Sentences with phrase «volcanic eruption at»

Last June 4th there was a huge volcanic eruption at Puyehue - Caulle, southern Chile.

And one less dust as compared to volcanic eruption at Earth / Sun L - 1 to get more cooling on Earth in comparison.

For instance, when there was «no summer» after a volcanic eruption at about the 4th century CE.

Based on these data, we found evidence of deposition from the 2011 Puyehue Cordon - Caulle (Chile) volcanic eruption at WAIS Divide.

Given the fact that internally the earth itself has large temperature changes which melts the upper mantle and deep crust producing volcanic eruptions at the surface, it is not difficult to see that the thermal energy involved and the mass of the earth itself, that the earth's own internal temperature fluctuations might have bigger effect on the atmosphere's temperature than the sun.

The Arctic Ocean is a huge reservoir of water that can readily absorb and disperse the heat and volatile gases from the volcanic eruptions at the seafloor.

Not exact matches

Unrest at large calderas rarely ends in eruption, encouraging vulnerable communities to perceive emergency warnings of volcanic activity as false alarms.

The account of the great theopliany at the holy mountain is, inter alia, a veiled record of a volcanic eruption (Exod.

The extinction at the end of the Permian is thought to have been caused by volcanic eruptions in Siberia over hundreds of thousands if not a million years that produced what are known today as the Siberian Traps: lava fields covering much of northern Russia and originally encompassing nearly 3 million square miles with an average thickness of about 1,000 feet.

Th experiment suggests that enhanced UV - B at the end of the Permian, caused by ozone depletion from volcanic eruptions, could have contributed to Earth's largest mass extinction.

Benca irradiated 18 - inch - tall, bonsai - like pines with UV - B dosages up to 13 times stronger than on Earth today, simulating the effects of ozone depletion caused by immense volcanic eruptions that occurred at the end of the Permian Period.

Dr Ubide said it was currently very difficult to predict volcanic eruptions — as evidenced by the eruption at Mount Agung in Bali, which started last November after 2 months of precursory earthquakes.

The eruption at the Puyehue - Cordón Caulle Volcanic Complex, a chain of volcanoes in Chile, spewed ash clouds up to 45,000 feet into the air in early June.

Air bubbles collect and explode at the surface of many viscous liquids, as observed with polymer foams, in glass furnaces, and during volcanic eruptions.

Dust found in the ice gives a record of what was in the air thousands of years ago, whether from volcanic eruptions or human activity, and the isotopic composition of the hydrogen and oxygen molecules in the snow give a record of the temperature of the earth at the time.

«The volcanic eruption has now moved on to the next, more severe, magmatic eruption phase, where highly viscous lava can trap gases under pressure, potentially leading to an explosion,» says Mark Tingay, a geologist at the University of Adelaide in Australia.

It would also suggest that the area is at high risk from volcanic eruptions.

Similar soot particles can still be found from the volcanic eruptions that aided the mass extinction at the end of the Permian period around 252 million years ago.

Based in the Department of Geological Sciences at the University of Canterbury in New Zealand, the Natural Hazards Research Centre specialises in earthquakes and volcanic eruptions.

«Improving how we anticipate activity using new technology such as this is an important first step in doing better at forecasting and preparing for volcanic eruptions,» said STREVA Principal Investigator, Dr Jenni Barclay.

In years influenced by volcanic eruptions, Nile flooding was generally diminished, leading to social stress that could trigger unrest and have other political and economic consequences,» says Joseph Manning, lead author on the paper and the William K. & Marilyn Milton Simpson Professor of History and Classics at Yale.

RADIO receivers at the edge of volcanic craters could be tuned into a network of navigation satellites to provide a safe early warning of eruptions.

Search and recovery efforts for at least two dozen victims of Japan's worst volcanic eruption in decades were called off on Tuesday due to worries about rising volcanic activity

The team also showed for the first time that this recovery has slowed somewhat at times, due to the effects of volcanic eruptions from year to year.

The volume of ash deposited, and the estimated height of the eruption plume (43 kilometers above sea level) put the eruption's magnitude at a minimum of 7 on the volcanic explosivity index (which has a scale of 1 to 8)-- making it one of the largest known in the Holocene.

«Creating a stopwatch for volcanic eruptions: Potential for future eruptions at Yellowstone volcano.»

«Our results suggest an eruption at the beginning of Yellowstone's most recent volcanic cycle was triggered within 10 months after reheating of a mostly crystallized magma reservoir following a 220,000 - year period of volcanic quiescence,» says Till.

On at least three occasions during the past 7,000 years, the penguin population was similar in magnitude to today, but was almost completely wiped out locally after each of three large volcanic eruptions.

«It's clear that volcanic eruptions systematically suppressed Nile flow,» says Joseph Manning, a historian at Yale University and co-author of the new analysis.

The height of exploration may have occurred at the peak of cooling: Starting in the late 16th century, a series of volcanic eruptions likely chilled the Northern Hemisphere by as much as 1.8 degrees Celsius below the long - term average, White says.

The thinking, Misra said, was that explosive volcanic eruptions usually happen at the edges of tectonic plates, making them a good proxy indeed.

In June, scientists at the National Oceanic and Atmospheric Administration announced that they had finally found the cause of the hiatus, and it wasn't shifting winds or pint - size volcanic eruptions as some scientists proposed.

But in a new study researchers have shown conclusively that a new form of low - energy lightning is also active during eruptions, arcing between particles as they exit the volcanic vent at around 100 metres per second.

«Most of these events have been blamed, at various times, on volcanic eruptions and asteroids impacts.

Measurements show that CO2 appears to be building up in the lake at about 5 million cubic metres a year, he says, while no evidence has been found of a volcanic eruption.

Now, subtle traces of volcanic ash at Pinnacle Point, a famous archaeological site on the southern coast of South Africa, suggest that at least some groups of early humans survived, and even thrived, in the eruption's aftermath.

For the first time, this study allowed researchers to analyse the effects of the climate change on the forest nutrient cycles, and states that Pyrenean forests can register these episodes chemical mark at a global scale (for instance, volcanic eruptions in remote areas) and the effects of gas emissions into the atmosphere since the Industrial Revolution.

Researchers are finally beginning to understand the mysterious bolts of lightning created by volcanic eruptions, such as this one at Alaska's Mount Augustine.

In a study published online in the Bulletin of the Seismological Society of America, David Fee of the Alaska Volcanic Observatory and Wilson Alaska Technical Center and his colleagues used these techniques to examine the ground - coupled airwaves produced by recent eruptions at Cleveland, Veniaminof and Pavlof volcanoes in Alaska.

Knowing the timing and duration of an eruption, the altitude and amount of the volcanic emissions are critical for an accurate volcanic forecast model being developed at the Goddard Modeling and Assimilation Office.

Today at a briefing for journalists, Toshitsugu Fujii, who chairs the JMA Coordinating Committee for Prediction of Volcanic Eruptions, got a chance for rebuttal.

The study, published online today in Nature Communications, used sophisticated climate model simulations to show that El Niño tends to peak during the year after large volcanic eruptions like the one at Mount Pinatubo in the Philippines in 1991.

At the dark bottom of our cool oceans, 85 percent of the earth's volcanic eruptions proceed virtually unnoticed.

But other scientists have pointed to natural causes, including volcanic eruptions, disease, and climate change at the end of last Ice Age, as the key reasons for these species» demise.

This process leads to the eruption of large volcanic material (flood basalts) at the Earth's surface.

These had been hinted at last year, when Alex Evans at the University of Arizona and colleagues used GRAIL maps to find evidence of more than 100 craters buried beneath seas of basalt formed by ancient volcanic eruptions.

The latest volcanic eruption occurring on Jeju Island was volcanic activity known to have spewed around 7,000 years ago at Mt. Songak.

A new discovery in the study of how lava dome volcanoes erupt may help in the development of methods to predict how a volcanic eruption will behave, say scientists at the University of Liverpool.

Armed with a clear timeline, the archeologist Marean was able to show that those human ancestors living at Pinnacle Point and Vleesbaai — located about five miles apart — showed remarkable improvement in their life style during the volcanic winter caused by the Toba eruption.

Supervolcano isn't a true scientific term, Benson explained, but generally refers to a volcanic eruption that produces at least 1,000 cubic kilometers of material.