Deutsches Ozeanographisches
Datenzentrum Inventur der Poseidon-Reise POS518-2 (DOD-Ref-No.20170049)
Inventory of Poseidon Cruise POS518-2 (DOD-Ref-No.20170049)

Plattform
Platform
Reise-Nr.
Cruise-No.
Zeitraum
Period
Projekt
Project
Arbeitsgebiet
Working area
Poseidon POS518-2 12.10.2017 - 27.10.2017 STEMM-CCS
 
North Sea  

Fahrtleiter
Chief Scientist
Institut
Institute
Auslaufhafen
Port of departure
Einlaufhafen
Port of return
Stationskarte
Station map
Schiffsroute
Trackchart
Linke Peter GEOMAR Helmholtz-Zentrum fur Ozeanforschung Kiel Bremerhaven Kiel   

Ziel der Reise / Objectives of Cruise:

Poseidon cruise 518 (leg 1 and 2) took place in the framework of the Horizon 2020 project STEMM-CCS of the EU. The project's main goal is to develop and test strategies and technologies for the monitoring of subseafloor CO2 storage operations. In this context a small research-scale CO2 gas release experiment is planned for 2019 in the vicinity of the Goldeneye platform located in the British EEZ (central North Sea). Cruise POS518 aimed at collecting necessary oceanographic and biogeochemical baseline data for this release experiment. During Leg 2 three different benthic lander systems were deployed to obtain baseline data of oceanographic and biogeochemical parameters for a small research-scale CO2 gas release experiment planned for 2019. The first lander was equipped with an acoustic Doppler current profiler (ADCP), a CTD and an O2 optode. It was deployed for 6 days close to Goldeneye to obtain high resolution data which can be linked to the long-term measurements of the NOC-Lander. This lander is equipped with a suite of sensors to monitor temperature, conductivity, pressure, current speed and direction, hydro-acoustic, pH, pCO2, O2 and nutrients over a period of about 10 months with popup telemetry units for data transmission via IRIDIUM satellite telemetry every 3 months. Two short-term deployments of the Biogeochemical Observatory (BIGO) were conducted to study the molar ratio between oxygen and CO2-fluxes at the seafloor. Sediment cores obtained by gravity and multi corer were collected for sediment biogeochemical analyses and video-CTD casts were used to study the chemistry of the water column.

Messungen / Measurements

Institut
Institute
Wissenschaftler
Scientist
Anzahl
Number
Einheit
Unit
Typ der Messungen
Type of measurements
Kommentar
Comments
Daten im DOD
Data in DOD
GEOMAH Esposito Mario 6 profiles B06
Dissolved organic matter (e.g. DOC)
water samples for measuremnts of the carbon geochemistry. no
GEOMAH Dale Andrew 2 cores G04
Core-soft bottom (no. of cores)
Multi corer stations . no
GEOMAH Dale Andrew 3 cores G04
Core-soft bottom (no. of cores)
Gravity corer stations for pore water Analysis (see Table 7 in cruise Report). no
GEOMAH Linke Peter 8 deployment H10
CTD-Stations
CTD casts with water samples (Table 4 in cruise Report). no
GEOMAH Sommer Stefan 4 profiles H21
Oxygen
Water sample profiles with Winckler titration. no
GEOMAH Dale Andrew 2 profiles H90
Other chemical oceanographic measurements
water samples for onboard nutrient 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
GEOMAH Esposito Mario G71 NOC-Lander to be recovered during POS527 57° 59.7' N 0° -22.4' E no
GEOMAH Linke Peter G71 SLM-Lander, recovered on 22.10.2017 57° 59.7' N 0° -22.4' E no
GEOMAH Sommer Stefan G71 BIGO Lander, recovered on 18.10.2017 57° 59.7' N 0° -22.3' E no
GEOMAH Sommer Stefan G71 BIGO Lander, recovered on 20.10.2017 57° 59.7' N 0° -22.2' E no
9.11.2019