underwater monitoring Articles

  • Underwater Robots Perfect for Power Production

    Underwater exploration, fish farms, dive jobs, marine research, municipal and commercial water utilities are obvious industries for the utilization of Deep Trekker mini-ROVs and pipe crawlers. However another industry that has seen remarkable success integrating underwater inspection robots is energy production. Diverse methods of creating energy provide a number of applications which benefit ...


    By Deep Trekker Inc.

  • Advancing Autonomous Underwater Vehicle Technology

    Autonomous underwater vehicles (AUVs) are a mainstay of the subsea survey industry. With unparalleled speed and accuracy in deep water, they have long been the obvious choice for surveys in inhospitable, deep environments. In light of the current downturn in the oil and gas market and the increasing visibility of autonomous vehicles, such as self-driving cars, AUV technology is poised to break ...

  • Water Treatment Plant: Benefits of Underwater Cameras

    Before fresh water can be made safe for human consumption it must go through a treatment process eliminating bacteria and any other elements deemed unsafe to drink. How does such a process occur and why is it relevant to us? We’ve written about the use of Deep Trekker remotely operated vehicles and pipe crawler systems in storm water systems, sanitation pipes, and water storage basins. A ...


    By Deep Trekker Inc.

  • Gas monitoring and leak detection in underwater application for the offshore oil and gas case study

    With over 300 sensors and systems sold world-wide and over 35 scientific users publications, Franatech is market leader for underwater methane detection and monitoring. Franatech is a developer and supplier of sensors for detection of gases in water. The company has more than 15 years experience in subsea applications, working with all kinds of sensing technologies. Coming from a scientific ...


    By Franatech GmbH

  • Ocean outfall plume characterization using an autonomous underwater vehicle

    A monitoring mission to map and characterize the Point Loma Ocean Outfall (PLOO) wastewater plume using an Autonomous Underwater Vehicle (AUV) was performed on 3 March 2011. The mobility of an AUV provides a significant advantage in surveying discharge plumes over traditional cast-based methods, and when combined with optical and oceanographic sensors, provides a capability for both detecting ...


    By IWA Publishing

  • Condenser performance monitoring, control and optimization

    Abstract During the past sixteen years, understanding of the condensation process within condensers has been advanced through the introduction of new monitoring and control instrumentation. Data gathered from a variety of condenser types employing these instruments have allowed comprehension of the condensation process to be advanced to the point where underperforming regions of tube ...


    By Intek, Inc.

  • Monitor Hull Corrosion with Thickness Gauge

    After our recent article about inspecting your hull paint to reduce bio-fouling and acting as an anti-corrosion method, we wanted to delve deeper into one of the biggest problems shipowners and operators face: corrosion. ...


    By Deep Trekker Inc.

  • Media expansion monitoring improves filtration

    In municipal surface water treatment plants, optimum filter performance is a crucial component. Filtration is the primary treatment process at water treatment plants, and backwashing is the primary means to keep filters functioning properly to produce safe drinking water for the public. Since 2000, Entech Design, Inc. has used underwater acoustic sensing technology to monitor filter media ...


    By Entech Design, Inc.

  • Mobile UW–ASN framework with RSSI–based protocol for shallow river monitoring

    Approximately three–fourths of our planet's surface is covered by ocean and seas, a continuous body of water that is divided into several oceans and smaller seas. Water conditions determine climate that affects life on Earth. Whereas fresh water in lakes and rivers covers less 1%, its contamination significantly damages ecosystems. Within this research this paper proposes a framework with a ...


    By Inderscience Publishers

  • A Sound Projector for Acoustic Tomography and Global Ocean Monitoring

    Abstract—Long-range underwater acoustic systems, such as those used in ocean acoustic tomography, require low-frequency signals covering a broad frequency band. To meet this requirement, a novel design based on of a tunable narrow-band high-efficiency sound projector has been exploited. The projector transmits a frequency sweep signal by mechanically tuning a resonator tube (or organ pipe) ...

  • Path planning for marine fleet using heuristic approach

    Nowadays, the use of unmanned vehicles for border monitoring is taking over in order to reduce the effort of human operators. This paper addresses the problem of the coastal patrolling by proposing a solution based on unmanned underwater and surface vehicles. The focus of the work is on the design of the routes for the unmanned vehicles so as to optimise the limited mission range of the robotic ...


    By Inderscience Publishers

  • Heroes of the Waters

    A sense of adventure and desire to explore the depths were the inspiring forces behind Deep Trekker. We believe that the more awareness people see underwater the more they care about the oceans and waterways and keeping them clean. Finding that perfect balance between making sure our underwater drones are accessible to everyone but maintaining durable equipment that can withstand serious and ...


    By Deep Trekker Inc.

  • Home range behaviour of the monogamous Australian seahorse, Hippocampus whitei

    We provide a quantitative account of local movements in the monogamous Australian species Hippocampus whitei, as a rare report of home range size in fishes living in seagrass habitats. Our study took place in shallow Posidonia seagrass beds in Port Jackson (Sydney Harbour), principally during January to March. Daily monitoring of individual seahorses during underwater observations revealed that ...


    By Springer

  • Levelogger Edge Data Verified in Harsh Conditions of Antarctic Tidal Study

    From April 2013, through December 2013, a Levelogger Edge was used in an Antarctic Tidal Study to monitor sea level fluctuations in the Davis Sea, Antarctica. A unique monitoring setup was implemented for the successful installation of the Levelogger Edge in these extreme climatic ...


    By Solinst Canada Ltd.

  • Everett, WA - ERH under active storm water retention basin - Case Study

    First below water ERH remediation of TCE in active stormwater retention basin Project Summary TRS Group, Inc. (TRS) worked as a sub contractor to Landau Associates on this unique ERH remediation project. This project represents the first of its kind using ERH for site remediation underneath an industrial storm water retention basin full of water. The ...


    By TRS Group, Inc.

  • Morphological, bathymetric and sedimentological surveys used to assess the coastline defensive measures

    This paper outlines the results of a study recently carried out on the western coast of the Sestri Levante peninsula (Eastern Liguria - Italy), aiming to assess the effects of newly accomplished defensive measures against coastal erosion: the accretion of the beach with natural sand and its protection with artificial structures orthogonal and ...

  • Search and Rescue Demo With Deep Trekker

    Search and Rescue operations are a large part of police divers jobs. While it is never nice to hear about a drown victim, the work that police divers do is extremely important to provide closure to the families involved. Each time a brave diver enters the water there is a number of risks involved, especially when the specific task at hand holds so much weight. One of the most ...


    By Deep Trekker Inc.

  • Equipment and technology review: rocscience tunneling applications

    Allen Gwynnes Pumps– name resurrected With a design and manufacturing history stretching back 150 years, Allen Gwynnes Pumps, a name long associated with the manufacture of large, performance critical pumps, is once again an active force in the market place, operating from its new head office location in Middlesbrough, UK. The company was acquired by NEI during the 1970’s, and then became part ...


    By Rocscience Inc.

  • Ocean science for sustainable development: Facts and figures

    Sarah Grimes explores why we need good ocean monitoring, how to get it, and why it still fails Small Island Developing States. Oceans are a critically important component of the Earth system, supporting ecosystem and human health. They regulate the weather and climate; are essential for producing freshwater; and soak up ...


    By SciDev.Net

  • The Light at the End of the Tunnel - How to Successfully Operate a UV Disinfection System

    ABSTRACTOver the past ten years, ultraviolet (UV) technology has become a commonly applied method of disinfecting of wastewater effluent. UV disinfection involves passing wastewater effluent through a confined chamber with rows of underwater lamps emitting UV energy. Viruses and bacteria become inactivated upon exposure to dosages of UV energy, thereby disinfecting the wastewater. The UV system ...

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