Tuchen Franz Philip franz.philip.tuchen@noaa.gov 0000-0002-2189-9217 Brandt Peter pbrandt@geomar.de 0000-0002-9235-955X GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Hummels Rebecca rhummels@geomar.de 0000-0002-3746-6213 GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Llido Jerome llido@notos.cst.cnes.fr Gasparin Florent Rousselot Pierre 2026 Data product of full-depth current velocity observations at 0°N, 23°W from 2001-2025 (v3.0) dataset editorial publication https://doi.pangaea.de/10.1594/PANGAEA.996117 2026-07-20T14:44:34 Since 2001, current velocities have been measured continuously as part of a multilateral collaboration, the Prediction and Research Moored Array in the Tropical Atlantic (PIRATA), that regularly services a moored observatory located at 0°N, 23°W. Here, we present an update of 24 years of full-depth current velocity observations at 0°N, 23°W. With the presented current velocity data product, we aim to provide an important and accessible reference data set against which models and reanalysis output could be validated. The velocity time series will also be helpful for studies focusing on long-term climate variability to search for connections with changes in the equatorial circulation over the last 24 years. Earlier versions of this data product have already been used in a variety of studies and provided a significant contribution to an overall improved understanding of equatorial ocean dynamics. The moored observatory at 0°N, 23°W is an ongoing example of a successful multinational collaboration extending over more than two decades. Tuchen Franz Philip franz.philip.tuchen@noaa.gov 0000-0002-2189-9217 Brandt Peter pbrandt@geomar.de 0000-0002-9235-955X Hahn Johannes johannes.hahn@bsh.de 0000-0002-5638-2031 Hummels Rebecca rhummels@geomar.de 0000-0002-3746-6213 Krahmann Gerd gkrahmann@geomar.de Bourles Bernard bernard.bourles@ird.fr Provost Christine cp@locean-ipsl.upmc.fr 0000-0003-4693-3685 McPhaden Michael J mcphaden@noaapmel.gov Toole John M jtoole@whoi.edu 0000-0003-2905-0637 2022 Two Decades of Full-Depth Current Velocity Observations From a Moored Observatory in the Central Equatorial Atlantic at 0°N, 23°W journal article Frontiers in Marine Science 9 https://doi.org/10.3389/fmars.2022.910979 Current velocities in nc format (V3.0) dataset https://store.pangaea.de/Publications/HummelsR_2026/current_velocities_0N_23W_interp_v3_0.nc Tuchen Franz Philip franz.philip.tuchen@noaa.gov 0000-0002-2189-9217 Brandt Peter pbrandt@geomar.de 0000-0002-9235-955X Hahn Johannes johannes.hahn@bsh.de 0000-0002-5638-2031 Hummels Rebecca rhummels@geomar.de 0000-0002-3746-6213 Krahmann Gerd gkrahmann@geomar.de Bourles Bernard bernard.bourles@ird.fr Provost Christine cp@locean-ipsl.upmc.fr 0000-0003-4693-3685 McPhaden Michael J mcphaden@noaapmel.gov Toole John M jtoole@whoi.edu 0000-0003-2905-0637 2022 Data product of full-depth current velocity observations at 0°N, 23°W from 2001-2021 (v1.0) dataset editorial publication https://doi.org/10.1594/PANGAEA.941042 Tuchen Franz Philip franz.philip.tuchen@noaa.gov 0000-0002-2189-9217 Brandt Peter pbrandt@geomar.de 0000-0002-9235-955X Hahn Johannes johannes.hahn@bsh.de 0000-0002-5638-2031 Hummels Rebecca rhummels@geomar.de 0000-0002-3746-6213 Krahmann Gerd gkrahmann@geomar.de Bourles Bernard bernard.bourles@ird.fr Provost Christine cp@locean-ipsl.upmc.fr 0000-0003-4693-3685 McPhaden Michael J mcphaden@noaapmel.gov Toole John M jtoole@whoi.edu 0000-0003-2905-0637 2023 Data product of full-depth current velocity observations at 0°N, 23°W from 2001-2023 (v2.0) dataset editorial publication https://doi.org/10.1594/PANGAEA.963935 -44.25065 13.49973 -18.63557 39.00055 -23.447802107449082 1.7075334877536463 2001-12-13T17:00:00 2025-02-03T23:59:00 not specified SFB754 Climate - Biogeochemistry Interactions in the Tropical Ocean http://www.sfb754.de GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 PIRATA Prediction and Research Moored Array in the Tropical Atlantic https://www.pmel.noaa.gov/gtmba/pmel-theme/atlantic-ocean-pirata RACE Regional Atlantic Circulation and global Change https://www.ifm.uni-hamburg.de/en/research/projects/race.html TRIATLAS Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management https://triatlas.w.uib.no Bjerknes Centre for Climate Research, Bergen, Norway BCCR http://www.bjerknes.uib.no/ https://ror.org/011n96f14 Federal Ministry of Education and Research BMBF https://www.bmftr.bund.de https://doi.org/10.13039/501100002347 03F0605B Role of the tropical Atlantic for climate variability in the Atlantic sector (RACE I) German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 27542298 Climate - Biogeochemistry Interactions in the Tropical Ocean https://gepris.dfg.de/project/27542298 Horizon 2020 of the European Commission H2020 https://research-and-innovation.ec.europa.eu/funding/funding-opportunities/funding-programmes-and-open-calls/horizon-2020_en https://doi.org/10.13039/501100007601 817578 Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management https://doi.org/10.3030/817578 Seventh Framework Programme of the European Commission FP7 https://doi.org/10.13039/100011102 603521 Enhancing Prediction of Tropical Atlantic Climate and its Impact https://cordis.europa.eu/project/id/603521 25 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CurationLevelB Basic curation https://wiki.pangaea.de/wiki/Curation_levels Equatorial Atlantic Physical oceanographic data geomar author107081 author10713 author20540 author21064 author21200 author28179 author30285 author32921 author36884 author47783 author68930 author91184 award107 award16 award472 award5186 curlevel20 funder20472 funder20473 funder20475 funder20486 geocode1599 geocode1600 geocode1601 inst2010 inst20147 journal16757 license21 project4151 project4277 project4478 project4731 ref111889 ref140760 refds941042 refds963935 term242 term52906 term60657 topotype1