Accession Number:

ADA634600

Title:

Non Intrusive Monitoring of Ocean Surfactants with Nonlinear Optics

Descriptive Note:

Annual rept.

Corporate Author:

RENSSELAER POLYTECHNIC INST TROY NY DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1997-09-30

Pagination or Media Count:

6.0

Abstract:

LONG-TERM GOAL. Wind-wave coupling, wave damping, surface turbulence, and airsea gas exchange along with the reflection, transmission, emission, and absorption of electromagnetic radiation at the airsea interface are all dictated by the molecular level structure and chemical composition of the top several molecular layers which define this interface. This research effort is directed at obtaining and using knowledge of molecular level structure and composition of the airsea interface to understand and predict macroscopic interfacial physicochemical properties. SCIENTIFIC OBJECTIVES. Surfactant both soluble and insoluble concentration gradients and dynamic perturbations surface waves and interfacial flows at the airwater interface lead to large measurable changes in the thermodynamic, electromagnetic, and fluid properties of this interface as well as changes in mass transport across this interface. In addition, the macroscopic perturbations on the interface such as surface waves or interfacial flow create and enhance the interfacial chemical and structural gradients. Knowledge of how these interfacial microscopic molecular level structural and chemical composition gradients correlate with macroscopic changes provides a first step in understanding and quantifying the relationships between these interfacial phenomena.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE