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Title: Circulation and exchange processes on the South Atlantic Bight Continental Shelf: Progress report, July 1, 1988 to June 30, 1989

Abstract

The work reported here is part of the Department of Energy sponsored Southeast US Continental Shelf Program. The DOE Program is a coordinated, multi-university, interdisciplinary investigation aimed at understanding the physical, chemical and biological processes in the South Atlantic Bight (SAB: east coast continental shelf region from Cape Hatteras to Cape Canaveral). The program is coordinated by Dr. David Menzel of Skidaway Oceanographic Institute. The activities of the other Program Investigators will be discussed briefly under Program Overview. The University of Miami component of the program involves an investigation of the physical processes regulating the transport and exchange of materials in the shelf waters. The guiding scientific objective of this work is to improve the capability for prediction of the physical environment. The principal scientific task is to determine the relative importance of the forces driving shelf circulation and exchange and to measure the shelf waters' response over variable time and space scales. The influence of physical processes on chemical and biological distributions and their interactions is studied through interdisciplinary investigations, joint analysis and interpretation of data and joint publications. 103 refs., 14 figs.

Authors:
Publication Date:
Research Org.:
Miami Univ., FL (USA). Rosenstiel School of Marine and Atmospheric Sciences
OSTI Identifier:
6169483
Report Number(s):
DOE/ER/60355-4
ON: DE89010065
DOE Contract Number:
FG05-85ER60355
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; FLORIDA; COASTAL WATERS; SOUTH ATLANTIC BIGHT; PRODUCTIVITY; CONTINENTAL SHELF; ENVIRONMENTAL TRANSPORT; GEORGIA; MATHEMATICAL MODELS; PROGRESS REPORT; SEDIMENTS; TIDE; UPWELLING; WATER CURRENTS; WIND; ATLANTIC OCEAN; CONTINENTAL MARGIN; CURRENTS; DOCUMENT TYPES; FEDERAL REGION IV; MASS TRANSFER; NORTH AMERICA; SEAS; SURFACE WATERS; USA; 580500* - Oceanography- (1980-1989)

Citation Formats

Lee, T.N. Circulation and exchange processes on the South Atlantic Bight Continental Shelf: Progress report, July 1, 1988 to June 30, 1989. United States: N. p., 1989. Web.
Lee, T.N. Circulation and exchange processes on the South Atlantic Bight Continental Shelf: Progress report, July 1, 1988 to June 30, 1989. United States.
Lee, T.N. 1989. "Circulation and exchange processes on the South Atlantic Bight Continental Shelf: Progress report, July 1, 1988 to June 30, 1989". United States. doi:.
@article{osti_6169483,
title = {Circulation and exchange processes on the South Atlantic Bight Continental Shelf: Progress report, July 1, 1988 to June 30, 1989},
author = {Lee, T.N.},
abstractNote = {The work reported here is part of the Department of Energy sponsored Southeast US Continental Shelf Program. The DOE Program is a coordinated, multi-university, interdisciplinary investigation aimed at understanding the physical, chemical and biological processes in the South Atlantic Bight (SAB: east coast continental shelf region from Cape Hatteras to Cape Canaveral). The program is coordinated by Dr. David Menzel of Skidaway Oceanographic Institute. The activities of the other Program Investigators will be discussed briefly under Program Overview. The University of Miami component of the program involves an investigation of the physical processes regulating the transport and exchange of materials in the shelf waters. The guiding scientific objective of this work is to improve the capability for prediction of the physical environment. The principal scientific task is to determine the relative importance of the forces driving shelf circulation and exchange and to measure the shelf waters' response over variable time and space scales. The influence of physical processes on chemical and biological distributions and their interactions is studied through interdisciplinary investigations, joint analysis and interpretation of data and joint publications. 103 refs., 14 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1989,
month = 3
}

Technical Report:
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  • This report describes an investigation of the physical processes regulating the transport and exchange of materials in the shelf waters. The objective is to improve the capability for prediction of the physical environment. The principal scientific task is to determine the relative importance of the forces driving shelf circulation and exchange and to measure the shelf waters' response over variable time and space scales. The influence of physical processes on chemical and biological distributions and their interactions is studied through interdisciplinary investigations, joint analysis and interpretation of data and joint publications. 128 refs.
  • A continuation of the physical oceanography program to investigate circulation and exchange processes on the South Atlantic Bight (SAB) Continental Shelf is proposed. The transport and dispersal of materials entering the inner shelf zone with river discharge is not well understood at present. Climatological data, satellite imagery, and numerical modeling results indicate two removal routes for these nearshore waters: northeast transport and offshore exchange between Cape Fear and Savannah during the spring and summer when maximum run-off and northward winds prevail; and southward transport and offshore exchange near Cape Canaveral during the fall when southward winds prevail. We have conductedmore » interdisciplinary experiments to investigate the transport processes in the inner to outer shelf between Savannah, Georgia and Cape Fear, North Carolina. In addition we propose to continue synthesis and interpretation of current measurements. The analyses will focus on determining the coupling mechanisms of inner shelf and outer shelf waters with special emphasis placed on resolving the modes and rates of shelf water removal.« less
  • This study of continental shelf processes affecting the oceanography of the South Atlantic Bight (SAB) is part of the interdisciplinary DOE-sponsored South Atlantic Bight Program. Our part of the program involves hydrographic and nutrient characteristics of the region. Current research efforts in the SAB Program are being focused on the inner shelf region where effects of bottom friction, local wind forcing, river and estuarine discharge, and tides, which are all small scale processes, are important. Our major accomplishment during the past year was the completion of the FLEX (Fall Experiment) field study. Since most of our data collection is computerized,more » preliminary hydrographic data analysis was done on board ship during the cruise and preliminary results are available. These results will be presented in this report. We are just beginning our standard data processing and data analysis procedures. We continued the processing and analysis of SPREX data collected during April 1985. Work has also continued on the older GABEX I and II data sets. 8 refs., 19 figs., 2 tabs.« less
  • In the past year, we executed an extensive six week field effort, GABEX-II. Chemical analyses of samples have been completed and the large amount of physical data gathered has been reduced to a workable form. This report contains some of the first results. The GABEX-II measurements combined with other observations in the last and previous years continue to greatly increase our understanding of the South Atlantic Bight during the summer season, when the continental shelf is vertically stratified. Our field effort consisted of six cruises of five days duration in consecutive weeks to map the shelf with transhelf sections correspondingmore » to principal current meter sections. Also, the St. Augustine section was repeated twelve times at four day intervals and thus provided a cross shelf time series of the parameters measured.« less
  • GABEX II is a large scale observational effort involving three ships and a large array of current meter/temperature/pressure moorings. This particular contract was primarily responsible for the towed sensor /CTD/XBT/O/sub 2//nutrient measurements on the CAPE HENLOPEN, and the nutrient measurements from the other ships. The field effort consisted of six cruises of five days duration in consecutive weeks to map the shelf with transhelf sections corresponding to principal current meter sections. The observations are an excellent example of the summertime intrusion process in the South Atlantic Bight. Over the six week study period, at least two intrusion events occurred andmore » one middle shelf intrusion stranding was observed. It was demonstrated that significant amounts of nutrients are advected onto the shelf and assimilated.« less