Sentences with phrase «atmospheric aerosol formation»

«galactic cosmic rays appear to play a minor role for atmospheric aerosol formation events, and so for the connected aerosol - climate effects as well.»

Feulner's work is a reanalysis of Weber (2010), which strongly suggested that cosmic rays cause a large part of atmospheric aerosol formation.

Here, we report unique observations on atmospheric aerosol formation based on measurements at the SMEAR II station, Finland, over a solar cycle (years 1996 — 2008) that shed new light on these presumed relationships.

Our main conclusion is that galactic cosmic rays appear to play a minor role for atmospheric aerosol formation events, and so for the connected aerosol - climate effects as well.

Direct observational evidence linking atmospheric aerosol formation and cloud droplet activation.

In the journal «Angewandte Chemie,» Jokinen and co-workers report that auto - oxidation, which can, for example spoil plastics or food, also plays an important role in the atmospheric aerosol formation.

Not exact matches

The team started by looking at the formation of the very small particles — a process called aerosol nucleation — by mimicking atmospheric conditions inside an ultraclean steel «cloud chamber», which Kirkby says is the cleanest ever created.

Despite its smaller ash cloud, El Chichn emitted more than 40 times the volume of sulfur - rich gases produced by Mt. St. Helens, which revealed that the formation of atmospheric sulfur aerosols has a more substantial effect on global temperatures than simply the volume of ash produced during an eruption.

Albedo modification might also work by using aerosols to seed cloud formation in a lower atmospheric layer called the troposphere.

It drives the formation of much of the atmospheric organic aerosol present in our environment.

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.

Solar activity impacts on climate are a fascinating topic, and encompass direct radiative processes, indirect effects via atmospheric chemistry and (potentially) aerosol formation effects.

Later, the enhancement of atmospheric aerosol particle formation by ions generated from cosmic rays was proposed as a physical mechanism explaining this correlation.

A short while ago, Eli posted about Finnish research on the formation of small atmospheric aerosols.

Joe Ceonnia: ``... it seems to me as if this program is all over the globe» Joe, by observing the astoundingly unnatural patterns of atmospheric aerosols on cloud formations around the planet — via NASA Worldview (online)-- one can visibly observe the effects of geoengineering around the world.

They found that changes in atmospheric ionization during the 11 - year solar cycle, and the resulting variations in aerosol formation, produced a globally asymmetric radiative forcing with a net cloud albedo effect of − 0.05 W m − 2.

These clouds then glaciate in higher levels, which could result in either more or less vigorous precipitation formation depending on the background aerosol levels and atmospheric stability (Khain et al., 2004).

It has been hypothesized that galactic cosmic rays (GCR) create atmospheric ions which facilitates aerosol nucleation and new particle formation with a further impact on the cloud formation (Kazil et al., 2012; Pierce and Adams, 2009).

In the article «Global atmospheric particle formation from CERN CLOUD measurements,» sciencemag.org, 49 authors concluded «Atmospheric aerosol nucleation has been studied for over 20 years, but the difficulty of performing laboratory nucleation - rate measurements close to atmospheric conditions means that global model simulations have not been directly based on experimental data.....

Recently it was suggested that the formation of new atmospheric aerosol particles is connected with the existence of thermodynamically stable 1 - to 2 - nm clusters, formed in the atmosphere by some nucleation mechanism.

Heterogeneous ice nucleation on atmospheric aerosols: a review of results from laboratory experiments / C. Hoose & O. Mohler Institute for Meteorology and Climate Research — Atmospheric Aerosol Research, Karlsruhe Institute of Technology, Karlsruhe, Germany / Published: 29 October 2012 Abstract: A small subset of the atmospheric aerosol population has the ability to induce ice formation at conditions under which ice would not form without them (heteroge - neous ice nucleAerosol Research, Karlsruhe Institute of Technology, Karlsruhe, Germany / Published: 29 October 2012 Abstract: A small subset of the atmospheric aerosol population has the ability to induce ice formation at conditions under which ice would not form without them (heteroge - neous ice nucleaerosol population has the ability to induce ice formation at conditions under which ice would not form without them (heteroge - neous ice nucleation).

Secondary aerosol formation from atmospheric reactions of aliphatic amines.

Studying the atmospheric aerosol particles, which impact cloud formation and particles, above a pristine forests, researchers discovered that when left alone the Amazon acts as its own «bioreactor»: clouds and precipitation are produced by the abundance of plant materials.