Articles tagged with Ships
Researchers investigated wind patterns and affecting weather systems around the shipwreck location. The study revealed strong winds of at least 31 m s-1, and a bow echo embedded in a squall line contributed to the disaster.
Researchers deployed a hydrophone to record ambient noise from the ocean floor at 36,000 feet in the Challenger Deep. The recordings revealed a diverse range of natural and human-made sounds, including earthquakes, whale calls, and ship traffic.
A study measuring underwater noise from ships found that low-frequency noise affects killer whales, while medium-high frequencies also interfere with their communication and echolocation. Reducing ship speed can help mitigate this noise pollution.
Researchers at the University of Exeter estimate that bio scientific research generates 1.8% of global plastic production, equivalent to 67 cruise ships a year. They propose funding agencies incentivize greener practices with budget for lab recycling facilities and grant application requirements.
A study by University of Bergen researchers found that cruise tourists spend less during port visits, regardless of shopping opportunities. In contrast, land tourists spend significantly more on Sundays and holydays. The study also revealed that repeat visitors tend to return as either land or cruise tourists, not the other way around.
Researchers from Alfred Wegener Institute discovered plastic litter on the Arctic sea surface, with 31 pieces found in a 5,600km survey. The litter is likely to pose new challenges for Arctic marine life, which has already seen high levels of plastic pollution in its stomachs.
A new study suggests creating quiet marine zones to better understand the impact of human-generated noise on marine animals. The researchers mapped areas of high and low noise pollution in the oceans around Canada and found a correlation between noise levels and animal behavior.
Researchers find that using liquid natural gas (LNG) in marine vessels can reduce local air pollution, but its impact on greenhouse gases depends on the fuel supply infrastructure. The study suggests that LNG may be a viable alternative to traditional fuels for shipping companies looking to comply with new regulations.
New research reveals that the Mary Rose's cod provisions were sourced from distant waters, including the northern North Sea and Icelandic fisheries. The findings suggest a globalized fish trade played a significant role in the growth of the English navy during the Tudor period.
Research suggests that stripes do not provide an advantage for animals living in groups when multiple targets are presented simultaneously. This contradicts the long-held assumption that stripes evolved to make it difficult for predators to capture animals moving in a group.
Researchers found that electrochemical disinfection creates numerous 'disinfection by-products', which can have unknown environmental impacts. Alternative methods like filtration or adsorption are recommended to prevent the transfer of harmful organisms.
A previously unknown shipwreck was discovered more than a mile deep off the North Carolina coast using scientific sonar. The wreck is believed to date back to the late 18th or early 19th century and contains artifacts such as an iron chain, wooden timbers, and navigational instruments.
Researchers have discovered a way to expand metal matrix syntactic foams applications to autos, trains, ships and others requiring lightweight structural components that retain strength when bent or compressed. The new sandwich composite increased stiffness and offered high energy absorption.
A new study provides the first detailed view of calling blue and fin whale distribution in Southern California, revealing a steady population trend for blue whales and an upward trend for fin whales. The research uses acoustic data collected from 2006-2012, indicating that fin whales are more likely to be detected further offshore.
Research by Lasse Laustsen and Michael Bang Petersen suggests that competent leaders are often preferred for leadership roles but not necessarily as friends. In contrast, non-dominant individuals with cooperative traits are often chosen as friends regardless of political ideology or social conflict context.
A new satellite imaging concept could significantly reduce search areas for missing boats and planes, potentially reducing search and rescue time. The system uses existing satellites to take images of the seas, enabling more accurate tracking of vessel movements.
Researchers used ROC curves and the Pythagoras theorem to identify the point at which a patient's health begins to improve. The study found that using Pythagoras' theorem makes a material difference in identifying improvement with more consistency and accuracy.
A study led by the University of Barcelona found that tourism, fishing, and sea transport are compromising the wellbeing of common bottlenose dolphins in the Pityusic Islands. The researchers estimate there are only a few hundred dolphins in the area, and conservation measures are needed to protect them.
NOAA and partners have released detailed sonar maps and images of the historic SS City of Rio de Janeiro, a San Francisco shipwreck that sank in 1901, killing 128 people. The wreck was located using cutting-edge technology in the Gulf of the Farallones National Marine Sanctuary.
Researchers from HURL and NOAA team discover the USS Kailua, a historic cable ship that served in World War II, sitting upright in 2,000 feet of water nearly 20 miles off Oahu's coast. The ship was surprisingly intact for its age, with well-preserved upper deck structures and no signs of torpedo damage.
A new study using satellite data estimated global ship traffic from 1992 to 2012, finding a four-fold increase over the past 20 years. Shipping traffic grew faster in the Indian Ocean, peaking at a rate of 10% per year in 2011.
Researchers used robotic ocean gliders to study the transport of warm water near the Antarctic coast, discovering that swirling ocean eddies play a key role in this process. The findings will aid in determining how rapidly ice is melting and contributing to rising ocean levels.
Research finds over half of ships in largest oil spills registered in non-compliant flag states, with one-third of global tanker fleet flying such flags. The study calls for pressure on flag states to ensure compliance with regulations.
A team of researchers led by NOAA's Office of National Marine Sanctuaries discovered two significant vessels from World War II's Battle of the Atlantic, the German U-boat 576 and the freighter Bluefields, approximately 30 miles off the coast of North Carolina. The discovery provides a rare window into a historic military battle and the...
The new underwater robot is designed to inspect ships for false hulls and propeller shafts that smugglers use to hide contraband. With its unique propulsion mechanism and ability to perform ultrasound scans without surface contact, the robot could revolutionize port security.
A recent study published in Applied Geography highlights the significant impact of oil discharges from human maritime activity on the Canadian coast. The research, led by University of Calgary geographer Stefania Bertazzon, shows that recreational activities such as boating and fishing are major contributors to ocean pollution.
A NOAA research team has located the 1910 shipwreck SS Selja and an unidentified steam tugboat wreck near San Francisco's Golden Gate strait. The team also discovered the 1863 clipper ship Noonday, which was previously obscured by mud and silt.
The California blue whale population has rebounded to near historical levels, according to new research. The recovery is attributed to careful management and conservation measures, rather than ship strikes or other human-caused factors.
The Fraunhofer Institute is showcasing its Virtual Maritime Interior Configurator, a tool that enables realistic planning of ship interiors without physical mock-ups. The company is also introducing the Crew Compliance Organizer software to simplify crew management and reduce regulatory violations. Additionally, Fraunhofer will display...
A new study found that marine noise pollution, such as ship noise, compromises the anti-predator behaviour of European eels. The research, published in Global Change Biology, showed that exposed eels are 50% less likely to respond to predator threats and have slower reaction times.
A 15-year analysis of blue whale movements off the West Coast found that their feeding areas are bisected by shipping lanes, increasing the risk of injury and mortality. Researchers suggest moving shipping lanes to reduce collisions, similar to a previous study that reduced right whale strikes in the Bay of Fundy.
Researchers analyzed NBA coaching decisions over two decades, finding that hasty adjustments following close losses backfire, resulting in extra losses per season. Coaches also underreact to close wins, particularly those with large margins, making it essential to consider all information when evaluating performance.
A NOAA regulation has been effective in lowering ship speeds in areas with North Atlantic right whales, helping protect these critically endangered animals from collisions. The policy of notifying speeding vessels resulted in improved compliance rates, especially among cargo vessels.
The Panama government has implemented new traffic separation schemes to minimize overlap between commercial vessels and humpback whale migration routes. The changes are expected to reduce vessel speed four months a year and minimize vessel-whale collisions by up to 95%.
Scientists develop sustainable paint ingredient from plants that repel barnacles without killing them, set to reduce fuel use by 40% and minimize environmental impact
Researchers from the University of Sheffield have challenged long-held assumptions about the Titanic's fate, revealing that the risk of icebergs is actually higher now. The study used data on iceberg locations dating back to 1913 and found that while 1912 was a significant ice year, it was not extreme in the long term.
The KAIST team created a box-type pressure vessel with a lattice structure, which can efficiently store liquefied natural gas (LNG) without the need for multiple cylindrical tanks. This design reduces space utilization issues and lowers manufacturing costs by using special steel alloys.
Researchers found relatively low iron amounts and minimal sulphur compounds in the Ghost wreck, suggesting it might not face the same preservation issues as the Vasa. Three studied ships, including the Crown, display more aggressive sulphur compounds and higher iron concentrations.
A study by the University of Washington's Applied Physics Laboratory reveals more detections of whales traveling through the Bering Strait. The research tracks Arctic beluga and bowhead whales as well as sub-Arctic humpback, fin, and killer whales using underwater microphones.
Researchers investigate the impact of Saharan dust on ground-level pollution in Houston, with a focus on regulatory limits and measurable air quality. They plan to use samples collected in Barbados and Houston to confirm previous findings.
NASA's Aqua satellite captured a final image of Tropical Storm Kajiki on January 31 as it made landfall in the Philippines. The storm weakened to a depression with maximum sustained winds near 30 knots/34.5 mph, displacing over 18,000 people.
The Fleet Integrated Synthetic Training/Testing Facility (FIST2FAC) enables affordable, adaptive training for naval forces. Sailors can interact with artificially intelligent forces in various settings, developing strategies for complex missions and operations.
A Syracuse University biologist has developed a system to track ships and monitor underwater noise levels in a protected marine mammal habitat. The techniques focus on the bottlenose dolphin population in Scotland's Moray Firth, where increasing shipping activity may negatively impact resident marine mammals.
A new study predicts a sixfold increase in the number of potential invaders in Arctic waters by 2100 due to warmer climate and increased shipping. The researchers expect an increasing pressure on marine ecosystems, threatening traditional fisheries in Norway and Greenland.
Researchers at UT Arlington are working on a $152,077 Office of Naval Research grant to improve the thermal properties of lithium-ion batteries. They aim to devise better designs for cooling and operating these batteries safely in high-power applications, reducing the risk of fires and battery degradation.
Researchers from UT Austin successfully spoofed an $80 million yacht at sea using a custom-made GPS device. The team demonstrated that spoofing attacks can be carried out covertly and with significant difficulty in detecting, posing a serious threat to marine vessels and other forms of transportation.
Researchers at Caltech have developed a new way to analyze turbulent flow near walls, which can help reduce drag and fuel consumption in aircraft and ships. By breaking down complex equations into smaller blocks, they found that commonly observed features of wall turbulence can be explained by superposing just three response modes.
A study published in Animal Behaviour found that ship noise disrupts feeding for common shore crabs, while also heightening their predation risk. The research suggests that the combination of reduced foraging time and increased vulnerability to predators may negatively impact crab growth, fitness, survival, and harvested populations.
Researchers found that hydrogen fuel cells are technically feasible and commercially attractive as a clean power source for ships. The study suggests that using hydrogen fuel cells to power container ships could reduce greenhouse gas emissions and air pollution, with potential economic benefits.
A recent study by Arizona State University researchers found that reforestation efforts in the Panama Canal watershed may not always increase water supply, but can enhance carbon sequestration and timber production. The research highlights the importance of understanding the spatial distribution of ecosystem services and their trade-offs.
A new study maps the most detailed forecast to date for importing potentially harmful invasive species with cargo ships' ballast water. The research reveals hotspots of bioinvasion, including large Asian ports and US ports like New York and Long Beach.
Researchers found that cruise tourists spend an average of NOK 300 per day onshore, compared to NOK 600 for camping and hotel tourists. This is due to the all-inclusive nature of cruises and low budget options.
The need for reliable, high-voltage shipboard power has become a matter of national security following the announcement of laser weapons on U.S. Navy ships. Researchers are developing cutting-edge technologies like silicon carbide-based transistors and transformers to improve power quality and reduce size and weight.
Researchers at Aalto University have developed a new fatigue model that enables the creation of lighter structures, leading to more energy-efficient ships. The study's findings can be used to improve the design of various welded steel structures, predicting fatigue endurance more accurately and utilizing materials more efficiently.
Research reveals many marine mammal populations are increasing, with some recovering to near carrying capacity. The MMPA's strong protections against commercial and accidental killing have contributed to these recoveries.
A team of scientists and technicians led by Rice University is conducting a 45-day expedition in the North Atlantic to gather detailed information about the geology of the ocean basin. The $6 million project aims to study the Galicia rift, where sediment has not deeply buried formations that have existed at the bottom of the ocean for ...
A team of specialists analyzed a 2,000-year-old bronze battering ram to shed light on how such an object was made in ancient times. The study found that the bronze alloy was composed of 87% copper, 6% tin, and 7% lead, with varying concentrations throughout the casting.
Volunteers are transcribing decades-old pen strokes from historic log entries to add to the climate record, revealing past weather and climate patterns. The project aims to provide valuable data for scientists studying the Arctic's dramatic melt back.
Developed for DTRA, EMAPS creates annotated physical maps of areas without GPS coverage, capturing 360-degree photos and sensor readings using lasers and sensors. The system improves upon algorithms for robots and includes human movement allowance, detecting environmental threats and associating critical data with map locations.
A new study published in Conservation Biology analyzed data on marine mammal and ecosystem research surveys in the Southern California Bight to identify areas with high whale densities. The researchers found that certain shipping routes pose a higher risk to fin whales, while others may be safer for humpback whales.