Deutsches Ozeanographisches
Datenzentrum
Inventur der Maria S. Merian-Reise MSM118 (DOD-Ref-No.20230007)
Inventory of Maria S. Merian Cruise MSM118 (DOD-Ref-No.20230007)
| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Maria S. Merian | MSM118 | 18.06.2023 - 04.07.2023 | North Atlantic Ocean |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Schneider Ralph | Institut fur Geowissenschaften - Abteilung Geologie | Ponta Delgada | St. John`s |
Ziel der Reise / Objectives of Cruise:
The warm Gulf Stream and the cold Labrador Current meet in the Northwest Atlantic off Nova Scotia, which leads to the formation of nutrient rich slope waters. Expedition MSM118 NOVAMAR 2 collected water and sediment samples to provide important data for the reconstruction of changes of surface and deeper water masses at the convergence of the cold and warm spheres. The sampling of water column, water-sediment interface and subsurface sediments will provide new information on climate variability of the past 25.000 years, related biogeochemical cycling and changes in the nutrient budget. In this context, element fluxes between the water-column and underlying sediments and fluid and/or gas leakages were of interest. Suitable locations for geological sampling of Holocene sediment sequences were identified by detailed sediment acoustic surveys along the shelf and upper slope of south-eastern Canada. The cruise is part of a bilateral collaboration in marine science between Dalhousie and Kiel Universities and GEOMAR Helmholtz Centre for Ocean Research Kiel.
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| BRIRE | Briese Schifffahrts GmbH & Co. WTD | 1 | n miles | D71 Current profiler (e.g. ADCP) |
VMADCP38+75 kHz | yes |
| CAUKI | Schneider Ralph | 12 | stations | G04 Core-soft bottom (no. of cores) |
Multicorer and Gravity corer deployments, Holocene soft sediments, shell and upper slope | no |
| GEOMAH | Scholz Florian | 12 | stations | G71 In-situ sea floor measurements |
Biogeochemical measurements sediment water interface, elemental fluxes for nitrite, nitrate, silicate, phosphate, alkalinity, oxygen | no |
| IFGKI | Barrett Rachel | 6 | profiles | G74 Multi-beam echosounding |
EM122 and Sedimentechosounder PARASOUND surveys for selection of geological sampling stations | yes |
| DALHOU | Kienast Markus | 24 | stations | H00 Stations |
- | yes |
| DALHOU | Kienast Markus | 15 | stations | H09 Water bottle stations |
Water sampling for nutrients and isotope chemistry | no |
| DALHOU | Kienast Markus | 15 | stations | H10 CTD-Stations |
CTD Profiling, characterization of water masses | no |
| BRIRE | Briese Schifffahrts GmbH & Co. WTD | 1 | n miles | H80 Other physical measurements |
Underway measurements udring the whole trip such as coordinates, depth, meteorological parameter and so on | yes |