| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Sonne | SO296-2 MAPUCHE | 21.01.2023 - 21.02.2023 | SE Pacific (Limit 140W) |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Schulz-Vogt Heide | Leibniz-Institut fur Ostseeforschung, Warnemunde | Talcahuano | Bahia San Vicente |
Ziel der Reise / Objectives of Cruise:
This project addresses two central questions: 1. what is the impact of oxygen-depleted to oxygen-free conditions in the water column on biogeochemical cycles. The focus is also on the transformation and degradation of organic matter and the impact of water column anoxia on the affected habitats and food chains, and on biodiversity. An important focus is also the investigation of the oceanographic situation, especially with respect to microturbulence. 2. How was the postglacial development of the Patagonian fjord region. The influence of postglacial changes in the atmospheric and oceanic current regime in the southeastern Pacific on two very different fjord systems was investigated by way of example. In addition, the importance of eustatic sea-level rise as well as regional isostatic uplift and glacier dynamics on the fjord systems was assessed. In total, three working areas were chosen along the Chilean coast: Working Area 1: The coastal upwelling area off Concepcion with seasonal upwelling and anoxia in the water column. Question 1 was addressed there. Working area 2: The Golfo Almirante Montt, an annoxic fjord with a stratified water column, where both questions were investigated. Working area 3: The fjord system Canal Concepcion/Canal Wide/Seno Eyre, where mainly question 2 and the oceanographic situation was investigated.
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 | Jurgens Klaus | 7 | stations | B07 Pelagic bacteria / micro-organisms |
Microbiological sampling (AFIS) | no |
| UDEC | Castillo Cristobal | 540 | n miles | B08 Phytoplankton |
Underway phytoplankton measurements | no |
| IOW | Schulz-Vogt Heide | 11 | hauls | B08 Phytoplankton |
Phytoplankton net | no |
| UDEC | Fernandez Igor | 8 | hauls | B09 Zooplankton |
Multinet | no |
| UDEC | Fernandez Igor | 2 | hauls | B11 Nekton |
MOCNESS net | no |
| IOW | Zettler Michael | 10 | stations | B18 Zoobenthos |
Dredge | no |
| IOW | Zettler Michael | 23 | stations | B18 Zoobenthos |
Van Veen Grab sampling of surface sediments | no |
| IOW | Mohrholz Volker | 900 | n miles | D71 Current profiler (e.g. ADCP) |
Vessel mounted current meter | yes |
| IOW | Mohrholz Volker | 41 | stations | D90 Other physical oceanographic measurements |
Microstructure Profiler | yes |
| IOW | Mohrholz Volker | 200 | n miles | D90 Other physical oceanographic measurements |
Underway measurements with TRiOS radiometer | no |
| IOW | Mohrholz Volker | 900 | n miles | D90 Other physical oceanographic measurements |
Underway measurements with EK80 | yes |
| GFZPO | Arz Helge | 4 | stations | G04 Core-soft bottom (no. of cores) |
Frahm Corer | no |
| IOW | Arz Helge | 17 | cores | G04 Core-soft bottom (no. of cores) |
Gravity Coring | no |
| IOW | Arz Helge | 20 | stations | G04 Core-soft bottom (no. of cores) |
Multi corer sampling | no |
| IOW | Arz Helge | 837 | n miles | G74 Multi-beam echosounding |
Multibeam Echosoundings with Kongsberg EM122 and EM710 | yes |
| IOW | Arz Helge | 837 | n miles | G74 Multi-beam echosounding |
Parametric Sediment Echosoundings with Teledyne Atlas Parasound P70 | yes |
| IOW | Mohrholz Volker | 77 | stations | H00 Stations |
- | yes |
| IOW | Mohrholz Volker | 88 | stations | H10 CTD-Stations |
CTD casts with parameters T, S, Chl a | yes |
| 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 |
| UDEC | Castillo Cristobal | 540 | n miles | H90 Other chemical oceanographic measurements |
Underway measurments of pCO2, pH, temperature, salinity, oxygen | no |
| IOW | Schulz-Vogt Heide | 6 | stations | H90 Other chemical oceanographic measurements |
High resolution Nutrient sampling (Pump-CTD) | yes |
| IOW | Arz Helge | 9 | stations | H90 Other chemical oceanographic measurements |
Surface water pump | 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 | Mohrholz Volker | D05 | Drifting Hydrographic mooring with currentmeter and thermosalinometers | 36° 25.0' S | 73° 26.0' W | - |
| IOW | Mohrholz Volker | H90 | Hydrographic mooring with currentmeter, thermosalinometers, sediment trap | 51° 48.5' S | 72° 49.5' E | - |