Abstract
The Atlantic Tradewind Ocean-Atmosphere Mesoscale Interaction Campaign (ATOMIC) took place from January 7 to July 11, 2020 in the tropical North Atlantic between the eastern edge of Barbados and 51° W, the longitude of the Northwest Tropical Atlantic Station (NTAS) mooring. Measurements were made to gather information on shallow atmospheric convection, the effects of aerosols and clouds on the ocean surface energy budget, and mesoscale oceanic processes. Multiple platforms were deployed during ATOMIC including the NOAA RV Ronald H. Brown (RHB) (Jan. 7 to Feb. 13) and WP-3D Orion (P-3) aircraft (Jan. 17 to Feb. 10), the University of Colorado's RAAVEN Uncrewed Aerial System (UAS) (Jan. 24 to Feb. 15), NOAA- and NASA-sponsored Saildrones (Jan. 12 to Jul. 11), and Surface Velocity Program Salinity (SVPS) surface ocean drifters (Jan. 23 to Apr. 29). The RV Ronald H. Brown conducted in situ and remote sensing measurements of oceanic and atmospheric properties with an emphasis on mesoscale oceanic-atmospheric coupling and aerosol-cloud interactions. In addition, the ship served as a launching pad for Wave Gliders, Surface Wave Instrument Floats with Tracking (SWIFTs), and radiosondes. Details of measurements made from the RV Ronald H. Brown, ship-deployed assets, and other platforms closely coordinated with the ship during ATOMIC are provided here. These platforms include Saildrone 1064 and the RAAVEN UAS as well as the Barbados Cloud Observatory (BCO) and Barbados Atmospheric Chemistry Observatory (BACO). Inter-platform comparisons are presented to assess consistency in the data sets. Data sets from the RV Ronald H. Brown and deployed assets have been quality controlled and are publicly available at the NOAA Physical Sciences Laboratory (PSL) ATOMIC ftp server (ftp://ftp2.psl.noaa.gov/Projects/ATOMIC/data/ (Quinn et al., 2020). In addition, the data have been submitted to NOAA's National Centers for Environmental Information (NCEI) data archive (https://www.ncei.noaa.gov/) for Digital Object Identifiers (DOIs). Point of contact information and links to individual data sets are provided herein.