Ocean Monitoring Articles

  • At what Speed is Greenland’s Ice Sheet Melting?

    Greenland – Overview Greenland is an island and autonomous Danish territory located between the North Atlantic and Arctic Ocean. Most of the land is covered by a massive ice sheet. In fact, this ice sheet is one of the only two existing on this Earth. The other ice sheet covers Antarctica. The Greenland Ice Sheet (GrIS) covers approximately 81 percent of Greenland. This ice sheet is ...


    By Climate Institute

  • Ship-mounted Direct and Diffuse Hyperspectral Radiometers successfully measure Solar Irradiances and Aerosol Optical Depth

    Marine AOD measurements matter because aerosols can affect respiratory health, climate change, and the safety of aircraft during volcanic events. However, routine marine Aerosol Optical Depth (AOD) surface-based observations are in short supply because it is both difficult and expensive to operate conventional automatic sun photometers at sea. Two prototype hyperspectral radiometers have shown ...


    By Delta-T Devices Ltd.

  • Case study - Oil analysis - House Calls - Help reduce offshore equipment failures

    A new approach It is hard to think of another environment where an equipment failure could have a greater negative impact on employee safety and lost production than an offshore oil and gas production platform. Yet offshore platforms are among the world’s most difficult locations to operate and maintain equipment. In most cases, skilled people and supplies can only reach the ...


    By Spectro Scientific

  • How listening to the ocean can help reveal environmental damage

    In 2013, Katherine Indeck listened to recordings of sounds made in a channel between the Gulf of Mexico and Tampa Bay, Florida. Some of the audio files had been collected in 2005 during an unusually severe red tide, a bloom of toxic algae that killed fish, dolphins and sea turtles. Other recordings were made after the ecosystem began to recover. During the recovery years, Indeck could hear sounds ...


    By Ensia

  • How to investigate mercury in the oceans?

    Mercury is a highly toxic metal that affects the environment and can endanger people's health, as a powerful neurotoxin. The combustion of coal, waste and fuel are releasing hundreds of tons of heavy metal into the atmosphere annually, and its sediment enters to soil and water. Mercury measurements are part of the EU project "Global Mercury Observation System". The long-term goal of this ...


    By Lumex Instruments Group

  • Top 5 ways marine researchers are currently using Underwater Drones

    Marine researchers around the world are utilizing Deep Trekker Underwater Drones (or ROVs) in their marine projects; here are the top 5 applications being used today. In a few weeks, the world will gather in San Diego, California for the Oceanology International North America exhibition. It will bring together ...


    By Deep Trekker Inc.

  • Acoustic camera and beampattern

    Abstract—The wavenumber-frequency response of an array describes the response to an arbitrary plane wave both in time and space. When the input consists of a single monochromatic plane wave, the response of the array is referred to as the array pattern or beampattern. Through the design of the array our goal is to have a directivity of the array as high as possible in a given direction, ...


    By Norsonic AS

  • Offshore wind costs and development risk

    How procurement strategies, manufacturing costs and new technology stack up against development risk in Offshore Wind Projects. Offshore wind is changing, and it is changing for the better. In 2006, offshore wind deployment costs started rising significantly, from £1.5m/ MW, in 2016 prices, to over £4m/MW in 2012, without a clear indication as to what the price ceiling would ...


    By SgurrEnergy Ltd.

  • WorldWaves wave energy resource assessments from the deep ocean to the coast

    Abstract WorldWaves is a global wave and wind climate package developed through EU and industry sponsorship over many years. The offshore data incorporates global hindcast and operational wave and wind data from ECMWF, validated and calibrated with independent satellite and buoy data worldwide. These data, which may comprise full directional wave spectra time series, are used as ...


    By Fugro OCEANOR AS

  • Case study - SEAWATCH Vietnam

    After a series of marine disasters in Vietnam a project was initiated on the initiative of the United Nations (UN) to improve the typhoon forecasting and warning system, described and defined in the UN report "Strategy and Action Plan for Mitigation Water Disasters in Viet Nam". The United Nations (UN) initiated a plan to mitigate the effects of natural disasters occurring in Vietnam. The UN ...


    By Fugro OCEANOR AS

  • Case study - SEAWATCH Greece - POSEIDON

    Fugro was selected in 1995 by the Puertos del Estado (Coast and Harbour Authorities) in Spain to execute the contract for the project: "Warning and Observation Network for the Marine Environment in Spanish Coastal Waters (instrumentation and control)". Fugro OCEANOR started implementation of the first generation operational oceanographic forecasting system for Greece in 1998. The system named ...


    By Fugro OCEANOR AS

  • Scientists, a new quota species?

    Globally, marine conservation is high on the agenda. The need to protect and conserve species and habitats from deleterious anthropogenic impacts has never been of more concern than it is currently. However, that is not to say we, as a society, are achieving effective marine conservation, in fact we are far from it. Global summits have come and gone, as have the targets they set for marine ...

  • Views from Inside Pearl Harbor’s USS Arizona

    Deep Trekker ROVs Provide Survivor First Live View Inside USS Arizona This year marks the seventy-fifth anniversary of Pearl Harbor and the sinking of the USS Arizona. Unlike most other ships that were bombed on that fateful day, the steel battleship suffered so much damage that it was never salvaged. The final resting place of over 900 souls, the ship has remained submerged in a shallow ...


    By Deep Trekker Inc.

  • Arctic Polar Research - A Global Responsibility

    Due to climate change and geopolitical trends, the Polar Regions (particularly the Arctic) are increasingly becoming the focus of scientific, political, and economic interests. Much of the global climate is driven by forces that originate in the Arctic. The Arctic sea ice is receding faster than climate models have predicted, and the movement of freshwater into and around the Arctic plays an ...

  • Tech Tip: Deploying Sea-Bird CTD in Ice

    Large numbers of Sea-Bird conductivity instruments have been used in Arctic and Antarctic programs. Special accommodation to keep temperature, conductivity, oxygen, and optical sensors at or above 0° C is advised. Often, the CTD is brought inside protective doors between casts to achieve this. Conductivity Cell When freezing is possible, we ...

  • Sea Level Rise: Risk and Resilience in Coastal Cities

    Introduction One of the most dire impacts of anthropogenic climate change is a rise in the global sea level caused by the melting of glaciers and land-based ice caps, as well as a smaller increase from expansion due to the higher temperature of the water itself.  Unlike some other predicted effects of climate change, this impact has already been observed for some time.  Indeed, ...


    By Climate Institute

  • Widespread Plastic Pollution Found in Great Lakes Tributaries

    Tiny pieces of harmful plastic, called microplastics, are prevalent in many rivers that flow into the Great Lakes, according to a study published today in the journal Environmental Science & Technology. Results are also illustrated on a new USGS microplastics website. Microplastics ...

  • E-guide for Measuring TAN and TBN in Oil

    Monitoring TAN and TBN is an important test for measuring lubricant condition. There are several methods available ranging from expensive laboratory methods to quick field tests. In a laboratory setting, methods are chosen based on the highest accuracy and repeatability that can be achieved with a decent throughput. Out in the field, it is most important to get a trustworthy result quickly enough ...


    By Spectro Scientific

  • Four Methods to Measure TAN/TBN in Lubrication Oil

    TOTAL ACID NUMBER A high concentration of acidic compounds in a lubricant can lead to corrosion of machine parts and clogged oil filters due to the formation ...


    By Spectro Scientific

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