Sentences with phrase «aerosols on»

Zhanqing Li, lead author of a paper published in Nature Geoscience and University of Maryland atmospheric scientist, says, «Using a 10 - year dataset of atmospheric measurements, we have uncovered the long - term, net impact of aerosols on cloud height and thickness and the resulting changes in precipitation frequency and intensity.»

The impacts of aerosols on climate are significant, but also very uncertain.

See Reynolds, June 1992, «Impact of Mt. Pinatubo aerosols on satellite - derived sea surface temperatures».

Volcanoes are supposed to cool the temperature of the atmosphere through stratospheric aerosols on a global basis, not on a hemispheric one.

[Mikel] Volcanoes are supposed to cool the temperature of the atmosphere through stratospheric aerosols on a global basis, not on a hemispheric one.

The impact of aerosols on the atmosphere is widely acknowledged as one of the most significant and uncertain aspects of climate change projections.

While multiple studies have shown the Northern Hemisphere plays a stronger role than the Southern Hemisphere in transient climate change, this had not been included in calculations of the effect of atmospheric aerosols on climate sensitivity.

This section assesses (1) the impact of meteorological (climatic) factors like wind, temperature and precipitation on the natural aerosol burden and (2) possible effects of aerosols on climate parameters and biogeochemistry.

Menon, S., and A.D. Del Genio, 2007: Evaluating the impacts of carbonaceous aerosols on clouds and climate.

The direct and indirect effects of human - related aerosols on radiation, cloud, precipitation, and so on, might play an important role in generating the opposite signal in the weekend effect for different seasons.

2) The effects of clouds and aerosols on radiative heat transfer, which are many and varied and still being studied with many questions open.

Meehl, G. A., Arblaster, J. M., & Collins, W. D. Effects of black carbon aerosols on the Indian monsoon.

Many years ago, in the early days of RealClimate, before they removed half my comments, there was an interesting discussion about the role of (human) aerosols on the effect of CO2.

These agents include tropospheric and stratospheric ozone, all of the non-sulphate aerosols, the indirect effects of aerosols on cloud albedo and lifetime, the effects of land use and solar variability.

Other types of forcing that vary across the ensemble include solar variability, the indirect effects of aerosols on clouds and the effects of land use change on land surface albedo and other land surface properties (Table 10.1).

effects of aerosols on cloud properties (including cloud fraction, cloud microphysical parameters, and precipitation efficiency), which may modify the hydrological cycle without significant radiative impacts;

4) If the temperature of the whole globe is being dragged down by the aerosols direct effect but most of the globe (the majority of the oceans, the polar regions, the deserts,...) is basically unaffected by this DE, it makes sense to look at the instrumental record to see the coolness in the affected industrialized regions that would compensate for the lack of aerosols on the rest of the globe.

Considering the surface radiative forcing may enable quantification of the effects of aerosols on the surface

johnsaintsmith, Elaborating on Tamino's answer, the influence of anthropogenic aerosols on global temperatures was appreciated at the time.

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

The effects of aerosols on the climate are a problem for the L&S model, as the authors almost admit in the paper:

[~ 17 model years](Motivation: Variation in the climate response across models will be a function of (a) different climate sensitivity in the GCMs, (b) different impact of aerosols on climate (due to location with respect to clouds, water uptake, natural aerosols, mixing, etc), and (c) different 3D constituent fields from the composition models.

The models adjusted this correlation and tried to blame aerosols on this, but the main problem being adjusting for warming periods and recent non-warming period it just doesn't work at all.

Given the new found importance of aerosols on atmospheric warming the problem has become even more pressing.»

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 clouds.

However, given the sensitivity of the Arctic to external forcing and the intense interest in the effects of aerosols on its climate, it is important to examine and quantify the effects of individual groups of anthropogenic forcing agents.

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.

«Long - term impacts of aerosols on the vertical development of clouds and precipitation.»

The cosmic ray particles work let's say like a «glue» that puts together all the already formed condensation nuclei in the atmospheric air, creating therefore bigger condensation nuclei and finally the clouds, or the cosmic particles act as aerosols on their own, on which the water vapour condenses?

I added several comments e.g. about the (minor) impact of human aerosols on temperature, which implies that the effect of GHGs is also less than incorporated in climate models.

The effect of aerosols on cloud fraction that Gryspeerdt et al 2016 refer to is the cloud lifetime effect, also known as the Albrecht effect!

This could mean that the impact of aerosols on clouds (which would generate such a pattern) is much lower than thought.

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.

Basic physical science considerations, exploratory climate modeling, and the impacts of volcanic aerosols on climate all suggest that SWCE could partially compensate for some effects — particularly net global warming — of increased atmospheric CO2.

The long - term impacts of aerosols on the vertical development of clouds and precipitation.

Here is a quick summary of the issue: The effects of aerosols on clouds consist of three linked elements.

To evaluate the global effects of aerosols on the direct radiative balance, tropospheric chemistry, and cloud properties of the earth's atmosphere requires high - precision remote sensing that is sensitive to the aerosol optical thickness, size istribution, refractive index, and number density.

In addition, some models include the indirect effects of tropospheric sulphate aerosols on clouds (e.g., Tett et al., 2002), whereas others consider only the direct radiative effect (e.g., Meehl et al., 2004).

In models that include indirect effects, different treatments of the indirect effect are used, including changing the albedo of clouds according to an off - line calculation (e.g., Tett et al., 2002) and a fully interactive treatment of the effects of aerosols on clouds (e.g., Stott et al., 2006b).

«The Effect of Atmospheric Aerosols on Climate with Special Reference to Temperature near the Earth's Surface.»

I sometimes wonder what stops Bangladesh from seeding the stratosphere with these aerosols on its own, because the cost of doing so is trivial.

Better understanding of the effect of aerosols on Earth's climate in the past can help climate scientist make better predictions of climate change trends in the future, the researchers said.

Here are a few of the problems that need to be worked out: There's the issue of the effect of the aerosols on stratospheric chemistry (think how unanticipated the chemistry of the Ozone Hole was), and the question of just where the aerosols would go once injected.

These forcings are spatially heterogeneous and include the effect of aerosols on clouds and associated precipitation [e.g., Rosenfeld et al., 2008], the influence of aerosol deposition (e.g., black carbon (soot)[Flanner et al. 2007] and reactive nitrogen [Galloway et al., 2004]-RRB-, and the role of changes in land use / land cover [e.g., Takata et al., 2009].

A follow - up question related to where we might lose contact between historical and future is the disproportionate role of aerosols on the asymmetries in climate forcing.

Similarly, the influence of aerosols on precipitation processes is another example of a non-radiative climate forcing (see pages 6, and 42 - 44, for example, in the NRC report).

Can you direct us to a quantitative discussion of the short - term efffects of tephra aerosols on surface reaction mediated polar O3 equilibri, and the magnitude of the resulting shift in the surface solar flux at high latitudes?

To make such statements wouldn't we have to know the 3 - D dust field in the LGM and the impact of those aerosols on clouds (and planetary albedo)?

Re: Step # 2 and the effect of aerosols on low cloud.

I'd like to try CO2 + aerosols on temperature as a time series multiple regression.