Attenuation of Visible Solar Radiation in the Upper Water Column: A Model Based on IOPs

Abstract

For many oceanic studies, it is required to know the distribution of visible solar radiation (EPAR) in the upper water column. One way to reach this is by remote sensing. This includes two components: First, EPAR at surface is calculated based on atmosphere properties along with the position of the Sun. Second, the vertical attenuation of EPAR (KPAR) is derived from products of ocean-color remote sensing. Currently, KPAR is estimated based on chlorophyll concentration ([C]) from ocean color. This kind of approach works well for waters where all optical properties can be adequately described by values of [C], but will result in large uncertainties for coastal waters where [C] alone cannot accurately describe the optical properties. In this paper, we present an innovative model that describes KPAR as a function of water's inherent optical properties (IOP).

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2005
Accession Number
ADA449647

Entities

People

  • Bradley Penta
  • Keping Du
  • Robert A. Arnone
  • Soochin Liew
  • Zhong P. Lee

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Atmospheres
  • Attenuation
  • Backscattering
  • Chlorophylls
  • Coefficients
  • Geography
  • Heat Transfer
  • Measurement
  • Oceans
  • Optical Properties
  • Optics
  • Radiation
  • Remote Sensing
  • Scattering
  • Simulations
  • Solar Radiation

Readers

  • Atmospheric Remote Sensing.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers