The PIRATA acronym, originally defined as “Pilot Research Moored Array in the Tropical Atlantic” in 1997, has been changed in 2008 to “Prediction and Research Moored Array in the Tropical Atlantic”. PIRATA is a multinational observation network, established to improve our knowledge and understanding of ocean-atmosphere variability in the tropical Atlantic. It is a joint project of Brazil, France and the United States of America. For more information, visit the main PIRATA web site, including data display and delivery.