In Situ and Laboratory Measurements of the Optical and Photochemical Properties of Surface Marine Waters

Abstract

The principal long-term objective of this work is to determine what factors control the distribution and dynamics of the chromophore-containing constituents of dissolved organic matter (CDOM) in marine and estuarine waters. Two important secondary objectives are 1) to elucidate the photochemical properties of the CDOM and how photochemical reactions affect the optical properties and secondary reactivity of the CDOM, 2) to obtain a clearer understanding of the nature of the underlying light-absorbing constituents that produce the absorption spectrum of the CDOM. Field measurements are employed to determine the distribution of CDOM and its impact on the aquatic light field, whereas a combination of field and laboratory experiments are used to test mechanisms of its formation and loss.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2001
Accession Number
ADA626252

Entities

People

  • Neil V. Blough

Organizations

  • University of Maryland

Tags

DTIC Thesaurus Topics

  • Absorption
  • Absorption Spectra
  • Aromatic Hydrocarbons
  • Chemistry
  • Chesapeake Bay
  • Chromophores
  • Cyclic Hydrocarbons
  • Dynamics
  • Fluorescence
  • Low Temperature
  • Measurement
  • Optical Properties
  • Organic Compounds
  • Photochemical Reactions
  • Short Wavelengths
  • Spectra
  • Universities

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Coastal Oceanography