2025 News & Events

The University of Colorado CIRES Rendezvous on May 15^th recognized several of our colleagues. We highlight research achievements and other accomplishments of CIRES staff working at CSL who have received recent awards and honors, and participated in this year's CIRES Rendezvous.

Matt Coggon, Jeff Peischl, Chelsea Stockwell, Kristen Zuraski, and Ken Aikin received a CIRES Bronze Medal for exceptional service to communities affected by the Marshall Fire in providing timely air quality information to support recovery efforts. Read More

Christoph Senff, Eleanor Waxman, and Wyndom Chace received a CIRES Bronze Medal along with other CIRES/NOAA Outreach Ambassadors, for significantly enhancing NOAA's ability to increase awareness of NOAA's mission through outreach, education and service.

CSL staff are recognized for career track promotions within CIRES: Han Huynh, Congmeng Lyu, Ming Lyu, and Georgia Michailoudi to Research Scientist (RS) II; Adam Ahern, Kai-Lan Chang, Audrey Gaudel, Jake Gristey, Michael Lawler, Meng Li, and Kristen Zuraski to Research Scientist (RS) III.

Several CSL scientists are recognized for milestones in their years of service with CIRES: Daniel Van Hoomissen (5), Chris Maloney (5), Yelena Pichugina (20), Brandi McCarty (25), Richard Marchbanks (30), and Christoph Senff (30).

Early-career CIRES scientists presented science highlights in flash talks to kick off the honors. One of the five was given by CSL:

• Eshkol Eytan: The hidden role of clouds in clear skies

Many in CSL contributed to the poster session. Of 109 poster presentations, 14 CSL researchers were first authors (13%). CSL researchers were co-authors on 3 posters (without a CSL first author).

• Communications, Policy, Outreach, Education
• CIRES Mentoring Program Committee (Han Huynh and Jianhao Zhang from CSL): CIRES Mentoring Program
• Data (management, analysis, visualization, science and asymilation)
• Chia-Hua Hsu: Top-down estimates of U.S. NOx emissions using TEMPO and TROPOMI NO2 remote sensing observations



• Environmental Chemistry
• Michael Lawler: Direct measurements of meteoric-sulfuric particles formed in the winter polar vortex
• Environmental Monitoring and Observations
• Sunil Baidar: Improving urban greenhouse gas emission estimates from mass balance method using airborne Doppler lidar measurements
• Han Huynh: Evaluation of In Situ Size-Resolved Composition Model from the 2023 AEROMMA Airborne Field Mission Against Ground-Based and Remote Sensing Aerosol Optical Measurements
• Joey Taylor: A Lightweight Unmanned Aerial System-borne Remote Sensing Payload for Wildfires - NightFOX
• Ilana Pollack: Apportioning Sources of Nitrogenous Species in California's Central Valley
• Ming Lyu: In situ Aerosol Measurements in the Lower Stratosphere and Observation of an An Unrecognized Mode of Small Particles
• Jake Gristey: Brightening Clouds with Stratospheric Aerosols
• Weather and Climate
• Brian Carroll: Wildfire Smoke Shading Observations: Impacts on Boundary Layer Mixing and Thermally Driven Smoke Transport
• Jianhao Zhang: Radiative forcing from the 2020 shipping fuel regulation is large but hard to detect
• Isabel L. McCoy: Utilizing Mesoscale Cloud Morphology Regimes to Understand Forcing and Feedback
• Christopher M. Maloney: Investigating the Potential Atmospheric Accumulation and Radiative Impact of the Coming Increase in Satellite Reentry Frequency
• Melody Avery: Deep Convective Transport of Low Ozone to the Tropical Upper Troposphere and Lower Stratosphere
• Georgia Michailoudi: Revealing the Expected and Unexpected Impacts of Pyrocumulonimbus on Aerosol Composition at High Latitude and Altitude

The day began with the annual CIRES "Rundezvous" with a strong finish from CSL. In the womens division, Tegan Brown, Nell Schafer, and Wyndom Chace were the top three finishers. Congratulations runners!

Our CSL representatives Nathan Malarich and Jianhao Zhang and the CIRES Members' Council (CMC) provided support for the very successful 2025 CIRES Rendezvous on May 15^th.