Research - page 4

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Researchers create largest, longest multiphysics earthquake simulation to date

Researchers at LMU and TUM in Munich are up for best paper at SC17 after simulating one of the largest, most violent earthquakes in history. Just before 8:00 a.m. local time on December 26, 2004, people in southeast Asia were starting their days when the third...

November 13, 2017

antarctic heat map

New Antarctic heat map reveals sub-ice hotspots

An international team of scientists, led by British Antarctic Survey (BAS), has produced a new map showing how much heat from the Earth’s interior is reaching the base of the Antarctic Ice Sheet. The map was published Monday, November 13, 2017, in the journal...

November 13, 2017

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Mantle plume, a geothermal heat source under West Antarctic ice sheet

A new study adds to evidence that a geothermal heat source called a mantle plume lies deep below Antarctica's Marie Byrd Land, explaining some of the melting that forms lakes and rivers under the ice sheet. Although the heat source isn't a new or increasing...

November 12, 2017

India Monsoon

Solving the mystery of rapidly rising Indian Ocean sea level

Sea levels around the world have risen by 1.7 millimeters (0.07 inches) on average each year since 1880, but in recent years, scientists have observed a rapid increase in sea level in the north Indian Ocean. Tide gauge records and other datasets reveal the pace of...

November 12, 2017

land motion map scotland 2017

First ground motion map of Scotland, an important asset for risk assessment and mitigation

Using hundreds of satellite radar images the team, working with Geomatic Ventures Limited (GVL), an innovative University spin-out company, created a complete map of mainland Scotland. The map covers a two-year period from 2015 to 2017 and was created using...

November 12, 2017

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Decadal variation of relationship between East Asian monsoon and El Nino

East Asian summer monsoon (EASM) is one of the most dominant climate systems in East Asia. The anomalous EASM can cause extremely high temperatures, floods or drought. And the El Niño-Southern Oscillation (ENSO), the dominating mode in the tropical Pacific,...

November 11, 2017

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Magma held in 'cold storage' before giant volcano eruption

Long Valley, California, has long defined the "super-eruption." About 765 000 years ago, a pool of molten rock exploded into the sky. Within one nightmarish week, 760 km3 (182 mi3) of lava and ash spewed out in the kind of volcanic cataclysm we hope never...

November 11, 2017

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Cooling in high and mid-latitudes led to aridification in Northern Africa

Researchers from several European institutions found that northern high-latitude cooling played a role in triggering the rapid termination of the African Humid Period 5500 years ago. It is one of the driest regions of the Earth, yet, in a cave in the Egyptian...

November 10, 2017

coastal risk study 2017

Scientists identify hotspots of coastal risks in Latin America and the Caribbean

500 000 people in Latin America and the Caribbean are at high risk from coastal hazards, according to a new study by researchers at UC Santa Cruz and the University of Cantabria, Spain. The catastrophic 2017 hurricane season provided ample demonstrations of the...

November 07, 2017

air pollution

How toxic air clouds mental health

There is little debate over the link between air pollution and the human respiratory system: Research shows that dirty air can impair breathing and aggravate various lung diseases. Other potential effects are being investigated, too, as scientists examine...

November 05, 2017

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ALMA discovers cold dust around nearest star

The ALMA Observatory in Chile has detected dust around the closest star to the Solar System, Proxima Centauri. These new observations reveal the glow coming from cold dust in a region between one to four times as far from Proxima Centauri as the Earth is from the...

November 05, 2017

tsunami reveals magnitude of human noise pollution

Tsunami reveals human noise pollution in Hawaiian waters

A tsunami that struck Hawaii in 2011 and caused a temporary halt to boat traffic has provided scientists a rare glimpse into what the bays might sound like without human activities. The tsunami, triggered by the same earthquake that caused the Fukushima nuclear...

November 04, 2017

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New research looks at how ‘cosmic web’ of filaments alters star formation in galaxies

Astronomer Gregory Rudnick sees the universe crisscrossed by something like an interstellar superhighway system. Filaments — the strands of aggregated matter that stretch millions of light years across the universe to connect galaxy clusters — are the...

November 02, 2017

atmospheric rivers study

Study estimates global reach of atmospheric rivers

A recent study by NASA and several partners has estimated, for the first time, the global impact of atmospheric rivers on floods and droughts, as well as the number of people affected by these atmospheric phenomena. Atmospheric rivers are relatively long, narrow,...

November 02, 2017

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Saturn's radiation belts: A stranger to the solar wind

The high energy proton population in the environment of Saturn develops independently of the solar wind - and thus in a considerably different way from the one on Earth. The radiation belts of Earth and Saturn differ more strongly than previously assumed. In these...

November 01, 2017

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'Monster' planet discovery challenges formation theory

A giant planet - the existence of which was previously thought extremely unlikely - has been discovered by an international collaboration of astronomers, with the University of Warwick taking a leading role. New research, led by Dr. Daniel Bayliss and Professor...

November 01, 2017

amazon rainforest

The Amazon makes its own wet season

Scientists have known for some time that transpiration—the process by which plants and trees release moisture to the atmosphere—contributes much of the water that falls back down on the Amazon rainforest in its "wet season." But that moisture...

November 01, 2017