Arctic Mixed-Phase Clouds

Lagrangian modeling validated against MOSAiC observations

Arctic mixed-phase clouds are persistent features of the polar atmosphere, containing both liquid droplets and ice crystals. These clouds play a critical role in the Arctic surface energy budget and are notoriously difficult to simulate correctly.

Research Focus

At CIRES, I work with Dr. Graham Feingold to investigate Arctic mixed-phase cloud stability using:

  • Lagrangian Cloud Model (LCM) simulations that explicitly track individual hydrometeors
  • MOSAiC observational data from the year-long Arctic drift expedition
  • Process-level analysis of cloud-aerosol-radiation interactions

Key Questions

  • What controls the stability of Arctic mixed-phase clouds?
  • How do microphysical processes influence cloud longevity?
  • Can we improve climate model representations of polar clouds?

References