Wind-driven emission of marine ice nucleating particles in the Scripps Ocean-Atmosphere Research Simulator (SOARS)

Sea spray aerosol (SSA) represent one of the most abundant natural aerosol types, contributing significantly to global aerosol mass and aerosol optical depth, as well as to both the magnitude and uncertainty of aerosol radiative forcing. In addition to their direct effects, SSA can also serve as ice nucleating particles (INPs), which are required for the initiation of cloud glaciation at temperatures warmer than ~-36 °C. This study presents initial results from the CHaracterizing Atmosphere-Ocean parameters in SOARS (CHAOS) mesocosm campaign, which was conducted in the new Scripps Ocean-Atmosphere Research Simulator (SOARS) wind-wave channel. SOARS allows for isolation of individual factors, such as wave height, wind speed, water temperature, or biological state, and can carefully vary them in a controlled manner. Here, we focus on the influence of wind speed on the emission of SSA and INPs. In agreement with recent Southern Ocean measurements, online INP observations during CHAOS showe..., , , # Data from: Wind-driven Emission of Marine Ice Nucleating Particles in the Scripps Ocean-Atmosphere Research Simulator (SOARS)

[https://doi.org/10.5061/dryad.1jwstqk4z](https://doi.org/10.5061/dryad.1jwstqk4z)

## Overview of the campaign

The measurements archived here were collected using the Scripps Ocean-Atmosphere Research Simulator (SOARS) wind-wave channel at the Scripps Institution of Oceanography during the CHaracterizing Atmosphere-Ocean parameters in SOARS (CHAOS) study. The SOARS facility allows for the production of sea spray aerosol (SSA) in a controlled environment where individual biogeochemical parameters (wind speed, water biology and chemistry, air and water temperature) can be varied. The ability to control wind speed, in particular, is an advancement over previous wave channel experiments and increases the atmospheric relevance of the measurements. Results from CHAOS represent the first measurements obtained in the SOARS channel during July-August 2022, and focuse...