Sentences with phrase «between volcanic eruptions»

How the seasonal weather changes at a particular climate depends on ocean currents so you can have correlation between volcanic eruptions and «global climate» but one is not necessarily affected by the other.

There obviously COULD be a correlation between volcanic eruptions and melting ice.

The largest eruption of the 20th Century inspired a large amount of research on the connection between volcanic eruptions and the Earth's atmosphere in the 12 years since that eruption, as exemplified by the chapters in this book.

Now, teamwork between volcanologists and historians has revealed a close match in timing between volcanic eruptions and domestic unrest, revolts and uprisings that led to the kingdom's downfall.

But while the connection between volcanic eruptions and tectonic plates is true on Earth, Misra said the team can not say with certainty that the same is true throughout the cosmos.

Once the team discovered the link between volcanic eruptions and reduced Nile flooding, they turned their attention to more ancient times — specifically, to the period from 305 B.C.E. to 30 B.C.E., when Greeks ruled a dynasty centered in Egypt.

Not exact matches

Earth's mantle, the large zone of slow - flowing rock that lies between the crust and the planet's core, powers every earthquake and volcanic eruption on the planet's surface.

The contribution, about 15 percent of aerosols in total, was similar to the «sum of small volcanic eruptions between 2000 and 2015.»

The researchers were able to show a recurring close timing between such events and the dates of major volcanic eruptions.

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.

De Natale said that information obtained from sensors placed inside the wells will help to understand the «bradyseism» — the rising and falling of Earth's surface resulting from the movement of magma inside a caldera — occurring in the Campi Flegrei area and to find out whether there is a connection between this phenomenon and volcanic eruptions.

But in a new study researchers have shown conclusively that a new form of low - energy lightning is also active during eruptions, arcing between particles as they exit the volcanic vent at around 100 metres per second.

In other words, there seems to be a concrete link between the vibrant colors and the fact that the paintings were created shortly after a volcanic eruption.

The team found that the eruption history of the Havre volcano was much more complicated than they previously thought, with the most recent eruption alone consisting of lava from 14 volcanic vent sites between 900 and 1220 meters (3000 and 4000 feet) below the surface.

Minor volcanic eruptions substantially slowed Earth's warming between 2000 and 2013, a new study suggests.

Indeed, the era between 65,000 and 25,000 years ago, toward the end of the Paleolithic, was a time of major volcanic eruptions, along with extremes of climate that included rapid shifts in temperature accompanied by alternately creeping and contracting glaciers across many regions of Eurasia.

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.

By comparing volcanic activity to records of social unrest, the researchers found a correlation between the two that was too closely matched to dismiss: «In years influenced by volcanic eruptions, Nile flooding was generally diminished, leading to social stress that could trigger unrest and have other political and economic consequences,» Manning said.

Between 3 million and 5 million years ago, a series of volcanic eruptions formed the Galápagos archipelago, a chain of 19 islands and dozens of islets.

Along with Santa Barbara Island, Anacapa was formed by volcanic eruptions between 19 and 15 million years ago.

McGuire conducted a study that was published in the journal Nature in 1997 that looked at the connection between the change in the rate of sea level rise and volcanic activity in the Mediterranean for the past 80,000 years and found that when sea level rose quickly, more volcanic eruptions occurred, increasing by a whopping 300 percent.

It's worth posting the voices of a few more scientists to address persistent questions here about a possible connection between retreating Arctic Ocean sea ice and seabed volcanic activity two miles below — including a Vesuvius - size eruption in 1999.

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?

The decay times of volcanic aerosols are approximately exponential, though there are seasonal and geographic influences *; Observations vary from ~ 5 to 95 months for 1 / e; eruption durations vary from week to decades; the mean time between VEI 4 eruptions is 18 months.

Similarly, a lack of strong volcanic eruptions between 1905 and 1961 may have contributed, but does not overlap uniquely with the war ming interval.

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.

When we tried to reconstruct past climate patterns we learned that there was this interesting relationship between past very large volcanic eruptions and the timing of some of the large El Nino events in past centuries.

Then you actually need to be able to say something about how climate change will influence El Nino, and by studying the past relationship between El Nino and natural factors like volcanic eruptions we could potentially better inform our understanding of how the El Nino phenomenon will respond to climate change.

For instance, I think someone mentioned a scenario which had several volcanic eruptions between 1988 and now.

This factor, when multiplied times the amount of reduction in tropospheric aerosol emissions, between 1975 and another later year will give the average global temperature for that year (per NASA's J - D land - ocean temperature index values) to within less than a tenth of a degree C. of actuality (when temporary natural variations due to El Nino's, La Nina's, and volcanic eruptions are accounted for).

ABSTRACT From 1950 to 1987 a strong relationship existed between the El Nino Southern Oscillation (ENSO) and HadCRUT4 global average temperature anomaly, interrupted occasionally by 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.»

The new study tracks the correlation of carbon isotope variation and volcanic eruptions from the 19th century until recent years, and shows the dramatic reduction in available sunlight in 536 as well as between 541 and 544 CE.

«This is a consequence of variations in heat exchange between the atmosphere and the oceans, and other decade - to - decade changes like variations in solar forcing and the solar dimming effects of pollution and volcanic eruptions,» BoM says.

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.

Difficult, complicated science questions like the interplay between natural climate variability (e.g., volcanic eruptions, solar minimums, the El Niño - La Niña cycle) and manmade, fossil fuel - based energy consumption — which accelerates greenhouse gas emissions and drives climate change — still need further clarification.

(U.S. government satellite image) The Failure of Uniformitarianism Uniformitarianism is based on the belief that «The Present is the Key to / such as Washington Scab - lands, meteor impacts, major volcanic eruptions Reversals of the earth's magnetic field Clearly defined boundaries between strata worldwide (e.g., K - T /

Secondly, it was a recovery phase from several major volcanic eruptions between 1883 - 1910.

The glacial - interglacial cycles are an example of tight coupling between climate and the carbon cycle over long time scales, but there is also clear evidence of the carbon cycle responding to short - term climatic anomalies such as the El Niño - Southern Oscillation (ENSO) and Arctic Oscillation (Rayner et al., 1999; Bousquet et al., 2000; C. Jones et al., 2001; Lintner, 2002; Russell and Wallace, 2004) and the climate perturbation arising from the Mt. Pinatubo volcanic eruption (Jones and Cox, 2001a; Lucht et al., 2002; Angert et al., 2004).

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.

Other factors that could adversely impact the correlation between the sun and temperature include time lags in the transposition of a climate impulse, or cooling events through sun - blocking aerosols from large volcanic eruptions.

Moreover there is little overlap between the periods used to estimate the TLC reflection — SST relationship from model simulations and observations, and there were three major volcanic eruptions during 1959 - 2005 but none during the 2000 - 2015 observational period.

The difference between 0.5 to 0.6 and 0.84 may be largely due to GCMs often exhibiting too strong a response to volcanic aerosols and / or a tendency for volcanic eruptions to be closely followed by El Nino events.

The relative muting of eruptions between this period and the eruption of Mount Agung in 1963/1964 thus implies a positive forcing, although volcanic emissions during this period are not well known (Neely III & Schmidt, 2016).