Evaluation of vertical transport in ERA5 and ERA-Interim reanalysis using high-altitude aircraft measurements in the Asian summer monsoon 2017

Vogel, Bärbel; Volk, C. Michael; Wintel, Johannes; Lauther, Valentin; Clemens, Jan; Grooß, Jens-Uwe; Günther, Gebhard; Hoffmann, Lars; Laube, Johannes C.; Müller, Rolf; Ploeger, Felix; Stroh, Fred

doi:https://doi.org/10.5194/acp-24-317-2024

Articles | Volume 24, issue 1

https://doi.org/10.5194/acp-24-317-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

https://doi.org/10.5194/acp-24-317-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 1

Research article

|

11 Jan 2024

Research article |

| 11 Jan 2024

Evaluation of vertical transport in ERA5 and ERA-Interim reanalysis using high-altitude aircraft measurements in the Asian summer monsoon 2017

Bärbel Vogel, C. Michael Volk, Johannes Wintel, Valentin Lauther, Jan Clemens, Jens-Uwe Grooß, Gebhard Günther, Lars Hoffmann, Johannes C. Laube, Rolf Müller, Felix Ploeger, and Fred Stroh

Data sets

Mission: STRATOCLIM Deutsches Zentrum für Luft- und Raumfahrt, HALO Database https://halo-db.pa.op.dlr.de/mission/101

Atmospheric carbon dioxide dry air mole fraction at Comilla, Bangladesh Y. Terao et al. https://doi.org/10.17595/20220301.002

Atmospheric carbon dioxide dry air mole fraction at Nainital, India Y. Terao et al. https://doi.org/10.17595/20220301.001

Reanalysis Tropopause Data Repository L. Hoffmann and B. Spang https://doi.org/10.26165/JUELICH-DATA/UBNGI2

Model code and software

Chemical Lagrangian Model of the Stratosphere (CLaMS) code repository R. Müller et al. https://jugit.fz-juelich.de/clams/CLaMS

Short summary

Over the Indian subcontinent, polluted air is rapidly uplifted to higher altitudes during the Asian monsoon season. We present an assessment of vertical transport in this region using different wind data provided by the European Centre for Medium-Range Weather Forecasts (ECMWF), as well as high-resolution aircraft measurements. In general, our findings confirm that the newest ECMWF reanalysis product, ERA5, yields a better representation of transport compared to the predecessor, ERA-Interim.