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BODC Cruise Metadata Report for FS Poseidon (06PO) cruise PO527

Introduction

This report collates information from the BODC cruise inventory and oceanographic databases. It presents

Cruise Inventory Information

Long name FS Poseidon (06PO) cruise PO527
Short name PO527
Objectives and Narrative Poseidon cruise 527 took place in the framework of the Horizon 2020 project STEMM-CCS of the European Union (EU). The project's main goal is to develop and test strategies and technologies for the monitoring of sub-seafloor CO2 storage operations. In this context, a small research-scale CO2 gas release experiment is planned for May 2019 near the Goldeneye platform located in the British EEZ (central North Sea).
The goal of cruise POS527 was to collect the necessary oceanographic and biogeochemical baseline data prior to this release experiment. The cruise focussed on the region in the direct vicinity of the Goldeneye platform in the North Sea (80 nm northeast of Aberdeen).
During the cruise, CTD casts were undertaken to study the water column chemistry in the study region. In addition, an MPI lander was deployed on a number of occasions for high-precision benthic flux measurements of O2, CO2 and pH in the bottom waters at Goldeneye. Push cores from box cores and gravity cores were collected in the area for sediment biogeochemical analyses. Box coring was also conducted to obtain macrofauna samples for diversity investigations.
Multibeam surveys were conducted at times that no sampling activities were undertaken (mainly evenings and nights) in order to extend our bathymetric coverage of the Goldeneye region. We conducted continuous atmospheric measurements of CH4, CO2, and water partial pressures during the cruise. Benthic oxygen measurements were conducted in selected sediment cores using microelectrodes in order to assess variations in oxygen consumption rates in various contrasting sites in the Goldeneye region. Lab on chip sensors were deployed on CTD casts as well as on the MPI benthic lander.
It was envisaged to retrieve a Develogic benthic lander in the Goldeneye region, then service this lander and redeploy. This lander is equipped with a suite of sensors to monitor temperature, conductivity, pressure, current speed and direction, hydroacoustic, pH, pCO2, O2 and nutrients over a period of about 10 months (since deployment in October 2017 during cruise POS518). Popup telemetry units for data transmission via IRIDIUM satellite telemetry were supposed to be released every 3 months. The pop-up buoys have not properly functioned so far, with only one recently found in a fjord in northern Norway. On our cruise, we were not able to communicate with the lander, and could not retrieve and service it. We now plan to retrieve the lander in May 2019 with the help of a ROV.
Ship FS Poseidon
Departure Port Kiel, Germany
Departure Date 2018-08-15
Arrival Port Kiel, Germany
Arrival Date 2018-09-03
Principal Scientist(s) Eric Pieter Achterberg (GEOMAR Helmholtz Centre for Ocean Research, Kiel (East Shore Campus))
Responsible Organisation GEOMAR Helmholtz Centre for Ocean Research, Kiel (East Shore Campus)
Associated Project(s)
IHB Sea Areas Visited North Sea
Marsden Squares Visited 181;3
Work Area Description Goldeneye Gas Platform
Unable to lookup cruise bounds at this time
Work Area Bounding Polygon
Southern Limit unknown
Northern Limit unknown
Western Limit unknown
Eastern Limit unknown

Cruise Inventory Datasets

No information on datasets is currently available for this cruise

Cruise Inventory Mooring/Buoy Operations

No information on datasets is currently available

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

Summary

# Series Instrument Description Parameters
1 Multi-beam echosounder Bathymetry and Elevation
Horizontal spatial co-ordinates
Reference numbers

Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)

Full List

BODC Reference Instrument Description Date/Time Location  
2027100 Multi-beam echosounder 2018-08-18 07:43Z Click for more

Project Database

No data currently held for this cruise in the BODC Project Database

References

Track Charts

No track charts currently available

Reports

Cruise Report