Sentences with phrase «volcanic dust»
"Volcanic dust" refers to tiny particles of ash, rock, and other materials that are released into the air during a volcanic eruption. These particles can be carried by wind, spread over large distances, and have the potential to affect weather patterns, decrease visibility, and impact air quality. Full definition
This worldwide volcanic dust veil acted as a solar radiation filter, reducing the amount of sunlight reaching the surface of the earth.
sciencedaily.com
Three main natural sources include volcanic dust, particles of soil, and salt particles.
Solar activity increased to 2000 and volcanic forcing, presumably from volcanic dust levels, are essentially unknown.
All we need to do is create some artificial volcanic dust clouds in the sky.
Bradley, R.S. and England, J., 1978: Influence of volcanic dust on glacier mass balance at high latitudes.
At the time, vegetation there would have been frequently blanketed in volcanic dust from the Yellowstone hotspot and the Columbia River Basalts.
Volcanic dust also has most direct effect in the stratosphere.
«There are three volcanic events in the last 100 years, and we had record sockeye salmon runs in those three volcanic dust events,» George says.
It should contain volcanic dust, similar to the volcanic ash or clay found in their native homes in the Andes.
The Sibetan village owes this extreme soil fertility and abundance of salak plants to the Mount Agung that erupted in 1963, blanketing the village farmlands sending volcanic dust and rocks, making a return to normal agriculture impossible.
I was stuck in Europe most of this week, traveling by taxi from London to Spain to try to catch a flight amid the shower of volcanic dust spewing over the skies from Iceland.
A paper written by Benjamin Franklin in 1783 blamed the unusually cool summer of 1783 on volcanic dust coming from Iceland, where the eruption of Laki volcano had released enormous amounts of sulfur dioxide, resulting in the death of much of the island's livestock and a catastrophic famine which killed a quarter of the Icelandic population.
16 Natural Climate Changes Volcanic Activity Volcanic dust can remain suspended in the atmosphere for several years, reflecting incoming solar radiation and lower global temperatures.
· It will require a large - scale vertical eruption that injects volcanic dust into the stratosphere.
Forcing with volcanic dust produces the best simulation, whereas expressing the solar constant as a function of the envelope of the sunspot number gives very poor results.
Volcanic dust veils from sixth century tree - ring isotopes linked to reduced irradiance, primary production and human health.
«Volcanic Dust in the Atmosphere; with a Chronology and Assessment of Its Meteorological Significance.»
In the cool upper atmosphere, ice crystals would have formed around tiny nuclei of volcanic dust, before falling back to Earth.
Volcanic dust is another threat to atmospheric ozone.
«Volcanic Dust, Sunspots and Long - Term Climate Trends: Theories in Search of Verification.»
Volcanic dust can temporarily significantly bump the average down from the value it would have been if a case like 1998 when there was very little volcanic dust in the atmosphere?
From those ice cores she has found traces of sulfuric acid (defined) from volcanic plumes and extracted microscopic «shards» of volcanic dust, some more than 20,000 years old.
Robock found that the forcing which most closely mirrored the actual temperature observations was volcanic aerosols: «volcanic dust is the only external forcing that produces a model response significantly like the observations».
David Costa, mmm, it's volcanic dust that melts snow and glaciers, but only for a short time, as was demonstrated why Ortzi the ice man suddenly appeared after 5,000 years.
Two problems with that: warming is not occurring, and they can't determine the effect of the volcanic dust called aerosols.
«Here, it is sufficient to note that many of the 20CEN / A1B simulations neglect negative forcings arising from stratospheric ozone depletion, volcanic dust, and indirect aerosol effects on clouds... It is likely that omission of these negative forcings contributes to the positive bias in the model average TLT trends in Figure 6F.
smokejumper, it appears that was volcanic dust being blown westward from the Mt St Helens crater by the strong offshore easterly winds.
Volcanic dust was apparently causing global cooling in the 1970s.
There have been two naturally stimulated iron replenishment events in the Pacific Northwest due to volcanic dust from a nearby eruption.
«Climate inherently has a natural variability that is often attributed to possible variations in solar output, volcanic dust, etc..
Volcanic dust can remain suspended in the atmosphere for several years, reflecting incoming solar radiation and lower global temperatures.
1970 Hubert H. Lamb, «Volcanic Dust in the Atmosphere; with a Chronology and Assessment of Its Meteorological Significance.»
1913 W.J. Humphreys, «Volcanic Dust and Other Factors in the Production of Climatic Changes, and Their Possible Relation to Ice Ages.»