Accession Number : ADA282922


Title :   Hydrodynamics and Eutrophication Model Study of Indian River and Rehoboth Bay, Delaware


Descriptive Note : Final rept.


Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB


Personal Author(s) : Cerco, Carl F. ; Bunch, Barry ; Cialone, Mary A. ; Wang, Harry


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA282922


Report Date : MAY 1994


Pagination or Media Count : 264


Abstract : Indian River and Rehoboth Bay are two shallow bodies that form part of the Delaware Inland Bays system. The Bays are subject to eutrophication problems that accompany agricultural, commercial, and recreational development in the coastal zone. A hydrodynamic/water quality model package was applied to provide a management tool to address eutrophication issues in the two Inland Bays. The CH3D hydrodynamic model simulated transport in Indian River/Rehoboth Bay for 3 years: 1988, 1989, and 1990. Two-dimensional depth-average transport was calculated on a grid containing over 2,000 cells roughly 50 by 100 m in lateral and longitudinal extent. Integration time step was 30 sec. Performance of the model was verified by comparison to observed tide records, current measurements, and salinity data. The water quality model was applied in a continuous mode to simulate conditions in Indian River/Rehoboth Bay for the years 1988-1990. Transport for water quality simulation was provided by the CH3D hydrodynamic model. Other water-quality forcing functions included nonpoint- source loading of nutrients and organic matter, point-source loading of nutrients and organic matter, atmospheric nutrient loading, sediment-water nutrient and oxygen exchanges, oceanic material exchanges, and seasonal light attenuation.


Descriptors :   *MATHEMATICAL MODELS , *EUTROPHICATION , DATA BASES , COMPUTERIZED SIMULATION , TWO DIMENSIONAL , COMPARISON , GRIDS , DEPTH , NUTRIENTS , NITROGEN , OXYGEN , TRANSPORT , ATTENUATION , RIVERS , SALINITY , WATER QUALITY , PHOSPHORUS , HYDRODYNAMICS , EXCHANGE , SEDIMENTS , HYDROGRAPHIC SURVEYING , TIDES , ESTUARIES , WATER ANALYSIS , ATMOSPHERICS , DELAWARE BAY


Subject Categories : HYDROLOGY, LIMNOLOGY AND POTAMOLOGY
      COMPUTER PROGRAMMING AND SOFTWARE


Distribution Statement : APPROVED FOR PUBLIC RELEASE