Sentences with phrase «growth of aerosols»

Subsequently we will investigate the effects of these vapours on the nucleation and growth of aerosols.

The recent Norwegian press article you mention is surely in some way part of Svensmark's publicity for his wonderful new paper published this week and entitled «Increased ionization supports growth of aerosols into cloud condensation nuclei».

Subsequently we will investigate the effects of these vapours on the nucleation and growth of aerosols.

The CLOUD experiment consists of a large instrumented chamber in which the atmosphere can be precisely simulated, and the formation and growth of aerosol particles and the clouds they seed can be studied under precisely controled atmospheric conditions.

[Response: In the 1940 - 1975 time, the growth of greenhouse - gas forcing was negated by the growth of aerosol cooling — hence temperature was reasonably constant.

Not exact matches

To achieve the results a theoretical description of the interactions between ions and aerosols was formulated along with an expression for the growth rate of the aerosols.

Advanced measurements of aerosol formation and growth improve our understanding of the climate

Session Description: Recent laboratory and field studies provide new insights into the formation, growth, phase, viscosity, and volatility of secondary organic aerosols (SOA).

It requires models to have a full model of aerosol creation, growth, accretion and cloud nucleation.

, on the observations of low clouds and high clouds, or on the role of ultra-small aerosols for cloud drop growth?

The war period and rapid economic growth that followed resulted in very high levels of heat blocking aerosols in the atmosphere.

The leveling off between the 1940s and 1970s may be explained by natural variability and possibly by cooling effects of aerosols generated by the rapid economic growth after World War II.

However, because of its acidity, H2SO4 (and potentially MSA) can enhance the formation and growth of secondary organic aerosol (SOA) from organic compounds (5, 44, 45), including those produced by homogeneous nucleation of low - volatility species (46).

Stepping back from there, Hansen looks at 1940 and above: «The approximate stand - still of global temperature during 1940 - 1975 is generally attributed to an approximate balance of aerosol cooling and greenhouse gas warming during a period of rapid growth of fossil fuel use with little control on particulate air pollution, but quantitative interpretation has been impossible» That's the excuse and it is laughable.

The approximate stand - still of global temperature during 1940 - 1975 is generally attributed to an approximate balance of aerosol cooling and greenhouse gas warming during a period of rapid growth of fossil fuel use with little control on particulate air pollution, but quantitative interpretation has been impossible because of the absence of adequate aerosol measurements.

Svensmark et al., 2017 https://www.nature.com/articles/s41467-017-02082-2 «In conclusion, a mechanism by which ions condense their mass onto small aerosols and thereby increase the growth rate of the aerosols, has been formulated theoretically and shown to be in good agreement with extensive experiments.

The press release (from the Technical University of Denmark) states that about 5 % of the growth rate of new aerosol can be due to ions, which is the main result of the article.

The suggested hypothesis, is that in regions devoid of dust (e.g., over the large ocean basins), the formation of cloud condensation nuclei takes place from the growth of small aerosol clusters, and that the formation of the latter is governed by the availability of charge, such that charged aerosol clusters are more stable and can grow while neutral clusters can more easily break apart.

They concluded that with a bit of help from changes in solar output and natural climatic cycles such as the El Nino Southern Oscillation (ENSO), the growth in the volume of aerosols being pumped up power station chimneys was probably enough to block the warming effect of rising greenhouse gas emissions over the period 1998 - 2008.

Differences in growth rates have been attributed to differences in spatial variations of the initial aerosol sizes, in solubilities, and in magnitudes of supersaturation.

``... aerosols still pose key uncertainties in the understanding of Earth's radiative balance -LCB-...] major gaps exist in the understanding of the physicochemical pathways that lead to aerosol growth...»

Vladimir Semenov, a climate scientist at the Institute of Atmospheric Physics and the Institute of Geography in Moscow, who was not involved in the study, attributes the period of ice growth mostly to natural variability, although he said aerosols probably also play some role.

Advanced measurements of aerosol formation and growth improve our understanding of the climate

The approximate stand - still of global temperature during 1940 - 1975 is generally attributed to an approximate balance of aerosol cooling and greenhouse gas warming during a period of rapid growth of fossil fuel use with little control on particulate air pollution, but satisfactory quantitative interpretation has been impossible because of the absence of adequate aerosol measurements.

«Seven years of aerosol scattering hygroscopic growth measurements from SGP: Factors influencing water uptake.»

But the only difference between A, B, and C were not the model assumptions of climate sensitivity or any other variable — they only differed in the amount of Co2 growth and the number of volcano eruptions (which have a cooling effect via aerosols).

The approximate stand - still of global temperature during 1940 - 1975 is generally attributed to an approximate balance of aerosol cooling and greenhouse gas warming during a period of rapid growth of fossil fuel use with little control on particulate air pollution -LSB-...]»

Chamber research is focused on understanding the lifecycle of organic aerosols, including their formation, growth, aging (oxidation), re-volatilization, and effect on cloud formation.

While water may not be significant in the formation of the aerosols it can play a big role in the growth and evolution of particles.

Looking at the last decade, it is clear that the observed rate of change of upper ocean heat content is a little slower than previously (and below linear extrapolations of the pre-2003 model output), and it remains unclear to what extent that is related to a reduction in net radiative forcing growth (due to the solar cycle, or perhaps larger than expected aerosol forcing growth), or internal variability, model errors, or data processing — arguments have been made for all four, singly and together.