| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Sonne1 | 191-2 | 03.02.2007 - 25.02.2007 | COMET |
SW Pacific (Limit 140W) |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Linke, P. Peter | Leibniz-Institut fur Meereswissenschaften an der Universitat Kiel | Wellington | Napier |
Ziel der Reise / Objectives of Cruise:
Investigations of SONNE cruise 191 leg 2 were mainly embedded in the scientific rationale of the collaborative research programme COMET, which aims at the investigation and detailed study of methane in the global geo-/biosystem at different cold vent systems and associated gas hydrates. The working area was the Hikurangi accretionary complex along the east coast of New Zealand's northern island . COMET(Controls on methane fluxes and their climatic relevance in marine gas hydrate-bearing environments) addresses the complex physico-chemical and biogeochemical control parameters on marine methane fluxes and turnover rates from gas hydrate-bearing sediments into the water column and the atmosphere. This is pursued by deploying innovative technologies such as integrative long-term observatories and experimental in-situ platforms that investigate the filter function of organisms in the sediment, the sediment boundary layer and the water column. Methane-derived carbonates serve as natural geo-archives where past environmental conditions can be reconstructed by the application of refined paleo-proxies. SO191-2 was a multidisciplinary cruise addressing biological, microbiological, biogeochemical, geological and hydrographical objectives. Main objectives were the measurement of benthic boundary layer bio-geochemical fluxes, fluid and gas flows and investigations of specific ecosystems such as anoxic chemosynthetically based sediment communities.
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| IFMGEO | Haeckel Mathias | 18 | stations | B16 Benthic bacteria / micro-organisms |
Porewater geochemistry, microbes and meiofauna, sediment profiles (Multicorer samples) | no |
| IFMGEO | Linke, P. Peter | 19 | stations | B18 Zoobenthos |
Ocean Floor Observation System surveys, track lines (video films, sea floor still photos) | no |
| IFMGEO | Liebetrau V. | 10 | stations | G03 Core-rock (no. of cores) |
TV-Grab, rock and sediment samples, isotope geochemistry | no |
| IFMGEO | Haeckel Mathias | 16 | stations | G04 Core-soft bottom (no. of cores) |
Ggravity corer (3-5m), pore water geochemistry, microbes, paleo-oceanography | no |
| IFMGEO | Linke, P. Peter | 19 | stations | G08 Bottom photography |
Ocean Floor Observation System surveys, track lines (video films, sea floor still photos) | no |
| IFMGEO | Linke, P. Peter | 10 | stations | G71 In-situ sea floor measurements |
Bottom Lander deployments, benthic boundary layer physics, biogechem. activity, gas flux. | no |
| IFMGEO | Weinrebe Reimer Wilhelm | 4 | stations | G72 Geophysical measurements made at depth (below near surface and above seafloor) |
Side-scan sonar track lines | no |
| RCMGGE | Greinert Jens | 4 | stations | G74 Multi-beam echosounding |
Several track lines per station | yes |
| IFMGEO | Haeckel Mathias | 18 | stations | G90 Other geological or geophysical measurements |
Porewater geochemistry, microbes and meiofauna, sediment profiles (Multicorer samples) | no |
| IFMGEO | Linke, P. Peter | 38 | stations | H10 CTD-Stations |
CTD/Rosette water sampler profiles | no |
| IFMGEO | Liebetrau V. | 10 | stations | H32 Isotopes |
TV-Grab, rock and sediment samples, isotope geochemistry | no |
| IFMGEO | Linke, P. Peter | - | cont. | H80 Other physical measurements |
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on | yes |
| IFMGEO | Linke, P. Peter | 38 | stations | H90 Other chemical oceanographic measurements |
CTD/Rosette water sampler profiles | 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 |
|---|---|---|---|---|---|---|
| IFMGEO | Linke, P. Peter | H72 | Thermistor mooring deployed on 11.02.07, recovered on 13.02.07 | 40° 2.2' S | 177° 49.3' E | - |
| IFMGEO | Linke, P. Peter | H72 | Thermistor mooring deployed on 17.02.07, recovered on 21.02.07 | 41° 43.7' S | 175° 27.7' E | - |
| IFMGEO | Linke, P. Peter | H72 | Thermistor mooring deployed on 18.02.07, recovered on 21.02.07 | 41° 43.3' S | 175° 27.1' E | - |
| IFMGEO | Linke, P. Peter | H72 | Thermistor mooring deployed on 23.02.07, recovered on 8.03.07 | 40° 3.3' S | 177° 49.2' E | - |
| IFMGEO | Linke, P. Peter | H72 | Thermistor mooring deployed on 23.02.07, recovered on 8.03.07 | 40° 2.7' S | 177° 49.9' E | - |