Ozone impact from solar energetic particles cools the polar stratosphere.

ABSTRACT: Understanding atmospheric impacts of solar energetic particle precipitation (EPP) remains challenging, from quantification of the response in ozone, to implications on temperature. Both are necessary to understand links between EPP and regional climate variability. Here we use a chemistry-climate model to assess the importance of EPP on late winter/spring polar stratosphere. In transient simulations, the impact on NO_y, ozone, and temperature is underestimated when using EPP forcing from the current recommendation of the Coupled Model Intercomparison Project (CMIP6). The resulting temperature response is largely masked by overall dynamical variability. An idealised experiment with EPP forcing that reproduces observed levels of NO_y results in a significant reduction of

SUBMITTER: Szela G ME 

PROVIDER: S-EPMC9653381 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature