Sentences with phrase «with large volcanic eruptions»

Other dips, such as the one in the mid-1990s, are associated with large volcanic eruptions.

No, the drop in lower stratosphere ozone content since the late 70s is well - correlated with the large volcanic eruptions of El Chichón (1982) and Pinatubo (1991):

Here we are not dealing with large volcanic eruptions of the size of Pinatubo of Mount St. Helens, here we are talking about extreme events: The Toba caldera in the Sumatra subduction zone in Indonesia originated from one of the largest volcanic eruption in recent Earth history, about 74,000 years ago.

One example that I wasn't previously aware of, were the climate events of 536 AD — «dry fogs», crop failures, «dim suns» and yellow snow etc. — features consistent with a large volcanic eruption, possibly near the site of Krakatoa — and which correlates with evidence of a sulphate peak in the North GRIP ice core at the same time.

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.

One example that I wasn't previously aware of, were the climate events of 536 AD — «dry fogs», crop failures, «dim suns» and yellow snow etc. — features consistent with a large volcanic eruption, possibly near the site of Krakatoa — and which correlates with evidence of a sulphate peak in the North GRIP ice core at the same time.

Not exact matches

The spatial deposition of sulfur particles in the bipolar ice cores, as calculated in the model, agrees well with the actually measured deposits of large volcanic eruptions, such as Pinatubo in 1991 or even of Tambora of 1815.

«In any case, the results of our model study give a clear indication that the bipolar variability of sulfate deposits must be taken into consideration if the traces of large volcanic eruptions are to be deduced from ice cores,» says Dr. Krüger, «Several research groups that deal with this issue have already contacted us to verify their data through our model results.»

The drill's filters, which clean water being pumped out of the borehole, became clogged with black dust — «volcanic ashes from some past large volcanic eruption,» speculated Slawek Tulaczyk, a glaciologist from the University of California, Santa Cruz, who has studied this region for two decades and co-leads the drilling project.

Barnhart said the changes from dry to wet periods might have had to do with periods of greenhouse - gas outgassing associated with volcanic eruptions, large impacts, or a change in the tilt of Mars» rotation, though all that remains to be studied further.

She will then focus on recent results her group obtained with regard to extremely large volcanic eruptions on Jupiter's moon Io, and giant storms on Uranus using Keck Observatory.

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.

You can read more about people's direct experiences with the 1912 eruption in Witness: First Hand Accounts of the Largest Volcanic Eruption of the Twentieth eruption in Witness: First Hand Accounts of the Largest Volcanic Eruption of the Twentieth Eruption of the Twentieth Century.

In Costa Rica: Arenal Volcano emits small volcanic explosions every few minutes, with larger eruptions occurring occasionally.

Tenerife is an island formed during a volcanic eruption which created a dry and rocky landscape with large mountains.

(For those «coming in in the middle» — assuming any such are still reading — this subthread began with a link I provided discussing the vulnerability our complex society bears WRT to very large volcanic eruptions, in the context of the robustness of some Stone Age populations who «thrived» during the event — albeit at a considerable distance!)

Much evidence pointed to a large volcanic eruption around AD 536, with no evidence of one in in AD 540, and there was much debate over its climatic effects.

Volcanism is another key driver of historical climate changes, and we have compared the modeled response to large volcanic eruptions with historical data as well.

The iconic climate curve, a combination of observed land and ocean temperatures, has quite a few ups and downs, most of which climate scientists can easily associate with natural phenomena such as large volcanic eruptions or El Nino events.

The 1991 volcanic eruptions (Pinatubo, Hudson) injected 23 Megatonnes of SO2 into the stratosphere, leaving a sulfurous cloud that circled the globe for about 2 years before finally settling out (together with a large quantity of fine particulate matter which rapidly settled out) The sulfurous cloud caused average global temperatures to drop by 0.55 deg.

If large volcanic eruptions (Katla 1755, then in the early 1800's Mayon and Tambora) are taken into account, than GP «proxy» has a good track with the CETs for nearly 350 years span.

The interannual variability in the individual simulations that is evident in Figure 9.5 suggests that current models generally simulate large - scale natural internal variability quite well, and also capture the cooling associated with volcanic eruptions on shorter time scales.

Volcanoes Large volcanic eruptions with high SO2 content can release SO2 into the stratosphere.

Many years of low growth identified in a western USA regional chronology of upper forest border bristlecone pine (Pinus longaeva and Pinus aristata) over the last 5000 yr coincide with known large explosive volcanic eruptions and / or ice core signals of past eruptions.

Over the last century, most of the more prominent drops in global temperature coincide with large, tropical volcanic eruptions (the solid lines in Figure 1).

The total forcing Q is known through observation to take large drops after volcanic eruptions (from the volcanic aerosols reflecting away the sunlight), with similarly large and fast recoveries.

We'd expect to see the imprint of this large error in comparisons with observed surface temperature changes over the 20th century (37 - 42), and in comparisons with the observed cooling after large volcanic eruptions (30, 43, 44).