Journal cover Journal topic
Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 4.252 IF 4.252
  • IF 5-year value: 4.890 IF 5-year 4.890
  • CiteScore value: 4.49 CiteScore 4.49
  • SNIP value: 1.539 SNIP 1.539
  • SJR value: 2.404 SJR 2.404
  • IPP value: 4.28 IPP 4.28
  • h5-index value: 40 h5-index 40
  • Scimago H index value: 51 Scimago H index 51
Volume 9, issue 9
Geosci. Model Dev., 9, 3071-3091, 2016
https://doi.org/10.5194/gmd-9-3071-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Geosci. Model Dev., 9, 3071-3091, 2016
https://doi.org/10.5194/gmd-9-3071-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Model description paper 06 Sep 2016

Model description paper | 06 Sep 2016

C-IFS-CB05-BASCOE: stratospheric chemistry in the Integrated Forecasting System of ECMWF

Vincent Huijnen1, Johannes Flemming2, Simon Chabrillat3, Quentin Errera3, Yves Christophe3, Anne-Marlene Blechschmidt4, Andreas Richter4, and Henk Eskes1 Vincent Huijnen et al.
  • 1Royal Netherlands Meteorological Institute, De Bilt, the Netherlands
  • 2European Centre for Medium-Range Weather Forecasts, Reading, UK
  • 3Belgian Institute for Space Aeronomy (BIRA-IASB), Brussels, Belgium
  • 4Institute of Environmental Physics, University of Bremen, Bremen, Germany

Abstract. We present a model description and benchmark evaluation of an extension of the tropospheric chemistry module in the Integrated Forecasting System (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF) with stratospheric chemistry, referred to as C-IFS-CB05-BASCOE (for brevity here referred to as C-IFS-TS). The stratospheric chemistry originates from the one used in the Belgian Assimilation System for Chemical ObsErvations (BASCOE), and is here combined with the modified CB05 chemistry module for the troposphere as currently used operationally in the Copernicus Atmosphere Monitoring Service (CAMS). In our approach either the tropospheric or stratospheric chemistry module is applied, depending on the altitude of each individual grid box with respect to the tropopause. An evaluation of a 2.5-year long C-IFS-TS simulation with respect to various satellite retrieval products and in situ observations indicates good performance of the system in terms of stratospheric ozone, and a general improvement in terms of stratospheric composition compared to the C-IFS predecessor model version. Possible issues with transport processes in the stratosphere are identified. This marks a key step towards a chemistry module within IFS that encompasses both tropospheric and stratospheric composition, and could expand the CAMS analysis and forecast capabilities in the near future.

Publications Copernicus
Download
Short summary
We present a model description and benchmark evaluation of an extension of the tropospheric chemistry module in the ECMWF Integrated Forecasting System (IFS) with stratospheric chemistry. The stratospheric chemistry originates from the one used in the Belgian Assimilation System for Chemical ObsErvations (BASCOE), and is here combined with the modified CB05 chemistry module for the troposphere as currently used operationally in the Copernicus Atmosphere Monitoring Service (CAMS).
We present a model description and benchmark evaluation of an extension of the tropospheric...
Citation
Share