TACOS has added 10 acoustic current meters to the Prediction and Research Moored Array in the Tropical Atlantic (PIRATA) buoy, moored at 4N, 23W. Profile measurements are taken every 1-10 minutes, depending on depth. Prior to the addition of the TACOS upper ocean observations in March 6, 2017 velocity profiles were only collected at this location during shipboard surveys. These measurements are important because ocean currents influence temperature, salinity, and air-sea fluxes in the tropical North Atlantic, which affect weather, climate, and fisheries of the surrounding continents.
The manuscript “An enhanced PIRATA data set for tropical Atlantic ocean-atmosphere research”, by Greg Foltz, Claudia Schmid, and Rick Lumpkin, was accepted for publication in Journal of Climate. It describes a new set of daily time series (ePIRATA) that is based on the measurements from 17 moored buoys of the Prediction and Research Moored Array in the Tropical Atlantic (PIRATA).
Researchers at NOAA AOML have released a new tropical Atlantic data set that includes several enhancements to improve data accuracy and data collection in the tropical Atlantic. The new data set is called enhanced PIRATA, or ePIRATA, and provides continuous records of upper-ocean temperature, salinity, and currents, together with meteorological data such as winds, humidity, and solar radiation. ePIRATA should prove valuable in better analyzing ocean and atmospheric processes in the tropical Atlantic.
PIRATA, the Prediction and Research Moored Array in the Tropical Atlantic, is a multinational observation network, established to improve 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, motivated by fundamental scientific issues and by societal needs for improved prediction of climate variability and its impact on the countries surrounding the tropical Atlantic basin. PIRATA provides measurements at 18 locations throughout the tropical Atlantic
NOAA AOML scientists participated in the 2017 annual PIRATA Northeasten Extension (PNE) and Saharan Dust AERosols and Ocean Science Expeditions (AEROSE) cruise aboard the NOAA Ship Ronald H. Brown from February 19 to March 25.
On December 28, 2014 scientists with the PIRATA Northeast Extension cruise deployed drifters, collected CTD casts and deployed/recovered moorings. Aboard the UNOLS R/V Endeavor, the PNE project is a joint AOML and PMEL effort to expand the PIRATA array of tropical Atlantic ATLAS moorings into the northern and northeastern sectors of the Tropical Atlantic Ocean.
In an article recently published in Climate Dynamics (Perez et al., 2013) , scientists in PhOD (R. Perez, R. Lumpkin, C. Schmid) described for the first time the mean vertical and cross-equatorial structure of the upper-ocean meridional currents in the Atlantic cold tongue region, using in situ observations including drifters, Argo, shipboard/lowered ADCP, and moored ADCP. This study involves collaborations with scientists from the University of Miami, Scripps Institution of Oceanography, and several international institutions and makes use of data from several major tropical Atlantic field programs including NOAA’s PIRATA Northeast Extension.