NaviModel DTM Software

NaviModel software for ocean mapping, data analysis and interpretation provides intuitive 3D visualiasation of infinite survey data sets by import of multiple data formats and sources using user-defined templates. NaviModel includes features for data cleaning either manually or through use of advanced semi or fully automated tools as well as creation of own filters by use of plug-in function. Digital terrain models (DTM) are displayed in real-time fly-through fashion featuring different color modes and palettes in addition to adjustment of light source. Difference models and volume calculations are visualised by colouring the resulting DTM in difference modes. Terrain manipulation is... (read more)
2010-02-18 09:34:00

Automated Monitoring System

BioSonics is to unveil its latest generation of Automated Monitoring Systems at the OCEANS 2010 conference next month. This sonar-based tracking and monitoring system centres around BioSonics focused split-beam hydro-acoustic technology for the underwater assessment of marine life and other targets of interest. BioSonics split-beam transducers provide information on target location, size, swimming speed, and direction. Utilising an integrated orientation sensor and a dual-axis rotator, the resulting system can be programmed to scan and rotate at any desired angle or interval, thereby dramatically expanding the sampling volume. An echo sounder control unit provides automated data processing and storage as well... (read more)
2010-08-23 02:55:45

Three Export Cable Circuits for Offshore Wind Farm

Royal Boskalis Westminster N.V. (Boskalis) has been awarded the offshore export cable installation contract for the Hornsea 2 offshore wind farm. The contract with a value greater than €100 million was awarded by Ørsted Wind Power A/S and consists of three export cable circuits with a total length of approximately 380 kilometres. Installation and Protecting The project scope includes the preparation of the offshore export cable route (geophysical survey, boulder clearance and seabed levelling through dredging), and the installation and protection of the cables. The three 130 kilometre long export cables will connect the offshore substation to the onshore substation... (read more)
2019-04-29 12:46:12

Aberdeen Quay Facelift and Workboat

Aberdeen Harbour Board has announced the completion of a GBP4 million refurbishment project at Commercial Quay East, while welcoming the arrival of a new GBP1 million workboat. The Sea Herald, fourteen metres long, designed by Macduff Ship Design and built by Macduff Shipyards, is equipped with a multi-beam hydrographic survey suite. A deck crane, twin 350hp engines giving a speed of 9.6 knots and bollard pull of 9.5t, which will enable her to undertake a variety of tasks from debris removal and bed levelling work to hydrographic surveys and occasional pilot duties.   (From left to right) Operations director and... (read more)
2011-05-18 03:10:20

Cleaning and Improving Cartagena's Water Quality

Construction of a stabilised tidal inlet in Colombia
This article gives an insight into the topographical and hydrographic aspects of the construction of a stabilised tidal inlet in Cartagena, Colombia. The purpose of this tidal inlet was to improve the water quality of the highly contaminated Ciénaga de la Virgen lagoon at the outskirts of Cartagena by forcing a current of clean water through the shallow Ciénaga de la Virgen. Works for this project consisted of the construction of breakwaters, a box culvert, canal, sluices, separation wall, dredging and beach replenishment. Project preparation began in 1998 by checking all available benchmarks as defined in the design drawings. A... (read more)
2008-01-01 01:00:00

Geodesy on the Water’s Edge

Applications of Accurate Heights in the Coastal Zone
The intertidal zone, where coastal wetlands provide the first buffer to storm energy and sea level rise, has not traditionally been a focus of geodetic surveying. However, the increasing vulnerability of coastlines to environmental change, increasing population densities near the coast, and increasing reliance on coastal goods and services have all increased the need for accurate intertidal elevations. Advances in vertical positioning now enable the application of geodetic tools to the intertidal zone, where centimetre-level changes in elevation can have dramatic consequences on coastal resources. Determining accurate elevations within coastal wetlands improves the understanding of processes affecting wetland dynamics and... (read more)
2007-05-09 12:00:00

Capt. Albert E. Theberge

Albert E. Theberge (Skip)'s career as a coast surveyor followed a somewhat ­traditional path. He graduated from the Colorado School of Mines in 1969 as a Geological Engineer and entered ESSA Corps, a descendant organ­isation of the commissioned service of the United States Coast and Geodetic Survey. In 1970 this became NOAA Corps with the formation of the National Oceanic and Atmospheric Administration (NOAA) within the US Department of Commerce. He retired from NOAA Corps in late 1995, with field stops along the way including four NOAA survey ships, a few field parties involved in such matters as astronomic latitude and longitude, levelling,... (read more)
2017-05-31 10:02:46

Changing Role of the Hydrographic Surveyor

Over the last year, I have been in a very privileged position of being an active member of a design team responsible for a major re-organisation within my company. During this process I have had to look long and hard at the changing role of the modern Hydrographic Surveyor. One of the visible changes has been the ratio of male to female surveyors. When I first started in this business, I must admit that I had a very limited view of the ramifications of my work as a field surveyor. At that time my main concern was how to achieve... (read more)
2008-01-01 01:00:00

CEE JET Hydrographic Survey Jet Ski Delivered for Gold Coast Beach Surveys

After learning about the prospect of using a jet ski with a singlebeam echosounder to conduct bathymetric surveys in a fraction of the time, the Gold Coast council in Australia purchased its first CEE JET hydrographic survey system from CEE HydroSystems. With a survey-grade CEESCOPE singlebeam echosounder, RTK GNSS, on-board computer for data collection and HYPACK software, the CEE JET allows collection of high-quality bathymetry data in the often substantial area of the surf zone. Australia's Gold Coast stretches along 57 kilometres (35 miles) of coastline and the region is home to over half a million people. In order to... (read more)
2016-02-23 09:37:21

Workshop HSB with CEDA-NL?

On 22 January, a workshop was organised with the ­Netherlands section of the Central European Dredging Association (CEDA). Over 130 attendees (70%/30% CEDA/HSB) assembled at the dredger yard of the host, IHC – the world market leader of dredging equipment – at Sliedrecht, one of the cradle towns of the dredging industry. Kicking off the evening with a perfect warm buffet, drinks and relaxed atmosphere, the presentation section started at 19:30 hrs and was opened by CEDA Chairman Johan Pennekamp welcoming all those present on this first joint event and passing over to the evening’s chairman Wim van Wieren. The... (read more)
2008-03-12 12:00:00
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