Stratospheric intrusion-influenced ozone air quality exceedances investigated in the NASA MERRA-2 Reanalysis.

ABSTRACT: Stratospheric intrusions have been the interest of decades of research for their ability to bring stratospheric ozone (O₃) into the troposphere with the potential to enhance surface O₃ concentrations. However, these intrusions have been misrepresented in models and reanalyses until recently, as the features of a stratospheric intrusion are best identified in horizontal resolutions of 50 km or smaller. NASA's Modern-Era Retrospective Analysis for Research and Applications Version-2 (MERRA-2) reanalysis is a publicly-available high-resolution dataset (~50 km) with assimilated O₃ that characterizes O₃ on the same spatiotemporal resolution as the meteorology. We demonstrate the science capabilities of the MERRA-2 reanalysis when applied to the evalua

SUBMITTER: Knowland KE 

PROVIDER: S-EPMC7370994 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature