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Articles 1 - 21 of 21
Full-Text Articles in Physical Sciences and Mathematics
Delineation Of A Wave Climate For Dam Neck, Virginia Beach, Virginia, Andrew L. Gutman
Delineation Of A Wave Climate For Dam Neck, Virginia Beach, Virginia, Andrew L. Gutman
Reports
No abstract provided.
A Prototype Lagrangian Current Buoy Using The Carrier Plus Sideband (Csb) Retransmission Of Omega Navigation Symbols, Donald L. Baker, Christian S. Welch
A Prototype Lagrangian Current Buoy Using The Carrier Plus Sideband (Csb) Retransmission Of Omega Navigation Symbols, Donald L. Baker, Christian S. Welch
Reports
As part of the continental shelf investigations of the Virginia Institute of Marine Science (VIMS) , electronics were developed and tested to track an ocean-current-following (Lagrangian) buoy by the retransmission of Omega navigation signals to a shore station using medium frequency (2 . 398 MHz) ground wave propagation and equal-carrier-upper-sideband modulation . The buoy electronics include sharp clipping and filtering for noise reduction and Omega signal equalization . The carrier and upper sideband are transmitted with equal power to maintain the relative phases of separate Omega station signals on demodulation. The base station is a 2.4 MHz receiver/demodulator feeding a …
Response And Recovery To Sediment Influx In The Rappahannock Estuary: A Summary, Maynard M. Nichols, Galen Thompson, Bruce Nelson
Response And Recovery To Sediment Influx In The Rappahannock Estuary: A Summary, Maynard M. Nichols, Galen Thompson, Bruce Nelson
VIMS Books and Book Chapters
Flooding from Tropical Stonn Agnes produced unique hydrographic conditions for transport and dispersal of sediment in the Rappahannock and .James estuaries. Analyses indicate two cycles of response and recovery to the shock of extreme freshwater and sediment influx; one cycle in response to Rappahannock inflow; the other to intense mixing within the estuary. Important stages in the sequence consist of: (1) an initial response and seaward surge of river water and sediment; (2) shock with downstream translation of the salt intrusion head with a near-bottom salinity front and high turbidity in surface and in bottom water; (3) rebound with intense …
The Effect Of Tropical Storm Agnes On Heavy Metal And Pesticide Residues In The Eastern Oyster From Southern Chesapeake Bay, M. E. Bender, R. J. Huggett
The Effect Of Tropical Storm Agnes On Heavy Metal And Pesticide Residues In The Eastern Oyster From Southern Chesapeake Bay, M. E. Bender, R. J. Huggett
VIMS Books and Book Chapters
The concentrations of cadmium, copper, and zinc in the eastern oyster, Crassostrea virginica, are compared for samples collected before and after Tropical Storm Agnes. The "before" samples consisted of 475 animals from 95 stations collected in January 1971 and the "after" samples of 285 animals from 57 stations collected in January 1973. Shifts in the areal concentrations distributions were observed, apparently due to Agnes. Analyses of hard clams, blue crabs and oysters for chlorinated hydrocarbon pesticides showed influx of these compounds to be minimal as reflected by the residue levels observed. Comparison of residue levels in oysters to pre-Agnes conditions …
A Mathematical Model Of Chincoteague Bay, Virginia, John Joseph Vaccaro
A Mathematical Model Of Chincoteague Bay, Virginia, John Joseph Vaccaro
Dissertations, Theses, and Masters Projects
No abstract provided.
Changes In Salinity Structure Of The James, York And Rappahannock Estuaries Resulting From The Effects Of Tropical Storm Agnes, Paul V. Hyer, Evon P. Ruzecki
Changes In Salinity Structure Of The James, York And Rappahannock Estuaries Resulting From The Effects Of Tropical Storm Agnes, Paul V. Hyer, Evon P. Ruzecki
VIMS Books and Book Chapters
The peak effect of the flood waters produced by Tropical Storm Agnes was seen on June 25 in the James, June 26 in the Rappahannock, and June 30 in the York. Recovery toward normal salinity conditions after the high runoffs proceeded discontinuously, with alternating periods of vertical stratification and destratification. During strongly stratified stages, saline water advanced upstream along the bottom. In the York and James Rivers, the most dramatic stratification occurred about July 20- 25. This event resulted in bottom salinity values exceeding normal ambient values and, at the river mouths, reaching values hitherto unobserved. This event was apparently …
Rare And Newly Recorded Chondricthyian And Teleostean Fishes Of The Continental Slope Of West Africa, G. A. Golovan
Rare And Newly Recorded Chondricthyian And Teleostean Fishes Of The Continental Slope Of West Africa, G. A. Golovan
Reports
This paper is composed primarily of species descriptions and accounts, and as such contains a very large number of abbreviations and numerals in the text. Inasmuch as the material presented in this form is central to the content of the paper, very great care was taken in transposing and checking this information between this translation and the original Russian version.
The Effects Of The Agnes Flood On The Salinity Structure Of The Lower Chesapeake Bay And Contiguous Waters, A. Y. Kuo, E. P. Ruzecki, C. S. Fang
The Effects Of The Agnes Flood On The Salinity Structure Of The Lower Chesapeake Bay And Contiguous Waters, A. Y. Kuo, E. P. Ruzecki, C. S. Fang
VIMS Books and Book Chapters
The transient response of salinity distribution in lower Chesapeake Bay to flood waters from Tropical Storm Agnes is studied in terms of a two-layered, partially mixed estuary. Prior to 30 June 1972, surface salinities were well depressed throughout the Bay while those at the bottom near the Bay mouth were not depressed by 5 July. This resulted in a highly stratified situation normally found in the spring of the year. Stratification decreased when bottom waters were flushed down-bay by the flood (on 5 to 10 July for the region south of New Point Comfort). The "rebound" of salinity structure started …
The Effects Of Tropical Storm Agnes On The Copper And Zinc Budgets Of The Rappahannock River, Robert J. Huggett, Michael E. Bender
The Effects Of Tropical Storm Agnes On The Copper And Zinc Budgets Of The Rappahannock River, Robert J. Huggett, Michael E. Bender
VIMS Books and Book Chapters
The metals copper and zinc were analyzed in bottom sediments (top 1 cm) from the Rappahannock River before and after Tropical Storm Agnes. By extracting the sediments with various techniques (HN03, HCl) the nature of the metal speciation can be estimated. Data show that the inorganic copper was increased by a factor of 2 to 3 in the normally saline portion of the river as a result of Agnes but returned to before-Agnes levels within one year. Metal analyses of suspended sediments collected during the Agnes flooding allows an estimate of sedimentation indicating at least 7.5 mm of new sediments …
Flood Wave-Tide Wave Interaction On The James River During The Agnes Flood, John P. Jacobson, C. S. Fang
Flood Wave-Tide Wave Interaction On The James River During The Agnes Flood, John P. Jacobson, C. S. Fang
VIMS Books and Book Chapters
During the Agnes flood hourly tidal height data were collected at seven locations along the tidal James River and currents were measured at two transects in the lower James. A comparison between actual tides and currents and the predicted tidal features as given by the tide and tidal current tables of NOAA was made. Results of this comparison show that Agnes did significantly affect water levels in the upper portion of the tidal James, especially near Richmond. However in the lower portion of the James no discernible rise was evident due to the passage of the flood crest. A small …
Effects Of Tropical Storm Agnes On Nutrient Flux And Distribution In Lower Chesapeake Bay, C. L. Smith, W. G. Macintyre, C. A. Lake, J. G. Windsor Jr.
Effects Of Tropical Storm Agnes On Nutrient Flux And Distribution In Lower Chesapeake Bay, C. L. Smith, W. G. Macintyre, C. A. Lake, J. G. Windsor Jr.
VIMS Books and Book Chapters
Nutrient concentrations measured in lower Chesapeake Bay in the summer of 1972 immediately following the flooding associated with Tropical Storm Agnes are compared with those in the summer of 1973, a season of more normal rainfall. The large amount of land runoff produced unseasonably high concentrations of dissolved inorganic nitrogen in the Bay near the mouth of the Potomac River. Phosphate concentrations were essentially unaffected by the flooding. Fluxes of total nitrogen and total phosphorus nutrients through the mouth of Chesapeake Bay were calculated for both summers. The calculated net export of nutrients from the Bay in both August 1972, …
Observations On Dissolved Oxygen Conditions In Three Virginia Estuaries After Tropical Storm Agnes (Summer 1972), R.A. Jordan
Observations On Dissolved Oxygen Conditions In Three Virginia Estuaries After Tropical Storm Agnes (Summer 1972), R.A. Jordan
VIMS Books and Book Chapters
Dissolved oxygen (DO) and salinity levels in the James, York, and Rappahannock estuaries were monitored for approximately two months (June 24-August 31, 1972) following Tropical Storm Agnes. DO depressions developed more rapidly and were more severe in the deep waters of the York and Rappahannock than in the James. Depressions that developed immediately after the storm were followed by recoveries and subsequent, more severe depressions. In late July, bottom water DO concentrations below 1 mg/1 were found at stations covering 15 miles of the York and 25 miles of the Rappahannock. Comparison of river data with Chesapeake Bay data suggests …
The Effect Of Tropical Storm Agnes As Reflected In Chlorophyll A And Heterotrophic Potential Of The Lower Chesapeake Bay, Paul L. Zubkoff, J. Ernest Warriner Iii
The Effect Of Tropical Storm Agnes As Reflected In Chlorophyll A And Heterotrophic Potential Of The Lower Chesapeake Bay, Paul L. Zubkoff, J. Ernest Warriner Iii
VIMS Books and Book Chapters
A hydrographic station (Station Y) at the mouth of the York River (37°14.6'N, 76°23.4'W) was under biological surveillance for one year prior to the arrival of Tropical Storm Agnes. For one full year following this storm, these measurements were continued. In addition, the chlorophyll a and heterotrophic potential measurements were incorporated into an ongoing zooplankton sampling program of the lower Chesapeake Bay below 37°40'N latitude.
The Biology Of The Sandbar Shark Carcharhinus Plumbeus (Nardo, 1827) In The Lower Chesapeake Bay And Adjacent Waters, Edward Fenton Lawler
The Biology Of The Sandbar Shark Carcharhinus Plumbeus (Nardo, 1827) In The Lower Chesapeake Bay And Adjacent Waters, Edward Fenton Lawler
Dissertations, Theses, and Masters Projects
No abstract provided.
An Examination Of Shoaling Wave Parameters, Lee Weishar
An Examination Of Shoaling Wave Parameters, Lee Weishar
Dissertations, Theses, and Masters Projects
No abstract provided.
Life History Of The Spotfin Killifish, Fundulus Luciae (Pisces Cyprinodontidae), In Fox Creek Marsh, Virginia, Donald M. Byrne
Life History Of The Spotfin Killifish, Fundulus Luciae (Pisces Cyprinodontidae), In Fox Creek Marsh, Virginia, Donald M. Byrne
Dissertations, Theses, and Masters Projects
No abstract provided.
The Influence Of Environmental Salinity On Hemocyanin Function In The Blue Crab, Callinectes Sapidus, Alan Lawson Weiland
The Influence Of Environmental Salinity On Hemocyanin Function In The Blue Crab, Callinectes Sapidus, Alan Lawson Weiland
Dissertations, Theses, and Masters Projects
No abstract provided.
Isolation And Characterization Of Estuarine And Marine Sedimentary Humic Acids, John G. Windsor Jr
Isolation And Characterization Of Estuarine And Marine Sedimentary Humic Acids, John G. Windsor Jr
Dissertations, Theses, and Masters Projects
No abstract provided.
A Two-Dimensional Stratospheric Model Of The Dispersion Of Aerosols From The Fuego Volcanic Eruption, Carolyn Frances Jones
A Two-Dimensional Stratospheric Model Of The Dispersion Of Aerosols From The Fuego Volcanic Eruption, Carolyn Frances Jones
Dissertations, Theses, and Masters Projects
No abstract provided.
The Reproductive Cycle Of Mya Arenaria L And Distribution Of Juvenile Clams In The Upper Portion Of The Nearshore Zone Of The York River, Virginia, Jon Lucy
Dissertations, Theses, and Masters Projects
No abstract provided.
A Two-Dimensional Time-Dependent Numerical Model Investigation Of The Coastal Sea Circulation Around The Chesapeake Bay Entrance, Everett Michael Stanley
A Two-Dimensional Time-Dependent Numerical Model Investigation Of The Coastal Sea Circulation Around The Chesapeake Bay Entrance, Everett Michael Stanley
Dissertations, Theses, and Masters Projects
No abstract provided.