Water Quality Data Buoy Order

AXYS wil supply of two WatchMate data collection buoys to the University of Southern California. The solar and battery powered WatchMate's are each configured with two WETLabs Water Quality Monitors, all-in-one instruments that measure salinity, temperature, dissolved oxygen, chlorophyll and turbidity. The buoys will provide USC's public health and water quality officials in Southern California with a better picture of water quality along the Pacific Coast. The project is led by Burt Jones, a research associate professor in the USC Marine Environmental Biology program, and it covers much of the shoreline of Los Angeles and Orange counties. Jones' team... (read more)

2008-10-29 01:28:18

New ‘FerryBox’ Water Quality Monitor

Xylem Analytics UK and Aanderaa Data Instruments have launched a new marine water quality monitor designed to enable wider deployment of water quality sensors on ferries and other marine vessels. The ‘SOOGuard’ will be launched at Ocean Business in April 2013. The system’s four sensors (conductivity, temperature, optical dissolved oxygen and chlorophyll A) are fitted onto the door of a flow-through cell - a design that allows simple and rapid cleaning. The sensors are very stable and require calibration checks less than once a year in most environments. Further flow-though cells can be fitted to allow for the measurement of... (read more)

2013-03-05 04:21:46

New Oil-in-Water Sensor

Applied Microsystems announces the availability of Leak-Sentry, our new oil-in-water sensor. Leak-Sentry is deployed underwater and uses fluorometry to detect emulsified or dissolved hydrocarbons. Unlike other fluorometers, Leak-Sentry is equipped with the necessary intelligence to rapidly characterise background hydrocarbon levels and alarm upon detection of incremental leaks or spills. Detection signals are communicated to a process control system, to a data-logger, or to any PC running Applied Microsystems' Spill-View software. Leak-Sentry is ideal for integration onto oceanographic buoys for long-term environmental monitoring. Similarly, the instrument can be deployed at critical points on submerged pipelines for early-warning of possible leaks. In... (read more)

2004-07-02 12:00:00

ROV-triggered Water Sampling System

OSIL have supplied a water sampling system of for use in the offshore oil industry. Iindustry-standard Niskin bottles are included due to their robustness. OSIL designed a sampling system to secure 6 primed 5L Niskin bottles, with space for an AML Oceanographic CTD Plus V2 in the centre of a stainless steel frame, which could then be mounted to the ROV. The system was required to retrieve multiple samples, with space for a CTD probe (or similar instrument to collect background data), and had to be fitted to and operated by ROV under difficult conditions. The samples were to... (read more)

2011-10-28 12:00:00

Mapping Cold Water Coral Reef

In recent trials off Trondheim, Norway, the GeoSwath Plus swath bathymetry and side scan system was used for the first time on a remotely operated vehicle (ROV) to map cold water coral reefs. The objective of the survey was to test how effective the GeoSwath was as a ROV mounted sonar for identifying cold-water coral colonies. At 60m deep the Tautra ridge in Trondheim Fjord is home to world’s shallowest known cold-water coral reef, and was an ideal site for initial system trials. The corals seen there usually thrive in much deeper waters. The GeoSwath was deployed on a Minerva... (read more)

2007-02-12 09:24:28

Navigating Through Land and Water

This year the Geodetic Institute of Slovenia is celebrating its 55th anniversary. As a public institution, the work of the Institute was and remains dedicated to geodesy, photogrammetry, cartography, geomatics and property. Its experts in different fields of the profession are also the lecturers at the University of Ljubljana and, in this way, they transfer their knowledge to younger generations. About 10 years ago, the Institute started hydrographic activities as official support to the Slovenian Hydrographic Office.<P> The Institute for Geodesy and Photogrammetry (IGF) was established on 14 December 1953 as a research institute at the University of Ljubljana. The... (read more)

2009-01-05 12:00:00

Cable Tracking in Shallow Water

Tailoring Systems for Inshore Operations

Whilst there has been an increased effort to resolve the issues of supporting deepwater construction operations, issues specific to shallow-water operations seem to have been largely overlooked, the attitude being that standard equipment packages would be perfectly adequate. What makes this all the more surprising is that the majority of offshore developments have some sort of shallow-water requirement associated with beach landing points. As always, the other factor driving all developments is cost. Whilst the high price of oil has produced a boom in oil-construction support, the laws of supply and demand have increased vessel and service provision rates to... (read more)

2007-05-31 12:00:00

Object Identification in Turbid Water

Near video-quality Images from Acoustic Systems

Working underwater requires visual feedback to prevent work slowing or even coming to a halt. Acoustic systems make images in turbid water, but not always with the required detail provided by optical systems. This article reviews technology that provides near-optical-quality acoustic images, allowing work to continue in zero-visibility water. Problem Overview A significant amount of underwater work takes place in seas, rivers and coastal areas where visibility is minimal and optical systems generate blank screens. Conventional sonar provides images under these conditions, but the detail generally does not come close to the optical detail needed for identification, inspection and manipulation... (read more)

2008-01-01 01:00:00

ROV Mid-water Station Keeping

An affordable and functional solution for Mid-water Station Keeping (MWSK) has been on the wish list of most ROV operators and manufacturers for some time now; the huge benefits in terms of operational efficiency and the future potential for pre-planned automated missions has made it a case of when, not if. Against this backdrop and at the request of C-Innovation,CDL and Schilling Robotics engineers started work on a collaborative solutionover twelve months ago, the results of that effort were demonstrated in Marchin the Gulf of Mexico following an extensive period of Factory Acceptance Tests. Traditional ROV station... (read more)

2011-04-05 02:41:22

Helping Make Blue Water Green

From December 2008 through October 2010, Arjen van Eijk and Florian Dirkse of the Netherlands will set sail on an adventure and produce a documentary targeted at raising awareness about the critical role oceans play in our world's climate. To ensure these two sailors will safely complete their "Care for the Ocean" mission, Hemisphere GPS and its partners Saderet and Nautikaris have donated navigation equipment. With Hemisphere GPS' VS100 Compass aboard, Florian and Arjen will be able to precisely guide their 10m sailboat from the Galapagos Islands to the Suez Canal, while covering more than 47,000 kilometres of... (read more)

2009-02-26 10:47:14