Instruments for Measuring Light Scattering in the Ocean

Period of Performance: 08/20/1998 - 08/20/2000


Phase 2 SBIR

Recipient Firm

Hobi Labs (sequoia Scientific, Inc)
P.O. Box 859
Moss Landing, CA 95039
Principal Investigator

Research Topics


Characterizing and understanding the optical properties of ocean waters has wide applications ranging from underwater imaging to lidar to ocean-color remote sensing. To properly design optical systems that observe the oceans, and to accurately interpret their data, it is necessary to have knowledge of the absorption and scattering properties of the ocean waters in which they operate. Although absorption can already be measured by a variety of techniques and instruments, measuring light scattering remains the most outstanding measurement problem in ocean optics today. We propose to address this problem by developing a new instrument that can accurately measure the volume scattering function (VSF) of ocean waters. This sensor will be an in-situ profiling instrument that measures the VSF from 0.1 to 170 degrees. The technology we will develop in the Phase II program will be "modular" in the sense that we will be able to build in-situ VSF sensors for measuring specific aspects of light scattering in the ocean, including near-forward and backward scattering, as well as polarization and turbulence effects.