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UrduScientists show that an ocean-bottom seismometer deployed close to the calving front of a glacier in Greenland can detect continuous seismic radiation from a glacier sliding, reminiscent of a slow earthquake.
Tag: OCEANOGRAPHY
Underwater seismometer can hear how fast a glacier moves
Scientists show that an ocean-bottom seismometer deployed close to the calving front of a glacier in Greenland can detect continuous seismic radiation from a glacier sliding, reminiscent of a slow earthquake. Basal slip of marine-terminating glaciers controls how fast they…
Earth’s cryosphere shrinking by 87,000 square kilometers per year
First global assessment of the extent of snow and ice cover on Earth’s surface–a critical factor cooling the planet through reflected sunlight–and its response to warming temperatures
Last ice-covered parts of summertime Arctic Ocean vulnerable to climate change
In a rapidly changing Arctic, one area might serve as a refuge – a place that could continue to harbor ice-dependent species when conditions in nearby areas become inhospitable. This region north of Greenland and the islands of the Canadian…
Antarctic Circumpolar Current flows more rapidly in warm phases
In future the intensity of the Antarctic Circumpolar Current could increase, accelerating climate change
Coral offspring physiology impacted by parental exposure to intense environmental stresses
Environmental disturbances, such as bleaching events, can have lasting consequences across generations of corals
Numerical Study First to Reveal Origin of ‘Motion of the Ocean’ in the Straits of Florida
Scientists Identify Mechanisms of Instability Responsible for the Formation of Sub-mesoscale Eddies
Ocean circulation is key to understanding uncertainties in climate change predictions
The accuracy of climate predictions depends crucially on how the ocean circulation of the North Atlantic is incorporated into climate models, study shows
EU provides 15 million euros of funding for Arctic project
The European Union will provide 15 million euros from the Horizon 2020 Programme to fund the Arctic PASSION project for the period 2021 to 2025. Under the leadership of the Alfred Wegener Institute, a consortium of 35 partners will promote…
Underwater robot offers new insight into mid-ocean “twilight zone”
An innovative underwater robot known as Mesobot is providing researchers with deeper insight into the vast mid-ocean region known as the “twilight zone.” Capable of tracking and recording high-resolution images of slow-moving and fragile zooplankton, gelatinous animals, and particles, Mesobot…
Heat from below: How the ocean is wearing down the Arctic sea ice
The influx of warmer water masses from the North Atlantic into the European marginal seas plays a significant role in the marked decrease in sea-ice growth, especially in winter. Sea-ice physicists from the Alfred Wegener Institute, Helmholtz Centre for Polar…
Human-driven climate change only half the picture for krill
In the heart of their Antarctic habitat, krill populations are projected to decline about 30% this century due to widespread negative effects from human-driven climate change. However, these effects on this small but significant species will be largely indistinguishable from…
Microbes in ocean play important role in moderating Earth’s temperature
Methane-eating microbes help regulate Earth’s temperatures with remarkably high metabolic rates within seafloor carbonate rocks
A frozen leap forward
Novel cryopreservation methods enable long-term storage and worldwide distribution of a cellular therapy for age-related macular degeneration
Pine Island Glacier’s ice shelf is ripping apart, speeding up key Antarctic glacier
For decades, the ice shelf helping to hold back one of the fastest-moving glaciers in Antarctica has gradually thinned. Analysis of satellite images reveals a more dramatic process in recent years: From 2017 to 2020, large icebergs at the ice…
IPBES/IPCC: Tackling the biodiversity and climate crises together, and their combined social impacts
Global experts identify key options for solutions; First-ever collaboration between IPBES- and IPCC-selected scientists
Combating maritime litter
Helmholtz-Zentrum Hereon categorizes innovative solutions for fighting pollution in the oceans
The rocky road to accurate sea-level predictions
Dirt and water under Greenland control future sea
Ocean microplastics: First global view shows seasonal changes and sources
Satellites reveal fluctuation in the Great Pacific Garbage Patch and releases from the Yangtze River
UNESCO report calls for increases in investment in science in the face of growing crises
Paris, June 11 – Spending on science worldwide increased (+19%) between 2014 and 2018, as did the number of scientists (+13.7%). This trend has been further boosted by the COVID crisis, according to UNESCO’s new Science Report, The Race against…
Artificial light harming clownfish
Long-term exposure to artificial light decreasing survival of a coral reef fish
Corals’ natural ‘sunscreen’ may help them weather climate change
Smithsonian Conservation Biology Institute scientists are one step closer to understanding why some corals can weather climate change better than others, and the secret could be in a specific protein that produces a natural sunscreen. As their name implies, Hawaiian…
Panama expands the limits of the Coiba protected area
With this science-based initiative, 30% of the Panamanian marine surface will be under some degree of protection
Endangered blue whales recorded off southwest coast of India
Research from the University of Washington shows that endangered blue whales are present and singing off the southwest coast of India. The results suggest that conservation measures should include this region, which is considering expanding tourism. Analysis of recordings from…
UN: More harmful algal bloom impacts emerge amid rising seafood demand, coastal development
UNESCO IOC delivers 1st global assessment report after 7 years’ work by 109 experts in 35 countries, creating a baseline to detect and gauge the changing distribution, frequency, and intensity of harmful — often poisonous — algal blooms
New population of blue whales discovered with help of bomb detectors
It was the whales’ singing that gave them away
Deforestation darkening the seas above world’s second biggest reef
Converting Central American tropical forests into agricultural land is changing the colour and composition of natural material washing into nearby rivers, making it less likely to decompose before it reaches the ocean, a new Southampton-led study has shown. The flow…
Projected acidification of the Great Barrier Reef could be offset by ten years
New research has shown that by injecting an alkalinizing agent into the ocean along the length of the Great Barrier Reef, it would be possible, at the present rate of anthropogenic carbon emissions, to offset ten years’ worth of ocean…
Global youth draft ‘Blue New Deal’ to protect oceans: ‘Time to end generational injustice’
Seek public comment on global youth crowd-sourced ocean policy framework to balance ocean, human, climate, and economic health
Conserving coastal seaweed: a must have for migrating sea birds
As Australia officially enters winter, UniSA ecologists are urging coastal communities to embrace all that the season brings, including the sometimes-unwelcome deposits of brown seaweed that can accumulate on the southern shores. While tidal seaweed (or sea wrack) may seem…
Puerto Rico is prone to more flooding than the island is prepared to handle
AUSTIN, Texas — Puerto Rico is not ready for another hurricane season, let alone the effects of climate change, according to a new study that shows the island’s outstanding capacity to produce record-breaking floods and trigger a large number of…
NTU scientists establish new records of Singapore’s sea-level history
Nation’s ability to predict sea-level rise boosted with record going back to 10,000 years ago
Study of past South Asian monsoons suggests stronger monsoon rainfall in the future
PROVIDENCE, R.I. [Brown University] — A new study of monsoon rainfall on the Indian subcontinent over the past million years provides vital clues about how the monsoons will respond to future climate change. The study, published in Science Advances ,…
Predicting the ocean: Improved forecast and insights for the Mediterranean and Black Seas
Marine forecasters face the challenge of predicting a very complex and constantly changing marine environment by applying ocean science, knowledge and technological skills to produce predictions of the state of the ocean . Operational forecasts are delivered daily in near…
Fungus creates a fast track for carbon
Stanford scientists find epidemics of fungal infections in algae alter carbon cycling
Scholarship and Practice of Undergraduate Research Issue Features Undergraduate Research in Community Colleges
The spring 2021 issue of Scholarship and Practice of Undergraduate Research (SPUR), the academic journal of the Council on Undergraduate Research, focuses on dynamic programs and initiatives advancing undergraduate research in community colleges.
UN urges intense restoration of nature to address climate and biodiversity crises
Launching the UN Decade on Ecosystem Restoration, UN calls on countries to meet commitments to restore 1 billion hectares of land
Evidence for a previously unknown extinction event that decimated ocean shark species
Nineteen million years ago, sharks nearly disappeared from Earth’s oceans, according to a new study, which provides evidence for a previously unknown mass ocean extinction event. Sharks as a species never recovered from this, the study’s authors say; their diversity…
Underwater ancient cypress forest offers clues to the past
When saber-toothed tigers, woolly mammoths and giant sloths roamed North America during the last Ice Age about 18,000 to 80,000 years ago, the Gulf Coast’s climate was only slightly cooler, more similar to regions to the north like Missouri and…
Antarctica wasn’t quite as cold during the last ice age as previously thought
CORVALLIS, Ore. – A study of two methods for reconstructing ancient temperatures has given climate researchers a better understanding of just how cold it was in Antarctica during the last ice age around 20,000 years ago. Antarctica, the coldest place…
Tipping elements can destabilize each other, leading to climate domino effects
Interaction between the Greenland and West Antarctic ice sheets, the Atlantic overturning circulation, and the Amazon forest
New technology ‘listens’ for endangered right whales
One of the world’s most endangered whale species could have added protection from threats posed by human marine activity, through technology developed by the University of East Anglia (UEA). In partnership with the Scottish Association for Marine Science (SAMS) and…
Dead zones formed repeatedly in North Pacific during warm climates, study finds
Over the past 1.2 million years, marine life was repeatedly extinguished in low-oxygen ‘dead zones’ in the North Pacific Ocean during warm interglacial climates
Turning the tables — how table corals are regenerating reefs
Table corals are regenerating reefs
Precise data for improved coastline protection
First comprehensive measurements of sea level changes in the Baltic Sea and the North Sea
Study pinpoints key causes of ocean circulation change
Researchers have identified the key factors that influence a vital pattern of ocean currents. The Atlantic meridional overturning circulation (AMOC) carries warm water from the tropics northward. Many scientists think that this heat transport makes areas including north-west Europe and…
Using fossil plant molecules to track down the Green Sahara
New publication: Researchers explain how vegetation was possible in the desert
Extreme CO2 greenhouse effect heated up the young Earth
Very high atmospheric CO2 levels can explain the high temperatures on the still young Earth three to four billion years ago. At the time, our Sun shone with only 70 to 80 per cent of its present intensity. Nevertheless, the…
Plastic in Galapagos seawater, beaches and animals
Plastic pollution has been found in seawater, on beaches and inside marine animals at the Galapagos Islands. A new study – by the University of Exeter, Galapagos Conservation Trust (GCT) and the Galapagos Science Center – found plastic in all…
Antarctic hotspot: Fin whales favour the waters around Elephant Island
Sound recordings show: the baleen whales use the island’s krill-rich waters virtually year-round, which is why it needs to be protected