Party Time for Seabed

Dutch supplier for the hydrographic, dredging and offshore industry, Seabed, celebrated on 1 April their first five years in business. During these five years Seabed has grown from three up to fifteen professionals and from 20 to about 40 different products and solutions. On their stand, they hosted a party that was well attended.   Seabed specialises in technical services aimed at the development and implementation of both hardware and software. Besides a highly qualified staff, the company offers a wide range of high-quality instruments. Seabed offers a large range of GPS equipment and utilities as well as a broad... (read more)
2009-04-02 12:44:55

Seabed Soil Testing System

Schilling Robotics, and Gregg Drilling and Testing have delivered a new Cone Penetration Testing (CPT) system for deep-water seabed soil testing. Gregg is commencing in-water testing of the system today in Long Beach Harbor (CA, USA). Once harbor testing is complete, the system will then be sent to work offshore in June 2009.   Schilling supplied the control system and hydraulics for the Gregg-designed CPT system. The control system consists of electrical and communications components, subsea hydraulics, along with topside hardware, console components, and advanced component monitoring and diagnostic software.   Gregg's CPT is performed using a cylindrical penetrometer with... (read more)
2009-04-21 04:31:50

Mapping Northwest UK Seabed

The Maritime and Coastguard Agency (MCA, UK) and six partner organisations launched the Ireland, Northern Ireland and Scotland Hydrographic Survey (INIS Hydro) project at the Belfast Harbour Commissioners Office on Monday 4th July 2011. INIS Hydro, which receives GBP3.2 million from the European Union's INTERREG IVA Programme, will produce a standardised hydrographic survey specification and accurate high-resolution bathymetric datasets for seven important seabed areas to the east of Ireland/Northern Ireland and off the west coast of Scotland. A total of 1400 km2 will be surveyed by the partner organisation's research vessels fitted with multibeam sonar technology.   High-quality bathymetric information... (read more)
2011-07-04 10:48:21

Acoustic Seabed Classification

Integration into hydrographic survey programmes
Acoustic seabed classification is rapidly gaining acceptance as a useful tool amongst the world's ocean community. Commercial classification products can measure acoustic diversity in the surficial seafloor zone and produce thematic maps of the resulting acoustic classes. Hydrographic services throughout the world routinely conduct bathymetric surveys using single beam sounders and multibeam sonar. These operations are ideal candidates to serve as 'surveys of opportunity' for acquisition of acoustic classification information. The hydrographic office itself gains significantly better seafloor information for charting purposes, with the added benefit that the ocean community outside hydrography gains a new capability to manage the delicate... (read more)
2008-01-01 01:00:00

Klaipeda Harbour Seabed Mapped

The Lithuanian Coastal Research and Planning Institute (CORPI) has recently completed the first ever 100% coverage survey of Klaipeda Harbour, Lithuania, using the Kongsberg GeoAcoustics GeoSwath Plus COMPACT system. This EU-funded project was carried out during the implementation of the Sustainable Management of Contaminated Sediments (SMOCS) project, developed under the framework of the Baltic Sea Region Programme 2007-2013. The work focuses on the mapping of contaminated sediments in the modern port development area. Full-scale, shallow water multibeam, sidescan sea floor imagery and seismic mapping were carried out by CORPI's staff in order to gain a full understanding of the morphology... (read more)
2013-08-19 11:20:47

Solution for Seabed Seismic Acquisition

Five months after CGGVeritas, France, and Saudi Aramco, Saudi Arabia, signed a Memorandum of Understanding (MOU) for collaborative research and the development of geophysical acquisition, processing, analysis and interpretation technologies, the two companies have entered into a collaboration to conduct a major joint R&D project, known as SpiceRack, intended to herald a robotised solution for seabed seismic acquisition. Based on the deployment of self-propelled recording nodes, this solution is expected to lead to a step-change in the efficient delivery of reservoir quality seismic data. Both companies will draw on their seismic acquisition experience and allocate resources to the SpiceRack project.... (read more)
2012-11-06 02:12:36

OSI Completes Seabed Characterization Projects

Ocean Specialists Inc (OSI), has announced the completion of a series of seabed characterization projects that involved geophysical and geotechnical surveys at selected locations in the Gulf of Mexico and Western Atlantic. OSI incorporated the survey resources of its sister company, CSA Ocean Sciences Inc (CSAOS), mobilizing a total of three separate missions under rapid planning and mobilization conditions. The Operations involved a 150ft DP-1 class vessel based in the Gulf of Mexico, as well as electronic seabed classification with the 8.5m purpose-built CSA Surveyor in the Atlantic locations. For more information, visit www.oceanspecialists.com. (read more)
2019-06-17 08:57:29

Integrated Mapping of Seabed Features

Dual use Hydrographic Surveys for Seabed Nature and Morphological Research
The Italian Navy, using survey vessel Ammiraglio Magnaghi and personnel from the “Istituto Idrografico della Marina” (IIM), in cooperation with ENEA Marine Environment Research Centre, surveyed the Levante Canyon system, located in the offshore area of “Cinque Terre”, eastern Ligurian Sea, NW Mediterranean. The purpose of the operation in the area depicted in figure 1 was on the one hand to collect the data necessary for the updating of nautical documentation and on the other hand to carry out scientific research on the seabed nature and specifically on deep coral banks. Italian Navy Ships are equipped with state-of-the-art equipment and... (read more)
2014-10-06 02:21:18

Seabed Characterisation Using Wind Noise

The acoustic reflection coefficient of the seabed can be measured from the wind-generated noise of the ocean using a vertical line array of hydrophones suspended in mid-water. Results of experiments at several sites have previously been published and an example is presented here. The effect of the seabed on acoustic propagation from a source to receptor is illustrated by means of a simple formula.<P> The formula predicts thatfor a highly reflective seabed the received acoustic power at moderate ranges could be at least four times that received from a single direct path, and higher still at long ranges. Such effects... (read more)
2008-03-12 12:00:00
Search Filter