Computer techniques for the solution of the high energy laser propagation problem
Abstract
The littoral of Monastir-Ksibet el Mediouni is a shore-flat which became progressively more and more eutrophic and has now reached an advanced stage of degradation. This platform is supplied with sediments by alluvial deposits and beach drift currents. Waste waters of the riverine urban centres are also discharged in this area. The geochemical study shows high total organic carbon (TOC) contents in the surface sediments being generally in the 2-6 % interval. The C/N ratio (generally inferior to 10), the hydrogen index (HI, generally superior to 300) as well as the gas chromatography (GC) of n-alkanes, show that the organic matter (OM) in the study area is of composite (marine and continental) origin, but dominated by marine contribution. This study provides evidence that the strong degradation of this littoral comes mostly from the accumulation of the algal OM within an environment characterised by limited water circulation and is the result of natural and human contributions.
- Publication:
-
Atmospheric effects on radiative transfer
- Pub Date:
- January 1979
- DOI:
- 10.1117/12.957945
- Bibcode:
- 1979SPIE..195..182C
- Keywords:
-
- Computer Techniques;
- High Power Lasers;
- Light Transmission;
- Nonlinear Optics;
- Numerical Analysis;
- Thermal Blooming;
- Algorithms;
- Diffraction Patterns;
- Electromagnetic Absorption;
- Fast Fourier Transformations;
- Fresnel Integrals;
- Laser Cavities;
- Wave Equations;
- Lasers and Masers