Record Display for the EPA National Library CatalogRECORD NUMBER: 4 OF 4
|Main Title||Salt balance and exchange in the Rhode River : a tributary embayment to the Chesapeake Bay /|
|Publisher||Chesapeake Bay Institute, Johns Hopkins University,|
|Subjects||Salinity--Maryland--Rhode River--Charts, diagrams, etc ; Salinity--Chesapeake Bay (Md and Va) ; Chemical oceanography--Chesapeake Bay (Md and Va) ; Atlantic Ocean--Chesapeake Bay|
|Additional Subjects||Salinity--Maryland--Rhode River--Charts, diagrams, etc|
|Collation||191 pages in various pagings : illustrations, maps ; 28 cm.|
Includes bibliographical references (pages 141-143). "This report contains results of work supported by the National Science Foundation - research applied to National Needs Grant RANN/CRC GI 34869 & 38973 through the Chesapeake Research Consortium." "January 1975."
The Rhode River is a tributary to the Chesapeake Bay which does not have a significant local fresh water input. Salinity and exchange rates in this embayment are controlled by variation in salinity in the adjacent area of the bay. Salinity measurements were made throughout the embayment and into the adjacent bay with a period of one to several weeks from March 1972 - March 1973 and with a period of one to several days for two intensive study periods in August 1972 and March 1973. Salinity variations which significantly affected the exchange rates, were shown to occur during the winter and spring with a period of several weeks due to changes in flow of the Susquehanna River. During times when the bay was strongly stratified, the tilting of the halocline by the cross-bay component of the wind was observed to cause intrusions of high salinity water into the embayment from below the halocline. A simple one dimensional, segmented, salt balance model was used to quantify the salinity changes and to calculate exchange coefficients between segments and between the embayment and the bay. The magnitude of these exchange coefficients was empirically related to the rate of change of salinity with time at the mouth of the embayment.