New Jersey Water Science Center
Great Falls of the Passaic River at Paterson, N.J.
NEW JERSEY PROJECTS
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Barnegat Bay Modeling
Project Title:Barnegat Bay Modeling
The primary objectives of this proposed study are to examine the water-quality causes of eutrophication in the BB-LEH Estuary and evaluate options for addressing this problem. This will be accomplished by developing mathematical models to evaluate current flow and water-quality conditions and potential future changes in the estuary. The models will account for sediment transport processes in the estuary as well as flow/loads from the land portion of the watershed.
The proposed modeling analysis will provide:
Results will provide insight to the development of nutrient-loading criteria that are linked, along with other factors, to an acceptable level of estuarine productivity.
Statement of Problem
The development of hydrodynamic and water-quality models is proposed to provide NJDEP with the necessary analytical capability to address critical management issues relating to water quality and eutrophication in the Barnegat Bay-Little Egg Harbor Estuary.
Strategy and Approach
To adequately address these issues within the BB-LEH Estuary, a multidimensional, time-dependent, coupled hydrodynamic and water-quality modeling approach is proposed. Modeling eutrophication in the shallow bays and river mouths that comprise the BB-LEH Estuary requires an understanding of complex interactions among many processes: the circulation of water, temperature and salinity distributions, the cycling of nutrients and transformation pathways, algal dynamics, dispersion of chemical and thermal loads, benthic exchanges, and sediment transport and diagenesis. Two main modeling frameworks proposed for the BB-LEH Estuary are as follows: