GEBCO and Deep Water

Data Assembler, Converter, Interpreter and Disseminator
GEBCO uses deepwater survey data to produce bathymetry maps and grids. Published maps appear complete but are in fact based on very little data. Only a portion of the deep data that could potentially be put to use is contributed to the public domain. All would benefit were more data submitted to data centres. BackgroundWhile the general public thinks that all the seafloor has been mapped and many hydrographers and ocean scientists accept published maps and datasets as faithful representations of the deep-sea floor, in reality only a small percentage of the seafloor has ever been directly measured; estimates range... (read more)
2007-03-02 12:00:00

Deep-water Industry Event

The "mce Deepwater Development" 2009 technical conference is, for the first time, to be held in Copenhagen (Denmark). It features a packed technical programme and is supported by an exhibition showcasing the world's major companies operating within the deepwater sector.     Hosted by Maersk Oil and organised by Quest Offshore, this year's conference will see Maersk Oil's CEO, Thomas Thune Anderson, welcoming the international delegates and presenting the conference's keynote speech.   According to Quest Offshore, the current estimate of 2009 Global Deepwater Spend is USD164 billion, the oil price is hovering around USD40/bbl and major discoveries for example,... (read more)
2009-02-26 11:01:50

Very Shallow-water Bathymetry

The River Murray Operations Unit (RMOU) of the South Australian Water Corporation surveys very shallow waters, a type of surveying that has its own specific problems overcome by non-conventional solutions. This article was submitted by a surveyor from the above survey unit. I attended the Shallow Water Survey conference in Sydney in 2003 because that is what I was doing: shallow-water bathymetry - in fact, I was even doing it out of the water. To my surprise, shallow water seemed to be considered as something at about the 10 metre mark or a bit less; 10 metres, to me, was... (read more)
2008-01-01 01:00:00

Seizing Energy from Water

Best-kept Dutch Secret
At least 10% of the Dutch electricity demand can be met from water, according to the Inspiration Atlas ‘Water as a source of renewable energy’. This is not widely known. In fact, this form of energy generation is one of the best-kept secrets in The Netherlands. The Directorate-General for Public Works and Water Management (Rijkswaterstaat) and Deltares are trying within the Rijkswaterstaat Water Innovation programme to show both government and industry the different options and offer them the opportunities to put their innovative solutions into practice. View Larger Map The Dutch Directorate-General for Public Works and Water Management (Rijkswaterstaat; acronym RWS)... (read more)
2009-09-02 12:00:00

CodaOctopus On the Water

During Ocean Business 2009, CodaOctopus Products will be present on the water, in the exhibition hall and in the classroom at this month's Ocean Business event at the National Oceanography Centre, Southampton (UK). The Coda Echoscope will be demonstrated every day in its role as the primary element of the Echoscope-UIS (Underwater Inspection System).   An extensive daily programme will run on board RV Wessex Explorer on the water adjacent to the NOC and advance bookings are now being taken. The schedule of free demonstrations and informative sessions in the classroom is detailed  below, along with information about how to... (read more)
2009-03-04 02:06:07

Innovation in Coastal Water Monitoring

HCTECH
HCTECH is a technology-based company that started as a spin-off of CIS (Centro de Investigaciones Submarinas SL) in Santiago de Compostela (NW Spain). It was founded to improve the management and to further develop the technical know-how gathered during 10 years of R & D in CIS. The company is dedicated to the designing and manufacturing of water quality monitoring systems and other marine technologies. CIS (Centre for Submarine Investigations), founded in 1987, is an environmental consulting company, specialised in the marine environment. For over a decade, CIS maintained a research, development and innovation department that ­generated techniques to prospect... (read more)
2013-03-26 01:07:53

Coastal Monitoring of Water Quality

Autonomous Surveying of Shallow Coastal Waters for Clean Seas and Shorelines
The wave-propelled AutoNaut unmanned surface vessel (USV) completed a short trial off the south-west coast of England to monitor the water quality by a sewage outfall. AutoNaut demonstrated its ability to reliably operate in shallow waters whilst also recording and transmitting data. A suite of sensors aboard the USV worked in conjunction with satellite data from synthetic aperture radar (SAR). Analysis indicated that the seawater close to the outflow was not negatively affected. The combination of technologies is pioneering for the application and the trial highlights the potential of this innovative approach to conduct long-term marine monitoring – including the... (read more)
2017-08-02 11:23:28

Safe Electricity Use Under Water

Preventing the dangerous hazards which may arise from the use of electricity under water are dealt with in ‘Code of Practice for the Safe Use of Electricity Under Water', a seminal publication from the International Marine Contractors Association (IMCA, UK). The Code covers all types of electrical equipment used by a diver - employed for his benefit, either under his control, or under the control of the diving support team. "The Code deals with vital issues such as the prevention of electric shock, and other concerns, including the degradation of electrical insulating material by heat, which can result in the... (read more)
2010-12-03 12:02:50

Satellite-based Water Quality Monitoring

EOMAP, Germany, has launched a high-resolution monitoring service for inland and coastal waters, with water quality information directly accessible online through the eoApp web application. Monitoring water quality for inland and coastal waters is a requirement for many government and private sector entities, which includes identifying long-term trends and understanding emerging problems over large areas that contain numerous water bodies – all to be done in near real time. The service is supported by data from a fleet of satellite sensors and uses proprietary physics-based processing technologies. The base product suite includes water quality parameters such as turbidity, chlorophyll concentrations... (read more)
2015-06-04 09:30:00

Mapping Liquid Water on Mars

To tie in with NASA’s recent announcement about the discovery of liquid water on Mars, Esri has put together an interactive story map showing the craters and canyons on Mars that reveal evidence of water. Watch animations of the recurring slope lineae (water stains) across four different craters and explore satellite imagery and elevation data for the 'Red Planet'. Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time. They darken and appear to flow down steep slopes during... (read more)
2015-09-30 11:55:57
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