The Backscattering Enigma in Natural Waters
Abstract
LONG TERM GOALS. One of the fundamental problems in ocean optics over the past several decades has been a lack of understanding of the source of backscattering in the ocean. Because of experimental limitations and the limitations in available theoretical models, our knowledge of the causative agents for backscattering remains poor. Experimentally, we have been limited by a lack of scattering sensor instrumentation and a methodology for routine measurement of the submicron particle size distribution. Theoretically, most models have used Mie theory with the hope that natural particles of complex shape and structure can be approximated well by homogeneous spheres. For the Navy, poorly parameterized backscattering compromises applications involving the interpretation of passive and active optical detection methods. This is particularly true in coastal regions where current inversion models fail because the effects of changing particle composition are not adequately understood. Our long term goal is to better understand the sources and distribution of backscattering in natural waters. Related to this specific project goal, my larger research goals are to better understand the physical, biological and chemical mechanisms that control the spatial-temporal distribution of phytoplankton populations and dynamics, and how these same mechanisms affect the optical structure and fine-structure (e.g. thin-layers) in natural ecosystems.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2006
- Accession Number
- ADA629965
Entities
People
- James M. Sullivan
Organizations
- University of Rhode Island