Print Email Facebook Twitter EUREC4A Title EUREC4A Author Stevens, Bjorn (Max Planck Institute for Meteorology) Bony, Sandrine (Université Pierre et Marie Curie/CNRS) Farrell, D. (Caribbean Institute for Meteorology and Hydrology) Ament, Felix (Universität Hamburg; Max Planck Institute for Meteorology) Blyth, Alan (University of Leeds) Nuijens, Louise (TU Delft Atmospheric Remote Sensing) Siebesma, A.P. (TU Delft Atmospheric Remote Sensing) de Groot, G.E. (TU Delft Atmospheric Remote Sensing) Helfer, K.C. (TU Delft Atmospheric Remote Sensing) Date 2021 Abstract The science guiding the EUREC4A campaign and its measurements is presented. EUREC4A comprised roughly 5 weeks of measurements in the downstream winter trades of the North Atlantic - eastward and southeastward of Barbados. Through its ability to characterize processes operating across a wide range of scales, EUREC4A marked a turning point in our ability to observationally study factors influencing clouds in the trades, how they will respond to warming, and their link to other components of the earth system, such as upper-ocean processes or the life cycle of particulate matter. This characterization was made possible by thousands (2500) of sondes distributed to measure circulations on meso- (200 km) and larger (500 km) scales, roughly 400 h of flight time by four heavily instrumented research aircraft; four global-class research vessels; an advanced ground-based cloud observatory; scores of autonomous observing platforms operating in the upper ocean (nearly 10 000 profiles), lower atmosphere (continuous profiling), and along the air-sea interface; a network of water stable isotopologue measurements; targeted tasking of satellite remote sensing; and modeling with a new generation of weather and climate models. In addition to providing an outline of the novel measurements and their composition into a unified and coordinated campaign, the six distinct scientific facets that EUREC4A explored - from North Brazil Current rings to turbulence-induced clustering of cloud droplets and its influence on warm-rain formation - are presented along with an overview of EUREC4A's outreach activities, environmental impact, and guidelines for scientific practice. Track data for all platforms are standardized and accessible at 10.25326/165 , and a film documenting the campaign is provided as a video supplement. To reference this document use: http://resolver.tudelft.nl/uuid:2dfcfdfe-2cd0-40e7-b749-e7b27edd2415 DOI https://doi.org/10.5194/essd-13-4067-2021 ISSN 1866-3508 Source Earth System Science Data, 13 (8), 4067-4119 Part of collection Institutional Repository Document type review Rights © 2021 Bjorn Stevens, Sandrine Bony, D. Farrell, Felix Ament, Alan Blyth, Louise Nuijens, A.P. Siebesma, G.E. de Groot, K.C. Helfer, More Authors Files PDF essd_13_4067_2021.pdf 31.89 MB Close viewer /islandora/object/uuid:2dfcfdfe-2cd0-40e7-b749-e7b27edd2415/datastream/OBJ/view