Validation of atmospheric propagation models in littoral waters

Spectral Analysis of Radiation-Induced Natural Convection in Littoral Waters

The mixing of pollutions and sediments in near shore regions of natural water bodies depends heavily on the characteristics such as the strength and frequency of flow instability. In the present paper, the instability of natural convection induced by absorption of solar radiation in littoral regions is considered. Spectral analysis is conducted on the quasi-steady state flow to reveal the power...

COMPARISON OF TWO ATMOSPHERIC CORRECTION ALGORITHMS IN COASTAL WATERS FOR SeaWiFS IMAGES: VALIDATION AND SENSITIVITY STUDY

The use of satellites to monitor the color of the ocean requires effective removal of the atmosphere signal. The methods for treating the atmosphere have depended on the high absorption of red and near-infrared (NIR) light by water. In coastal waters, the presence of water-leaving radiances in the NIR introduces two sources of error into the removal of the aerosol. As a result, the atmospheric ...

Benchmarking two simulation models for underwater and atmospheric sound propagation

Computational wave propagation models are widely used in underwater and atmospheric sound propagation simulation. In most realistic cases the physical domains involved are irregular. We have developed finite element techniques, applied to general irregular meshes and coupled with discrete, artificial absorbing boundary conditions of nonlocal type, for the Helmholtz equation and its ‘standard’ p...

Experimental Validation of Percolation-based Models for Propagation Prediction

Experimental validation of photoacoustic k-space propagation models

Propagation models to predict the temporal output of a sensor in response to an arbitrary photoacoustically generated initial pressure distribution have been developed. k-space (frequency-wavenumber) implementations have been studied with the aim of producing fast and accurate predictions. The k-space models have several advantages. They may be implemented using the Fast Fourier transform, whic...