Project Grant 2404181
- This National Science Foundation project grant of $291,231 supports collaborative research on coastal cloud chemistry during the Eastern Pacific Cloud Aerosol Precipitation Experiment campaign. Funded under the Geosciences program (CFDA 47.050), the award will leverage recent instrumentation developments to augment the Department of Energy's campaign conducted in La Jolla, California from February 2023 to January 2024. Specifically, the University of California, Los Angeles will utilize...
- This three-year, $348,116 project grant from the National Science Foundation's Geosciences program (CFDA 47.050) supports the continued membership of three universities in the Cloud Consortium at CERN. The consortium studies the chemistry and physics that drive new particle formation and growth in Earth's atmosphere using a 26 cubic meter stainless steel chamber with precise temperature and humidity control. Over the grant period, the awardee Carnegie Mellon University and sub-awardees...
- This three-year, $457,778 project grant from the National Science Foundation's Division of Atmospheric and Geospace Sciences aims to advance understanding of new particle formation in the marine boundary layer and its impact on cloud condensation nuclei and cloud microphysics. Specifically, the awardee, Washington University in University City, Missouri, will analyze existing field measurements from various Atlantic and Pacific Ocean campaigns to identify conditions conducive to new particle...
- This National Science Foundation project grant of $372,870 supports research into aerosol-cloud-turbulence interactions through numerical simulation and experimental chamber studies. Awarded on September 1, 2022 under the Geosciences program (CFDA 47.050), the three-year award to the University of Notre Dame will use high-resolution numerical modeling and experiments at the PI Chamber facility to examine questions around aerosol hygroscopicity, supersaturation fluctuations, droplet settling...
- The Trustees of Columbia University in the City of New York (Columbia University) was awarded a three-year, $365,898 Project Grant from the National Science Foundation's Geosciences program (CFDA 47.050) to conduct collaborative research on sulfur oxide chemistry in aqueous aerosols. Specifically, the university will perform laboratory experiments and box model simulations to study sulfur compound formation within aerosols and characterize kinetics and chemical mechanisms for low- to...
- This Project Grant award of $499,590 from the National Science Foundation's (NSF) Mathematical and Physical Sciences program (CFDA 47.049) supports a computational study by Professor George Shields and 12 undergraduate students at Furman University to better understand the energetics of molecular clusters in the atmosphere that can form atmospheric aerosols and influence cloud formation. The research aims to optimize processes for calculating Gibbs free energy changes for the formation of...
- This three-year, $454,659 project grant from the National Science Foundation's Geosciences program (CFDA 47.050) supports the continued membership of three universities in the Cloud Consortium at CERN. The Consortium will study the chemistry and physics that drive new particle formation and growth in Earth's atmosphere using a 26 cubic meter stainless steel chamber. Over the grant period, research will focus on chemical mechanisms generating extremely low volatility organic compounds that can...
- This three-year $570,934 National Science Foundation project grant supports research at the University of California, Irvine to study the effects of phase state on secondary organic aerosol partitioning and its impacts on atmospheric processes at regional and global scales. Specifically, the university will implement methods in the GEOS-Chem model to predict glass transition temperatures and viscosity of secondary organic aerosol. Researchers will derive equilibration timescales of...
- This three-year, $473,907 Project Grant from the National Science Foundation Division of Ocean Sciences will support research into quantifying the exchange processes between the ocean surface boundary layer and interior at submesoscales. Submesoscale interactions between currents, waves, and turbulence can significantly impact biogeochemistry and climate through entrainment and subduction of tracers between layers. The awardee, Brown University, will conduct numerical simulations and develop new...
- This three-year Project Grant from the National Science Foundation's Division of Chemistry, totaling $413,144, supports collaborative research between Columbia University and Utah State University on surface-specific aerosol chemistry. The researchers will apply unique laboratory methods—surface-specific sum frequency generation and highly-sensitive hyperRaman scattering—together with gas-particle chemical kinetics studies, to characterize processes unique to aerosol surfaces. They will...
DETERMINING THE COAGULATION SINK RATE FOR SUB-10 NM ATMOSPHERIC PARTICLES -THE RESEARCH TEAM IN THIS PROPOSAL WILL COMBINE LABORATORY EXPERIMENTS AND THEORETICAL MODELING IN ORDER TO ADDRESS UNCERTAINTIES AND OVERSIMPLIFICATIONS IN OUR UNDERSTANDING OF COAGULATION SINK RATES OF CLOUD CONDENSATION NUCLEI AND THEIR IMPACTS ON AEROSOLS, THEIR ATMOSPHERIC SURVIVAL, AND AEROSOL SCAVENGING AND COAGULATION. AS COAGULATION SINK RATES CANNOT BE DIRECTLY MEASURED, THEY ARE CURRENTLY APPROXIMATED VIA THE ?HARD-SPHERE? MODEL, WHICH HAS KNOWN UNCERTAINTIES AND LIMITATIONS. THIS WORK AIMS TO FILL THIS KNOWLEDGE GAP. SUCCESS IN THIS PROJECT WILL POSITIVELY IMPACT MULTIPLE FIELDS OF SCIENTIFIC RESEARCH, INCLUDING FIELDS OUTSIDE OF THE ATMOSPHERIC SCIENCES. THE PROPOSED EDUCATIONAL AND OUTREACH PLANS ARE STRONG AS K-12, UNDERGRADUATE, AND GRADUATE STUDENTS WILL GAIN VALUABLE KNOWLEDGE AND EXPERIENCE DURING THIS PROJECT. SPECIFICALLY, THIS PROPOSED WORK WILL INVESTIGATE COAGULATION SINK EVENTS BY COMPARING COAGULATION RATES BETWEEN SUB-10 AND 50-100 NANOMETER CLOUD CONDENSATION NUCLEI. THERE ARE THREE PRIMARY OBJECTIVES IN THIS PROPOSED WORK. FIRST, AN INVESTIGATION OF VAN DER WALLS-ENHANCED COAGULATION SINK RATES OF NEWLY FORMED PARTICLES. SECOND, AN EXPLORATION OF IMAGE POTENTIAL-ENHANCED COAGULATION SINK RATES. FINALLY, AN EVALUATION OF THE IMPACT OF CHEMICAL COMPOSITION ON COAGULATION SINK RATES. RESEARCH TASKS IN THIS PROJECT INCLUDE: (1) THE FIRST EXPERIMENTAL VALIDATION OF COAGULATION RATE MODELS THAT INCORPORATE VAN DER WALLS POTENTIALS FOR SUB-10 NANOMETER AND 50-100 NANOMETER CLOUD CONDENSATION NUCLEI; (2) AN INNOVATIVE INVESTIGATION OF IMAGE POTENTIAL EFFECTS ON COAGULATION RATES; (3) AN UPDATE TO OUR UNDERSTANDING OF COAGULATION SINK RATES FOR CHEMICALLY HETEROGENOUS PARTICLE COAGULATION; AND (4) AN IMPROVED COAGULATION MODEL. RESULTS FROM THIS PROPOSED WORK WILL BE INCORPORATED INTO CURRICULA WHICH INCLUDES HANDS-ON LABORATORY EXPERIENCE FOR BOTH UNDERGRADUATE AND GRADUATE STUDENTS. ADDITIONALLY, A CURRICULUM FOR SUMMER CAMP PROGRAMS REACHING K-12 STUDENTS WILL BE DEVELOPED. THIS AWARD REFLECTS NSF'S STATUTORY MISSION AND HAS BEEN DEEMED WORTHY OF SUPPORT THROUGH EVALUATION USING THE FOUNDATION'S INTELLECTUAL MERIT AND BROADER IMPACTS REVIEW CRITERIA.- SUBAWARDS ARE NOT PLANNED FOR THIS AWARD.
Mod # | Description | ReasonForModification | Federal Obligation | Date |
|---|---|---|---|---|
| Not listed | $7.0k | 4/24/25 | ||
| Not listed | $350.0k | 4/18/24 |