Sentences with phrase «volcanic sulfate aerosols»

Not exact matches

Since the 1990s, scientists have been discussing using aircraft to inject aerosols, such as sulfates, into the atmosphere as a form of geoengineering to mimic volcanic eruptions that sometimes cool the planet by casting shades of particulate matter.

A third key hypothesis involves acidic aerosols released at volcanic sites, such as acid fog, dispersed throughout the atmosphere, and interacting subsequently with the finer components of soil as a source of widespread hydrated iron - sulfate salts.

Like the particles emitted during volcanic eruptions, sulfate aerosols cool the Earth by blocking a portion of the sun's rays.

Volcanoes can — and do — influence the global climate over time periods of a few years but this is achieved through the injection of sulfate aerosols into the high reaches of the atmosphere during the very large volcanic eruptions that occur sporadically each century.

-LSB-...] following a major volcanic eruption (emitting sulfate aerosol in the stratosphere).

After a large volcanic eruption, the layer of sulfate aerosols in the stratosphere gets thicker, and we see, in the historic record, that the Earth cools down in response.

In fact, the major effect of significant volcanic eruptions is cooling due to the sulfate aerosols that they release (although in order to have a significant cooling effect, the eruption has to be large enough that it injects the aerosols into the stratosphere where they can stay around longer... and it apparently helps if the eruption is reasonably near to the equator).

This cooling was from the same root cause as volcanic cooling, namely aerosols (mostly sulfate aerosols) in the atmosphere.

Volcanoes can — and do — influence the global climate over time periods of a few years but this is achieved through the injection of sulfate aerosols into the high reaches of the atmosphere during the very large volcanic eruptions that occur sporadically each century.

10 Heat Storage: Mostly the Oceans 1955 - 1996; Levitus et al. 2001: Science World Ocean = 18.2 x10 22 Joules Atmosphere = 0.7 x10 22 Joules Land Ice = 0.8 x10 22 Joules observed Modeled Model includes forcing from Greenhouse Gases, Sulfate Aerosols Solar irradiance changes, and volcanic aAerosols Solar irradiance changes, and volcanic aerosolsaerosols.

That is contradicted by climate models providing a very decent match to the observed cooling following a major volcanic eruption (emitting sulfate aerosol in the stratosphere).

The Sulfate cooling mechanism is also evidenced whenever there is a high ejecta mass volcanic eruption, which causes a measurable cooling effect, for about 3 years after an eruption; until the sulfate particulate aerosols diminish in the atmosphere to the point that they become neglSulfate cooling mechanism is also evidenced whenever there is a high ejecta mass volcanic eruption, which causes a measurable cooling effect, for about 3 years after an eruption; until the sulfate particulate aerosols diminish in the atmosphere to the point that they become neglsulfate particulate aerosols diminish in the atmosphere to the point that they become negligible.

But to quantify the influences (or «forcings» in climate jargon) even further, they considered three anthropogenic forcings — well - mixed greenhouse gases, sulfate aerosols, and tropospheric and stratospheric ozone — as well as two natural forcings — changes in solar irradiance and volcanic aerosols — all of which are likely to influence tropopause height.»

Volcanic eruptions emit sulfate aerosols via volcanic plumes, which may stay in the stratosphere for months to years, reflecting sunlight back into space, cooling the Earth's lower atmosphere or troposphere over a longVolcanic eruptions emit sulfate aerosols via volcanic plumes, which may stay in the stratosphere for months to years, reflecting sunlight back into space, cooling the Earth's lower atmosphere or troposphere over a longvolcanic plumes, which may stay in the stratosphere for months to years, reflecting sunlight back into space, cooling the Earth's lower atmosphere or troposphere over a long time...