Monte Carlo simulations for interpretation of irradiance measurements from moored instruments: preliminary results

Howard R. Gordon

doi:10.1117/12.140663

31 December 1992 Monte Carlo simulations for interpretation of irradiance measurements from moored instruments: preliminary results

Howard R. Gordon

Author Affiliations +

Proceedings Volume 1750, Ocean Optics XI; (1992) https://doi.org/10.1117/12.140663
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The recent development of moorable underwater spectral radiometers provides the possibility of long-term observations of bio-optical properties of the ocean at a sampling frequency of a few seconds to minutes. However, interpretation of the observed attenuation coefficients in terms of variations in the inherent optical properties (IOPs) or the biological properties is not straightforward for several reasons. First, even in a homogeneous ocean the attenuation coefficient K_d will be a function of depth, illumination at the surface, and the surface roughness, as well as the IOPs of the ocean. Next, a moored instrument cannot measure K_d as a function of depth but instead measures the mean K_d between discrete depths. Finally, K_d will depend on the (unknown) vertical structure of the optical properties of the water column. The dependence of the mean K_d on these factors is studied with Monte Carlo simulations of radiative transfer in the ocean-atmosphere system. Preliminary results from this study are presented.

Citation Download Citation

Howard R. Gordon "Monte Carlo simulations for interpretation of irradiance measurements from moored instruments: preliminary results", Proc. SPIE 1750, Ocean Optics XI, (31 December 1992); https://doi.org/10.1117/12.140663

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