Sounding data of SO284 Radiosonde data from the RV Sonne cruise SO284: Tropical Atlantic Circulation and Climate: Mooring Rescue (June 27, 2021 - August 16, 2021) The dataset includes both raw data as well as post-processed products: Processing level Description Usage examples 0 mwx sounding files as delivered by Vaisalas sounding software Checking specific setup of sounding station, Archival of data 1 Level 0 data converted to netCDF4 Analysis of single soundings for the most accurate measurements possible 2 Level 1 data interpolated to a vertical grid Analysis of entire campaign or comparison with other observations or simulations A full description of the dataset and the processing scripts involved can be found in the following repository: https://github.com/observingClouds/soundings_circbrazil Soundings were conducted by H. Franke, I. Quaglia, K. Stolla and J. Windmiller. Technical support has generously been given on-board by R. Engelmann, J. Lehmke, T. Ruhtz and A. Skupin. Post-processing of the data has been done by H. Schulz. Planning of the cruise and the atmospheric measurement strategy are the work of J. Windmiller. Zenodo