apres avoir presente l'origine, ie spectre de rayonnement et la totalite' de l'energie solaire arrivant sur la terre, nous citons tout d'abord les methodes et moyens d'utilisation de l'energie solaire dans ie passe(. nous presentons ensuite, les capteurs plans, concentration lineaire et ponctuelle; les moteurs et centrales solaires. puis nous discutons des generate...

A shallow water theory is developed which applies to surface wave propagation over structured bathymetry comprising rapid abrupt fluctuations in depth between two smoothly varying levels. Using a homogenization approach coupled the depth-averaging process underpins modelling, governing equations for elevation are derived explicitly relate local spatially anisotropy of speeds properties microstr...

The use of passive satellite sensor data in shallow waters is complicated by the combined atmospheric, water, and bottom signals. Accurate determination of water depth is important for monitoring underwater topography and detection of moved sediments and in support of navigation. A Worldview 2 (WV2) image was used to develop high-resolution bathymetric maps (four meters) that were validated usi...

Earth-observing satellites, such Landsat, provide many multitemporal images of earth, either water body or land. Using spectral water body characteristics and field measurement, bathymetry (water depth) of the study area can be calculated for each image recorded/acquired at different time. Four multitemporal spatial images were used for generating bathymetry images which were arranged as multil...

........................................................................................................................ 5 ACKNOWLEDGEMENTS ....................................................................................................... 6 INTRODUCTION ................................................................................................................... 7 GEOLOGICALSETTING .....

This document contains information about the fundamentals of beach profiles and is intended to help teachers improve their content knowledge of ocean wave forces and coastal geomorphic response. Background addresses some of the basic information about waves and the beach profile. Methods of Measuring Beach Profiles presents the history of how coastal scientists have developed techniques of meas...

Article history: Received 7 August 2007 Received in revised form 9 June 2008 Accepted 10 June 2008 Available online 18 June 2008

This paper describes the bathymetric imaging and pro cessing of the GLORI B system GLORI B is a deep ocean sidescan sonar surveying device which is able to produce bathymetry measurements and images of the sea oor in swaths of up to km wide The basics of the GLORI B system are described and then the vari ous stages of processing the received data to transform it into a geographically registered...