Sentences with phrase «tropical eruptions»

As a test of the models» annular sensitivity, the response to volcanic aerosols in the stratosphere is calculated during the winter following five major tropical eruptions.

As for the large tropical eruptions and * global * cooling relationship, uncontroversial in the literature it might be.

If anything, what Willis is describing is a possible homeostatic mechanism that supplies the missing subtle forcing described here: «Our results do not indicate that explosive tropical eruptions trigger all El Niño events.

So only tropical eruptions tend to blanket the global lower stratosphere, which is how you get a substantial global mean cooling.

But while AD 1258 is the most prominent example of the phenomenon we're addressing in the paper, we find a very similar story for AD 1452 and AD 1809 + AD 1815 (Tambora) sequence, where we know the volcano that erupted, and there is little doubt of a large and explosive tropical eruption.

Re: Mike's response to Fred @ # 4 — is there a chance that 1258 was not a single tropical eruption but two or more more localised ones?

Are they still valid, if an external forcing leads to a very strong but rather short - term disturbance (e.g. a very strong volcanic eruption) that either acts regionally (high - latitude eruption) or hemispherically (tropical eruption)?

Not exact matches

A veil or aerosol layer that stems from an eruption in the tropics spreads first around Earth's equatorial belt, the so - called tropical pipe, and then flows north and south toward the poles.

The second event was a paper published by Cole - Dai and two colleagues titled «Ice Core Evidence for an Explosive Tropical Volcanic Eruption 6 Years Preceding Tambora.»

Beyond human activity, tropical sea surface temperatures further back in time are affected by volcanic eruptions, changes in the intensity of sunlight and natural events like El Niño.

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.

They suggest the «little chill» started with a 50 - year episode of four massive tropical volcanic eruptions.

«There is an emerging understanding of the physical mechanisms behind changes in the monsoons and tropical rainfall after such eruptions,» says Toohey.

The short - term variations are dominated by ENSO but also can be influenced by large tropical volcanic eruptions (such as occurred in 1963, 1982 and, markedly, 1991), so the years after those eruptions are anomalously cool.

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

In any year, temperatures around the world can be nudged up or down by short - term factors like volcanic eruptions or El Ninos, when warm water spreads over much of the tropical Pacific Ocean.

Kinds of natural disasters Meteorological natural disasters • Lightning • Tornadoes • Hurricanes • Tropical Storms • Blizzards • Hail Climatological natural disasters • Drought • Extreme Heat • Wildfires Geological / geophysical natural disasters • Earthquakes • Volcanoes • Sinkholes Hydrological natural disasters • Tsunamis • Floods • Limnic eruptions Extraterrestrial natural disasters • Asteroids and Meteorites • Solar storms Summary The Problem You Face - Not having the time to properly teach scientific literacy (disciplinary literacy) or improve your students reading comprehension and analysis skills.

The eruption of Volcano Pacaya and the arrival of Tropical Storm Agatha struck a devastating -LSB-...]

Volcanic eruptions have helped make Costa Rica's soil highly fertile, which directly benefits the growth of dense tropical rainforests.

The two pyramidal cones, covered with thick tropical vegetation, were formed by lava from a volcanic eruption 30 to 40 million years ago.

Following the eruption of Mount Agung two decades later in 1963, the wreck got pushed some 25 meters further out until it eventually rested at a depth of 30 meters and eventually became home to colourful coral colonies that teem with tropical fish.

The volcanic eruption of Mount Agung two decades later pushed the wreck 25m out to sea, resting at a depth of 30m, and eventually becoming home to colourful coral colonies teeming with tropical fish.

The paper uses evidence and modeling to explain how the sun - blocking impact from a 50 - year stretch of unusually intense eruptions of four tropical volcanoes caused sufficient cooling to produce a long - lasting shift in the generation and migration of Arctic Ocean sea ice, with substantial consequences for the Northern Hemisphere climate that lasted centuries and left a deep imprint on European history.

The highly accurate ice core data sets rathr precise dates for three major (and tropical) eruptions for which previous studies by traditional methods of paleogeology gave only poorer approximations.

Re: tropical vs high latitude volcanic eruptions — I know the effect is likely negligible, but tropical locations are selected for launches into space because of centripetal force, right?

It actually ended up reinforcing a controversial hypothesis that had been put forward more than two decades ago by a scientist who had argued there was a relationship between tropical volcanic eruptions and El Nino events.

Shindell D.T., Schmidt G.A., Mann E.M. and Faluvegi G. (2004) Dynamic Winter Climate Response to Large Tropical Volcanic Eruptions since 1600, Journal of Geophysical Research, 109, D05104, 1 - 12.

The researchers found that Mount Pinatubo's eruption still kept much of the world dry, even after taking into consideration the drying effects of El Niño an abnormal warming of surface ocean waters in the eastern tropical Pacific.

Their causes range from completely unpredictable events like volcanic eruptions (which have mainly local effects) to more regular phenomena such as «El Niño» (a warming of the surface waters of the tropical Pacific that occurs every three to five years, temporarily affecting weather world - wide).

The researchers studied eruptions including one in 1258 from an unknown tropical site, thought to be the largest of the last millennium; the 1600 - 1601 eruption of Peru's Huaynaputina; Tambora in 1815; the 1883 explosion of Indonesia's Krakatau; Mexico's El Chichón, in 1982; and Pinatubo.

Vernier, J. - P., L.W. Thomason, et al. 2011: Major influence of tropical volcanic eruptions on the stratospheric aerosol layer during the last decade.

However, if there are really significant tropical volcanic eruption (s)(like Tambora in 1815 or Samalas in 1257) then there will also be sustained global cooling in the following decades.

From CSIRO: «What we learned is that in spite of droughts, floods, volcano eruptions, El Niño and other events, the Earth system has been remarkably consistent in regulating the inter-annual variations in atmospheric carbon dioxide levels,» Tropical ecosystems regulate variations in Earth's carbon dioxide levels Rising temperatures, influenced by natural events such as El Niño,...

In any year, temperatures around the world can be nudged up or down by short - term factors like volcanic eruptions or El Ninos, when warm water spreads over much of the tropical Pacific Ocean.

The short - term variations are dominated by ENSO but also can be influenced by large tropical volcanic eruptions (such as occurred in 1963, 1982 and, markedly, 1991), so the years after those eruptions are anomalously cool.

Most agree it's difficult to determine exactly what is driving late summer temperatures in the tropical Atlantic — be it natural climate variability, greenhouse gases or some other factor, such as volcanic eruptions.

Four massive tropical volcano eruptions started the Little Ice Age as early as 1275AD and caused cooling that lasted 500 years, say scientists.

After the eruption, as soon as the temperature starts to drop, we get less and later daily tropical clouds and thunderstorms, and this rapidly counteracts the loss of radiation.

Note that an hour of extra cloud - free tropical noon sunshine per day is an additional 20 W / m2 on a 24/7 basis... just saying, it doesn't take much change in cloud onset time to adjust for a 2 W / m2 reduction in incoming energy due to an eruption.

Tropical volcanic eruptions, which were frequent in the 19th century (e.g., Tambora in 1815, and Krakatoa in 1883), became much rarer after the Santa Maria eruption of 1902 and the 1912 Katmai eruption.

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).

Travel insurance providers will not cover known events, such as named tropical storms, named winter storms or volcanic eruptions.