1 X _ Introduction This volume is a graphical and statistical presentation of moored current measurements carried out jointly by the Bundesamt für Seeschiffahrt und Hydrographie (BSH) and the Institut für Meereskunde (IFM) in Hamburg. The data are part of the German contribution to the World Ocean Circulation Experiment (WOCE). They cover the period 1991 to 1995. The mooring locations (see map) are in line with the WOCE-Hydrographic section Al/E, which was repeated four times during the mooring period. The mooring design was according to the institutions deep ocean standard, all current meters were Aanderaa ROM 4/5 or 7/8, sampling interval was one hour. The moorings were replaced annu ally. Four moorings were lost completely (Dl, El, D2, and F3). Acknowledgements This work would have not been possible without the skilled assistence of U. Drübbisch, H. Giese, H. May, and H. Wüllner in the field work and M. Nesemann in the data analysis. This is also true for the experienced help we found from crews of R/V's 'Meteor', 'Valdivia', and 'Walther Herwig' during the deployment and recovery operations. Supporting funds were available from the Bundesministerium für Forschung and Technologie under grants 03F0121B (BSH) and 03F0121A (IFM) and from the Deutsche For schungsgemeinschaft for financing the ship-time for R/V 'Mete or' . Hamburg, December 1995 Dr. Ekkehard Mittelstaedt Bundesamt für Seeschiffahrt und Hydrographie Prof. Dr. Jens Meincke Institut für Meereskunde