Sentences with phrase «know volcanic eruptions»

We know some volcanic eruptions cause cooling.

While we know volcanic eruptions can cool the planet with particles for a year or two, the long - term impact of these volcanoes is actually adding to global warming.

Most of the continent's known volcanic eruptions have occurred along this subduction zone as well.

We are emitting carbon dioxide 10 times faster than one of the world's largest known volcanic eruptions (the Deccan Traps) that was implicated in the Cretaceous - Tertiary extinction event 65 million years ago.

The layers are matched to calendar years using the telltale deposits of known volcanic eruptions; and 3) connecting the ages of the ice and the air — i.e., the time difference between snow falling and air bubbles getting enclosed — is a problem all of its own.

Over the last millennium the agreement between the tree - ring data and volcano / ice - core data is high: years of ring - width minima can be matched with known volcanic eruptions or ice - core volcanic signals in 86 % of cases.

Not exact matches

Besides knowing a lot more about the transport of volcanic aerosols in the atmosphere, modern researchers had communications lines and satellites so that news of an eruption could be relayed quickly and the effects noted as they unfolded.

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.

Volcanoes are complex geothermal phenomena, and as every kid knows, a volcanic eruption is caused when someone puts a tablespoon of baking soda into a crater of vinegar.

These giant waves, caused by earthquakes, volcanic eruptions, and underwater landslides, are some of the deadliest natural disasters known; the 2004 tsunami in the Indian Ocean killed over 230,000 people, a higher death toll than any fire or hurricane.

This phenomenon, confusingly called true polar wander, is known to happen on Mars, where huge volcanic eruptions change the planet's weight distribution, but it is controversial whether that could happen on Earth.

Using an interdisciplinary approach that combined evidence from climate modelling of large 20th - century eruptions, annual measurements of Nile summer flood heights from the Islamic Nilometer — the longest - known human record of environmental variability — between 622 and 1902, as well as descriptions of Nile flood quality in ancient papyri and inscriptions from the Ptolemaic era, the authors show how large volcanic eruptions impacted on Nile river flow, reducing the height of the agriculturally - critical summer flood.

First, volcanic eruptions produce major quantities of carbon dioxide (CO2), a gas known to contribute to the greenhouse effect.

When Froese's lab identifies a core sample layer of volcanic ash from a known eruption in the area 3,595 years ago, it gives added confidence to the teams» timeline.

The team of researchers examined the hydroclimatic and societal impacts in Egypt of a sequence of tropical and high - latitude volcanic eruptions spanning the past 2,500 years, as known from modern ice - core records.

Researchers know that large amounts of aerosols can significantly cool the planet; the effect has been observed after large volcanic eruptions.

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.

The last known eruptions from Yellowstone were 2m, 1.2 m and 640,000 years ago, and it is believed that these were fed by the volcanic plumbing system that sits beneath it.

The human impact on climate during this era greatly exceeds that due to known changes in natural processes, such as solar changes and volcanic eruptions.»

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.

Knowing both the physical location and the altitude distribution of aerosols in the volcanic cloud allow more accurate forecasts in the days, weeks and months after an eruption.

On July 18, 2012, passengers on an airline flight over the Southwest Pacific Ocean glimpsed something unusual — a raft of floating rock known as pumice that indicated an underwater volcanic eruption had occurred on the seafloor northeast of New Zealand.

Scientists have long known of the cooling effect of major volcanic eruptions, which spew large amounts of light - scattering aerosols into the stratosphere.

Two years earlier, the ash from an unusually large number of major volcanic eruptions reflected so much sunlight that 1816 became known as the year without a summer.

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

The historic temperature pattern we observed has abrupt dips that match the emissions of known explosive volcanic eruptions; the particulates from such events reflect sunlight, make for beautiful sunsets and cool the earth's surface for a few years.

It is also well known that volcanic activity has a cooling influence, and as is well documented by the effects of the 1991 Mount Pinatubo volcanic eruption.

The cause of this relatively short lived cooling (it was not a true «ice age») is not fully known, but the sun could have been cooler, there may have been more volcanic eruptions, there is a small but persistent cooling trend due to orbital cycles (as explained above).

In Earth's past the trigger for these greenhouse gas emissions was often unusually massive volcanic eruptions known as «Large Igneous Provinces,» with knock - on effects that included huge releases of CO2 and methane from organic - rich sediments.

Impact of known local and tropical volcanic eruptions of the past millennium on the WAIS Divide microparticle record.

The effects of aerosol injections are at least somewhat known, since volcanic eruptions produce aerosols naturally and have produced cooling in the past.

A volcanic eruption gives birth to horrible giant creatures, one of which is known as The Black Scorpion (1957).

If you live in the Pacific Northwest you know in the back of your mind that volcanic eruption is a small possibility.

The first type of policy, HO - 1, is known as the basic home insurance policy and includes coverage of these basic perils: fire or lightning, windstorm or hail, riot or civil commotion, explosions, damage from vehicles, damage from aircraft, smoke damage, vandalism, theft, volcanic eruption, glass or safety - glazing material damage.

We therefore don't know what specific type, frequency or size of volcanic precursors — that is, events that precede an eruption — to look for with Agung volcano.

With its volcanic origins, and due to past century eruptions, many parts of Lanzarote appear to be from another planet, no doubt a contributing factor in the decision to film parts of the Planet of the Apes here.

Nearby Mount Tarawera is known for its devastating volcanic eruption of 1886 which, in destroying three whole villages, also buried The Pink and White Terraces, a geological phenomenon considered to be the eighth wonder of the world.

Once circular, it was known as Strongili, «the Round One», but some 3,600 years ago, at the height of the ancient Minoan civilization, a mighty volcanic eruption caused the centre of Strongili to sink, leaving a water - filled crater — Santorini's famous caldera.

Janet Biggs will show Afar (2016), a three - channel work shot on location in the Afar Triangle, an area in Africa known for its earthquakes and volcanic eruptions.

In his recent exhibition at Federica Schiavo Gallery, the artist found inspiration in the caverns located underneath the Naica Mine in Mexico that hold some of the biggest natural crystals known on Earth, and the petrified tree forest on Hawaii Island that formed after a volcanic eruption in 1970.

I'm not saying this is going to happen, it's just a possibility which might start f.e. with a large volcanic eruption or a large earthquake near or under WAIS, I don't know how probable those are.

«Those sharp dips are from volcanic eruptions that were put in to make the scenarios more realistic (though of course no - one knows when the next big climate - affecting eruption will be).

In fact, we know that major heat releases such as volcanic eruptions are, by definition, not steady.

Furthermore, it would be interesting to know how eg stratospheric dust from say volcanic eruptions show up in the «earthshine».

The cause of this relatively short lived cooling (it was not a true «ice age») is not fully known, but the sun could have been cooler, there may have been more volcanic eruptions, there is a small but persistent cooling trend due to orbital cycles (as explained above).

Do you know about, or can you refer me to someone who may know about, the climate effects of the other Tambora - scale volcanic eruption (VEI = 7) of the last millenium — from Changbaishan (Baitoushan) on the China - NKorea border (42oN latitude) sometime between 960-1025 AD?

There is no right answer for this, since we lack any basis to forecast whether a volcanic eruption will happen and what it's contribution to stratospheric aerosols will be.

It is THAT warm - up that should concern us in our attempt to understand the rise from 1910 to 1940, not the temporary blip caused by a cooling and subsequent rebound due to a volcanic eruption, no matter how intense.

For example, collectors from March 1981 contain abundant silicic volcanic ash although no volcanic eruption was known to have directly penetrated the stratosphere (Zolensky and Mackinnon, J. Geophysical Research 90, No.

«Since 1981 the following volcanic eruptions are known to have placed material directly into the stratosphere: El Chichon (March 1982), Nevado del Ruiz (Nov. 1985), Mt. Augustine (March 1986), and Mt. Pinatubo (June 1991).