[1] Hydrothermal venting along the global mid‐ocean ridge system plays a major role in cycling elements and energy between the Earth’s interior and surface. We use the distribution of helium isotopes along an oceanic transect at 67°S to identify previously unobserved hydrothermal activity in the Pacific sector of the Southern Ocean. Combining the geochemical information provided by the helium i...

The importance of automating feature generalization is increasing in conjunction with demands for updated data. Determining which features to represent at myriad scales is an important part of this process. The Principles of Selection, as proposed by Töpfer and Pillewizer in 1966, provide cartographers with an empirically based generalization rule. Also known as the Radical Law, the principles ...

Logistic constraints and difficulties, as well as risks and economical impact of the bathymetric measurement activity, especially in shallow water, are known matters. This activity, in fact, normally implies the presence of human conductors and operators aboard motorized craft that often have to be transported in difficult to reach places or, even worse, have to operate in sites which are dange...

Landslides are one of the natural hazards that many countries around world facing. In Morocco, Rif regions most affected by these phenomena. Each year they cause enormous damage to road network and infrastructure, especially in our study region, province Larache.The region is subject several opening up construction projects, which why it necessary predict identify vulnerable areas beforehand, o...

COMPARING MANUAL AND SEMI-AUTOMATIC UNDERWATER IMAGERY ANALYSIS 1 APPROACHES FOR HARD BOTTOM BENTHIC MACROFAUNA MONITORING AT OFFSHORE 2 RENEWABLE ENERGY INSTALLATIONS 3 4 Aleksej Šaškov, Thomas G. Dahlgren, Yuri Rzhanov, Marie-Lise Schläppy 5 1 Marine Science and Technology Center, Klaipėda University, Lithuania 6 2 Uni Research, Bergen, Norway 7 Center for Coastal and Ocean Mapping/Joint Hydr...

The MVP and the FFCPT have been successfully integrated to arrive at a novel and tremendously efficient system to provide water column profile data and grain size analysis of the seafloor in support of numerous marine activities including science, hydrographic and naval applications. The MVP with FFCPT can make these measurements while the vessel is underway at 4-8 knots. The ability to collect...