Arctic Ice Nucleation Sampling during MOSAiC (INPMOSAIC2) Field Campaign Report

• Main Authors: Creamean, Jessie, Hill, Thomas, DeMott, Paul, Barry, Kevin, Hume, Carson
• Language: unknown
• Published: 2022
• Subjects: 54 ENVIRONMENTAL SCIENCES; Arctic; Arctic Ocean; Ice; permafrost; Sea ice
• Online Access: http://www.osti.gov/servlets/purl/1810323; https://www.osti.gov/biblio/1810323; https://doi.org/10.2172/1810323

The accelerated rate of warming in the Arctic is of great concern due to potential impacts that include release of greenhouse gases from permafrost, melting glacial ice contributing to sea level rise, and declining sea ice cover exposing the darker ocean surface. These processes induce positive feedbacks and contribute to further warming that affects climate globally. Clouds play a crucial role in regulating the energy reaching the sea ice and snow surfaces, but the magnitude of their effects on surface temperature is not well constrained in the Arctic. Aerosols are an important contributor by serving as seeds for cloud particle formation, but even less is known about their overall impact and origin. In particular, aerosols that serve as ice nucleating particles (INPs) are vastly understudied, especially above the central Arctic Ocean. However, INPs likely play a significant role in arctic mixed-phase cloud (AMPC) microphysics and the resulting impacts of such clouds on the surface energy budget over the sea ice.