8 May 2017

Bands of extra-tough ice slow down cracks in Antarctica’s Larsen C ice shelf

Bands of extra-tough ice slow down cracks in Antarctica’s Larsen C ice shelf

The stability of the Antarctic Peninsula’s largest ice shelf may depend upon stripes of extremely strong ice running down its spine, a new study finds.

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4 May 2017

Hawaiian mountains could lose snow cover by 2100

Hawaiian mountains could lose snow cover by 2100

A new study, accepted for publication in Earth’s Future, a journal of the American Geophysical Union, indicate that Hawaii’s two volcano summits are typically snow-covered at least 20 days each winter, on average, but that the snow cover will nearly disappear by the end of the century.

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3 May 2017

High-altitude aircraft data may help improve climate models

High-altitude aircraft data may help improve climate models

New research in Geophysical Research Letters provides the first actual measurements of the chemical, SO2, in the tropical upper troposphere/lower stratosphere—and there’s a whole lot less than some scientists estimated.

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2 May 2017

Development degrades Canary Island’s cherished sand dunes (+video)

Development degrades Canary Island’s cherished sand dunes (+video)

A new study published in Earth’s Future, a journal of the American Geophysical Union, explores the impact of development on local wind patterns and dune formation on one of Spain’s Canary Islands. By reviewing aerial photographs and topographical measurements, the study’s authors watched how a city’s expansion altered local wind patterns and ultimately changed the surrounding landscape, jeopardizing the long-term sustainability of a major tourist destination.

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1 May 2017

Study of historic Chilean quake warns of a future tsunami

Study of historic Chilean quake warns of a future tsunami

The most populated central region of Chile could be vulnerable to large tsunamis generated by a deceptively moderate kind of earthquake that might be overdue, say scientists who have sorted out the source of an earthquake and tsunami that struck the area 287 years ago. The region is the same that trembled from a magnitude 6.9 earthquake on April 24.

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27 April 2017

Glass formed by volcanic lightning could be used to study eruptions

Glass formed by volcanic lightning could be used to study eruptions

Researchers have developed a method to measure one of the most striking and difficult to measure volcanic features – volcanic lightning – using the tiny glass spheres formed by hot volcanic ash.

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26 April 2017

New study challenges long-held tsunami formation theory (plus video)

New study challenges long-held tsunami formation theory (plus video)

A new study is challenging a long-held theory that tsunamis form and acquire their energy mostly from vertical movement of the seafloor. The finding validates an approach developed by researchers that uses GPS technology to detect a tsunami’s size and strength for early warnings.

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Sea level rising faster now than during 1990s, new study shows

Sea level rising faster now than during 1990s, new study shows

Global mean sea level is rising 25 percent faster now than it did during the late 20th century largely due to increased melting of the Greenland Ice Sheet, a new study shows. Satellites first started measuring sea level rise in 1993. The new study revisits how well these measurements agree with independently observed changes in the various components contributing to sea level rise.

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24 April 2017

Study finds pond expansion a significant factor in loss of Mississippi delta land

Study finds pond expansion a significant factor in loss of Mississippi delta land

Wind-driven expansion of marsh ponds on the Mississippi River Delta is a significant factor in the loss of crucial land in the Delta region, according to new research. The study found 17 percent of land loss in the area resulted from pond expansion, much of it caused by waves that eroded away the edges of the pond.

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18 April 2017

Mercury’s craters offer clues to planet’s contraction

Mercury’s craters offer clues to planet’s contraction

Craters serve as time-markers for the faults because they can be dated by how degraded they appear. The more degraded looking craters are older. Those that have sharper features are younger, and those with bright rays of debris radiating around them are youngest of all.

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