Sentences with phrase «volcanic dust in»

1970 Hubert H. Lamb, «Volcanic Dust in the Atmosphere; with a Chronology and Assessment of Its Meteorological Significance.»

H. H. Lamb was the first (1970) to attempt to determine the amount of volcanic dust in the atmosphere with his creation of the Dust Veil Index (DVI).

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?

Note the effects of volcanic dusts in 1982 - 85 (El Chichon) and 1991 - 94 (Pinatubo).

Not exact matches

In 2013, Corrado Cimarelli, a volcanologist at the LMU University of Munich, re-created volcanic lightning in his lab by pushing dust into a small glass tube at extremely high pressurIn 2013, Corrado Cimarelli, a volcanologist at the LMU University of Munich, re-created volcanic lightning in his lab by pushing dust into a small glass tube at extremely high pressurin his lab by pushing dust into a small glass tube at extremely high pressure.

Dust found in the ice gives a record of what was in the air thousands of years ago, whether from volcanic eruptions or human activity, and the isotopic composition of the hydrogen and oxygen molecules in the snow give a record of the temperature of the earth at the time.

Hallis previously used hydrogen isotope ratios in volcanic basalt rocks to conclude that Earth's water may in fact have been part of the very dust cloud from which the planet first condensed.

Ocean chemist Philip Boyd of the University of Otago in New Zealand says many other researchers have tried to link an infusion of iron from volcanic ash or even dust storms to plankton blooms, but this study is the first to «verify such a massive event.»

In the summer of 2008 Mount Kasatoshi in Alaska's Aleutian Islands blew, sending volcanic minerals, including iron dust, far to sea and prompting plankton blooms across the Gulf of AlaskIn the summer of 2008 Mount Kasatoshi in Alaska's Aleutian Islands blew, sending volcanic minerals, including iron dust, far to sea and prompting plankton blooms across the Gulf of Alaskin Alaska's Aleutian Islands blew, sending volcanic minerals, including iron dust, far to sea and prompting plankton blooms across the Gulf of Alaska.

«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.

In the cool upper atmosphere, ice crystals would have formed around tiny nuclei of volcanic dust, before falling back to Earth.

Schneider coauthored a 1971 article in the journal Science about atmospheric aerosols — floating particles of soil dust, volcanic ash, and human - made pollutants.

The sun's radiance has dropped slightly since the 1970s, and dust thrown up by recent volcanic eruptions, especially that of Mexico's El Chichon in 1982, should be keeping some sunlight from reaching the planet.

These datasets will be used to improve strategic and hazard - warning capabilities of events in near real - time, such as tracking plumes from dust storms, volcanic eruptions, and wildfires.

Or the 2003 observations were in error, and a few ppb of methane are lingering in the air from volcanic eruptions or the ultraviolet irradiation of organic - rich cosmic dust drifting into the atmosphere.

They are a dirty, messy mix of dust, volcanic ash and whatever else had the misfortune of getting trapped in the ice — plus a sprinkling of rocks and meteorites.

While measurements of aerosol absorption in ultraviolet do not differentiate between the smoke, dust and ash aerosols, only volcanic clouds contain significant abundances of SO2, so satellite measurements of SO2 are especially valuable for unambiguous identification of volcanic clouds.

At the time, vegetation there would have been frequently blanketed in volcanic dust from the Yellowstone hotspot and the Columbia River Basalts.

Forcing caused by changes in the Sun's brightness, by dust in the atmosphere, or by volcanic aerosols can also be translated into radiative forcing.

Specifically, this applies to ash, dust, or particles from a volcanic eruption that have caused a direct loss to covered property in a building.

The dust — usually powdered volcanic ash — must be provided deep enough so your chinchilla can roll around in it.

A god - sim, From Dust puts the fluxing fate of a archipelago in your omniscient hands, with the island's lone tribe of nomadic villagers at the peril of landslides, volcanic eruptions and flood.

While the suspended dust can temporarily block sunlight, the dominant effect in volcanic forcing is the sulphur, which combines with water to form sulphuric acid droplets.

Is there any good data on the fate on embedded contaminants in the ice (dust, volcanic ash, black carbon etc.)?

Furthermore, it would be interesting to know how eg stratospheric dust from say volcanic eruptions show up in the «earthshine».

As far as Hansen's Scenario A, B, C forecasts back in the 80s, he could have just dusted off the model in 2005, plugged in the greenhouse emissions, volcanic eruptions, atmospheric component concentrations, etc..

And one less dust as compared to volcanic eruption at Earth / Sun L - 1 to get more cooling on Earth in comparison.

Or said differently the amount dust per cubic of meter in space could insignificant less than the amount in Earth's atmosphere caused by a volcanic eruption.

The amount of dust in the atmosphere depends mainly on volcanic activity.

The presence of volcanic ash, dust, and aerosols in the air increase the amount of solar radiation that is reflected back into space.

Or volcanic eruption causes thin shell of dust to surround earth - you put same size of shell in L - 1, sunlight needs to pass thru it twice before reaching Earth, instead passing thru it once.

Ash from volcanic eruptions becomes trapped in ice sheets along with snow and dust.

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.

«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.

In 1974 when the Club of Rome formulated it, the consensus was that global cooling (due to dust and pollution from natural volcanic eruptions and from industry) was screening out sunlight, and we were in for runaway glaciation and a new ice agIn 1974 when the Club of Rome formulated it, the consensus was that global cooling (due to dust and pollution from natural volcanic eruptions and from industry) was screening out sunlight, and we were in for runaway glaciation and a new ice agin for runaway glaciation and a new ice age.

The cooling of the stratosphere (lower strato) following each of the volcanic dusts episodes may be related to the automatic cooling of the lower stratosphere when the temperature of the surface increases: this obvious mechanical compensation is described and explained in the old V. A. Belinskii Dynamic Meteorology Ogiz Moscow 1948, The Israël program for scientific translations 1961, 592 pages.

Hubert Lamb, founder of the CRU, identified a major part of the aerosol problem in 1970 when he created the Dust Veil Index (DVI) designed to quantify the impact of volcanic dust on the atmospheric energy balaDust Veil Index (DVI) designed to quantify the impact of volcanic dust on the atmospheric energy baladust on the atmospheric energy balance.

Turner's work, in particular, which often depicts brightly colored sunsets and emphasized natural light, can be used to roughly estimate aerosol optical depth — that is, the amount of particles like dust, volcanic ash, smoke and sea salts in the atmosphere — at the time the painting was made.

-- Volcanoes and vents emit less than 1 % of human emissions (even the Pinatubo eruption caused a dip in the CO2 increase, as the cooling by the volcanic dust increased the absorption of the oceans beyond the extra emissions.

«Climate inherently has a natural variability that is often attributed to possible variations in solar output, volcanic dust, etc..

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.

25 21.3 Climate Changes Natural Processes That Change Climates Volcanic Eruptions • The presence of volcanic aerosols (ash, dust, and sulfur - based aerosols) in the air increases the amount of solar radiation that is reflected back intVolcanic Eruptions • The presence of volcanic aerosols (ash, dust, and sulfur - based aerosols) in the air increases the amount of solar radiation that is reflected back intvolcanic aerosols (ash, dust, and sulfur - based aerosols) in the air increases the amount of solar radiation that is reflected back into space.

27 Volcanic Eruption The presence of volcanic ash, dust and aerosols in the air increase the amount of solar radiation that is reflected back intVolcanic Eruption The presence of volcanic ash, dust and aerosols in the air increase the amount of solar radiation that is reflected back intvolcanic ash, dust and aerosols in the air increase the amount of solar radiation that is reflected back into space.

Volcanic dust can remain suspended in the atmosphere for several years, reflecting incoming solar radiation and lower global temperatures.

• The presence of volcanic aerosols (ash, dust, and sulfur - based aerosols) in the air increases the amount of solar radiation that is reflected back into space.

That may well include increased or decreased natural dust (for natural or unnatural reasons), and definately volcanic aerosols (note that this factor was increasingly negative in the 40's to 60's) along with man - made aerosols.

A recent article in Science by Evan et al. (2009) is one of the few attempts to quantify the contribution of both dust and volcanic aerosols to the observed warming within the tropical Atlantic.

Although the Siberian Traps was basalt flooding, other volcanic activity occurring throughout the world as the continents were pushing together probably put a lot of dust in the atmosphere, off and on.

Calculate the changes in the atmospheric transmissivity of radiant energy over the last 2,000 years derived from a variable ingress of stellar, meteoritic and cometary dust, terrestrial dust, terrestrial volcanic aerosols and industrial aerosols.