Articles | Volume 5, issue 2
Research article
05 Apr 2024
Research article |  | 05 Apr 2024

Influence of radiosonde observations on the sharpness and altitude of the midlatitude tropopause in the ECMWF IFS

Konstantin Krüger, Andreas Schäfler, Martin Weissmann, and George C. Craig


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-2094', Anonymous Referee #1, 13 Nov 2023
  • RC2: 'Comment on egusphere-2023-2094', Anonymous Referee #2, 20 Nov 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Konstantin Krueger on behalf of the Authors (09 Jan 2024)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (18 Jan 2024) by Sebastian Schemm
RR by Anonymous Referee #1 (09 Feb 2024)
ED: Publish subject to technical corrections (09 Feb 2024) by Sebastian Schemm
AR by Konstantin Krueger on behalf of the Authors (16 Feb 2024)  Author's response   Manuscript 
Short summary
Initial conditions of current numerical weather prediction models insufficiently represent the sharp vertical gradients across the midlatitude tropopause. Observation-space data assimilation output is used to study the influence of assimilated radiosondes on the tropopause. The radiosondes reduce systematic biases of the model background and sharpen temperature and wind gradients in the analysis. Tropopause sharpness is still underestimated in the analysis, which may impact weather forecasts.