Sentences with phrase «as volcanic ash»

We have plenty of experience in putting together great holidays for single travellers and, on the rare occasion when things go wrong — such as the volcanic ash disruption in 2010 or yet another strike — we have robust operational procedures.

State - owned airport operator PT Angkasa Pura I (AP I) has extended the closure of I Gusti Ngurah Rai International Airport by another day, until 7 a.m. on Thursday, as volcanic ash from Mount Agung is still found in airspace near the airport.

These can include engineered (or man - made) nanometer - scale objects such as nanoparticles, nanotubes, and nanofilms, as well as naturally occurring nanoparticles such as volcanic ash, sea spray, and smoke.

As volcanic ash shields the Earth from solar radiation, unusually cool temperatures rose, leading to famines and plagues.

A future challenge for researchers, Jackson says, will be to «find ways to activate aggregates, as slag or as volcanic ash for example, in innovative concretes so that these can develop strätlingite reinforcements in interfacial zones like the Roman architectural mortars.»

Not exact matches

To get the sweeter, less - acidic San Marzanos that are grown in the volcanic ash - rich soil below Mount Vesuvius, you must look for the Denominazione d'Origine Protetta («Protected Designation of Origin») stamp, otherwise known as DOP.

A steady stream of advice from local authorities, seemingly focusing on ways to make life difficult for teachers who have been stranded as a result of the disruption of travel arrangements by the volcanic ash cloud, continues to emerge.

Tomorrow would have marked the first of 20 days of strike action, further reducing BA's chances of survival as it is beset by industrial action and the impact of the volcanic ash cloud.

They then applied a precise dating technique based on natural radioactive decay of uranium, as Urs Schaltegger added: «In the sedimentary cross-sections, we found layers of volcanic ash containing the mineral zircon which incorporates uranium.

They found carbon layers on the bones with a structure and composition that suggests they are charred soft tissue — and the limbs of skeletons are flexed as if they had been trapped in volcanic ash (Nature Communications, DOI: 10.1038 / ncomms4151).

Airliners may have to avoid these in future, just as they do with volcanic ash clouds, to minimise any risk to travellers and crew.

Environmentally friendly modern concretes already include volcanic ash or fly ash from coal - burning power plants as partial substitutes for Portland cement, with good results.

The 3.5 - million - year - old hominids appeared as models in an exhibit that had just opened at the American Museum of Natural History in New York City; the replicas were based, in part, on fossilized footprints preserved in volcanic ash at Laetoli, Tanzania, which showed unequivocally that these creatures had walked upright.

LONDON (Reuters)- The world's first man - made ash cloud has been created by a team led by airline easyJet and planemaker Airbus to test how passenger aircraft cope with volcanic blasts such as the 2010 Icelandic eruption.

More than 2000 times as massive as the blast that ripped open Mount St. Helens in 1980, the Indonesian «super-volcano» Toba ejected millions of metric tons of volcanic ash, sulfur, and other debris into the atmosphere 74,000 years ago.

Certain low - frequency activity may signal that a volcano is likely to spout an ash cloud, a column of jagged volcanic sand that can reach as high as 30,000 feet.

Airlines are prudently cautious, because volcanic ash is especially dangerous to airplanes, as ash can melt within an operating aircraft engine, resulting in possible engine failure.

Jackson said that lime (also known as calcium oxide, or CaO)-- exposed to seawater in the Roman concrete mixture — probably thoroughly reacted with volcanic ash early in the history of the massive harbor structures.

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.

On Earth, the teams will use simulated lunar dirt, known as JSC - 1, made of volcanic ash.

Toiling in volcanic ash, the group collected fossilized remains of more than 6,000 creatures ranging from antelopes to bats, as well as seeds and geologic samples.

This year was a busy one for meteorologists, as they tracked heat waves, monsoons, and winds carrying volcanic ash.

I won't argue that our added gases may contribute to the warming to some very, very small degree, but keep in mind, the ash plume from a good volcanic eruption such as the last big Pinatubo eruption eclipses into insignificants the amount of pollutants added to the atmosphere by human activity.

This allows the researchers to use desert dust as an analogue for volcanic ash to test their system when they don't have a volcanic ash cloud to work with.

In the International Civil Aviation Organization (ICAO) Volcanic Ash Contingency plan for Europe and North Atlantic, three ash contamination levels have been defined as described below.

Using the Saharan Air Layer as a proxy for volcanic ash, the test aircraft will now fly over the Atlantic Ocean west of Morocco to prove the equipment can detect the fine particles of sand at altitudes of up to 20,000 feet and a distance of around 100 km.

Minerals, such as the silica in volcanic ash, seep into the tree and fill in tiny pores in wood's cells.

Others asserted the prints were indistinct and did not establish the characteristics of a fully extended stride, a deep heel strike and a nearly as deep (as when impressed on wet sand or moistened volcanic ash) «toe off», the impression left by the ball of the foot and toes when one, while walking, pushes off and shifts weight to the other leg.

That left the El Chichon and Pinatubo volcanic eruptions in 1982 and 1991 as the remaining major natural perturbations to the climate trend, although that had as much to do with the timing of the eruptions as it did with the cooling caused by the nearly global distribution of volcanic ash in the upper atmosphere.

A volcano is a rupture in the crust of a planetary - mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber Evolutionists have long used the carbon - 14, or radiocarbon, dating technique as a «hammer» to bludgeon Bible - believing Christians.

An estimated 59,000 travelers have been stranded in Bali by the eruption of Mount Agung, as a cloud of volcanic ash has interrupted flights.Despite... Read More

An estimated 59,000 travelers have been stranded in Bali by the eruption of Mount Agung, as a cloud of volcanic ash has interrupted flights.

Volcanic ash that spread after the eruption on Saturday afternoon resulted in the closure of Ngurah Rai International Airport in Bali and the Lombok airport as well as the cancellation of hundreds of flights.

Read about the fear and awe local residents felt as the skies darkened and ash rained from the sky in Witness: First Hand Accounts of the Largest Volcanic Eruption of the 20th Century.

Villagers look on as Mount Sinabung volcano spews thick volcanic ash in Karo, Indonesia, on Friday, May 19.

Regarded as the best - preserved Roman city in the world having spent the best part of two millennia buried by volcanic ash.

Many Costa Ricans have vivid memories of the four years in which Cartago and San Jose were continually covered with volcanic ash and smoke as Irazu Volcano continually erupted.

I won't argue that our added gases may contribute to the warming to some very, very small degree, but keep in mind, the ash plume from a good volcanic eruption such as the last big Pinatubo eruption eclipses into insignificants the amount of pollutants added to the atmosphere by human activity.

I say usually, since there are cases such as the trees flattened by the Tunguska impact, or buried by volcanic ash, that quite obviously recorded direct effects these event.

I've sometimes thought that global cataclysms like the largest volcanic eruptions would disrupt the glacial records by many years, like Oruanui eruption c. 26500bp, as these would induce unrecorded behavior in weather and other things, f.e. the huge ash deposits might decrease the albedo so much a local melting event happens.

We will now be able to measure and track Sun - induced space weather as well as global climactic trends in ozone levels, aerosols, vegetation, volcanic ash, and Earth reflectivity, all in high resolution; just the kind of data our civilization needs to make informed cultural, political, and scientific decisions that affect our future.

One «theory» for the strength of the Permian - Triasac extinction is that the volcanics (roughly a million cubic kilometers worth) erupted through thich layers of coal, and therefore liberated at huge amount of CO2 as well as the usual volcanic gases and ash.

Two major volcanoes — El Chichon in 1982 and Pinatubo in 1991 — caused global average temperature to dip as a result of volcanic ash, soot and debris reflecting sunlight back into space.

The type and amount of trapped particles, such as dust, volcanic ash, smoke, or pollen, tell scientists about the climate and environmental conditions when the snow formed.

As I understand isotope proxies of cosmic ray penetration are used for pretty good solar activity estimation, and ice core ash is a pretty reliable proxy of volcanic activity.

Needless, to say, land - based surface temperatures are impacted by other factors, such as upward trends in UHI, ash clouds from volcanic and war activity, persistent contrails and, perhaps, recent geo - engineering efforts.

Other casualties of the 2006 cuts include an instrument for tracking airborne particles such as sea spray, smog, volcanic ash and smoke — all factors contributing to the warming or cooling of the planet.

Once the ice cores reach storage facilities, scientists digitally record the ice cores» characteristics — such as the presence of volcanic ash or the appearance of bubbles in the ice — in a controlled cold laboratory.

Volcanic eruptions would actually cool the Earth over the short term as fine ash lingers in the stratosphere, reflecting sunlight.

For weeks, Edo, as the capital of Japan was then called, experienced a thick smog of volcanic ash and smoke.