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

Report Date:

1994-05-01

Pagination or Media Count:

264.0

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 hydrodynamicwater 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 RiverRehoboth 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 RiverRehoboth 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.

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE