Ocean Optical Modeling: The Complex Optical Field Structure and Dynamics of Coastal Case 2 Waters [report]

Robert H. Stavn
1997 unpublished
LONG-TERM GOAL Mechanistically-based models and algorithms for ocean optical phenomena are the overall goals for this project. This will ensure the generation of models that are robust and reliable. A standard optical model for the oceans should result. The primary area of interest, at present, is the optics of the coastal ocean system. SCIENTIFIC OBJECTIVES My efforts are directed to the construction of a valid, predictive Coastal Ocean Optical Model of Type 2 waters. The primary need is to
more » ... imary need is to account for the effects of suspended and resuspended particulate minerogenic matter. APPROACH I simulate the solution of the radiative transfer equation by Monte Carlo methods on the Cray T3E. Inherent optical properties from the literature of physics and oceanography are the input parameters. Parallelization of the Monte Carlo simulations has increased their efficiency by orders of magnitude. I utilize a standardized suite of known inherent optical properties called the NRL Optical Model (Weidemann, et al, 1995) . This method easily accounts for the complicated non-linearities introduced by multiple scattering, internal radiant emission, and internal apparent radiance sources, i.e. reflective bottoms and wave-disturbed water/air interfaces. New volume scattering functions published by Stramski and Mobley (1997) will also be investigated for their suitability in coastal ocean simulations. Open ocean paradigms have so far provided a successful basis for predictive models of the complex coastal ocean systems. The critical information needed for coastal optical prediction and modeling is the mass and size distribution of minerogenic particulates. This information is provided by Timothy R. Keen with a coastal ocean currents modeling initiative of the Naval Research Laboratory (NRL). Dr. Keen is able to predict mass and size distributions of resuspended minerogenics given information about
doi:10.21236/ada635324 fatcat:j7h5e7j7w5bk5g6yknbb7272cm