Sentences with phrase «study on aerosols»

There's an important new study on aerosols, another topic recently covered on RC: http://davidappell.com/archives/00000865.htm.

The meeting will mainly cover the following themes, but can include other topics related to understanding and modelling the atmosphere: ● Surface drag and momentum transport: orographic drag, convective momentum transport ● Processes relevant for polar prediction: stable boundary layers, mixed - phase clouds ● Shallow and deep convection: stochasticity, scale - awareness, organization, grey zone issues ● Clouds and circulation feedbacks: boundary - layer clouds, CFMIP, cirrus ● Microphysics and aerosol - cloud interactions: microphysical observations, parameterization, process studies on aerosol - cloud interactions ● Radiation: circulation coupling; interaction between radiation and clouds ● Land - atmosphere interactions: Role of land processes (snow, soil moisture, soil temperature, and vegetation) in sub-seasonal to seasonal (S2S) prediction ● Physics - dynamics coupling: numerical methods, scale - separation and grey - zone, thermodynamic consistency ● Next generation model development: the challenge of exascale, dynamical core developments, regional refinement, super-parametrization ● High Impact and Extreme Weather: role of convective scale models; ensembles; relevant challenges for model development

Not exact matches

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.»

This finding has implications for the role of sea spray aerosols in climate, especially on how they interact with solar radiation,» says Paul Zieger, assistant professor at ACES and co-author of the study.

But researchers from the University of Geneva (UNIGE), Switzerland, members of the PlanetSolar Deepwater expedition, have now succeeded in linking the composition of marine biological aerosols — and therefore their influence on the climate — to that of bodies of water under them within the Atlantic Ocean, thereby paving the way to an indirect study of these aerosols through water analysis.

The study also showed that the effect was much larger on a regional scale, counteracting possibly up to 30 % of warming in more rural, forested areas where anthropogenic emissions of aerosols were much lower in comparison to the natural aerosols.

The conclusions are based on observed gas and aerosol composition, humidity and temperature data collected at a site in rural Alabama as part of the Southern Oxidant and Aerosol Study aerosol composition, humidity and temperature data collected at a site in rural Alabama as part of the Southern Oxidant and Aerosol Study Aerosol Study (SOAS).

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.

Aerosols from the production of heavy oil is a growing climate and pollution concern because new tar sands developments are on the drawing board in Venezuela, Utah and elsewhere, the study says.

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.

The cooling effect of aerosols can partly offset global warming on a short - term basis, but many are made of organic material that comes from sources that scientists don't fully understand, said Joost de Gouw, a research physicist at NOAA's Earth System Research Laboratory in Boulder, Colo., who is unaffiliated with the studies.

Rosenfeld and his colleagues are now working on a project to do exactly that by studying aerosol concentrations over Houston, where the team also has access to a dedicated lightning - mapping array.

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.

That report relies on studies that include the large aerosol forcing uncertainty, so criticizing my paper for that would be inconsistent.

Therefore studies based on observed warming have underestimated climate sensitivity as they did not account for the greater response to aerosol forcing, and multiple lines of evidence are now consistent in showing that climate sensitivity is in fact very unlikely to be at the low end of the range in recent estimates.

This study has advanced scientists» capabilities to model and predict those complex aerosol - cloud interactions on the Earth's energy budget, for a balanced and energy - sustainable future.

The upper tail is particularly long in studies using diagnostics based on large - scale mean data because separation of the greenhouse gas response from that to aerosols or climate variability is more difficult with such diagnostics (Andronova and Schlesinger, 2001; Gregory et al., 2002a; Knutti et al., 2002, 2003).

Inverse estimates of aerosol forcing from detection and attribution studies and studies estimating equilibrium climate sensitivity (see Section 9.6 and Table 9.3 for details on studies).

In addition, model intercomparison studies do not quantify the range of uncertainty associated with a specific aerosol process, nor does this type of uncertainty analysis provide much information on which aerosol process needs improving the most.

From its base in Namibia, the Observations of Clouds above Aerosols and their Interactions (ORACLES) study will use airborne instruments this fall to probe the impact on climate and rainfall of the interaction between clouds over the southeastern Atlantic Ocean and smoke from vegetation burning in southern Africa.

Scenes allude to the band's gloomy inclinations, bass - driven melodies and innovative use of audio effects (one band member uses an aerosol spray can to form a beat), but the story of Joy Division is an afterthought in the movie, replaced instead by a much more routine study of depression and the effects of sudden success and touring on a marriage.

Therefore studies based on observed warming have underestimated climate sensitivity as they did not account for the greater response to aerosol forcing, and multiple lines of evidence are now consistent in showing that climate sensitivity is in fact very unlikely to be at the low end of the range in recent estimates.

CLOUD is designed to study the effects of cosmic rays on aerosols, cloud droplets and ice particles, under precisely controlled laboratory conditions.

The question to ask modelers is whether they have done sensitivity studies, and then examine the range of answers based on the high / low values of aerosols forcings that have empirical support based on in - field measurements.

So the whole basis for the study is flawed — its based on the affect of increasing aerosol concentrations that actually are not increasing.

The study focuses on one proposed type of SRM, known as a «stratospheric aerosol injection», which involves sending up substances to the stratosphere that are known to have a cooling effect on the climate.

paper refers to a new model which makes it possible to study the globally impacts of aerosols on warm clouds (T > 0 ° C) thanks to a much higher resolution than former approaches.

For rigor of technical analysis, the study focused the research agenda on one particular SWCE concept — stratospheric aerosol injection — and in doing so developed several conceptual frameworks and methods valuable for assessing any SWCE proposal.

Science published a study in 1971 by S. Ichtiaque Rasool and Stephen H. Shneider titled «Atmospheric Carbon Dioxide and Aerosols: Effects of Large Increases on Global Climate.»

Lamarque, D. Olivié, T. Richardson, D. Shindell, and T. Takemura, 2018: A PDRMIP multi-model study on the impacts of regional aerosol forcings on global and regional precipitation.

In our study, the biggest aerosol effect on climate came from the effect of aerosol - cloud indirect effect.

This would appear to be an error, as even the ISPM itself states: «Studies have concentrated on what are believed to be the most important forcings: greenhouse gases, direct solar effects, some aerosols and volcanism.»

Judith - Apart from the general anthro vs. natural disussion of sea ice, I'm always wondering: has anyone seriously considered / studied the possible anthropogenic contribution from NON-CO2 sources (black carbon soot / aerosol deposits on the ice surface, increasing the albedo, melting the ice faster in the sun)?

There have been many studies aiming to test this hypothesis since AR4, 50 which fall in two categories: i) studies that seek to establish a causal relationship between cosmic rays and 51 aerosols / clouds by looking at correlations between the two quantities on timescales of days to decades, and 52 ii) studies that test through observations or modelling one of the physical mechanisms that have been put 53 forward.

A major scientific study conducted at the University of Reading on the interactions between aerosols and clouds is much weaker than most climate models assume, meaning the planet could warm way less than predicted.

There have been many studies aiming to test this hypothesis since AR4, which fall in two categories: i) studies that seek to establish a causal relationship between cosmic rays and aerosols / clouds by looking at correlations between the two quantities on timescales of days to decades, and studies that test through observations or modeling one of the physical mechanisms that have been put forward.

However, further study in a multi-model context will be necessary to better constrain the efficacy associated with historical aerosol change,» the NASA researchers write on that matter.

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.

Surely after decades of satellite measurements, countless field experiments, and numerous finescale modeling studies that have repeatedly highlighted basic deficiencies in the ability of comprehensive climate models to represent processes contributing to atmospheric aerosol forcing, it is time to give up on the fantasy that somehow their output can be accepted at face value.»

However, this study focused on the warming effects of black carbon, and did not compare them to the cooling effects of atmospheric aerosols.

The study researches the effects of microbial control on sea spray aerosol, along with the blooms included within, in an isolated facility that simulates the atmosphere of the ocean with 3,400 gallons of seawater.

Aerosol collections on the NOAA Ron Brown for subsequent processing of INP activation temperature spectra and composition analyses, add a valuable measurement to the ACAPEX and related CalWater2 (NOAA) studies for use in parameterizing and modeling the impacts of marine boundary layer and other aerosols on climate and radiation via aerosol - indirect effects on mixed phase Aerosol collections on the NOAA Ron Brown for subsequent processing of INP activation temperature spectra and composition analyses, add a valuable measurement to the ACAPEX and related CalWater2 (NOAA) studies for use in parameterizing and modeling the impacts of marine boundary layer and other aerosols on climate and radiation via aerosol - indirect effects on mixed phase aerosol - indirect effects on mixed phase clouds.

The best estimate and uncertainty range of the total direct aerosol RF are based on a combination of modelling studies and observations.

On the other hand, the anthropogenic component and the aerosol forcing, which were neglected in our study, may induce additional predictable trends.

ARM's previous research (2009) on Graciosa Island revealed that it has the ideal mix of conditions to study how clouds, aerosols, and precipitation interact.

Inverse estimates of aerosol forcing do not have to rely much on GCMs, are for AF, and are in line with the SOD's satellite - observation derived central AF estimate of -0.73 W / m ^ 2 (discounting estimates from studies in the SOD's list that are, for reasons such as those I mentioned in my 2/2/13 5:59 am comment, obviously useless).

Find a study that shows a regional influence of industrial aerosols on temperature.

The new study by Herman et al. on change in the Lambert Equivalent Reflectivity (LER) of the Earth's cloud plus aerosol over the period 1979 - 2011 shows

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.