This Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) will support fundamental research on atmospheric particle nucleation and growth under conditions found in the free troposphere. The $356,844 award to Carnegie Mellon University will investigate the interactions between oxidized organic compounds and inorganic acids leading to new-particle formation in the cold upper troposphere, as well as the low-temperature growth of particles through the...
The National Science Foundation (NSF) awarded a $450,000 Project Grant under the Mathematical and Physical Sciences (CFDA 47.049) program to Professor James Smith of the University of California, Irvine (UCI). The 3-year grant, effective June 1, 2025, supports laboratory studies of aerosol nanocluster growth mechanisms involving interactions between organic compounds, inorganic acids, and bases. The research aims to identify the major species and processes that lead to atmospheric nanoparticle...
This $941,193 Project Grant award from the National Science Foundation's Geosciences Program (CFDA 47.050) supports research to further develop a theory on the invariance of cloud size distribution under varying climate conditions. The research aims to evaluate whether certain cloud properties, such as the relationship between cloud size and number, remain consistent despite changes in atmospheric climate and chemical composition. The work seeks to understand the underlying physical mechanisms...
This Project Grant award, provided by the National Science Foundation's Geosciences Program (CFDA 47.050), focuses on assessing the role of atmospheric new particle formation in influencing the pre-industrial climate. The $236,059 award to Carnegie Mellon University, effective August 1, 2025 through July 31, 2030, will develop a new parameterization of new particle formation that accounts for the role of temperature and atmospheric ions. This research aims to improve the understanding of...
This $389,417 National Science Foundation project grant supports atmospheric particle formation research at Augsburg University from December 2022 through November 2025 under the Geosciences program (CFDA 47.050). The university will conduct laboratory experiments to enhance understanding of new particle formation processes in the atmosphere, focusing on sulfuric acid/water and ammonia systems as well as oxidation products from organic compounds. Experiments using two flow reactors will...
The National Science Foundation Division of Atmospheric and Geoscience Sciences awarded a $358,461 Project Grant to Georgia Tech Research Corporation to strengthen understanding of atmospheric aerosols and their impact on cloud formation through collaborative research between Appalachian State University and Georgia Tech. Under the Geosciences (CFDA 47.050) federal grant program, the awardees will apply measurements, models, and machine learning to improve parameterization of aerosol water...
This three-year project grant from the National Science Foundation Division of Atmospheric and Geospace Sciences provides $195,299 to the University of North Carolina at Chapel Hill for research characterizing the cloud formation properties of secondary organic aerosol formed from aqueous multiphase chemical processes. The research will be conducted from October 2021 through September 2024 under the Geosciences program (CFDA 47.050), which supports basic research into the integrated Earth system...
This Project Grant award from the National Science Foundation's (NSF) Mathematical and Physical Sciences Federal Grant Program (CFDA 47.049) provides $400,000 to Professor Alison Bain at Oregon State University (OSU) to investigate the effects of complex organic mixtures on the surface tension of aerosol droplets and their role in cloud droplet activation. The research aims to improve understanding of how surfactants partition in complex aerosol mixtures, which could lead to better predictions...
This Project Grant award of $464,291 from the National Science Foundation's Geosciences Program (CFDA 47.050) supports research to understand the sources of spatial variability in low-level stratocumulus clouds and how this variability influences cloud and precipitation processes. The primary objectives are to identify microphysical drivers of spatial variability, such as condensation, stochastic collisions, turbulence-enhanced collision kernels, and giant aerosol particles, and assess their...
This Project Grant award from the National Science Foundation's (NSF) Geosciences Program (CFDA 47.050) provides $695,471.00 to the University of Vermont & State Agricultural College to conduct research on the impacts of relative humidity on organic new particle formation in the atmosphere. The primary goals of this 3-year project, which runs from June 15, 2025 to May 31, 2028, are to: 1) explore the sensitivity of new particle formation to relative humidity for representative atmospheric...