Atlantic meridional overturning circulation observed by the RAPID-MOCHA-WBTS array at 26°N from 2004 to 2023 dataset https://portal.medin.org.uk/portal/start.php?tpc=006_a118be306d285b489ea7a03311213925 The RAPID-MOCHA-WBTS dataset comprises measurements of current velocity, temperature, salinity and pressure. Oceanic volume and heat transports are calculated from these variables, in both depth and density space, resulting in continuous measurements of the Atlantic Meridional Overturning Circulation (AMOC). Data collection is obtained from a mooring array across 26.5N in the Atlantic Ocean and cable measurements across the Florida Straits. The measurement array extends from the Bahamas to the African coast. The data have been measured continuously between April 2004 and February 2023. The data are collected periodically (currently every 30 months) from various UK and USA research cruises. Measurements between the Bahamas and Africa were made using a variety of MicroCat CTD sensors, various current meters and ADCP. An undersea cable makes current velocity measurements across the Florida Straits. The RAPID-MOCHA-WBTS programme aims to deliver a multi-decadal time series of observations of AMOC. The observations will be used with data from other sources to determine and interpret recent changes in the AMOC, to assess the risk of rapid climate change due to changes in the MOC, and to investigate the potential for predicting the MOC and its impacts on climate. The RAPID-MOCHA-WBTS programme is a joint effort between NERC in the UK (the UK Principal Investigator (PI) is Ben Moat), and the National Science Foundation (NSF) with support from NOAA (PIs Ryan Smith and Denis Volkov) and RSMAS (PIs Prof. Bill Johns and Prof. Shane Elipot) in the USA. The Atlantic MOC transport (and its components), calculated from the above data, and gridded files of temperature and salinity are held by BODC in NetCDF format. 20171003 20250424