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...

me first paper on narrow-beam echosounding was published in 1960. Since then, the advantages of the principle of multibeam swath bathymetry for seabed mapping have been recognized by many institutions working in the field of underwater area mapping. We intend to review some of the developments the multibcam cchosoundcr has undergone in order to better understand the challenges facing the field ...

[1] Ontario Lacus is the largest and best characterized lake in Titan’s south polar region. In June and July 2009, the Cassini RADAR acquired its first Synthetic Aperture Radar (SAR) images of the area. Together with closest approach altimetry acquired in December 2008, these observations provide a unique opportunity to study the lake’s nearshore bathymetry and complex refractive properties. Av...

Based on assumptions of an inviscid fluid and weakly rotational flow, a set of depth-averaged governing equations are developed to model long internal waves in two horizontal dimensions. These waves are assumed to be weakly nonlinear and weakly dispersive, existing in a two-layer system with a small density difference between the layers. No restriction is placed on the bathymetry or the dominan...

-Numerical computations of tsunamis are made for the 1992 Nicaragua earthquake using different governing equations, bottom frictional values and bathymetry data. The results are compared with each other as well as with the observations, both tide gauge records and runup heights. Comparison of the observed and computed tsunami waveforms indicates that the use of detailed bathymetry data with a s...