Methoden

Continuous underway sampling of surface ocean

OceanPack and ancillary systems in wet lab

  • Temperature
  • Conductivity
  • pH
  • Turbidity
  • CDOM concentration
  • Chlorophyll a concentration
  • Phycocyanin concentration
  • Photosynthetic activity
  • Plankton counts and optical characterization
  • Irradiance
  • O2 concentration
  • CO2 concentration
  • CO2 isotope ratio
  • Nitrate concentration
  • Particle size distribution
  • Polycyclic aromatic compounds
  • Dissolved Argon
  • Dissolved Oxygen
  • Dissolved Nitrogen

Continuous atmosphere sampling

Aerosol lab (AG Pöhlker)

sampling at 10 m height

  • particle size distribution  10 – 430 nm
  • particle size distribution 0.5 – 20 µm
  • particle size distribution  5 nm–2.5 µm
  • black carbon per aerosol particle
  • black carbon monitor
Filtered particle collection of

  • Bioaerosols
  • Organic geochemistry (together with AG Martinez-Garcia)
  • Trace metals (together with AG Galer)
  • Gaseous organics (together with AG Lammel)


Discrete measurements from deployments at station

Deployables from the rear A-frame and working deck

CTD profiles down to 700 m water depth

  • Salinity
  • Temperature
  • Pressure
  • pH
  • O2 concentration
  • Light extinction
  • Chlorophyll a concentration


Rosette water sampler, 5 bottles @5 liters each, down to 700 m water depth

  • Chlorophyll a concentration
  • Nitrogen isotopes
  • Macronutrients (NO2-,NO3-, PO43- , Si)
  • Photosynthetic activity
  • Flow cytometry, plankton counts per optical group
  • Particulate trace metals (together with AG Galer)
  • Particulate organic geochemistry (together with AG Martinez-Garcia)


McLane high-volume pump

  • Particulate trace metals (AG Galer)
  • Particulate org. geochemistry (AG Martinez-Garcia)

MultiNet, Hydrobios Midi, down to 700 m water depth maximum

  • Mesozooplankton

Bongo Net, Hydrobios, down to 100 m water depth maximum

  • Mesozooplankton
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