000K utf8 1100 $c2004 1500 eng 2050 urn:nbn:de:gbv:8-diss-12282 3000 Kanzow, Torsten 4000 Monitoring the integrated deep meridional flow in the tropical North Atlantic$hChristian-Albrechts-Universität zu Kiel [Kanzow, Torsten] 4030 Kiel$nChristian-Albrechts-Universität zu Kiel 4209 The Atlantic meridional overturning circulation (MOC) is thought to have strong impact on climate.Here results from a pilot project to monitor fluctuations of the MOC in the tropical North Atlantic are presented. The backbone of the experiment design is an end point measurement method. One main aspect of this study comprises a technical performance assessment of the different measurement components (density,bottom pressure,current velocities) of the moored array. For the interpretation of the observed mean and time variable volume transports, comparisons to independent observational data and numerical model output have been carried out and spectral analysis as well as basic theoretical aspects of fluid dynamics have been applied. Rossby waves represent a major source of noise, which may mask the MOC signal. A verification of the experiment design using model simulations attest the transport signal observed to be moderately representative for MOC and meridional heat transport fluctuations. An eastward extension of the array into the eastern trough might lead to a drastic increase in the signal-to-noise ratio. 4950 https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-12282$xR$3Volltext$534 4961 https://macau.uni-kiel.de/receive/diss_mods_00001228 5051 550 5550 Atlantischer Ozean <Nord> 5550 bottom pressure 5550 deep ocean 5550 density 5550 end point measurement technique 5550 Meeresströmung 5550 Meridional Overturing Circulation 5550 Meridionalzirkulation 5550 monitoring 5550 ocean currents 5550 Variabilität