Plattform Platform	Reise-Nr. Cruise-No.	Zeitraum Period	Projekt Project	Arbeitsgebiet Working area
Maria S. Merian	MSM21-2	25.06.2012 - 24.07.2012		North Atlantic Ocean

Fahrtleiter Chief Scientist	Institut Institute	Auslaufhafen Port of departure	Einlaufhafen Port of return	Stationskarte Station map	Schiffsroute Trackchart
Kieke Dagmar	Institut fur Umweltphysik der Universitat Bremen	Reykjavik	Nuuk (Greenland)

Ziel der Reise / Objectives of Cruise:

The primary objectives of cruise MSM-21/2 are: 1) To exchange two deep-sea mooring arrays installed at the western flank of the Mid-Atlantic Ridge (MAR) as well as in the Deep Western Boundary Current east of Flemish Cap. Both arrays serve to establish time series of the deep water flow and variability, deep water properties, as well as of the strength of the North Atlantic Current (NAC). 2) To retrieve time series from pressure-recording inverted echo sounders (PIES) installed at the MAR and along 47?N via acoustic telemetry. When combined with hydrographic and remote-sensing data, these time series allow to obtain integral transport time series of the strength of the subpolar gyre. 3) To recover a mooring array deployed in the CGFZ in summer 2010 that serves to obtain a better insight into the strength and variability of the westward deep water flow through CGFZ. 4) To deploy a mooring array in Flemish Pass that builds on the pilot array established in summer 2011. Expected data together with shipboard measurements shall provide insight into the strength and variability of the deep water branch passing through Flemish Pass. 5) To assess the variability in the formation and properties of deep water components using hydrographic measurements and anthropogenic tracers like chlorofluorocarbon (CFC).

Messungen / Measurements

Verankerungen / Moorings