Shallow Water Current Measurements

Application of a towed ADP system

Since the management of coastal areas came to the attention of marine science, much effort has been expended in applying originally ‘blue water’ measurement technologies to typical scientific problems in a shallow water environment. For hydrographic investigations in a large but shallow area of the Baltic Sea, a towed current meter system was designed and tested which minimises the limitations of standard vessel mounted ADP application in shallow water conditions. The new system was successfully operated during several cruises in the Baltic Sea. It provides accurate current data in the near surface layer, normally disturbed by the ship induced wave... (read more)

2008-01-01 01:00:00

h inland water mapping

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2017-08-31 02:09:42

Water Information Concept Study

The Open Geospatial Consortium (OGC, USA) has completed a Water Information Concept Development Study of the application of OGC Web Services standards in the domain of water information, specifically to investigate architectures and practices for cataloguing, discovering, and accessing selected water resources data from very large numbers of distributed datasets. David Maidment, director, Center for Research in Water Resources, University of Texas at Austin and leader of the Consortium of Universities for the Advancement of Hydrologic Science (CUAHSI) project on Hydrologic Information Systems said, "The Concept Development Study was very useful to the CUAHSI team to set our work... (read more)

2011-08-02 10:59:05

On-water MCS Demonstrations

EdgeTech is to conduct on-water demonstrations of the new Littoral Mine Countermeasure Sonar (LMCS) in Boca Raton, Florida from 18th to 22nd July. This event is focused on the military community and will highlight the latest EdgeTech LMCS solution. The system includes a unique suite of integrated vehicle, sonar and software technology which provides high speed, high resolution and long range underwater imaging. For more information please contact Rick Babicz at babicz@edgetech.com or +1 5083569741. Confirming reservations are required. (read more)

2011-05-11 11:20:12

Water-Tight Cases

B&D have unveiled their latest range of water-tight cases. The Zarges K470 aluminium container has been re-developed to Ingress Protection (IP) 65 protecting its contents against the penetration of liquids and dust. Zarges' engineers developed the cases with TÜV formally certifying the range. The new models include additionally applied internal sealing, an automatic membrane relief valve, improved lid and location stability. Aluminium cases combine light-weight ease of manoeuvre with unrivalled strength and impact resistance. Effectiveness in protecting against water penetration joins the containers' robust protection against extreme fluctuations in temperature from -150 to +150°C. (read more)

2010-08-27 10:48:19

Deep-water Research Centre

Schlumberger has signed a joint cooperation agreement with the Universidade Federal do Rio de Janeiro (UFRJ) to build an international research centre on the university's campus. The agreement marks the first research and geosciences center to be located at UFRJ Technology Park. The partners will focus on research and development activities in the deep-water pre-salt environment. The emphasis will be placed on the development of geosciences software for the exploration and production sector; new technologies to meet reservoir challenges in pre-salt environments; and the creation of a geophysical processing and interpretation Center of Excellence covering time-lapse seismic and... (read more)

2009-09-21 12:59:25

Geovation Water Challenge Launches

Ordnance Survey’s ninth Geovation® Challenge launched on 1 December 2015, and sees Britain’s mapping agency offering development funding and places on its Geovation programme for ideas that can improve the relationship with water. Individuals, start-ups and existing businesses and organisations are invited to submit their innovative ideas on how to improve the way we use and manage water by 27 January 2016. Ideas identified as possibly having the highest impact will be invited to a Geovation Weekend Camp from 4-6 March 2016, where the innovators will be asked to work on transforming their idea into a prototype venture. Those selected... (read more)

2015-12-03 11:14:25

Water Framework Directive

OSIL is offering equipment packages especially for the purpose of coastal survey and monitoring work associated with the Water Framework Directive. Each package includes a Guildline MiniBAT sensor platform and a selection of key sensors for coastal sampling. The MiniBAT forms the core of the package and is perfectly designed for coastal sampling work, allowing undulating, constant, or fixed depth off-the-bottom profiles to be collected in depths of up to 60 metres and at speeds of 2-10 knots. In addition, the MiniBAT is lightweight and compact, enabling deployment from small survey vessels. The OSIL coastal monitoring package includes a choice... (read more)

2004-02-02 12:00:00

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

Deep-water Coral Reefs

Acoustic recognition and geological setting

Cold water coral reefs, notably the stone coral Lophelia pertusa, have been found extensively in deep Arctic waters such as the Norwegian Sea. The use of multibeam echosounding, together with advanced visualisation and analysis tools, has been a key to many spectacular discoveries. The world's largest cold water coral reef - the Røst Reef - was mapped in detail in October 2002. Located in the dramatic setting of a large submarine slide, this provides an excellent example of how catastrophic geological processes can create special marine habitats. Another major reef complex - the Sula Reef - demonstrates how mounds select... (read more)

2008-01-01 01:00:00