Changes in salinity structure of the James, York and Rappahannock estuaries resulting from the effects of Tropical Storm Agnes

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 controlled by the salinity distribution in the Bay. ~ess pronounced stratification maxima occurred in the James about July 6 and August 18 and in the York during August. These events do not appear to be correlated with stream gauge flow records or local precipitation. These events are possible instances of overshooting of equilibrium by the intruding salt water near the bottom.https://scholarworks.wm.edu/vimsbooks/1042/thumbnail.jp

A water quality modeling study of Lynnhaven Bay, Virginia

The City of Virginia Beach has proposed channel dredging in the Eastern Branch of the Lynnhaven Bay for the purposes of recreations and drainage improvement. It is therefore necessary to examine the possible environmental results of such a project. This environmental assessment is complicated by another proposal to modify the Lynnhaven system. The U.S. Army Corps of Engineers has proposed adding a second canal leading to the Eastern Branch, in order to reduce flood damage. This canal project would affect the Lynnhaven system by increasing nonpoint sources of pollution and by increasing the tidal prism. The water quality consequences of the canal project have been studied (Kuo & Hyer, 1979). The proposed channel dredging project must be studied not only by itself but in combination with the canal project proposed by the Corps of Engineers. In this study, the water quality model previously calibrated and validated for the Corps of Engineers is used to estimate the effects of the channel dredging in the Eastern Branch of the Lynnhaven

Data Report: Operation York River, 1969

A field survey was carried out in October 1969 to gather field data from the Mattaponi, Pamunkey and York rivers in order to construct mathematical models for salinity and dissolved oxygen. The results of the field operation are presented, together with a description of the methods and instruments used in the data collection and analysis

Index of existing data sources for Chincoteague, Sinepuxent, Assawoman and Little Assawoman Bays : report to the Maryland Department of Natural Resources

Available data on the Chincoteague - Assawoman Bay system have been reviewed, indexed and summarized. Water quality data (including sources), other biological studies, hydrographic data, geological data and socioeconomic studies are included

Hydrography and hydrodynamics of Virginia estuaries : XI. Mathematical model studies of water quality of the Piankatank Estuary

The Cooperative State Agencies (CSA) program is a continuing activity of the Virginia State Water Control Board and the Virginia Institute of Marine Science, devoted to the development of water quality predictive tools, and to the monitoring of water quality in the Virginia tidal waters. This report summarizes the field survey .of water quality and the development of a mathematical model for the Piankatank River, which is a tributary estuary of the Chesapeake Bay. An intensive water quality field survey was conducted in July 1975. An additional dye study was conducted in October 1975. The hydrographic and water quality data, combined with measured bathymetric profiles, were used to construct and calibrate a one-dimensional, time-dependent mathematical water quality model. The model simulates the distribution of dissolved oxygen, biochemical oxygen demand (both NBOD and CBOD) and salinity