Articles tagged with Sea Level
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Dr. Johannes Fürst's new map provides a reliable estimate of the total ice volume in Svalbard, which is approximately one-third smaller than previously thought. The map also offers an associated error estimate, allowing researchers to calculate the uncertainty of glacier thickness measurements.
Researchers discovered Sherpa muscles can resist fatigue up to twice as much as lowlanders' in a low-oxygen environment. The study found that Sherpa fatigued 33% less and recovered nearly twice as fast compared to lowlanders.
A new study reveals that even deep coral reefs in Palau are exposed to thermal stress at intervals different than those near the surface. By combining sea level and temperature data sets, researchers developed a forecast tool for predicting temperature stress on corals up to 150 meters below the surface.
Researchers found that prolonged exposure to high altitude and underfeeding leads to an inability to build muscle mass, a phenomenon mainly observed in older adults. The study highlights the importance of maintaining caloric balance at high altitudes, particularly among unaccustomed lowlanders.
The remnant low-pressure area of Tropical Cyclone Iris continues to linger in the South Pacific, approximately 285 nautical miles north-northeast of Willis Island, Australia. Global computer forecast models predict the system will remain weak, but there is a possibility it could develop into a weak tropical cyclone after 84 hours.
A study suggests that massive boulders in the Bahamas were transported by hurricanes during the Last Interglacial period, increasing risk of erosion with rising sea levels. The research highlights the potential impact of climate change on coastal environments.
Scientists tracked ruddy shelducks crossing the Himalayas using satellite data, finding they fly above 5,000 metres and reach 6,800 metres altitude. This challenge likely requires adaptations to cope with lower oxygen levels, surpassing even bar-headed geese' records.
Researchers have discovered that geostrophic balance becomes invalid at smaller scales, making sea level data unreliable for calculating ocean circulation. At high resolution, sea level can accurately calculate circulation in areas with persistent eddies, but not in areas dominated by internal waves.
A new study reveals that sea-surface temperatures during the last interglaciation period were comparable to those of today. The analysis of 104 marine sediment core sites suggests that global ocean SSTs simulated by most climate models are too low, and that oceans may respond differently to modern warming.
The Eurasian ice sheet grew from small ice caps to a massive ice mass, nearly three times the size of modern-day Greenland, through a process driven by climate cycles and snowfall. The sheet's growth had a profound impact on regional climates, creating rain-shadow effects and desert conditions in western Russia and Siberia.
A new analysis of an archaeological site in Tibet suggests that permanent residents may have set up camp thousands of years earlier than previously thought. The study's findings support previous genetic research and propose that the region's wet climate may have enabled permanent pre-agricultural peopling.
Researchers redate human settlement in Tibet, pushing back timeline by thousands of years; new findings suggest permanent residence may have been established due to wetter climate, enabling pre-agricultural peopling of the plateau.
Army ants create underground bivouacs that maintain a consistent temperature 13 degrees F warmer than surface temperatures. This allows the colony to stay mobile and raise their young offspring, which is critical for their survival at high elevations.
The five species of snub-nosed monkeys face extinction due to ecosystem fragmentation and deforestation, with governments working to protect them. Improving local living standards and public awareness on sustainable resource use are crucial for their long-term survival.
A study suggests that changes in deep-water ocean circulation, rather than CO2 levels, drove the Great Ordovician Biodiversification Event. This finding supports the idea that icehouse conditions, not super-greenhouse periods, are associated with the greatest increase in marine biodiversity in Earth's history.
A new study suggests that geophysical elements, such as the West Antarctic Ice Sheet's gravitational pull and the mantle's fluid nature, can slow its retreat. This could lead to a less drastic rise in global sea levels than previously predicted.
Researchers found that mice with lower levels of EDNRB protein are more tolerant to hypoxia and better able to maintain cardiac function and oxygen delivery. This study suggests that EDNRB could be targeted to treat sea level diseases related to low oxygen, such as heart attack and stroke.
Researchers found that ADHD prevalence decreases substantially at higher elevations, correlating with increased dopamine levels. The study suggests that hypobaric hypoxia, a condition caused by lower oxygen levels at high altitudes, may serve as an environmental stressor and potentially protect against the disorder.
A new study found that Asian citrus psyllid populations decrease with higher elevations, dropping to zero above 600 meters. This trend may provide insights into the insects' vulnerabilities and potentially lead to strategies to control their spread.
A research group studied the Alpine long-eared bat's geographical distribution and found five vertebrates with similar distributions, including birds and rodents. These species share similar ecological features, such as using rocks for hiding and open spaces for foraging, and are restricted to mountainous areas due to topography.
Researchers from the University of Manchester believe rising sea levels, not direct competition with jaws, led to the extinction of jawless fish. The study found that these ancient fish were reliant on shallow water environments and ecosystems, which declined as sea levels rose.
Extensive world deltas will be lost due to rising sea levels, with major cities like Shanghai, Dhaka, and Bangkok facing inundation. The retention of sand, mud, and vegetation is not fully understood, hindering development of maintenance strategies.
A new high-resolution bedrock map for the Antarctic Peninsula provides detailed insights into the region's geology and ice thickness. The study reveals that 34% of the ice volume is grounded below sea level, with a potential to raise global sea levels by 69mm.
System 91B, a tropical low pressure area, has been lingering over southwestern India since May 8. The storm's eastern quadrant remains over the region, while its western quadrant extends into the Northern Indian Ocean. Maximum sustained winds are estimated at 10-15 knots.
A researcher from the University of Cádiz has discovered 18 new species of molluscs, including the newly identified Spurilla onubensis and Anteaeolidiella indica. The study used molecular analysis to determine the degree of relatedness between species and genera.
Researchers discovered a narrow window of 2,000 to 2,500 meters above sea level offers the best performance enhancement compared to higher or lower elevations. This finding could help competitive endurance athletes develop effective altitude training regimens.
Researchers from Garching and Braunschweig transport frequencies with high precision over almost 2000 km to accurately determine the geoid of the Earth. The new technology allows for a height difference of 4 mm between clocks to be resolved within 100 seconds.
Researchers found ancient shorelines can be pushed up by Earth's hot mantle, making them appear higher now than they originally were millions of years ago. This challenges the previous assumption that high shoreline heights reflect ice sheet collapse and suggests the ice sheets may have been more stable in the past.
Fossil finds in Africa have shed light on the evolutionary past of penguins, revealing that four species coexisted on the continent five million years ago. Rising and falling sea levels are believed to be responsible for the decline of African penguin diversity.
A new study using a 2,540-metre long Greenland ice core has reconstructed the island's temperature and ice sheet extent during the last interglacial period, known as the Eemian period. The research found that the warmest temperatures were about 8°C degrees warmer than average over the past 1,000 years.
Researchers studied the effects of wind speed, altitude, and other environmental factors on athletic performance. They found that a tailwind of 2 meters per second and racing at an altitude of 999 meters could improve Usain Bolt's record time to 9.48 seconds.
A new study published in Nature Geoscience reveals that Arctic methane seepage is linked to melting ice caps, causing climate warming and sea level rise. This phenomenon could lead to significant shoreline retreat and erosion along the Florida coastline, posing a serious threat to coastal residents and infrastructure.
Researchers in The Journal of Geology found that plain ocean waves, aided by strong storms, can move giant boulders inland. By comparing old maps to modern photos, the team showed that sections of the ridges have moved significantly since 1839.
Scientists have discovered two new, closely related bee species on Coiba Island in Panama, which originated from a group of stingless bees that moved into Central America. The presence of one of these new species on the island raises questions about Panama's geological history and biodiversity.
A new study by NOAA finds that strong El Niño years can lead to nearly three times the average number of storm surge events along the East Coast, with a third-of-a-foot elevation in mean sea level. Coastal communities may need to prepare for higher sea levels and more destructive storm surges.
A study using local newspapers helps identify coastal flood events in the Solent region of southern England. The research found a strong relationship between high sea levels and floods, highlighting vulnerable areas such as Portsmouth and Southampton.
A Spanish research team used 3D reflection seismology to create detailed images of the Ebro river basin six million years ago. The study reveals that the sea level dropped dramatically during this period, exposing continental margins to atmospheric agents.
Researchers developed a mathematical model that identifies the top 10 locations for tsunami detection buoys and sea-level monitors in the Indian Ocean. This could save time and money, as well as provide warning to more people in the event of a devastating tsunami.
Researchers have analyzed ice cores from Greenland and small ice caps to show the evolution of the ice sheet over 11,700 years. The findings reveal that changes in elevation cause different temperatures, allowing scientists to use small ice caps as a standard reference for climate history.
Studies found that dialysis patients living at higher altitudes had a lower rate of death, with increased hemoglobin concentrations and lower doses of erythropoietin. Increased iron availability caused by hypoxia-induced factors may explain this finding.
The Dead Sea's subsidence is attributed to a tectonic concurrence between the African and Arabian plates, resulting in a pull-apart basin. The basin's evolution is controlled by four parameters: brittle layer thickness, basin width, strike-slip displacement length, and upper mantle viscosity.
Researchers from the Woods Hole Oceanographic Institution found that the Black Sea level was approximately 30 meters below present levels at the time of the alleged flood, contradicting previous estimates. This suggests a smaller flood event than previously thought, with implications for the settlement and cultural history of the region.
Climbers on an expedition led by UCL doctors reached record-low oxygen levels in their blood, averaging 3.28 kPa, which is significantly lower than the normal human range of 12-14 kPA. The study aims to inform critical care treatment strategies for patients with low oxygen levels.
A new sediment curve derived from Paleozoic Era sediments provides a predictive model for tracking sediment migration. The tool covers the entire Paleozoic Era, spanning 542 to 251 million years ago, and can help the oil industry with discoveries in previously unexplored areas.
A new 300km diameter giant ocean eddy has emerged off the NSW coast, with scientists tracing its birth to last August. The cold water at the new eddy's centre has welled up about 500m from the ocean depths, providing valuable insights into ocean forecasting systems.
Ancient plant and insect life found in Greenland ice cores, suggesting a more stable southern Greenland ice sheet. The discovery sheds new light on the region's climate history and challenges previous views of sea level rise.
New research reveals that every US Gulf Coast bay in Texas and Louisiana is at risk of significant flooding and expansion within the coming century. The bays' delicate balance between river-borne sediments and rising sea levels will be disrupted by the construction of dams, leading to rapid flooding events with devastating consequences.
Researchers suggest low atmospheric oxygen levels led to population fragmentation, increasing extinction rates and slowing recovery. Oxygen levels dropped by 20 million years, making breathing at sea level equivalent to summiting a high mountain.
A CWRU anthropologist has discovered a distinct pattern of human adaptation to high-altitude hypoxia among the Ambaras people in Ethiopia, who have normal sea-level hemoglobin and oxygen saturations. This finding suggests that there are three patterns of adaptation to high-altitude living among indigenous populations.
A new method developed at U of T directly dates individual grains of glaucony minerals, yielding ages scattered over millions of years. The study reveals variable sea levels and provides a way to follow their fluctuations, with applications in oil exploration industry.