Articles | Volume 19, issue 5
Research article
11 Mar 2019
Research article |  | 11 Mar 2019

From ERA-Interim to ERA5: the considerable impact of ECMWF's next-generation reanalysis on Lagrangian transport simulations

Lars Hoffmann, Gebhard Günther, Dan Li, Olaf Stein, Xue Wu, Sabine Griessbach, Yi Heng, Paul Konopka, Rolf Müller, Bärbel Vogel, and Jonathon S. Wright

Data sets

The ERA-Interim reanalysis: configuration and performance of the data assimilation system D. P. Dee, S. M. Uppala, A. J. Simmons, P. Berrisford, P. Poli, S. Kobayashi, U. Andrae, M. A. Balmaseda, G. Balsamo, P. Bauer, P. Bechtold, A. C. M. Beljaars, L. van de Berg, J. Bidlot, N. Bormann, C. Delsol, R. Dragani, M. Fuentes, A. J. Geer, L. Haimberger, S. B. Healy, H. Hersbach, E. V. Hólm, L. Isaksen, P. Kãllberg, M. Köhler, M. Matricardi, A. P. McNally, B. M. Monge-Sanz, J.-J. Morcrette, B.-K. Park, C. Peubey, P. de Rosnay, C. Tavolato, J.-N. Thépaut, and F. Vitart

ERA5 reanalysis is in production, ECMWF Newsletter H. Hersbach, and D. Dee https://www.ecmwf. int/en/newsletter/147/news/era5-reanalysis-production

CDO User’s Guide, Max-Planck-Institut für Meteorologie U. Schulzweida

Model code and software

Lagrangian transport simulations of volcanic sulfur dioxide emissions: impact of meteorological data products L. Hoffmann, T. Rößler, S. Griessbach, Y. Heng, and O. Stein

A new Chemical Lagrangian 110 Model of the Stratosphere (CLaMS) 2. Formulation of chemistry scheme and initialization D. S. McKenna, J.-U. Grooß, G. Günther, P. Konopka, R. Müller, G. Carver, and Y. Sasano

A new Chemical Lagrangian Model of the Stratosphere (CLaMS) 1. Formulation of advection and mixing D. S. McKenna, P. Konopka, J.-U. Grooß, G. Günther, R. Müller, R. Spang, D. Offermann, and Y. Orsolini

Short summary
ECMWF's new ERA5 reanalysis provides higher spatiotemporal resolution, yielding an improved representation of meso- and synoptic-scale features of the atmosphere. We assessed the impact of this challenging new data set on Lagrangian trajectory calculations for the free troposphere and stratosphere. Key findings are considerable transport deviations between the ERA5 and ERA-Interim simulations as well as significantly improved conservation of potential temperature in the stratosphere for ERA5.
Final-revised paper