ocean monitoring Articles
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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) ...
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New oil spill response application note from China
The Problem: Oil may spill out in the process of oil exploration & development, refining, storage and transportation and enter into open water environment like oceanic environment due to incident or incorrect operation. Oil spill damages include to human heath, safety, ecological environment, aquaculture. In China, the State Oceanic Administration requires the oil content in the discharge to ...
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Why Pacific islands should take on ocean monitoring
Pacific islands must build capacity for their own environmental monitoring to tackle both local and global problems, says Ben Ponia. Small island developing states are viewed as the early-warning canary for global environmental change. But though they share global problems, many have an eye for economic growth and have become industrialised nations facing their own suite of home-grown problems. ...
By SciDev.Net
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Animals could help humans monitor oceans
Sharks, penguins, turtles and other seagoing species could help humans monitor the oceans by transmitting oceanographic information from electronic tags. Thousands of marine animals are tagged for a variety of research and conservation purposes, but at present the information gathered isn't widely used to track climate change and other shifts in the oceans. Instead, monitoring is mostly ...
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Measuring carbon dioxide (CO2) along ocean surfaces case study
Customer: Confidential Application: A research team needed to study the levels and variations of one of the major greenhouse gases, carbon dioxide (CO2) along the ocean surfaces. The research team required CO2 analysers to be installed in commercial ocean liners to monitor the “dry” level of CO2 on ocean surfaces as well as the ability to calibrate automatically and accurately ...
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Environmental monitoring of two fish waste ocean disposal sites in Newfoundland and Labrador, Canada
Sediment contaminant and benthic community surveys were conducted at two fish waste ocean disposal sites in Newfoundland and Labrador, Canada, to assess the environmental impacts of the disposal activities. Despite a dispersive ocean environment, fish wastes accumulated at both sites, initially disturbing the benthic community through organic enrichment and oxygen depletion, but causing no ...
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El Niño/La Niña Update: Current Situation and outlook
Despite warming of the Tropical Pacific Ocean up until June, the overlaying atmosphere largely failed to respond. As a result, ocean temperature anomalies along the equator have decreased over the past two months. Changes in the wind patterns in early-August brought some weak re-warming, but winds have now returned to near normal in the western Pacific, while the pattern of cloudiness has ...
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A global setting for European environmental monitoring — measuring what we must manage. EEA International conference, 13-15 May 2009. key conclusions
Meeting statement Worldwide observation systems deliver regular products based on comprehensive data sets of high quality. They provide society with indispensable services for the sustainable management of Earth"s resources. There is a clear need to intensify efforts to increase the sustainability, coordination, quality, integration integration, extent and operational capabilities of today"s ...
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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 carbon. They also provide food and other resources, trade and migration ...
By SciDev.Net
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Note: carbon-cycle estimation: a plea for measurement of ocean carbon dioxide concentrations
Unless an effort is made to measure the carbon dioxide content of the oceans, the ability of researchers to distinguish between absorption by oceanic and by biotic sinks related to carbon emissions will remain imperfect. This uncertainty presently limits the ability of policy-makers to set a carbon emissions target fully consistent with that for carbon dioxide concentrations.Keywords: ...
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Managing oceans with sound science
Management of marine resources for sustainable development needs local capacity for science, particularly in the Pacific region. Those who care about environmental damage and its effects on the health and welfare of communities tend to focus on land-based threats. That is where harm can be most easily observed, and where its causes — from agricultural pesticides to industrial air pollution ...
By SciDev.Net
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Meteo Tsunami Measurement by Ocean Radar WERA
On May 29, 2017 a meteorological. 2m high tsunami hit the Dutch. coast. Serious injuries were. Avoided only because of the. timing – the wave hit beaches at about. 5:45am local time. Some 50km southwest of. Zandvoort, where the wave was observed,. there are two WERA (WavE RAdar) ocean. radar systems, at Monster and Ouddorp. (Figure 1). These systems are owned by. Rijkswaterstaat (part of ...
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Is pH a red herring when it comes to ocean acidification?
New research points to saturation state, not pH, as the most pressing metric to track when it comes to shellfish survival. In 2007, the owners of Whiskey Creek oyster hatchery on the Oregon coast lost almost all of their larvae — and had no idea why. The only clue was that the larval die-offs often occurred during intense upwelling events, when deep, acidic waters replace surface waters ...
By Ensia
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LISST Included in Particle Sensor System used by SINTEF Ocean
Thank you to Dr. Emlyn Davies and SINTEF Ocean for sending us thse amazing photographs of a LISST-100 in action in a sensor system used for mapping fish eggs, larvae and zooplankton. Located in Norway, SINTEF Ocean conducts research and innovation related to ocean space for national and international industries. Dr. Emlyn Davies, a senior research scientist at SINTEF Ocean, finds new ways to ...
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Annual Swim – “Newport Sharkfest”
An article popped up on our radar by Newport This Week. It is about Clean Ocean Access‘ upcoming annual swim that has been dubbed” Swim to Skim”, which raises awareness of the Marina Trash Skimmer’srole of improved water quality. We at Marina Accessories are excited to see new ways to bring awareness to marine debris and the Marina Trash Skimmer. Thank you Newport This ...
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How To Be Agile And Maintain A Competitive Edge During Uncertain Times
The pandemic has changed the flow and processing of information, the nature of business and how we work, and has snarled global supply chains. For people, the impact has included working from home as the norm, an absence of physical interaction, varying travel restrictions, and strains on family ties and social mores. Many companies were caught flat-footed to the shutdown having to ...
By CSignum
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NASA Science Zeros in on Ocean Rise: How Much? How Soon?
Seas around the world have risen an average of nearly 3 inches since 1992, with some locations rising more than 9 inches due to natural variation, according to the latest satellite measurements from NASA and its partners. An intensive research effort now underway, aided by NASA observations and analysis, points to an unavoidable rise of several feet in the future. Members of NASA's new ...
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Bringing Spotter Buoys to Indigenous Communities on the Front Lines of Climate Change
Indigenous coastal communities have relied on the ocean for millennia and still do to this day. Climate change, however, is making the ocean unpredictable, and poses a new and urgent challenge. Rising temperatures and sea levels threaten coastal communities and when fishers or whalers ask, “Is today a safe day to take my boat out?”, they simply do not have the wave data necessary to ...
By Sofar Ocean
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Comparison of Directional WaveGuide Radar with Directional WaveRider Buoy
Abstract Down looking FMCW radars for measuring water level, tides and wave height have been in use for 25 years. A combination of three down looking FMCW radars, mounted on an o↵ shore location, can be used to accurately measure ocean wave height and wave direction. At locations where an o↵shore mounting construction is readily available, the major advantage of this relatively new ...
By Radac BV
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The Business Challenges In Subsea Industries And Digital Transformation
Safety – The Driving Factor Today’s leading business issue in subsea industries like oil and gas, offshore wind farms and environmental monitoring is – safety. How do you assess the effects of corrosion on the health of your infrastructure, and evaluate their remaining asset life or get data from submerged sensors and data loggers without the prohibitive costs and ...
By CSignum
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