Accession Number:

ADA160467

Title:

Analysis of the Raman Backscattering Technique for the Remote Measurement of Subsurface Temperature and Salinity. Volume 2.

Descriptive Note:

Corporate Author:

COMPUTER GENETICS CORP WAKEFIELD MASS

Personal Author(s):

Report Date:

1982-08-01

Pagination or Media Count:

89.0

Abstract:

The specific conclusion from this research is that the laser Raman method is a feasible technique for the measurement of subsurface water temperature and salinity. In the past year and a half temperature gradients were remotely measured by Raman scattering along a water column both in a large laboratory facility at Dalhousie University and under field conditions in a fresh water reservoir at Littleville, Massachusetts. The analysis of the Dalhousie data has further shown that salinity can also be remotely measured along a water column. Sufficient feasibility demonstrations have been completed to show that the water Raman technique, using a polarization ratio technique, can successfully measure temperature at an accuracy of 0.5 C to 1 C to depths of at least two diffuse attenuation lengths, i.e., to a depth of 2 times 1K. Analytic studies have also predicted higher accuracies and deeper penetration if improved instrumentation is used.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE