Articles tagged with Ships
Researchers find most plastic particles in water samples come from marine paints, with PVC and acrylates dominating the composition. The team's findings suggest thousands of tonnes of paint end up in the marine environment every year, posing potential environmental risks.
New research suggests that aerosol particles may not have as cooling effect on the climate as previously thought. Cloud researcher Franziska Glassmeier and her team created an extensive data set of cloud simulations to better understand this effect, which they found to be overestimated by traditional ship-track data.
A new study published in Science reveals that ship-track data cannot be used to estimate the cooling effect of anthropogenic aerosols on climate change. The research highlights a significant bias in current aerosol-cloud forcing estimations and suggests alternatives for direct observation of aerosol effects.
Researchers use DNA analysis to determine that all 44 tusks came from forest elephants residing in West Africa, revealing the geographic origins and habitats of these endangered species. The study provides a framework for examining vast collections of historic ivory, offering insights into modern wildlife conservation.
A recent CMCC study analyzed 2018's Ro-Pax CO2 data from EU-MRV, revealing clustering in vessel populations and key factors contributing to high emissions. The study found variability spanning five orders of magnitude due to ferry size, propulsion features, age, and other characteristics.
A team of scientists proposes using fleets of commercial shipping vessels to detect and forecast tsunami waves. The network of ships would utilize GPS sensors to monitor the shoreline for potential surges in less than 10 minutes, providing a significant advance warning to people on shore.
Hady Salloum and his team at Stevens Institute of Technology will commercialize an underwater security system to protect ports, ships, and supply chains from surface and underwater intruders. The system uses patented technology to detect human divers and small boats, ensuring safer travel, shipping, and logistics.
Researchers developed tools to estimate if wave-energy devices will turn over in changing ocean environments. The mathematical approach considers device geometry, mooring systems, and tidal wave properties, yielding accurate predictions.
Researchers found vessel traffic and whale vocalizations contribute to ambient sound, with fluctuations by month and seasonal peaks. The study establishes a baseline for understanding the impact of human-made noise on the sanctuary's ecosystem.
A team of researchers from Korea Advanced Institute of Science and Technology and Pohang University of Science and Technology developed a lubricant-infused slip surface to reduce friction in ships. They found that larger open areas lead to a more slippery surface, while lid thickness has little effect on slip.
Researchers at NYU Abu Dhabi have identified 61 genetic targets that can manipulate the biofouling activities of phytoplankton, paving the way for new eco-friendly antifouling methods. The study presents key insight into molecular signaling pathways and protein receptors involved in biofouling.
A two-metre-long Atlantic sturgeon discovered in a 1495 shipwreck off Sweden's coast reveals insights into the Baltic Sea's ecosystem during the Middle Ages. The well-preserved fish remains were identified through DNA analysis, providing a unique link between the sturgeon and royal politics.
Research by Flinders University PhD candidate Matt Firth challenges long-held assumptions about the Royal Navy's origins, finding evidence that a tradition of defensive naval action existed before Alfred the Great's reign. The study also sheds light on medieval burial ships and cultural contact between England and Scandinavia.
A German-French research team is developing a new sensor network to monitor ship emissions and improve the monitoring of pollutants in the marine environment. The project aims to provide a tool for observing the extent of pollution arising from ship collisions, affecting coastal populations' health.
A recent study found that noisy boats and ships can affect the prey response of young fishes, leading to decreased activity and reduced swimming distance. This can result in slower escape responses and increased mortality rates among juvenile reef fish.
Researchers from CNRS and University of Poitiers have explained the 'dead water' phenomenon in ships, where waves create drag, slowing down or stopping vessels. The study reveals waves act like an undulating conveyor belt, causing speed oscillations in trapped boats.
Dr. Ying-Tsong Lin, the 12th person in history to visit Challenger Deep, is an acoustic scientist studying sound propagation in the ocean. His research aims to improve acoustic communication and geo-location at extreme depths.
A University of Manchester study reveals that existing ships will dominate the sector's impact on climate change, and could even swallow up shipping's entire safe carbon budget. Retrofitting existing ships and implementing emission-reducing measures such as slower speeds and renewable technologies are key to reducing committed emissions.
A recent study on cruise ship passengers reveals that more than half tested positive for COVID-19, with only 19% displaying symptoms. This finding emphasizes the need for accurate global data on the prevalence of asymptomatic infections.
Researchers analyzed global shipping fleet movements between 1977 and 2008 to understand how routes evolve. A model based on common neighbor ports and sea distance predicts the likelihood of forming direct links between unlinked ports.
Researchers at MIT and WHOI have developed a lightweight instrument that can measure both physical and biological features of the ocean's vertical layers. The EcoCTD uses a combination of sensors to capture data on temperature, salinity, and chlorophyll content, providing insights into nutrient cycles and carbon sequestration.
A new study found that humpback whales are at risk of collision with vessels in the Magellan Strait, with some individuals encountering ships up to 18 times per season. The researchers propose speed limits and mandatory observers on commercial vessels to reduce the risk of injury or death.
A group of scientists recommend integrating terrestrial and ocean approaches to create a robust portfolio of climate adaptation and mitigation measures. They propose policies on renewable energy, sustainable transportation, food security, and habitat restoration to promote economic development and address climate change.
A new study suggests the MOSAiC research team's ship may melt out months before its year-end goal due to rapid changes in Arctic sea ice. The team used climate models to simulate conditions along potential routes, finding that thinner sea ice and increased variability could lead to early melt-out.
New research measures cloud changes caused by ship pollution, revealing a measurable regional impact on global temperatures. The study found that globally, cloud changes due to industrial pollution block 1 Watt of solar energy per square meter.
Researchers have found that Madagascar's forest cats are domestic cats from the Arabian Sea region, potentially introduced hundreds of years ago via trade ships. This discovery raises concerns about the impact on native species and ecosystems, particularly the fossa, a forest predator facing extinction.
Researchers found that ship noise weakens shore crabs' ability to change shell color and respond to danger. The study shows that even for animals not primarily using sound, noise pollution can impact survival behaviors.
Research shows that ship noise affects shore crabs' ability to change color and behave normally, reducing their camouflage effectiveness. The study found that juvenile crabs exposed to ship noise changed color half as quickly, making them less camouflaged.
A quarantine on the Diamond Princess cruise ship resulted in a much higher number of coronavirus infections than initially expected. The study found that passengers were exposed to each other for an extended period due to strict social distancing measures, leading to increased transmission.
The AutoNaut is a specially-adapted sea-going robot that can deploy an underwater Seaglider, carrying sensors for climate research. The vessel has been tested off the coast of Barbados and will be used to track cloud formation and its role in the climate system.
A new study published in Frontiers in Marine Science found that eDNA (environmental DNA) can identify more species of marine vertebrates than traditional trawl nets. The research team collected water samples and analyzed the DNA to detect the presence of important species such as great white sharks and salmon.
Researchers used satellite tracking to show how strongly ships affect clouds, which can influence climate. The study found that restricting sulphur in fuels led to a significant decrease in ship tracks and their impact on clouds.
The Antarctic Broadcasts: Broader Impacts Through Telepresence project invites the public and classrooms to interact with polar scientists conducting critical research in Western Antarctica. The Inner Space Center will broadcast live 'Polar Stories' sessions, providing real-time feeds from ships and remote stations.
The Flinders University team created a highly realistic virtual experience of the wreck, including a digital reconstruction of how it sank. The three-minute dive is available on YouTube and offers insights into Iceland's forgotten history during the 17th century.
Researchers found polyethylene terephthalate (PET) drinking bottles are the most abundant type of debris, increasing at 14.7% annually since the 1980s. The majority of recent bottles were manufactured in Asia, with China being a primary source.
Francesca Verones aims to create a comprehensive life-cycle assessment tool to evaluate the environmental impacts of ocean-related activities. Her research will consider everything from shipping routes and pollutants to tourism and trash management.
Researchers have discovered that particles and even time itself can exist in a state of superposition, blurring the lines between cause and effect. This phenomenon has significant implications for quantum computing, potentially leading to breakthroughs in operations performance.
Researchers have solved a 127-year-old physics problem regarding the Kelvin angle in boat wakes, finding that the traditional assumption is not always true. The study reveals that boat wakes can have a different angle and even be off-center when affected by shear flow or other environmental factors.
Scientists have extended the record of Arctic sea ice thickness variability from 40 years to 110 years by using historic observations from ships' logs. This provides more context for understanding rapid changes in the Arctic Ocean and helps predict its future.
Researchers at the University of Edinburgh used supercomputer calculations to study the growth and collapse of tiny bubbles, known as nanobubbles. The findings suggest that these bubbles can burst to release powerful jets of liquid, causing damage to industrial structures.
Researchers from Harvard University and the UK's National Oceanography Centre corrected historic sea surface temperature measurements, identifying two new key causes of warming discrepancies in the North Pacific and North Atlantic. The study suggests that changes in Japanese records, particularly truncation of data, contributed to the ...
A new model predicts blue whale locations based on daily oceanographic data and tagged whale movements. The app will help ship crews and managers avoid collisions with the endangered species along the US West Coast.
A new study analyzes 10 years of data on manatee movement patterns, revealing that they use nearshore channels more frequently and travel faster in all channel types. This research sheds light on the risks associated with vessel collisions and informs suggestions for optimal channel maintenance.
Researchers have discovered that Arctic micromolluscs can exhibit pseudohermaphroditism due to pollution, providing a new method for environmental monitoring. The study found a correlation between the presence of organic tin compounds and the incidence of this anomaly in snails.
Recent hybridization of Gulf killifish has enabled them to adapt quickly to extreme pollution in the heavily polluted Houston Ship Channel. The study found that fish from more polluted sites were most resistant to pollution and that resistance was inherited through multiple generations.
Research published in Deviant Behavior found that the dark web is a hub for anonymous handgun sales, with 64% of products advertised being handguns. The study sheds light on a niche market where buyers can circumvent stricter gun laws, highlighting the need for further investigations and potential regulation.
A new sensor system can monitor wiring in buildings or ships to detect impending electrical failures, allowing for timely repairs. The system was tested on a Coast Guard cutter, pinpointing a motor with burnt-out wiring that could have led to a serious fire.
The Sodré astrolabe is the oldest known mariner's astrolabe, dating back to 1496-1501. It has been certified as the earliest verifiable example of a transitional instrument between classic planispheric and open-wheel astrolabes.
Archaeologists used a portable X-ray fluorescence detector to analyze ceramic pieces from the Java Sea Shipwreck, pinning their origins to specific kiln sites in southeastern China. The findings reveal complex trade networks between Asia and Africa in the 12th and 13th centuries, challenging traditional Eurocentric views of globalization.
Scientists propose using high-tech coatings that can retain air for weeks to reduce drag and fuel consumption of ships. This technology has the potential to save up to 20% of fuel and reduce global CO2 emissions by almost one percent.
Reducing shipping vessel speed by 10 knots may help alleviate the negative impact of noise pollution on Arctic cod, according to a study. The study found that slowing down cruise ships resulted in more substantial reductions in acoustic masking effects compared to container vessels.
A study found that male humpback whales reduce or cease singing in areas with high human shipping noise. The authors suggest that ceasing vocalization and moving away may be cost-effective adaptations to avoid the noise.
Researchers found that increased ship noise results in high dolphin whistle frequencies and a reduction in whistle complexity, making it harder for dolphins to communicate. The simplification of these whistles could have significant effects on dolphin populations.
A team of researchers analyzed seismic and acoustic data from US Navy explosions off the Florida coast to better understand the relationship between local magnitude and charge weight. They found that both types of data can be used to identify underwater explosions, with seismic signals providing clearer evidence.
A study by University of Connecticut researchers found that increased trans-Arctic shipping could lead to a minor cooling effect in the Arctic, potentially offsetting some of the overall warming trend. However, this effect is relatively minor and may be offset by international regulation and trade agreements.
Researchers have developed a new method to conserve salvaged wooden ships and artifacts using 'smart' nanocomposites, eliminating harmful acids without damaging the structures. This technology could help preserve other shipwrecks like the 16th-century British warship Mary Rose and its artifacts.
The FRASCAL research training group at FAU is investigating fracture processes in materials across all scales, from nanometers to visible cracks. This interdisciplinary study aims to develop computer-aided simulation methods to predict and prevent undesired fractures.
A NOAA-funded team of scientists from Scripps Institution of Oceanography and the University of Delaware discovered the missing 75-foot stern section of the USS Abner Read in 290 feet of water off Kiska Island. The finding sheds light on the little-known episode in WWII history where 71 US Navy sailors lost their lives.
The East Coast Oceanographic Consortium will operate a new oceanographic research ship with improved science labs and state-of-the-art technologies. The vessel will support scientific studies, educational opportunities, and outreach to the public, enhancing the nation's Academic Research Fleet.
A recent study published in the Proceedings of the National Academy of Sciences found that narwhals, beluga, and bowhead whales are most vulnerable to vessel traffic in the Arctic. The researchers identified two 'pinch points' where ships and animals are most likely to intersect, including the Bering Strait and Lancaster Sound.