[Using the GISS record staring in 1991 or 1992 — the cool years just
after the volcanic eruption of Mt. Pinatubo]
Not exact matches
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.
«We have found that the deposition
of sulfur compounds in the Antarctic
after very large
volcanic eruptions in the tropics may be lower than previously thought,» the atmospheric researcher summarizes the findings
of the study which has just been published in the current issue
of the international «Journal
of Geophysical Research — Atmosphere.»
After large
volcanic eruptions that pump sulphur dioxide into the atmosphere, such as that
of mount Pinatubo in the Philippines in 1991, the planet cools for a year or two.
Besides SSCE, scientists have also been investigating stratospheric sulfur injections — firing sun - reflecting aerosols into the air, similar to the cooling effect
after a
volcanic eruption — and cirrus cloud thinning, where you thin the top level
of clouds, which have a warming effect on the planet.
REYKJAVIK (Reuters)- Iceland lowered its warning code for possible
volcanic disruption to the aviation industry to orange from red on Sunday
after further analysis
of an apparent
eruption under a glacier found there had been no
eruption after all.
Researchers know that large amounts
of aerosols can significantly cool the planet; the effect has been observed
after large
volcanic eruptions.
«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.
After decades
of dueling studies about whether it was an asteroid or
volcanic eruptions that did in the dinosaurs, it is apparent that the mineral - deposit evidence is indirect and open to interpretation, even if the scientists advancing the various claims sound pretty sure
of themselves.
Hiatuses can also be triggered by
volcanic eruptions that eject particles into the air, reflecting sunlight away from Earth, as happened
after the
eruption of Mount Pinatubo in 1991.
Not until 201 million years ago did dinosaurs begin to dominate worldwide, say Olsen and Irmis —
after a mass extinction, caused by
volcanic eruptions, wiped out many
of their cold - blooded reptile and amphibian competitors.
Not until
after a catastrophic chain
of volcanic eruptions cooled the Earth and decimated those competitors did dinosaurs become dominant worldwide.
New Zealand scientists mapped the Havre volcano, a caldera nearly three miles (4.5 kilometers) across on the seafloor northeast
of the North Island
of New Zealand, using shipboard sonar instruments in 2002 and again immediately
after the
eruption in 2012, revealing the presence
of new
volcanic material on the seafloor.
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.
Regardless
of artistic style, paintings created soon
after volcanic eruptions had redder skies than those painted during periods
of low
volcanic activity, the researchers report online today in Atmospheric Chemistry and Physics.
The rock regatta Shortly
after the 2006
eruption of an underwater volcano near the Pacific island
of Tonga, researchers found a wide variety
of organisms hitching a ride on
volcanic pumice, Bryan told OurAmazingPlanet.
It's also now well understood that large
volcanic eruptions have a short - term cooling effect, see GW FAQ: effect
of volcanic activity (short - term being the key phrase,
after Church et al Nature 2005, and also http://www.llnl.gov/str/JulAug02/Santer.html)
After the removal from the data set
of short periods
of temperature perturbation that relate to near - equator
volcanic eruption, we use derivatives to document the presence
of a 5 - to 7 - month delayed close relationship between SOI and GTTA.
Zooming in on the period
after 1970, one sees a record
of largely unabated warming, with temperatures increasing steadily accompanied by some short - term variability driven by El Niño and La Niña events, and also by major
volcanic eruptions like Pinatubo in 1992.
The Yellowstone caldera is a complex system
of rock formations that sprung
after a series
of volcanic eruptions some 630,000 million years ago.
Archaeological excavations
of the ancient city
of Pompeii in Italy unearthed perfume - making equipment that had been preserved under
volcanic ash
after the
eruption of Mount Vesuvius in A.D. 79, an
eruption which devastated the area.
hi im interested on ur work but i do nt have much budget my name is luther john and i created our very own first princess fairy tale called the last moondancer Princess Luna the lead female protagonist is based on the character
of ancient Babaylans before the spaniards discovered the philippines She was adopted by the oldest moondancer in puerto princesa
After a cursed
volcanic eruption in mt mayon and was trained all her life to become a moondancer but all her life she only dreams
of finding this magical pearl which believed to be the tear from the Gods that grants ur wishes Moondancers can heal any kind
of sickness when they dance and their powers wer gift from the Goddess
of the Moon Mayari
When its construction was finally finished
after 75 years or so, the building was covered in a thick layer
of ashes from several
volcanic eruptions.
Jakarta, Indonesia (CNN) Authorities have issued the highest - level warning possible
after volcanic eruptions from Mount Agung on the Indonesian resort island
of Bali forced the closure
of the island's main airport and evacuation
of thousands
of residents living nearby.
Kasha - Katuwe Tent Rocks National Monument is a geologic wonder, full
of towering cone - shaped tent rock formations formed
after volcanic eruptions took place six to seven million years ago.
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.
Volcanic ash has fallen onto a number
of villages surrounding Mount Agung in Bali following an
eruption at the island's tallest volcano on Tuesday afternoon, less than a month
after the alert level was lowered.
After leaving Turtle Town we cruise down the south shore
of Maui where our experienced captain gives an informative and historical narration covering celebrity homes, island history and
volcanic eruptions.
Hundreds
of passengers are facing travel disruption
after a
volcanic eruption in Indonesia sent ash clouds over the region, forcing airlines to cancel flights to and from Northern Australia.
Thousands
of tourists have been left stranded
after a
volcanic eruption in Indonesia.
Soemantoro's lithographs convey her reaction to the various stages
of volcanic eruptions, from the initial rumblings and steam explosions, through the massive explosive
eruptions of magma, lava flows, and, finally, the silence
after the chaos subsides.
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.
In other words, if we are
after a cause (or causes) for the temperature increase during the period in question, the presence or absence
of aerosols from
volcanic eruptions is beside the point, because they can not explain any increase in temperatures that occurred prior to any cooling effect they might have had.
After a large
volcanic eruption, the layer
of sulfate aerosols in the stratosphere gets thicker, and we see, in the historic record, that the Earth cools down in response.
Volcanic activity was high during this period
of history, and we know from modern studies
of volcanism that
eruptions can have strong cooling effects on the climate for several years
after an
eruption.
He writes: I say this is a result
of the action
of climate phenomena that oppose the cooling... if my theory were correct, we should see a
volcanic signal in some other part
of the climate system involved in governing the temperature... I should see an increase in the heat contained in the Pacific Ocean
after the
eruptions Thing is, El Ninos release heat from the ocean, they don't store heat.
In fact, the rate
of change
of CO2 levels actually drops slightly
after a
volcanic eruption, possibly due to the cooling effect
of aerosols.
The models currently assume a generally static global energy budget with relatively little internal system variability so that measurable changes in the various input and output components can only occur from external forcing agents such as changes in the CO2 content
of the air caused by human emissions or perhaps temporary
after effects from
volcanic eruptions, meteorite strikes or significant changes in solar power output.
2) There are errors in the assumed forcings, such as: a) AR5 let stratospheric aerosol concentration go to zero
after 2000 (a sure way to prod the models into higher predictions), but it actually increased for the next 10 years «probably due to a large number
of small
volcanic eruptions».
From the paper: «The results also 1) reveal a significant level
of coupling between ocean and land temperatures that remains even
after the effects
of ENSO and
volcanic eruptions have been removed; 2) serve to highlight the improvements in the quality
of the time series
of global - mean land temperatures with the increase in the areal coverage
of the station network from 1951 onward; and 3) yield a residual time series in which the signature
of anthropogenically induced global warming is more prominent.»
Generally, a significant cooling
of the surface occurs in the first weeks
after major
volcanic eruptions, lasting for one to two years and leading to modified patterns
of precipitation, surface pressure and the teleconnection patterns, such as the Arctic Oscillation (AO), North Atlantic Oscillation (NAO)
After the removal from the data set
of short periods
of temperature perturbation that relate to near - equator
volcanic eruption, we use derivatives to document the presence
of a 5 - to 7 - month delayed close relationship between SOI and GTTA.
«Climate models used historic data for factors like greenhouse gas concentrations, solar output,
volcanic eruptions, air pollution, and other factors that can affect the climate through 2005 or so, but
after that point made assumptions
of how these would change in the future.
This result compares well with the observed hemispheric transport
of volcanic debris leading to «the year without a summer» in 1816 in the northern hemisphere
after the 1815 Tambora volcano cataclysmic
eruption in Indonesia in 1815.
If you look at the the lower stratospheric temperature, you do see a large positive temperature perturbation immediately
after the
volcanic eruption (this is expected
of course), but rather than returning to the same relatively constant temperature, it shifts to a new, lower temperature operating point.
200 years
after the
eruption of Mount Tambora, the
eruption volume remains poorly known, as is true for other
volcanic eruptions over past millennia.
In contrast, global avg temperature data do show that
after a dip (e.g. due to a strong
volcanic eruption), the data go back to the level that they would have had in the absence
of the dip.
As they stand at present the models assume a generally static global energy budget with relatively little internal system variability so that measurable changes in the various input and output components can only occur from external forcing agents such as changes in the CO2 content
of the air caused by human emissions or perhaps temporary
after effects from
volcanic eruptions, meteorite strikes or significant changes in solar power output.
Lindenthal, Langmann, Patsch, Lorkowski Hort (2013) «The ocean response to
volcanic iron fertilisation
after the
eruption of Kasatochi volcano: a regional - scale biogeochemical ocean modelstudy.