Wood R. auteur aut IRD Mechoso C. R. auteur aut IRD Bretherton C. S. auteur aut IRD Weller R. A. auteur aut IRD Huebert B. auteur aut IRD Straneo F. auteur aut IRD Albrecht B. A. auteur aut IRD Coe H. auteur aut IRD Allen G. auteur aut IRD Vaughan G. auteur aut IRD Daum P. auteur aut IRD Fairall C. auteur aut IRD Chand D. auteur aut IRD Klenner L. G. auteur aut IRD Garreaud R. auteur aut IRD Grados C. auteur aut IRD Covert D. S. auteur aut IRD Bates T. S. auteur aut IRD Krejci R. auteur aut IRD Russell L. M. auteur aut IRD de Szoeke S. auteur aut IRD Brewer A. auteur aut IRD Yuter S. E. auteur aut IRD Springston S. R. auteur aut IRD Chaigneau Alexis auteur aut IRD Toniazzo T. auteur aut IRD Minnis P. auteur aut IRD Palikonda R. auteur aut IRD Abel S. J. auteur aut IRD Brown W. O. J. auteur aut IRD Williams S. auteur aut IRD Fochesatto J. auteur aut IRD Brioude J. auteur aut IRD Bower K. N. auteur aut IRD text journalArticle eng text/pdf born digital access The VAMOS(1) Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx) was an international field program designed to make observations of poorly understood but critical components of the coupled climate system of the southeast Pacific. This region is characterized by strong coastal upwelling, the coolest SSTs in the tropical belt, and is home to the largest subtropical stratocumulus deck on Earth. The field intensive phase of VOCALS-REx took place during October and November 2008 and constitutes a critical part of a broader CLIVAR program (VOCALS) designed to develop and promote scientific activities leading to improved understanding, model simulations, and predictions of the southeastern Pacific (SEP) coupled ocean-atmosphere-land system, on diurnal to interannual timescales. The other major components of VOCALS are a modeling program with a model hierarchy ranging from the local to global scales, and a suite of extended observations from regular research cruises, instrumented moorings, and satellites. The two central themes of VOCALS-REx focus upon (a) links between aerosols, clouds and precipitation and their impacts on marine stratocumulus radiative properties, and (b) physical and chemical couplings between the upper ocean and the lower atmosphere, including the role that mesoscale ocean eddies play. A set of hypotheses designed to be tested with the combined field, monitoring and modeling work in VOCALS is presented here. A further goal of VOCALS-REx is to provide datasets for the evaluation and improvement of large-scale numerical models. VOCALS-REx involved five research aircraft, two ships and two surface sites in northern Chile. We describe the instrument pay-loads and key mission strategies for these platforms and give a summary of the missions conducted. specialized 020 021 11 2 627-654 2011 1680-7316 https://www.documentation.ird.fr/hor/fdi:010053171 10.5194/acp-11-627-2011 1680-7316 [F B010053171] https://www.documentation.ird.fr/hor/fdi:010053171 https://www.documentation.ird.fr/intranet/publi/2011/03/010053171.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2011-04-07 2017-08-23 fdi:010053171 fre