| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Maria S. Merian | MSM83 | 17.05.2019 - 15.06.2019 | 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 | Las Palmas | St. John`s |
Ziel der Reise / Objectives of Cruise:
Physical oceanographic measurements conducted during cruise MSM-83 were funded by the German Research Foundation (DFG) and focused on collecting physical-oceanographic data along the geographic latitude of ~47?/48?N as well as along a survey line located on the western flank of the Mid-Atlantic Ridge. Scientific tools comprised vertical profiling of the entire water column using two lowered Acoustic Doppler Current Profilers (LADCP) and a Conductivity-Temperature-Depth-Oxygen (CTDO) unit, all attached to a carousel water sampler. Water sampling activities consisted of taking oxygen and salinity samples for the sake of conductivity-/oxygen-sensor calibration as well as taking samples for the analysis of anthropogenic trace gases (chlorofluorocarbon-12, CFC-12; sulphurhexafluoride, SF6). Furthermore, a limited number of water samples were taken for a home-based analysis of oceanic concentrations of argon-39 and tritium. Hydrographic station work was complemented by the recovery and redeployment of deep-sea moorings located at the eastern and western continental margins of the North Atlantic (Goban Spur at the Irish shelf break; eastern flank of Flemish Cap; Flemish Pass). Several inverted echo-sounders carrying pressure sensors (PIES) were installed along 47?/48?N as well as near the western exit of the Charlie-Gibbs Fracture Zone near 52?30'N. Respective station work was related to data retrieval via acoustic telemetry, instrument recovery, and occasional redeployment of the devices. The deep-sea moorings and the PIES form the oceanic long-term observatory NOAC ("North Atlantic Changes").
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| IUPHB | Kieke Dagmar | 1 | n miles | D71 Current profiler (e.g. ADCP) |
38 + 75 kHz ADCP | yes |
| IUPHB | Kieke Dagmar | 30 | day(s) | D71 Current profiler (e.g. ADCP) |
vessel-mounted ADCP, TRDI Ocean Surveyor, 75 kHz and 38 kHz. | no |
| IUPHB | Kieke Dagmar | 104 | profiles | D71 Current profiler (e.g. ADCP) |
2 x TRDI-WorkHorse lowered ADCPs, 300 kHz. | no |
| IUHB | Rhein Monika | 1 | km | G90 Other geological or geophysical measurements |
EM122. | no |
| IUPHB | Kieke Dagmar | 107 | stations | H00 Stations |
- | yes |
| IUPHB | Kieke Dagmar | 104 | profiles | H10 CTD-Stations |
CTDO profiles, SBE-911plus (sample analysis for calibration of conductivity and oxygen). | no |
| IUPHB | Kieke Dagmar | 30 | day(s) | H71 Surface measurements underway (T, S) |
thermosalinograph. | no |
| UNI-HD | Kersting Arne | 6 | profiles | H73 Geochemical tracers (e.g. freons) |
water samples for home lab analysis of noble gases (argon-39). | no |
| IUPHB | Kieke Dagmar | 73 | profiles | H73 Geochemical tracers (e.g. freons) |
water samples for analysis of anthropogenic tracers (SF6/CFC-12). | no |
| IUHB | Rhein Monika | 6 | profiles | H73 Geochemical tracers (e.g. freons) |
water samples for home lab analysis of tritium. | no |
| IUPHB | Kieke Dagmar | 1 | n miles | H80 Other physical measurements |
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on | yes |
Verankerungen / Moorings
| Institut Institute |
Wissenschaftler Scientist |
Typ der Messungen Type of measurements |
Kommentar Comments |
geogr.Breite Latitude |
geogr.Länge Longitude |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| BSH | Klein Birgit | D01 | mooring EB-3/3, recovered | 48° 50.0' N | 13° 26.0' W | no |
| BSH | Klein Birgit | D01 | mooring EB-3/4, deployed | 48° 50.0' N | 13° 26.0' W | no |
| IUPHB | Kieke Dagmar | D01 | mooring BM-25/6, recovered | 47° 7.1' N | 47° 6.4' W | no |
| IUHB | Rhein Monika | D01 | mooring BM-22/10, deployed | 47° 6.2' N | 43° 13.4' W | no |
| IUHB | Rhein Monika | D01 | mooring BM-22/9, recovered | 47° 6.2' N | 43° 13.4' W | no |
| IUHB | Rhein Monika | D01 | mooring EB-1/3, recovered | 49° 0.0' N | 12° 37.1' W | no |
| IUHB | Rhein Monika | D01 | mooring EB-1/4, deployed | 49° 0.0' N | 12° 37.0' W | no |
| BSH | Klein Birgit | D06 | Argo float deployment, WMO 7900523 | 48° 31.1' N | 15° 0.4' W | no |
| BSH | Klein Birgit | D06 | Argo float deployment, WMO 7900524 | 47° 57.5' N | 26° 20.3' W | no |
| BSH | Klein Birgit | D06 | Argo float deployment, WMO 7900525 | 48° 3.2' N | 31° 35.1' W | no |
| BSH | Klein Birgit | D06 | Argo float deployment, WMO 7900526 | 47° 27.3' N | 34° 0.0' W | no |
| BSH | Klein Birgit | D06 | Argo float deployment, WMO 7900527 | 47° 6.1' N | 40° 53.0' W | no |
| BSH | Klein Birgit | D06 | Argo float deployment, WMO 7900528 | 47° 5.3' N | 42° 35.4' W | no |
| BSH | Klein Birgit | D06 | Argo float deployment, WMO 7900529 | 47° 15.1' N | 37° 56.7' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-12/6, telemetry | 47° 39.8' N | 31° 8.9' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-15/4, telemetry and recovery | 52° 30.5' N | 36° 51.9' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-27/4, telemetry | 47° 6.1' N | 40° 53.0' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-28/4, telemetry | 47° 10.2' N | 39° 28.7' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-30/2, telemetry | 47° 18.1' N | 37° 21.7' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-31/3, telemetry and recovery not possible, instrument lost | 47° 5.2' N | 42° 0.8' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-31/4, deployment | 47° 5.9' N | 42° 1.0' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-32/3, telemetry | 48° 31.1' N | 15° 0.1' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-33/2, telemetry and recovery | 48° 18.7' N | 19° 31.3' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-33/3, deployment | 48° 18.7' N | 19° 31.3' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-34/2, telemetry and recovery | 48° 6.7' N | 23° 25.2' W | no |
| IUHB | Rhein Monika | D09 | inverted echo-sounder, PIES BP-34/3, deployment | 48° 6.7' N | 23° 25.2' W | no |