Distribution and Cycling of Dissolved Organic Carbon and Colored Dissolved Organic Carbon on the West Florida Shelf

Abstract

The long-term goal of this project is to determine sources, sinks and dynamics of Colored Dissolved Organic Matter (CDOM) optical properties on spatial and temporal scales relevant to physical/biogeochemical/optical modeling efforts on the West Florida Shelf. Predictive capability is needed for modeling in-water light attenuation and visibility in coastal regions. CDOM is one of the most significant and least understood light attenuating components, hence improved understanding of its optical properties, dynamics and spatial and temporal variability will result in improved radiance models in the littoral zone. The short-term goals are to characterize spatial and temporal variability in optical properties by determining sources and sinks of CDOM and Dissolved Organic Carbon (DOC) for the West Florida Shelf. The loss of CDOM by dilution/physical mixing and photobleaching will also be investigated. Photodegradation rates and effects of sunlight on CDOM optical properties and CDOC/DOC relationship as a function of CDOM source will be determined. This information will be applied to bio-optical and predictive light field models.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2006
Accession Number
ADA522141

Entities

People

  • Paula Coble

Organizations

  • University of South Florida

Tags

Communities of Interest

  • Autonomy

DTIC Thesaurus Topics

  • Chemistry
  • Coastal Regions
  • Dynamics
  • Efficiency
  • Environmental Monitoring
  • Fluorescence
  • Littoral Zones
  • Mississippi River
  • Oceanography
  • Offshore
  • Optical Properties
  • Regions
  • Rivers
  • Salinity
  • Seasonal Variations
  • Suspended Sediments
  • Water

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography
  • Marine Ecotoxicology