Oceanology International 2016 Provides Update on Ocean Technology

Promising Event for Oceanographic and Hydrographic Community
Hydro International traditionally prepares a preview of Oceanology International to help you prepare for the highlights of what businesses on the show floor will be presenting. The Hydro International preview offers you a selection of the more than 350 companies from 32 countries that will be present at the trade show. The total surface is over 8,000 square metres so consider wearing your walking boots!  Joost Boers, editorial manager, Hydro International There will also be is a conference during Oceanology focusing on streams like Trade & Innovation; Marine Technology and Services Sector Role in the Blue Economy; Marine Renewables; Positioning & Metrology; Green Shipping;... (read more)
2016-03-01 11:47:03

Motion Sensor Performance

Direct Comparison Using 2005 Common Dataset
Integral components of a swathe bathymetry system are the motion and heading sensors. The current trend is to offer a system that combines both components in one package, either as an aided inertial sensor or as two sensors linked by component software. The quality of these inertial sensors has a direct effect on the quality of the final survey. This paper compares five leading available sensors, concluding that they produce markedly differing results. Most surveyors when purchasing or specifying a particular inertial system for a project will base their decision on information generated by the manu-facturers, which often shows all... (read more)
2008-01-01 01:00:00

Oceanology International to have Three Points of Focus

When Oi08 opens at the ExCeL centre in London’s Docklands on 11 March, the exhibition and its accompanying conference will focus on the three important issues that have begun to dominate thinking in ocean science and technology: climate change, meeting future energy demands, and ensuring environmental and civil security. These have become interconnected issues, with expertise now moving freely between each of these apparently specialised sectors.<P> With a 3-day conference accompan­ying this major exhibition, it is almost inevitable that public concerns about climate change will attract considerable interest. The role of the oceans in global warming is likely to take... (read more)
2008-03-12 12:00:00

Hydrography After Huge Earthquakes

Hydrographic Activities in the Aftermath of the Earthquake and Tsunami Disaster in Japan
An earthquake of unprecedented magnitude hit the east coast of Japan on 11 March 2011. A tsunami, a large wave caused by the earthquake, crashed into the ports and coastal regions, flowing into the mainland and sweeping away everything in its path. The Japan Coast Guard performed intensive hydrographic surveys immediately after the earthquake so that ports and harbours could be opened as soon as possible. Co-operation with local port authorities in the early stages was crucial for removing dangers in the harbour passages promptly. These experiences have shown that hydrographic activities after huge earthquakes are indispensable for safety of... (read more)
2011-09-08 01:58:44

Surveying in the Ross Sea

The deepwater research vessel Tangaroa of the National Institute of Water & Atmospheric Research (NIWA) of New Zealand undertakes regular research expeditions to the Antarctic waters. In the last eight years, this 70m ice-strengthened vessel has successfully completed seven voyages to Antarctica: three of which were to the Ross Sea. This article describes her 48-day voyage in 2006. During this latest voyage, she once again collected data to extend our knowledge of the geophysical and biological make-up of the Ross Sea region Looking Back Tangaroa ’s first voyage to the Ross Sea was in February–March 2001, when it undertook a... (read more)
2007-05-09 12:00:00

Raw Data as Information Source

Model for Remediation Design Study of Southeast Asian Port Basin
For hydro- and topographic surveying companies it is common to gather data in the field and process it into formats for presentation. Nowadays, technology  provides more and more solutions that enable analysis of the extensive amounts of measured data points directly, instead of the post-processed data and figures. Hence, using the raw data with fewer processing steps. Processing and post-processing of elevation data into maps, charts and cross sections will remain an important deliverable from a hydro- and/or topographic survey. However, the raw data itself will play an increasingly important  role with the availability of current technologies, as has been... (read more)
2016-03-01 10:51:32

A Farewell to Times Past

HI Interviews Admiral Steve Ritchie, Columnist ‘As it Was’
We have all enjoyed the column entitled ‘As it Was’, contributed since the very first issue of Hydro international by Admiral Steve Ritchie. The piece has always been very much appreciated and we have received many positive reactions to it. Steve’s lifetime has encompassed the technical revolution in hydrography; it is seventy years since he entered the surveying service and forty since he became UK Hydrographer. So that in terms of memory alone he was the perfect man to carry the ‘As it Was’ column. But he also had a reputation as author of some interesting publications, including his books... (read more)
2007-03-02 12:00:00

Shallow Inland Water Bathymetry Meets IHO S-44 Special Order

Application of the Kongsberg GeoSwath System
For many years, the GeoSwath system from Kongsberg GeoAcoustics has been providing an efficient simultaneous swath bathymetry and sidescan seabed mapping solution with accuracies that meet the IHO S-44 Special Order standard for hydrographic surveys. GeoSwath systems have been fitted to a number of small crafts and have been utilised to conduct bathymetric surveys of lakes, ponds, dams and rivers. This article describes two of the vessels that have been employed to undertake this area of work. The use of Unmanned Surface Vessel (USVs) allows surveying in locations and situations in which deployment of conventional platforms is not practical or... (read more)
2018-02-27 01:01:18

Supply Hydrographic Personnel

Hydro INTERNATIONAL Interviews Johan Stam, Business Development Manager, Atlas Services Group
There is a global shortage of hydrographic surveyors. The industry is faced with an interesting challenge and looks to specialised education facilities and personnel suppliers to assist in solving this problem. Even in times of high unemployment it can be difficult to find sufficient skilled personnel to carry out hydrographic survey work in the offshore environment. Hydrographic educational institutions around the world are struggling to attract enough students, resulting in noticeable shortages of trainees within the survey departments of large and small survey contracting companies. Although working conditions have improved considerably over recent decades, the environment in which hydrographic surveyors... (read more)
2008-01-01 01:00:00

Solving the Uncertainty Management Puzzle

Understanding the Limitations of Instrumentation
As shipping companies continue to make their operations more cost efficient and environmentally friendly, the demand for high density data has increased. Uncertainty management is a cornerstone to sound Geomatics practice and it’s the uncertainty values that will drive the next generation high density bathymetry surveys. The main goal of uncertainty management is to allow a survey organisation to accurately determine their adherence to international survey specifications (e.g. IHO S44 5th Edition) and/or to internal specifications. Having realistic estimates for uncertainty, hydrographic surveyors can use this information to adequately design, plan and execute survey methodology and special procedures to ensure... (read more)
2011-07-18 02:30:43
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