Deutsches Ozeanographisches
Datenzentrum Inventur der Sonne-Reise SO245 UltraPac (DOD-Ref-No.20160006)
Inventory of Sonne Cruise SO245 UltraPac (DOD-Ref-No.20160006)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Sonne SO245 UltraPac 23.12.2015 - 28.01.2016 GEOTRACES
 
South Pacific Ocean  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Ferdelman Timothy Max-Planck-Institut, Marine Mikrobiologie, Biogeochemie Antofagasta Wellington   

Ziel der Reise / Objectives of Cruise:

Due to its extreme remoteness from any continents, the surface waters of the South Pacific Subtropical Gyre (SPG) are the most oligotrophic in the global ocean, with the clearest waters and lowest sea surface chlorophyll a concentrations. Recent studies indicate that microbial nutrient and carbon cycling is especially adapted for these ultraoligotrophic waters, and SPG may be a significant region of nitrogen fixation. We conducted a cross-gyre transect to investigate the controls on nitrogen, phosphorus and organic carbon cycling, trace element isotope geochemistry, and microbioal ecology in the water column and surface seidments at 7 main stations, and 8 intermediate stations. The transect proceeded east to west over three sections: a) 25?30' S along the northern side of the gyre from 84?33'W to 110?00'W, b) southwest to 39?S 140?W though the heart of the gyre, and c) further westward along 39?S to 170?W where we linked up with GeoTraces station GR11. Sampling included extensive CTD-Nisken bottle sampling casts throughout the water column, in situ pump deployments at all main stations, plankton net sampling, high resolution pumpcast sampling of the surface 200 meters, and box and gravity cores of the sediments. A special focus of the expedition was on process studies, using radio-labeled and stable isotope tracer experiments to experimentally examine biogeochemical and microbiological processes. Bacterial cell counts, identification of cells with high throughput fluorescent in situ hybridization (FISH), and onboard 16S rDNA tag sequencing was done at near to real-time pace. Anthropogenic nutrient loading continues to impact sub-tropical gyres and the South Pacific Gyre may be the last, pristine gyre system in the world ocean, where ultra-oligotrophic (microbial) community function might be studied. UltraPac will provide baseline data on the chemical and microbiological structure and function of this vast, but rarely studied ecosystem.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
MPIMHB Mohr Wiebke 11 hauls B01
Primary productivity
Micronet. no
MPIMHB Mohr Wiebke 74 stations B01
Primary productivity
CTD, water samples,N2 fixiation/P uptake. no
MPIMHB Lavik Gaute 12 stations B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
Pumpcast CTD, water samples, Chlorphyll a. no
MPIMHB Mohr Wiebke 12 stations B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
Pumpcast CTD, water samples, Chlorphyll a. no
MPIMHB Mohr Wiebke 74 stations B02
Phytoplankton pigments (e.g. chlorophyll, fluorescence)
CTD, water samples, Chlorphyll a. no
NUIDO Croot Peter 74 stations B06
Dissolved organic matter (e.g. DOC)
CTD, water samples,DOM/CDOM. no
ICBM Dittmar Thorsten 12 stations B06
Dissolved organic matter (e.g. DOC)
Pumpcast CTD, water samples,DOM/CDOM. no
ICBM Dittmar Thorsten 74 stations B06
Dissolved organic matter (e.g. DOC)
CTD, water samples,DOM/CDOM. no
MPIMHB Fuchs Bernhard M. 64 deployment B07
Pelagic bacteria / micro-organisms
In Situ Pumps, molecular ecology. no
MPIMHB Fuchs Bernhard M. 74 stations B07
Pelagic bacteria / micro-organisms
CTD, water samples, Fluorescent in situ Hybridized cells. no
MPIMHB Fuchs Bernhard M. 74 stations B07
Pelagic bacteria / micro-organisms
CTD, water samples, flow cytometry sorting of cells. no
MPIMHB Fuchs Bernhard M. 74 stations B07
Pelagic bacteria / micro-organisms
CTD, water samples,DNA. no
MPIMHB Fuchs Bernhard M. 10371 km B07
Pelagic bacteria / micro-organisms
Underway, bacterial counts. no
SOCWC Zubkov Mike 74 stations B07
Pelagic bacteria / micro-organisms
CTD, water samples, flow cytometry sorting of cells. no
SOCWC Zubkov Mike 74 stations B07
Pelagic bacteria / micro-organisms
CTD, water samples,DNA. no
SOCWC Zubkov Mike 10371 km B07
Pelagic bacteria / micro-organisms
Underway, bacterial counts. no
NUIDO Croot Peter 22 stations B07
Pelagic bacteria / micro-organisms
Go Flo. no
SOCWC Zubkov Mike 11 hauls B08
Phytoplankton
Micronet. no
SOCWC Zubkov Mike 74 stations B08
Phytoplankton
CTD, water samples,picoeukaryotes. no
MPIMHB Mohr Wiebke 11 hauls B08
Phytoplankton
Micronet. no
SOCWC Zubkov Mike 11 hauls B09
Zooplankton
Micronet. no
SOCWC Zubkov Mike 74 stations B09
Zooplankton
CTD, water samples,picoeukaryotes. no
PUCC Thiel Martin 8 cores B18
Zoobenthos
Box Core, macrofauna. no
PUCC Thiel Martin 10371 km B25
Birds
Underway, bird observations. no
UOLD Zielinski Oliver 14 deployment D01
Current meters
Secchi Disk. no
MPIMHB Ehlert Claudia 8 cores G04
Core-soft bottom (no. of cores)
Gravity core (geochronology). no
ICBM Pahnke Katharina 8 cores G04
Core-soft bottom (no. of cores)
Gravity core (geochronology). no
MPIHB Ferdelman Timothy 8 cores G04
Core-soft bottom (no. of cores)
Box core, Porewater (chemical analysis of sediments). no
MPIMHB Ehlert Claudia 8 cores G27
Gravity measurements
Gravity core (chemical analysis of sediments). no
ICBM Pahnke Katharina 8 cores G27
Gravity measurements
Gravity core (chemical analysis of sediments). no
MPIHB Ferdelman Timothy 296 km G72
Geophysical measurements made at depth (below near surface and above seafloor)
Station Parasound Profile. no
MPIHB Ferdelman Timothy 296 km G75
Single channel seismic reflection
Station Parasound Profile. no
MPIMHB Ehlert Claudia 8 cores G90
Other geological or geophysical measurements
Box Core, Archive. no
MPIMHB Ehlert Claudia 8 cores G90
Other geological or geophysical measurements
Box Core, surface samples. no
ICBM Pahnke Katharina 8 cores G90
Other geological or geophysical measurements
Box Core, Archive. no
ICBM Pahnke Katharina 8 cores G90
Other geological or geophysical measurements
Box Core, surface samples. no
LDEO Anderson Robert 8 cores G90
Other geological or geophysical measurements
Box Core, Archive. no
MPIHB Ferdelman Timothy 1 n miles G90
Other geological or geophysical measurements
EM 122, ADCP38+75, Parasound yes
MPIHB Ferdelman Timothy 8 cores G90
Other geological or geophysical measurements
Box Core, surface samples. no
MPIHB Ferdelman Timothy 10371 km G90
Other geological or geophysical measurements
Underway, dust sampling. no
MPIHB Ferdelman Timothy 184 stations H00
Stations
- yes
MPIMHB Lavik Gaute 12 stations H10
CTD-Stations
Pumpcast CTD, online temperature, salinity & fluorescence. no
UOLD Zielinski Oliver 74 stations H10
CTD-Stations
CTD, water samples,Salintiy. no
UOLD Zielinski Oliver 10371 km H10
CTD-Stations
Underway salinity, temperature, fluroscence. no
UOLD Zielinski Oliver 15 profiles H17
Optics (e.g. underwater light levels)
Optical Profiler. no
UOLD Zielinski Oliver 15 profiles H17
Optics (e.g. underwater light levels)
UV Profiler. no
MPIMHB Lavik Gaute 12 stations H21
Oxygen
Pumpcast CTD, online gas measurements. no
MPIMHB Lavik Gaute 12 stations H22
Phosphates
Pumpcast CTD, water samples, nutrients. no
MPIMHB Lavik Gaute 74 stations H22
Phosphates
CTD, water samples, nutrients. no
MPIHB Ferdelman Timothy 8 cores H22
Phosphates
Box core, Porewater. no
MPIMHB Lavik Gaute 12 stations H23
Total - P
Pumpcast CTD, water samples, nutrients. no
MPIMHB Lavik Gaute 74 stations H23
Total - P
CTD, water samples, nutrients. no
MPIHB Ferdelman Timothy 8 cores H23
Total - P
Box core, Porewater. no
MPIMHB Lavik Gaute 12 stations H24
Nitrates
Pumpcast CTD, water samples, nutrients. no
MPIMHB Lavik Gaute 74 stations H24
Nitrates
CTD, water samples, nutrients. no
MPIHB Ferdelman Timothy 8 cores H24
Nitrates
Box core, Porewater. no
MPIMHB Lavik Gaute 12 stations H25
Nitrites
Pumpcast CTD, water samples, nutrients. no
MPIMHB Lavik Gaute 74 stations H25
Nitrites
CTD, water samples, nutrients. no
MPIHB Ferdelman Timothy 8 cores H25
Nitrites
Box core, Porewater. no
MPIMHB Lavik Gaute 12 stations H26
Silicates
Pumpcast CTD, water samples, nutrients. no
MPIMHB Lavik Gaute 74 stations H26
Silicates
CTD, water samples, nutrients. no
MPIHB Ferdelman Timothy 8 cores H26
Silicates
Box core, Porewater. no
MPIMHB Ehlert Claudia 8 cores H30
Trace elements
Box Core, Rare earth elements. no
MPIMHB Ehlert Claudia 64 deployment H30
Trace elements
In Situ Pumps, rare earth element isotopes. no
MPIMHB Ehlert Claudia 74 stations H30
Trace elements
CTD, water samples, Nd isotopes/ Rare Earth Elements. no
MPIMHB Ehlert Claudia 74 stations H30
Trace elements
CTD, water samples, trace elements. no
ICBM Pahnke Katharina 8 cores H30
Trace elements
Box Core, Rare earth elements. no
ICBM Pahnke Katharina 64 deployment H30
Trace elements
In Situ Pumps, rare earth element isotopes. no
ICBM Pahnke Katharina 74 stations H30
Trace elements
CTD, water samples, Nd isotopes/ Rare Earth Elements. no
ICBM Pahnke Katharina 74 stations H30
Trace elements
CTD, water samples, trace elements. no
NUIDO Croot Peter 12 stations H30
Trace elements
Pumpcast CTD, water samples, trace elements. no
NUIDO Croot Peter 74 stations H30
Trace elements
CTD, water samples, trace elements. no
LDEO Anderson Robert 8 cores H30
Trace elements
Box Core, U-Th. no
LDEO Anderson Robert 64 deployment H30
Trace elements
CTD, water samples, U-Th isotopes. no
MPIMHB Lavik Gaute 12 stations H33
Other dissolved gases
Pumpcast CTD, online gas measurements. no
LDEO Anderson Robert 74 stations H33
Other dissolved gases
CTD, water samples, He. no
MPIMHB Lavik Gaute 12 stations H76
Ammonia
Pumpcast CTD, water samples, nutrients. no
MPIMHB Lavik Gaute 74 stations H76
Ammonia
CTD, water samples, nutrients. no
MPIHB Ferdelman Timothy 8 cores H76
Ammonia
Box core, Porewater. no
MPIHB Ferdelman Timothy 1 n miles H80
Other physical measurements
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on yes
MPIMHB Ehlert Claudia 74 stations H90
Other chemical oceanographic measurements
CTD, water samples, Si isotopes. no
ICBM Pahnke Katharina 74 samples H90
Other chemical oceanographic measurements
CTD, water samples, Si isotopes. no
NUIDO Croot Peter 12 stations H90
Other chemical oceanographic measurements
Pumpcast CTD, water samples, reactive intermediates. no
NUIDO Croot Peter 74 stations H90
Other chemical oceanographic measurements
CTD, water samples, reactive intermediates. no
MPIHB Ferdelman Timothy 74 stations H90
Other chemical oceanographic measurements
CTD, water samples, DIC isotopes/H2O isotopes. no
NUIDO Croot Peter 12 stations P01
Suspended matter
Pumpcast CTD, microplasitics. no
NUIDO Croot Peter 10371 km P01
Suspended matter
Underway, microplastics. no
16.11.2019