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Ship- and island-based atmospheric soundings from the 2020 EUREC4A field campaign

Claudia Christine Stephan 1 Sabrina Schnitt 2 Hauke Schulz 1 Hugo Bellenger 3 Simon P. de Szoeke 4 Claudia Acquistapace 2 Katharina Baier 1 Thibaut Dauhut 1 Rémi Laxenaire 5 Yanmichel Morfa-Avalos 1 Renaud Person 6 Estefanía Quiñones Meléndez 4 Gholamhossein Bagheri 7 Tobias Böck 2 Alton Daley 8 Johannes Güttler 9 Kevin C. Helfer 10 Sebastian A. Los 11 Almuth Neuberger 1 Johannes Röttenbacher 12 Andreas Raeke 13 Maximilian Ringel 1 Markus Ritschel 1 Pauline Sadoulet 14 Imke Schirmacher 15 M. Katharina Stolla 1 Ethan Wright 5 Benjamin Charpentier 16 Alexis Doerenbecher 17 Richard Wilson 18 Friedhelm Jansen 1 Stefan Kinne 1 Gilles Reverdin 19 Sabrina Speich 3 Sandrine Bony 3 Bjorn Stevens 1 
Abstract : To advance the understanding of the interplay among clouds, convection, and circulation, and its role in climate change, the EUREC4A and ATOMIC field campaigns collected measurements in the western tropical Atlantic during Jan-uary and February 2020. Upper-air radiosondes were launched regularly (usually 4-hourly) from a network consisting of the Barbados Cloud Observatory (BCO) and four ships within 51–60 ◦W, 6–16 ◦N. From January 8 to February 19, a total of 812 radiosondes measured wind, temperature and relative humidity. In addition to the ascent, the descent was recorded for 82 % of the soundings. The soundings sampled changes in atmospheric pressure, winds, lifting condensation level, boundary layer depth, and vertical distribution of moisture associated with different ocean surface conditions, synoptic variability, and mesoscale convective organization. Raw (Level-0), quality-controlled 1-second (Level-1), and vertically gridded (Level-2) data in NetCDF format (Stephan et al., 2020) are available to the public at AERIS ( The methods of data collection and post-processing for the radiosonde data set are described here.
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Claudia Christine Stephan, Sabrina Schnitt, Hauke Schulz, Hugo Bellenger, Simon P. de Szoeke, et al.. Ship- and island-based atmospheric soundings from the 2020 EUREC4A field campaign. Earth System Science Data, Copernicus Publications, 2021, 13 (2), pp.491-514. ⟨10.5194/essd-13-491-2021⟩. ⟨insu-02918594v2⟩



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