Abstract
Abstract : The long-term goal of the project is to investigate the distributions of chromophoric dissolved organic matter (CDOM) in the New York/New Jersey Harbor and New York Bight system so as to facilitate a deeper understanding of the source and processes that control CDOM distributions in estuarine and coastal waters. CDOM source strengths and photochemical degradation processes were incorporated into a calibrated/validated three dimensional estuarine and coastal ocean forecast circulation model. The model results were compared with high resolution 4-dimensional measurements of physical water properties as well as CDOM data. The detailed distributions of modeled currents, temperatures, salinities, water levels and CDOM were used to help interpret the CDOM data. The objective was to develop a capability for incorporating CDOM source strengths and chemical processes into the currently operational New York Harbor Observation and Prediction System (NYHOPS, www.stevens.edu/maritimeforecast/). The first year objective was to build CDOM into NYHOPS and conduct simulations of CDOM distributions initially treating CDOM as a conservative tracer on the original NYHOPS model grid. In the second year we updated NYHOPS and its CDOM component to a higher-resolution model grid, updated CDOM sources and strengths in the model based on field observations, and included in the model CDOM photodegradation due to ultraviolet light based on a first-order decay rate measured through laboratory incubation experiments.
Published Version
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