Deutsches Ozeanographisches
Datenzentrum
Inventur der Meteor-Reise M87-3B (DOD-Ref-No.20120264)
Inventory of Meteor Cruise M87-3B (DOD-Ref-No.20120264)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Meteor | M87-3B | 12.06.2012 - 25.06.2012 | Baltic Sea |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Jurgens Klaus | Leibniz-Institut fur Ostseeforschung, Warnemunde | Rostock | Rostock |
Ziel der Reise / Objectives of Cruise:
The Baltic Sea with its natural gradients and strong reactions to climate change and anthropogenic activity can be used in an ideal way to examine basic ecological processes and their variability in marine ecosystems. The most striking characteristics of the Baltic Sea are the extended gradients in primary (topography, energy, salinity) and secondary (organisms, matter flux, oxygen, nutrients, sediments) environmental properties as a result of different dynamical processes. Whereas leg M87/3a focussed on the role of the salinity gradients on degradation of terrestrial dissolved organic matter (tDOC), microbially mediated processes, and on the structure and function of pelagic microbial communities, leg M87b investigates the impact of the vertical oxygen gradients in the central Baltic Sea basins on these processes. This comprises the following aims: (1) Assessment of the physical structure and mixing processes within the oxic-anoxic transition zones and of the resulting impact on microbial activities and biogeochemical processes; (2) Characterisation of benthic and pelagic microbial communities along the transition from oxic to anoxic and sulfidic conditions, including protists, prokaryotes and viruses; (3) Analysis of the bottom topography and biogeochemical sediment properties along the deep basins. The overall aim of these studies is to gain insights into the physical-biological coupling and its effects on biogeochemical cycles within the vertical oxygen gradients of the water column as well as a comprehensive understanding of the structure and biogeochemistry of the deep, anoxic basins of the central Baltic Sea. For this purpose, high-resolution sampling of the oxic-anoxic transition zones, assessment of the physical structure and turbulence of the water column, Parasound subbottom profiling and high resolution multi-beam echosounding, and sediment sampling were performed mainly within the Gotland and Landsort basins, along transects from the center to the edges.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IOW | Endler Rudolf | 300 | n miles | B09 Zooplankton |
High resolution multi- beam echosounding | no |
IOW | Endler Rudolf | 40 | cores | B16 Benthic bacteria / micro-organisms |
Sediment cores for analysis of biogeochemistry and microbial diversity | no |
IOW | Umlauf Lars | 74 | casts | D90 Other physical oceanographic measurements |
Microstructure profiling for turbulence measurements | no |
IOW | Umlauf Lars | 80 | n miles | D90 Other physical oceanographic measurements |
Scan fish transect for mapping of water column structure | no |
IOW | Endler Rudolf | 40 | cores | G04 Core-soft bottom (no. of cores) |
Sediment cores for analysis of biogeochemistry and microbial diversity | no |
IOW | Endler Rudolf | 740 | n miles | G73 Single-beam echosounding |
Parasound subbottom profiling (single beam) | no |
IOW | Endler Rudolf | 740 | n miles | G74 Multi-beam echosounding |
Parasound subbottom profiling (single beam) | no |
IOW | Jurgens Klaus | 1 | km | G90 Other geological or geophysical measurements |
Multibeam EM 122, EM 710 | yes |
IOW | Labrenz Matthias | 1 | stations | H00 Stations |
- | yes |
IOW | Wylezich Claudia | 12 | stations | H21 Oxygen |
240 l Sampling of water by large CTD rosette | no |
IOW | Labrenz Matthias | 37 | stations | H21 Oxygen |
65 l Sampling of water by small CTD rosette for high resolution analysis | no |
IOW | Jurgens Klaus | 1 | n miles | H80 Other physical measurements |
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on | yes |
IOW | Wylezich Claudia | 12 | stations | H90 Other chemical oceanographic measurements |
240 l Sampling of water by large CTD rosette | no |
IOW | Labrenz Matthias | 37 | stations | H90 Other chemical oceanographic measurements |
65 l Sampling of water by small CTD rosette for high resolution analysis | no |
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 |
---|---|---|---|---|---|---|
IOW | Umlauf Lars | D71 | Deployed (14.06.12): 1 Mooring with 6 Microcats, 4 Seacats, 8 RBR 1050, 1 ADCP | 57° 1.4' N | 20° 21.0' E | - |
IOW | Umlauf Lars | D71 | Deployed (19.06.12): 1 Mooring with 6 Microcats, 4 Seacats, 8 RBR 1050, 1 ADCP | 58° 19.1' N | 18° 27.9' E | - |
IOW | Umlauf Lars | D71 | Recovered 17.06.2012: 1 Mooring with 6 Microcats, 4 Seacats, 8 RBR 1050, 1 ADCP | 57° 1.4' N | 20° 21.0' E | - |
IOW | Umlauf Lars | D71 | Recovered 23.06.2012: 1 Mooring with 6 Microcats, 4 Seacats, 8 RBR 1050, 1 ADCP | 58° 19.1' N | 18° 27.9' E | - |