Focus Stories

Every month we will focus on a specific theme, featuring a selection of articles which have previously been published in the Hydro International magazine. By including a mix of older and more recent articles, we will present a complete recap of the subject. Furthermore, we will be bringing you a bi-weekly round-up of ‘Focus Stories’ related to the theme through our newsletter (sign up here). The theme for February 2016 is:

Multibeam Echosounders

Focus on: Multibeam Echosounders

Developments and Trends in Multibeam Echo Sounders

The multibeam echo sounders available on the market are constantly evolving as technology advances and as sonar producers seek new ways of refining and utilising the products. In this article we will provide a snapshot of current products and trends from the dominant (high-end) sonar producers focused on survey-grade products. Ole Kristensen, EIVA... (read more)

Getting to the Bottom of Our Ocean

Two-thirds of our planet surface is covered by water and yet what lies underneath is a mystery to us. We know the ocean controls our weather and climate and is home to an estimated half of all species on Earth. However, 95% of the ocean still remains unexplored. We have higher resolution maps of the Moon and the surface of Mars than we do of our se... (read more)

Opportunistic Multibeam Surveying

Currently only ten to fifteen percent of the ocean floor has been mapped at resolutions of 100-metre pixel size or better and the vast majority of this mapped area is within territorial waters. One way to significantly increase seafloor coverage is to outsource data collection to non-hydrographic vessels or ships of opportunity. However, data curre... (read more)
Shannon Hoy, UK, Dr. Laura F. Robinson, UK/USA, and Dr. Veerle A.I. Huvenne

Technology in Focus: Multi-beam Echosounders

The evolution of multi-beam echo sounders (MBES) is leading to systems with enhanced capabilities in their traditional markets, but also provides features to allow the expansion of their use into new areas and applications. This short review highlights some of the features of the latest generation of systems. The attributes of an MBES system are tr... (read more)

Very Shallow Water Survey - a New Approach

Hydrographic surveys in very shallow waters can have several applications such as nautical chart updating, performing environmental monitoring and characterisation, determination of dredged volumes, establishing navigational channels or defining general coastlines. When full bottom search is required, surveys in such areas will involve many hours o... (read more)
João Duarte Ventura de la Cruz, João Vicente, Luis Santos



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