Sentences with phrase «aerosol particles affect»

Aerosol particles affect the Earth's radiative balance by directly scattering and absorbing solar radiation and, indirectly, through their activation into cloud droplets.

While the study provides clear evidence that aerosol particles affect the development and intensity of storms, Thornton says it can not be directly generalised to the air above land because there are other factors that need to be taken into account.

Not exact matches

Ozone, methane and aerosols (tiny pollutant particles) remain in the atmosphere for a shorter time than CO2, but can affect both the climate and air quality.

Dust devils might affect Mars's atmosphere by whipping particles to high altitudes, where the fine aerosols help control the planet's dry climate.

Their stickiness makes it hard to get them through an inlet into a measuring device, but these compounds may play a significant role in the formation and alteration of aerosols, tiny airborne particles that can contribute to smog or to the nucleation of raindrops or ice crystals, affecting the Earth's climate.

Soot particles, also known as black carbon aerosols, affect climate by absorbing sunlight, which warms the surrounding air and limits the amount of solar radiation that reaches the ground.

Studying clouds and aerosols won't just help scientists study the climate, it's also a chance to investigate air quality and how atmospheric particles affect daily life.

The question is: Does the current load of aerosols in the atmosphere already exceed that limit, in which case adding extra particles should not greatly affect cloud formation; or do they continue to be a limiting factor as pollution rises, so that added aerosols would continue to influence the clouds?

Reactions in and on sea - salt aerosol particles may have a strong influence on oxidation processes in the marine boundary layer through the production of halogen radicals, and reactions on mineral aerosols may significantly affect the cycles of nitrogen, sulfur, and atmospheric oxidants.

The recently published research results provide further evidence that forests can affect the climate by producing low - volatility vapours that are able to condense and grow aerosol particles.

Aerosol pollution also affects the formation of clouds, which are seeded with dust particles in the atmosphere.

The study, published Wednesday in the journal Nature, showed that the production of tar sands and other heavy oil — thick, highly viscous crude oil that is difficult to produce — are a major source of aerosols, a component of fine particle air pollution, which can affect regional weather patterns and increase the risk of lung and heart disease.

The results show for the first time for a number of natural compounds, which together account for around 70 per cent of the biological hydrocarbon emissions, how much each compound produces low - volatility products and how they can possibly affect the climate via producing aerosol particles.

Why It Matters: Aerosols, tiny airborne particles of dust and pollution suspended in the atmosphere, affect the atmosphere and the surface of Earth by scattering and absorbing light.

Additionally, stimulated bacterial degradation might heavily affect the organic composition of nascent sea - spray particles, upon which relies the ability of marine aerosols to interact with the climate system.

Results: Ubiquitous carbon - rich aerosol particles created by emissions from cars, trees, and other sources alter our climate and affect air quality.

nevertheless, both states can coexist for a wide range of environmental conditions.5, 7 Aerosols, liquid or solid particles suspended in the atmosphere, serve as Cloud Condensation Nuclei (CCN) and therefore affect the concentration of activated cloud droplets.8 Changes in droplet concentration affect key cloud properties such as the time it takes for the onset of significant collision and coalescence between droplets, a process critical for rain formation.»

Aerosols, liquid or solid particles suspended in the atmosphere, serve as Cloud Condensation Nuclei (CCN) and therefore affect the concentration of activated cloud droplets.8 Changes in droplet concentration affect key cloud properties such as the time it takes for the onset of significant collision and coalescence between droplets, a process critical for rain formation.»

«The results also show that ionisation of the atmosphere by cosmic rays accounts for nearly one - third of all particles formed, although small changes in cosmic rays over the solar cycle do not affect aerosols enough to influence today's polluted climate significantly.»

These NCA emissions directly affect particle concentrations and human exposure to nanosized aerosol in urban areas, and potentially may act as nanosized condensation nuclei for the condensation of atmospheric low - volatile organic compounds.

And how do aerosols (fine particles) affect the formation of clouds?

Unger's analysis is one of the first of its kind to incorporate the multiple effects that aerosol particles can have on clouds, which affect the climate indirectly.

The indirect effect is when aerosol particles act as a cloud condensation nucleus, affecting the formation and lifetime of clouds.

Warming from decade to decade can also be affected by human factors such as variations in the emissions, from coal - fired power plants and other pollution sources, of greenhouse gases and of aerosols (airborne particles that can have both warming and cooling effects).

The mass of a freshly nucleated aerosol particle is more than 100,000 times smaller than that of an «aged» aerosol of a size optimal to affect climate.

Topics that I work on or plan to work in the future include studies of: + missing aerosol species and sources, such as the primary oceanic aerosols and their importance on the remote marine atmosphere, the in - cloud and aerosol water aqueous formation of organic aerosols that can lead to brown carbon formation, the primary terrestrial biological particles, and the organic nitrogen + missing aerosol parameterizations, such as the effect of aerosol mixing on cloud condensation nuclei and aerosol absorption, the semi-volatility of primary organic aerosols, the importance of in - canopy processes on natural terrestrial aerosol and aerosol precursor sources, and the mineral dust iron solubility and bioavailability + the change of aerosol burden and its spatiotemporal distribution, especially with regard to its role and importance on gas - phase chemistry via photolysis rates changes and heterogeneous reactions in the atmosphere, as well as their effect on key gas - phase species like ozone + the physical and optical properties of aerosols, which affect aerosol transport, lifetime, and light scattering and absorption, with the latter being very sensitive to the vertical distribution of absorbing aerosols + aerosol - cloud interactions, which include cloud activation, the aerosol indirect effect and the impact of clouds on aerosol removal + changes on climate and feedbacks related with all these topics In order to understand the climate system as a whole, improve the aerosol representation in the GISS ModelE2 and contribute to future IPCC climate change assessments and CMIP activities, I am also interested in understanding the importance of natural and anthropogenic aerosol changes in the atmosphere on the terrestrial biosphere, the ocean and climate.