Drizzle Representation via Enclosed Atmospheric Measurements and Modeling
Aerosol-cloud interactions remain one of the largest uncertainties in water availability and extreme weather predictions. DREAM2 aims to unravel these complexities to enhance atmospheric models.
The DREAM2 Chamber is an innovative research initiative designed to advance our understanding of clouds, aerosols, and precipitation processes, with the goal of improving global climate predictions.
Cloud chambers provide a controlled environment for studying cloud processes and are crucial for addressing fundamental questions in atmospheric research. The development of a large-scale cloud chamber in North America is a high priority for the atmospheric research community, as it would advance our understanding of climate-critical processes, such as rain formation, cloud processing of aerosol, and the impact of ice-nucleating particles on cloud physics.
Research Objective 1: Direct measurement of collision-coalescence.
Demonstrating precise measurement of collision-coalescence using innovative instruments like miniSPLAT and PCVI to improve accuracy in cloud droplet analysis.
Research Objective 2: Investigate SOA cloud processing
Examining secondary organic aerosol (SOA) processes in cloud environments to better understand their chemical impacts and effects on cloud condensation nuclei.
Research Objective 3: Characterize cloud droplet size distributions
Developing and testing the HOLODROPS instrument to measure cloud droplet size changes with high precision using advanced holographic techniques.
Research Objective 4: Develop a digital twin of the DOE chamber
Creating a digital twin to simulate cloud chamber conditions, enhance controls, and integrate machine-learning-ready microphysics packages.
Research Objective 5: Connecting cloud microphysics across scales
Mapping insights from cloud chamber experiments to larger-scale atmospheric models, focusing on processes like collision-coalescence using machine learning and LES simulations.
Research Objective 6: Investigate Ice Nucleation of SOA coated dust particles
Demonstrating measurements of immersion-mode freezing of cloud droplets containing dust and SOA-coated dust particles at warm temperatures.
