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Cloud Physics Breakout

This article delves into critical issues in cloud physics, particularly the driving factors affecting precipitation formation. It emphasizes the need for improved measurements and characterization of both cloud and aerosol interactions, including the effects of aerosols on warm rain and ice formation. Additionally, it highlights the importance of advanced technologies for accurately assessing humidity, temperature, and other state parameters in clouds. By addressing gaps in current measurement techniques and promoting remote sensing advancements, this research aims to provide a better understanding of cloud processes and their influence on precipitation dynamics.

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Cloud Physics Breakout

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Presentation Transcript

  1. Cloud Physics Breakout Science Questions/Issues: Driving factors/relative importance of these factors in understanding precipitation formation needs to be better understood/characterized through measurements Cloud/Aerosol interaction: Aerosol impact on warm rain processes, ccn, giant aerosol Aerosol impact on ice formation in clouds, biological, where ice forms, concentration of ice Cloud impacts on aerosol, cloud processing Cloud Particle/Precipitation growth: Drizzle formation/coalescence, growth to larger particles, effects of turbulence Growth of ice in clouds Observations of supercooled water/mixed phase clouds

  2. Cloud Physics Breakout • Science Questions/Issues: • Driving factors/relative importance of these factors in understanding precipitation formation needs to be better understood/characterized through measurements • Cloud Transport: • Vertical transport of chemical species through the troposphere • Transport/dispersion within cloud • (Cloud entrainment processes)

  3. Cloud Physics Breakout • Measure Needs: • Many of the in situ measurements are based on “old” technology with incremental improvements over the years • A recognized need for improved measurements of state parameters in clouds: • Humidity in and around clouds, temperature measurements in cloud—discussion of radiometric techniques & absorption techniques: development of technologies & production level instruments

  4. Cloud Physics Breakout • Measure Needs: • Many of the in situ measurements are based on “old” technology with incremental improvements over the years • Characterization & Calibration of instruments: • Need to develop “standard” for cloud physics measurements, within a laboratory setting • Development of a new facility or access to existing facilities that can simulate cloud conditions/aircraft speeds for calibration, characterization, comparison, & development • Flow modeling—flow around aircraft and flow in and through instruments & inlets

  5. Cloud Physics Breakout • Remote Sensing: • Complimentary measurements from multiple remote sensors and/or combined remote sensing & in situ capabilities • Precipitation radars on aircraft (C130 & N2UW) • Combination of lidar& radars for multi-parameter retrievals (and/or multi-wavelength radars) • Use of radiometric techniques to constrain radar/lidar measurements & retrievals (airborne and surface-based application)

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