Accession Number:

ADA634192

Title:

Optical Variability and Bottom Classification in Turbid Waters

Descriptive Note:

Corporate Author:

UNIVERSITY OF SOUTH FLORIDA SAINT PETERSBURG DEPT OF MARINE SCIENCE

Report Date:

1997-09-30

Pagination or Media Count:

7.0

Abstract:

LONG-TERM GOALS. The development of an optical methodology, valid for Case II coastal waters, for the remote classification of the sea bottom including sediment type calcareousquartz sand, clay, mud, benthic flora benthic diatom and algal mats, seagrasses, green and red macrophytes, and bottom structure reef, rock. The methodology will exploit elastic and inelastic spectral information as well as 3-dimensional size, shape, and texture information determined by optical methods. OBJECTIVES. The deconvolution of the components of the underwater and water-leaving light fields in coastal waters. The determination of feature vectors, including 3-D morphology, which hold information unique to different bottom types and structure for use in an automatic classification strategy. APPROACH This project utilizes the Bottom ClassificationAlbedo Package BCAP, a suite of optical instrumentation developed under previous ONR funding, to acquire the hyperspectral database required to deconvolve the components of the underwater and water-leaving light fields. In situ instrumentation includes a 512-channel upwelling radiometer, a 512-channel downwelling irradiometer, two, 6-channel, intensified bottom cameras, a dual-laser, optical altimeterchlorophyll probe, instrumentation to measure attenuation, absorption, and fluorescence at various wavelengths, and a real-time microtopography assembly. The package is configured for deployment on either a remotely operated vehicle ROV or an autonomous underwater vehicle AUV.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE