Analysis of the Raman Backscattering Technique for the Remote Measurement of Subsurface Temperature and Salinity. Volume 2.
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 (1/K). Analytic studies have also predicted higher accuracies and deeper penetration if improved instrumentation is used.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1982
- Accession Number
- ADA160467