Sentences with phrase «aerosol impact»

The maximum temperature change is about (0.19 +.10) 0.3 C. Still not close to the actual of 0.5 C. Thats assuming the aerosol impact is zero, but it's not.

The National Science Foundation's Center for Chemical Innovation supports the Center for Aerosol Impacts on Climate and the Environment (CHE 1038028).

Moving the chemical complexity of the ocean to the laboratory represented a major advance that will enable many new studies to be performed,» said Kimberly Prather, Distinguished Chair in Atmospheric Chemistry at the University of California, San Diego and director of the Center for Aerosol Impacts on Climate and the Environment, who led the team of more than 30 scientists involved in this project.

Microphysical effects determine macrophysical response for aerosol impacts on deep convective clouds, Proc Natl Acad Sci U S A, Early Edition online the week of November 11 - 15, 2013, DOI: 10.1073 / pnas.1316830110.

How do environmental kinematics, thermodynamics, and aerosols impact deep convective initiation, upscale growth, and mesoscale organization?

New research reveals insights into how black carbon aerosols impact cloud formation RENO — It is widely known that black carbon, or soot, aerosol particles emitted... Read more

Koch, D., S. Menon, A. Del Genio, R. Ruedy, I. Aleinov, and G.A. Schmidt, 2009: Distinguishing aerosol impacts on climate over the past century.

One is that the IPCC forcing central estimate is 40 % larger than that from CO2 alone since 1950 (due to other GHGs and possibly reduced aerosol impacts relative to previous reports), so if you are going to use CO2 alone, you should really add this other 40 % to match what has happened since 1950 and that is what they did.

Kimberly Prather and colleagues from the Center for Aerosol Impacts on Climate and the Environment (CAICE) carried out the study, in an effort to understand the earlier inconsistent findings.

«Aerosol impacts on drizzle properties in warm clouds from ARM Mobile Facility maritime and continental deployments.»

Prior to Shindell's work, such calculations had assumed aerosol impacts were uniform around the globe.

Aerosol impacts remain a source of major uncertainty in climate prediction in the Intergovernmental Panel on Climate Change (IPCC) 4th Assessment Report (2007).5 Recent and ongoing missions and instruments providing aerosol information include TOMS (1979 --RRB-, AVHRR (1979 --RRB-, MODIS (1999 --RRB-, MISR (1999 --RRB-, POLDER (2002 --RRB-, (A) ATSR (1991 --RRB-, PARASOL (2006 --RRB-, SCIAMACHY (2003 --RRB-, CALIPSO (2006 --RRB-, GLAS (2003 --RRB-, OMI (2004 --RRB-, and AIRS (2002 --RRB-.

The forcing aspect of the indirect effect at the top of the atmosphere is discussed in Chapter 2, while the processes that involve feedbacks or interactions, like the «cloud lifetime effect» [6], the «semi-direct effect» and aerosol impacts on the large - scale circulation, convection, the biosphere through nutrient supply and the carbon cycle, are discussed here.

Russell Dickerson, another atmospheric scientist at the University of Maryland, adds, «We have known for a long time that aerosols impact both the heating and phase changes [such as condensing and freezing of clouds, and that they can either inhibit or intensify clouds and precipitation.

Aerosol impacts on the magnitude of the temperature response, on clouds and on precipitation remain uncertain.

Not exact matches

She decided to study the role that organic particles play in cloud droplet formation, because a large proportion of marine aerosols — which have a significant climate impact — are organics.

Short - term exposure studies of e-cigarette use show a negative impact on lung function and bystanders absorb nicotine from passive exposure to e-cigarette aerosol, the authors report.

«Tiny particles have outsize impact on storm clouds, precipitation: Amazon rainforest provides a unique natural lab to study effects of aerosols.»

«We've shown that under clean and humid conditions, like those that exist over the ocean and some land in the tropics, tiny aerosols have a big impact on weather and climate and can intensify storms a great deal,» said Fan, an expert on the effects of pollution on storms and weather.

«This is the first time I've seen such a huge impact» from these minute aerosols.

Researchers sought to learn more about the impact of a process in which volcanoes give off aerosol particles that reflect sunlight, cooling the atmosphere and leading to reduced rainfall.

Unfortunately, current simulation models, which combine global climate models with aerosol transport models, consistently underestimate the amount of these aerosols in the Arctic compared to actual measurements during the spring and winter seasons, making it difficult to accurately assess the impact of these substances on the climate.

Computer models suggest that deploying aerosols can have «an appreciable impact on tropical cyclone intensity,» writes William Cotton, an atmospheric scientist at Colorado State University.

These particles pose health risks to populations, especially to the medically vulnerable, By infusing CATS data directly into aerosol models, data from CATS can make a difference in tracking and responding to impacts of similar events in the future.

«There is a link between the chemistry that goes on in this type of air motion and the subsequent effects on the trace gases and aerosols in the atmosphere that ultimately impact climate.»

They also found that streams of electrons and protons known as the solar wind, affecting Earth's global electric field, lead to changes in aerosol formation, which ultimately impact rainfall.

They conducted nine separate analyses, which spanned 2003 to 2014 and covered all of China, to compare the impact of aerosols compared to clouds on solar power generation with and without technology that tracks the sun as it moves across the sky.

ARO scientists monitor a range of atmospheric phenomena, from the influence of gases and aerosols on Earth's climate to the impact of pollutants in the atmosphere.

In the tug of war, aerosols don't necessarily counter the impacts of climate change on sea ice (or the planet as a whole for that matter).

«Aerosols have quite a substantial impact on Arctic climate.»

«It is therefore reasonable to expect that precipitation extremes will continue to intensify,» although how much is still a mystery, largely thanks to an unclear understanding of the atmospheric impact of how tiny flecks of pollution in the atmosphere — known as aerosols to scientists and comprising materials ranging from soot to sulfur dioxide.

Whether these reactions produce condensing vapours that can condense onto the smallest particles or even molecules can have strong impacts on aerosol formation.

In a separate study published Wednesday, researchers at the RIKEN Advanced Institute for Computational Science in Japan, said aerosols in the Arctic have a «profound» impact on the global climate system.

And while researchers are still striving to fully understand the health and environmental impact of increased levels of secondary organic aerosols in the atmosphere, studies have linked exposure to outdoor aerosols generally to morbidity and mortality outcomes.

While the next step in this line of research would be to examine the health impacts of indoor SOA, a few ways to reduce indoor aerosols would be to use unscented cleaners and open windows while cleaning.

Using climate models and data collected about aerosols and meteorology over the past 30 years, the researchers found that air pollution over Asia — much of it coming from China — is impacting global air circulations.

«Huge amounts of aerosols from Asia go as high as six miles up in the atmosphere and these have an unmistakable impact on cloud formations and weather.»

This mission is fulfilled by operating atmospheric observatories around the world that collect massive amounts of atmospheric measurements to provide data products that help scientists study the effects and interactions of clouds and aerosols and their impact on the earth's energy balance.

Scientists are involved in the evaluation of global - scale climate models, regional studies of the coupled atmosphere / ocean / ice systems, regional severe weather detection and prediction, measuring the local and global impact of the aerosols and pollutants, detecting lightning from space and the general development of remotely - sensed data bases.

The ARM Facility has provided the world's atmospheric scientists with continuous observations of cloud and aerosol properties and their impacts on the Earth's energy balance for more than 20 years.

Zhang adds that «we need to do some future research on exactly how these aerosols are transported globally and impact climate.

There are multiple anthropogenic forcings that have quite different impacts (e.g. anthropogenic greenhouse gas increases, aerosols, land - use changes and, yes, stratospheric ozone depletion).

So to adjust from 1750 - 2000 to 1850 - 2000 forcings, one must remove 0.215 W / m ² and also remove the -0.164 W / m ² aerosol forcing, multiplying the latter by it's impact relative to that of well - mixed greenhouse gases (~ 1.5) that gives about -0.25 W / m ².

Hienola, A., Partanen, A. - I., Pietikäinen, J. - P., O'Donnel, D., Korhonen, H., Matthews, D., and Laaksonen, A.: The impact of aerosol emissions on the 1.5 °C pathways, Environ.

The total forcing from the trace greenhouse gases mentioned in Step 3, is currently about 2.5 W / m2, and the net forcing (including cooling impacts of aerosols and natural changes) is 1.6 ± 1.0 W / m2 since the pre-industrial.

The impacts of 135 geoengineering scenarios will be examined, corresponding with forcings equivalent and opposite to the forcings associated with long - lived greenhouse gases, tropospheric sulfur aerosols and tropospheric ozone.

Most complete dataset ever collected helps scientists understand aerosols» impacts on clouds

Much of this uncertainty is due to the complexity of aerosols and their interactions with and impacts on cloud processes and properties, as well as the wide range of scales on which these interactions occur.

Because small - scale climate features, such as clouds and atmospheric aerosol particles, have a large impact on global climate, it's important to improve the methods used to represent those climate features in the models.

He is particularly interested in the role of aerosols and clouds in the atmosphere, and has worked on the processes that describe these components of the atmosphere, the computational details that are needed to describe them in computer models, and on their impact on climate.