POSEIDON POS534

The proposed research cruise relates to the EU project: “Strategies for Environmental Monitoring of Marine Carbon Capture and Storage” STEMM-CCS. Contributions to the main aims of STEMM-CCS:

(1) Develop and test new sensitive and robust subsea monitoring technology, which is indicative for subsea CO2 leakage. New technology: lab-on-a-chip, optodes, membrane inlet mass spectrometry, (multibeam)echosounder quantification.

(2) Tests are conducted under a controlled CO2-release experiment at Goldeneye (Youtube Video)

(3) Porewater geochemistry, benthic flux measurement, pelagic water column monitoring provide data for quantitative interpretation of CO2-induced biogeochemical changes by numerical modelling to improve best practice guides for CCS integrity monitoring.

(4) Hydroacoustic water column imaging and atmospheric CH4 and CO2-measurements above abandoned wells in the North Sea provides statistical sound carbon flux estimates from “leaky wells” into the North Sea and atmosphere.