Sentences with phrase «of aerosol deposition»

The climate feedbacks involved with these changes, which are key in understanding the climate system as a whole, include: + the importance of aerosol absorption on climate + the impact of aerosol deposition which affects biology and, hence, emissions of aerosols and aerosol precursors via organic nitrogen, organic phosphorus and iron fertilization + the importance of land use and land use changes on natural and anthropogenic aerosol sources + the SOA sources and impact on climate, with special attention on the impact human activities have on natural SOA formation In order to quantitatively answer such questions I perform simulations of the past, present and future atmospheres, and make comparisons with measurements and remote sensing data, all of which help understand, evaluate and improve the model's parameterizations and performance, and our understanding of the Earth system.

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].

Not exact matches

Beyond reducing the volume of acidic particles in aerosols, cutting the sulfur emissions has also reduced the deposition of acids in lakes and waterways, noted Armistead «Ted» Russell, a Regent's Professor in Georgia Tech's School of Civil and Environmental Engineering and another of the paper's co-authors.

Aerosol delivery of curcumin reduced abeta deposition and improved cognitive performance in a transgenic mouse model of Alzheimer's disease.

I guess I am surprised that with better understanding of the importance of water vapor feedback, sulfate aerosols, black carbon aerosols, more rapid than expected declines in sea ice and attendant decreases in albedo, effects of the deposition of soot and dust on snow and ice decreasing albedo, and a recognition of the importance of GHGs that were probably not considered 30 years ago, that the sensitivity has changed so little over time.

One of the major parameters was the safety of these agents in the respiratory airways and lung parenchyma, since several of these agents are known to cause adverse effects.23 The main adverse effects observed were cough, transient fever and transient decrease in the respiratory functions after the aerosol administration.8, 19, 20 Moreover; it has been observed that excessive deposition of these agents in one site of the respiratory system can induce non-specific side effects in the form of pulmonary edema as observed with many other drugs.16 These side effects were milder when a premedication with bronchodilators and inhaled corticosteroids were administered.8, 19, 20 Until now no long term trial (> 9 months) has been performed since all patients included in previous studies had stage IV non-small cell lung cancer (NSCLC).

These layers are caused by seasonal changes in the source, transport, and deposition of aerosols.

I guess I am surprised that with better understanding of the importance of water vapor feedback, sulfate aerosols, black carbon aerosols, more rapid than expected declines in sea ice and attendant decreases in albedo, effects of the deposition of soot and dust on snow and ice decreasing albedo, and a recognition of the importance of GHGs that were probably not considered 30 years ago, that the sensitivity has changed so little over time.

[Response: Aerosol forcings in the GISS model are derived from externally produced emission inventories, combined with online calculations of transport, deposition, settling etc..

Over even longer time scales (hundreds of years) there are a number of paleo - records that correlate with records of cosmogenic isotopes (particularly 10Be and 14C), however, these records are somewhat modulated by climate processes themselves (the carbon cycle in the case of 14C, aerosol deposition and transport processes for 10Be) and so don't offer an absolutely clean attribution.

Surface forcing alters evaporation and the hydrologic cycle, which feeds back upon the aerosol burden through the efficiency of wet deposition.

In the atmosphere, aerosols serve as initiation sites for the condensation or deposition of water vapour.

The Atmospheric Science Group at Manchester works in the areas of the microphysics of clouds and aerosol, heterogeneous atmospheric chemistry, radiative transfer, the deposition, conversion and transport of atmospheric pollution, thunderstorm electrification, atmospheric dynamics and remote sensing.

Additional output from the ACCMIP runs will include concentration / mass of radiatively active species, aerosol optical properties, and radiative forcings (clear and all sky) as well as important parameters that do not directly influence climate such as hydroxyl, chemical reaction rates, deposition rates, emission rates, surface pollutants and diagnostics of tracer transport.

A growing number of studies perform both the chemical production, transformation, and transportation of aerosols and the radiative forcing calculations (see Chapter 5) with the advantage of correlating predicted aerosol distributions precisely with fields determining aerosol production and deposition such as clouds (e.g., Penner et al., 1998b).

The loss processes for the number of aerosols (deposition and coagulation with bigger particles) are stronger when they're very small.