> Detailanzeige

Monge-Sanz, Beatriz M.; Bozzo, Alessio; Byrne, Nicholas; Chipperfield, Martyn P.; Diamantakis, Michail; Flemming, Johannes; Gray, Lesley J.; Hogan, Robin J.; Jones, Luke; Magnusson, Linus; Polichtchouk, Inna; Shepherd, Theodore G.; Wedi, Nils; Weisheimer, Antje

A stratospheric prognostic ozone for seamless Earth system models: performance, impacts and future

Literatur-
verwaltung

Zur
Merkliste

Lösche von
Merkliste

Per Whatsapp teilen

Schließen

Merkliste



Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
  • Medientyp: E-Artikel
  • Titel: A stratospheric prognostic ozone for seamless Earth system models: performance, impacts and future
  • Beteiligte: Monge-Sanz, Beatriz M.; Bozzo, Alessio; Byrne, Nicholas; Chipperfield, Martyn P.; Diamantakis, Michail; Flemming, Johannes; Gray, Lesley J.; Hogan, Robin J.; Jones, Luke; Magnusson, Linus; Polichtchouk, Inna; Shepherd, Theodore G.; Wedi, Nils; Weisheimer, Antje
  • Erschienen: Copernicus GmbH, 2022
  • Erschienen in: Atmospheric Chemistry and Physics, 22 (2022) 7, Seite 4277-4302
  • Sprache: Englisch
  • DOI: 10.5194/acp-22-4277-2022
  • ISSN: 1680-7324
  • Schlagwörter: Atmospheric Science
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: Abstract. We have implemented a new stratospheric ozone model in the European Centre for Medium-Range WeatherForecasts (ECMWF) system and tested its performance for different timescales to assess the impactof stratospheric ozone on meteorological fields.We have used the new ozone model to provide prognostic ozone in medium-range and long-range (seasonal) experiments,showing the feasibility of this ozone scheme for a seamless numerical weather prediction (NWP) modelling approach.We find that the stratospheric ozone distribution provided by the new scheme in ECMWF forecast experimentsis in very good agreement with observations, even for unusual meteorological conditions such as Arctic stratosphericsudden warmings (SSWs) and Antarctic polar vortex events like the vortex split of year 2002.To assess the impact it has on meteorological variables, we have performed experiments in which theprognostic ozone is interactive with radiation. The new scheme provides a realistic ozone field able toimprove the description of the stratosphere in the ECMWF system, as we find clear reductions of biases in the stratosphericforecast temperature. The seasonality of the Southern Hemisphere polar vortex is also significantly improvedwhen using the new ozone model.In medium-range simulations we also find improvements in high-latitude tropospheric winds during the SSWevent considered in this study. In long-range simulations, the use of the new ozone model leads toan increase in the correlation of the winter North Atlantic Oscillation (NAO) index with respect to ERA-Interim and an increase in thesignal-to-noise ratio over the North Atlantic sector. In our study we show that by improving the descriptionof the stratospheric ozone in the ECMWF system, the stratosphere–troposphere coupling improves.This highlights the potential benefits of this new ozone model to exploit stratospheric sources ofpredictability and improve weather predictions over Europe on a range of timescales.
  • Zugangsstatus: Freier Zugang