ebb resldual of suspended sedlment transport for the year In question.

A number of environmental factors appear to Influence suspended sediment trons· port in marsh channels.Residual transport of sediment In these systems is, however, …

Hydroids Of The Pelagic Sargassum Community Of The Gulf Stream And Sargasso Sea, David Holland Rackley

Dissertations, Theses, and Masters Projects

No abstract provided.

The Effects Of Salinity Shocks And Low Oxygen Levels On Atpase Activity In Two Estuarine Bivalves, Marvin Ervis Hedgepeth

Dissertations, Theses, and Masters Projects

No abstract provided.

Coastal Data Acquisition, Compilation And Analysis, Virginia Beach Coastal Compartment, Southeastern Virginia : Quarterly Technical Status Report June 10, 1974 - Sept. 10, 1974, Victor Goldsmith

Reports

No abstract provided.

Segmentation Of Chesapeake Bay: A Representative Exercise, Robert E. Ulanowicz, Bruce J. Neilson

Reports

The goal of the CRC/RANN Waste Water Program is to provide the tools to management agencies which will enable them to make sound quantitative decisions on the siting of future sewage outfalls and the upgrading or elimination of existing sewage treatment plants. Obviously, the available funds do not permit extensive field studies at every possible outfall site. Therefore, some system is needed which will allow data to be transferred from one area to other areas within the Bay which have similar characteristics. A system of "segmentation"., as suggested by Dr. D. W. Pritchard, was chosen by the Scientific Management Advisory …

Virginia And The Outer Continental Shelf : Problems, Possibilities, And Posture, The Committee

Reports

The Outer Continental Shelf Advisory Committee was \ established.by the Secretary of Commerce and Resources, Earl J. Shiflet, in July, 1974. This action was taken based upon the realization that the Atlantic Outer Continental Shelf (OCS) was a likely area for the development of offshore oil and gas resources, and that such development could have profound and far reaching impacts upon the Commonwealth. Such impacts could either be beneficial or detrimental or both, depending greatly upon the preparations made by the Commonwealth beforehand. Accordingly, Secretary Shiflet charged the OCS Advisory Committee to consider all facets of the situation, and to …

A Report On The Concentration, Distribution And Impact Of Certain Trace Metals From Sewage Treatment Plants On The Chesapeake Bay, Robert J. Huggett, O. P. Brickner, G. R. Helz, S. E. Sommmer

Reports

Population densities are ever increasing on the shores of the Chesapeake Bay and hence the flow of goods and services is being shifted to supply these people. This self perpetuating system demanismore and more of the surrounding envirorunent f or recreation, work and waste disposal. This is the case f or the Chesapeake and its sub- estuaries.

According to Brush (1974), of the total fresh water input into the Chesapeake Bay, between 1 and 2 percent is treated sewage. Toxic components on these waters may be of paramount importance in the Bay ecosystem and ma;y have disastrous effects on the …

The Chesapeake Bay System, Effluent And Ambient Water Quality Conditions : An Interim Report To National Commission On Water Quality, Virginia Institute Of Marine Science

Reports

The Chesapeake Bay, lying in the eastern portions of Maryland and Virginia, is the largest estuary in the United States, and one of the largest in the world. It is approximately 180 statute miles long (156 nautical miles) from the mouth of the Susquehanna River'to the mouth of the Bay at the Cape Henry/Cape Charles line. The width ranges from 3.4 miles to 35 miles with an average depth of 27.7 feet. More than 50 rivers contribute fresh water. The five largest are the Susquehanna, the Potomac, the James, the Rappahannock and the York.

Acute Effect Of Free Chlorine On Selected Estuarine Invertebrates And Vertebrates : Final Report, Morris H. Roberts, Robert J. Diaz

Reports

The objective of this project was to determine acute toxic effects of chlorine on selected estuarine organisms found adjacent to the projected outfall of a sewage treatment plant in the lower York River. The test species specified under contract were ovster (Crassostrea virginica) and clam (Mercenaria mercenaria) larvae, Acartia tonsa (a dominant copepod), and the fishes, menhaden (Brcvoortia tyranus), pipefish (Svngnathus fuscus), blennies (Hypsoplennius hentzi) and sheepshead minnow (Cyprinodon variegatus). The parameter of interest in the tests was mortality when the animals were exposed to a constant level of chlorine for a 48 or 96 hr period.

Temporal And Spatial Heterogeneity In Diatom Populations Of The Lower York River, Virginia, John Joseph Manzi

Dissertations, Theses, and Masters Projects

No abstract provided.

Sediment Transport Processes In A Salt Marsh Drainage System, John Daniel Boon Iii

Dissertations, Theses, and Masters Projects

No abstract provided.

Mechanics Of Beach Cusp Formation, Asbury H. Sallenger

Dissertations, Theses, and Masters Projects

Beach cusps are crescentic shoreline accumulations of unconsolidated sediment that are characterized by a quasi-equal longshore spacing. The processes controlling the development of the cuspate form and the spacing of cusps were investigated. Field measurements showed that the cuspate form was derived through erosion of beach ridges, The ridges oriented alongshore in the swash zone are characterized by quasi-equally spaced channels cut normal to the shoreline whose widths are much less than the channel spacing. The upwash flows up the front face of the ridge and ponds shoreward of the ridge crest. The ponded fluid returns seaward through the channels. …

A Program To Monitor The Environmental Effects Of Shipyard Expansion : A Final Report, Robert J. Diaz, M. E. Bender

Reports

Dredging and land reclamation are two of the potentially most damaging activities that man undertakes in estuarine areas. Hampton Roads, the world's largest natural harbor, is a multiple use port, being a major center for fishing and shellfishing, transportation, recreation and industrial sitings. Dredging which is a necessary perpetuation for some of these activities, could be directly or indirectly detrimental to others. It is in such a multiple use situation that environmental alterations, real or potential, must be carefully planned and closely monitored. Projects of the type underway can cause changes in circulation, water depth, turbidity, and patterns qf siltation, …

Precession Of Positive Muons In Nickel, Mary Louis Grayson Foy

Dissertations, Theses, and Masters Projects

No abstract provided.

Carbon Transport In Two York River, Virginia Tidal Marshes, Kenneth Alan Moore

Dissertations, Theses, and Masters Projects

Annual net transports of particulate organic carbon (POC), dissolved organic carbon (DOC), and ATP-carbon were determined for two York River, Virginia, tidal marshes by monthly sampling for one year. Annual net losses of POC, DOC, and ATP-carbon from the marsh to the York River were observed for both areas, indicating that the long-term effect of these marshlands is to contribute both living and detrital organic material to the estuary. The mesohaline marsh area, Carter Creek, was observed to have the greater amount of organic carbon loss in the particulate fraction, while the oligohaline marsh area, Ware Creek, was observed to …

Heavy Metal Concentrations In The Clam Rangia Cuneata From The Rappahannock And James Rivers, Robert Emile Croonenberghs

Dissertations, Theses, and Masters Projects

This project investigated the feasibility of using the brackish water clam Rangia cuneata as a heavy metal pollution indicator, and further investigated the state of heavy metal pollution in the James River. Rangia cuneata were sampled in the fall of 1972 from the Rappahannock and James Rivers , and meats were analyzed by atomic absorption spectrophotometry for wet weight concentrations of copper, zinc, cadmium and lead. Levels of copper and zinc in Rangia cuneata were shown to be unaffected by clam size, spawning differences, salinity or distance upriver, and substrate grain size. Heavy metal concentrations in the oxidized channel sediments, …

Benthic Infaunal Community Formation In Dredged Areas In Hampton Roads, Virginia, Thomas Karl Duncan

Dissertations, Theses, and Masters Projects

The macrobenthic fauna in three dredged areas in Hampton Roads, Virginia was sampled for 14 months. Repopulation occurred very rapidly after the cessation of dredging, but the dominant species were generally not those previously recorded as mud-bottom dominants in the Hampton Roads area. The faunal changes through time somewhat agreed with those reported in classical successional sequences. This dissertation is from the Joint Program Degree from the College of William & Mary and University of Virginia and awarded by the University of Virginia.

Experimental Studies Of Muonium Production And The Muonium-Antimuonium Transition In Free Space, Cheng-Shong Hsieh

Dissertations, Theses, and Masters Projects

No abstract provided.

Measurements Of The Magnetic Dipole Moments Of The Antiproton And The Sigma- Hyperon, B. Lee Roberts

Dissertations, Theses, and Masters Projects

No abstract provided.

Improved Calculations Of The Complex Dielectric Constant Of Semiconductors, Roger Allen Breckenridge

Dissertations, Theses, and Masters Projects

No abstract provided.

Negative Muon Depolarization In Liquid Helium And Several Hydrocarbons, David C. Buckle

Dissertations, Theses, and Masters Projects

No abstract provided.