Karstensen, Johannes , Lavik, Gaute, Acquistapace, Claudia, Baghen, Gholamhossein, Begler, Christian, Bendinger, Arne, Bodenschatz, Eberhard, Böck, Tobias, Güttler, Johannes, Hall, Kashawn, Körner, Mareike, Kopp, Andreas, Lange, Diego, Mehlmann, Melina, Nordsiek, Freja, Reus, Klaus, Ribbe, Joachim, Philippi, Miriam, Piosek, Sandra, Ritschel, Markus, Tschitschko, Bernhard and Wiskandt, Jonathan (2020) EUREC4A Campaign, Cruise No. MSM89, 17. January - 20. February 2020, Bridgetown (Barbados) - Bridgetown (Barbados), The ocean mesoscale component in the EUREC4A++ field study. . Maria S. Merian-Berichte, MSM89 . Gutachterpanel Forschungsschiffe, Bonn, Germany, 70 pp. DOI 10.2312/cr_msm89.

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Abstract

The MSM89 expedition of Maria S Merian was a contribution to the international research initiative EUREC4A (www.eurec4a.eu). The cruise was carried out in concert with the M161 campaign on RV METEOR (Germany) and the EUREC4A-OA campaign on NO L’ATALANTE (France). Airplane and drone operations as well as well as continuous observations from the ground-based site on the Island of Barbados (BCO) were considered during the MSM89 campaign.
Moreover, the cruise was coordinated with ships and Saildrone© operations in the context of the US American ATOMIC project. The overall goal of the EUREC4A field campaign was to collect observational data that will enable research on dynamic and thermodynamic processes in the
atmosphere and ocean that will bring the understanding of the role of clouds in the climate system to a new level.
MSM89 had its focus on the ocean/atmosphere coupling across ocean mesoscale vortices. For this purpose, both ocean and atmosphere profile measurements were carried out to observe the temporal evolution and spatial heterogeneity of the atmospheric and oceanic boundary layer.
Autonomous observing platforms (underwater glider) and a ship towed platform (Cloudkite) augmented the ship-based observations. Incubation experiments were performed to determine Nitrogen fixation rates, the gas exchange for carbon dioxide and oxygen uptake.

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