AC4 News

An AC4-funded research study finds model bias related to aerosol concentrations compared to global aircraft field data, and corrects the bias using improved precipitation representation.

Using data from the FIREX-AQ field campaign, a new AC4-funded research study develops a comparison between aerosol concentration and the way aerosol particles scatter light in the atmosphere, offering new insights into wildfire smoke evolution.

This fact sheet summarizes NOAA’s efforts to improve the understanding of the impact of aerosols on weather, air quality and climate.

This fact sheet summarizes NOAA’s efforts to improve the understanding of the impact of aerosols on weather, air quality and climate.

New research demonstrates the presence of solid organic-coated ammonium sulfate particles in the Arctic boundary layer. As the Arctic loses ice, researchers expect to see more of these unique particles formed from oceanic emissions combined with ammonia from birds, that can change how clouds form and climate.