Sentences with phrase «for aerosol impacts»

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.

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.

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.

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

Not exact matches

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).

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 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.

Analyzing such systems, whether they are on the surface of a catalyst, a microbial community, or atmospheric aerosols, and understanding their impact requires tools that can accurately identify and quantify hundreds of molecules,» said Dr. Julia Laskin, a PNNL chemist, who has been advancing the frontiers of the Nanospray Desorption Electrospray Ionization Mass Spectrometry, nicknamed nano - DESI, for the last 3 years.

Similarly, we have not been able to tell how much of the aerosol is capable of interacting with liquid or ice clouds (which depends on the different aerosols» affinity for water), and that impacts our assessment of the aerosol indirect effect.

Aerosols are however much more clearly responsible for serious respiratory problems in big cities (London prior to 1950s, Beijing today), and their health impacts are well known.

Since the true impacts of longer term natural variability are not known and the one confidence estimates of aerosol and cloud forcings used to tune the models to that «range of comfort» are quite a bit more uncertain that previously considered, that it might just be time for a do over.

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

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.

As the Director of GISS and Principal Investigator for the GISS ModelE Earth System Model, I am interested in understanding past, present and future climate and the impacts of multiple drivers of climate change, including solar irradiance, atmospheric chemistry, aerosols, and greenhouse gases.

While there is a reduction in the impact of aerosols, at a global level, for some tropical regions, a shift towards higher concentrations is also reported.

The most important issue for high / low ECS (GHG vs. Aerosol forcing impacts on GMST) is the elephant in the room, not included in BC17.

As part of that calculation, researchers have relied on simplifying assumptions when accounting for the temperature impacts of climate drivers other than carbon dioxide, such as tiny particles in the atmosphere known as aerosols, for example.»

«Evidence for climate change in the satellite cloud record» «Cloud feedback mechanisms and their representation in global climate models» «A net decrease in the Earth's cloud, aerosol, and surface 340 nm reflectivity during the past 33 yr (1979 — 2011)» «New observational evidence for a positive cloud feedback that amplifies the Atlantic Multidecadal Oscillation» «Impact of dataset choice on calculations of the short - term cloud feedback»

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.

Lohmann et al. (2000) predicted a radiative impact for the combined effect (i.e., first and second effects) of -1.3 and -0.9 Wm - 2 for externally and internally mixed carbonaceous aerosols, respectively.

It has been suggested that a top - down allocation approach is more appropriate for boundaries where human activities exert a direct impact on the Earth (that is, climate change, ocean acidification, ozone depletion and chemical pollution), while a multiscale approach is more appropriate for boundaries that are spatially heterogeneous (that is biogeochemical flows, freshwater use, land - system change, biodiversity loss and aerosol loading).8 Even with a top - down approach and a single global boundary, however, allocation is fraught with difficult ethical issues.

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.

The net impact on temperature attributed to each different forcing, solar, ghg (co2, methane), volcanic, aerosol, albedo whatever are based on historical temp data and checked for accuracy against models yes?

«The cooling impact from increasing aerosols more than masked the warming impact from increasing greenhouse gases,» said John Fyfe, a senior scientist at Environment and Climate Change Canada and a co-author of the new study accepted for publication in Geophysical Research Letters.

In the WGII Report, where they are examining the impact of global warming as it relates to soot and other «pollutants» it is the opposite, with a definition of particulates but none for aerosols.

Mount Pinatubo in the Phillipines erupted the next year, providing a natural laboratory for studying aerosols» impact.

One reason for the disproportionate influence of the Northern Hemisphere, particularly as it pertains to the impact of aerosols, is that most man - made aerosols are released from the more industrialized regions north of the equator.

As stated earlier, I agree with the point that tropospheric aerosols from fossil fuels are incredibly bad for human health and other environmental impacts (black carbon soot, acid rain, radioactive emissions, mercury poisoning), putting us in a situation of damned if we do, damned if we don't.

I, on the other hand, am worried about the impact of a technology that has unknown consequences for the environment, and which in some regards is definitely known not to work — c.f the fact that it does nothing for ocean acidification, and also the implications of the mismatch in time scale between aerosols and CO2.

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.

Using available evidence, we describe the potential direct occupational and public health impacts of exposures to aerosols likely to be used for SRM, including environmental sulfates, black carbon, metallic aluminum, and aluminum oxide aerosols.