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.
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.
The formation, properties and
impact of secondary
organic aerosol: Current and emerging issues
It delves into the
impacts of
aerosols, which are tiny pollutants of mineral dust, soot and
organic matter emitted by sources such as power plants, factories and quarries.
Kim M. J., G. A. Novak, M. C. Zoerb, M. Yang, B. W. Blomquist, B. J. Huebert, C. D. Cappa and T. H. Bertram (April 2017): Air - Sea exchange of biogenic volatile
organic compounds and the
impact on
aerosol particle size distributions.
This information is synthesized to provide a continuous analysis of the flow from the emitted material to the atmosphere up to the point of the climate
impact of the produced
organic aerosol.
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.
Topics that I work on or plan to work in the future include studies of: + missing
aerosol species and sources, such as the primary oceanic
aerosols and their importance on the remote marine atmosphere, the in - cloud and
aerosol water aqueous formation of
organic aerosols that can lead to brown carbon formation, the primary terrestrial biological particles, and the
organic nitrogen + missing
aerosol parameterizations, such as the effect of
aerosol mixing on cloud condensation nuclei and
aerosol absorption, the semi-volatility of primary
organic aerosols, the importance of in - canopy processes on natural terrestrial
aerosol and
aerosol precursor sources, and the mineral dust iron solubility and bioavailability + the change of
aerosol burden and its spatiotemporal distribution, especially with regard to its role and importance on gas - phase chemistry via photolysis rates changes and heterogeneous reactions in the atmosphere, as well as their effect on key gas - phase species like ozone + the physical and optical properties of
aerosols, which affect
aerosol transport, lifetime, and light scattering and absorption, with the latter being very sensitive to the vertical distribution of absorbing
aerosols +
aerosol - cloud interactions, which include cloud activation, the
aerosol indirect effect and the
impact of clouds on
aerosol removal + changes on climate and feedbacks related with all these topics In order to understand the climate system as a whole, improve the
aerosol representation in the GISS ModelE2 and contribute to future IPCC climate change assessments and CMIP activities, I am also interested in understanding the importance of natural and anthropogenic
aerosol changes in the atmosphere on the terrestrial biosphere, the ocean and climate.