Accession Number:

ADA526945

Title:

Measurements of Wave-Induced Fluctuations in Underwater Radiance Under Various Surface Boundary Conditions

Descriptive Note:

Research rept.

Corporate Author:

SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB

Personal Author(s):

Report Date:

2009-01-01

Pagination or Media Count:

10.0

Abstract:

The principal objective of our project is to measure wave-induced fluctuations in underwater light field under various sea-surface boundary conditions. The specific objectives include the characterization of wave-induced fluctuations in downwelling irradiance and radiance as a function of various environmental parameters such as windwave conditions, sky radiance distribution, direction of radiance observation, depth of observation, and water optical properties. The central theme of our study is to characterize light fluctuations at shallow depths caused by surface wave focusing under clear skies. The focusing events are the most intense fluctuations that occur on temporal scales of a fraction of a second. The most prominent manifestation of this phenomenon is high-amplitude shortduration pulses of focused light, which we refer to as light flashes Dera and Stramski, 1986 Stramski, 1986. The two primary objectives for this reporting period were i analysis of data collected during the RaDyO experiment in the Santa Barbara Channel in September 2008, and ii collection of data during the Hawaii RaDyO experiment in August-September, 2009.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Test Facilities, Equipment and Methods
  • Miscellaneous Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE