• Acidification of the Nordic Seas 

      Fransner, Sara Filippa Krusmynta; Fröb, Friederike; Tjiputra, Jerry; Goris, Nadine; Lauvset, Siv Kari; Skjelvan, Ingunn; Jeansson, Emil; Omar, Abdirahman; Chierici, Melissa; Jones, Elizabeth Marie; Fransson, Agneta; Ólafsdóttir, Sólveig R.; Johannessen, Truls; Olsen, Are (Journal article; Peer reviewed, 2022)
      Due to low calcium carbonate saturation states, and winter mixing that brings anthropogenic carbon to the deep ocean, the Nordic Seas and their cold-water corals are vulnerable to ocean acidification. Here, we present a ...
    • Assuring the integrity of offshore carbon dioxide storage 

      Connelly, D.P.; Bull, J.M.; Flohr, A.; Schaap, A.; Koopmans, D.; Blackford, J.C.; White, P.R.; James, R.H.; Pearce, C.; Lichtschlag, A.; Achterberg, E.P.; de Beer, D; Roche, B.; Li, J.; Saw, K.; Alendal, Guttorm; Avlesen, Helge; Brown, R.; Borisov, S.M.; Böttner, C.; Cazenave, P.W.; Chen, B.; Dale, A.W.; Dean, M.; Dewar, M.; Esposito, M.; Gros, J.; Hanz, R.; Haeckel, M.; Hosking, B.; Huvenne, V.; Karstens, Jens; Le Bas, T.; Leighton, T.G.; Linke, P.; Loucaides, S.; Matter, J.M.; Monk, S.; Mowlem, M.C.; Oleynik, Anna; Omar, Abdirahman; Peel, K.; Provenzano, G.; Saleem, U.; Schmidt, M.; Schramm, B.; Sommer, S.; Strong, J.; Suarez, I. Falcon; Ungerboeck, B.; Widdicombe, S.; Wright, H.; Yakushev, Evgeniy (Journal article; Peer reviewed, 2022)
      Carbon capture and storage is a key mitigation strategy proposed for keeping the global temperature rise below 1.5 °C. Offshore storage can provide up to 13% of the global CO2 reduction required to achieve the Intergovernmental ...
    • Detection and quantification of CO2 seepage in seawater using the stoichiometric Cseep method: Results from a recent subsea CO2 release experiment in the North Sea 

      Omar, Abdirahman; García-Ibáñez, Maribel I.; Schaap, Allison; Oleynik, Anna; Esposito, Mario; Jeansson, Emil; Loucaides, Socratis; Thomas, Helmuth; Alendal, Guttorm (Journal article; Peer reviewed, 2021)
      Carbon Capture and Storage (CCS) is a potential significant mitigation strategy to combat climate change and ocean acidification. The technology is well understood but its current implementation must be scaled up nearly ...
    • The northern European shelf as an increasing net sink for CO2 

      Becker, Meike; Olsen, Are; Landschützer, Peter; Omar, Abdirahman; Rehder, Gregor; Rödenbeck, Christian; Skjelvan, Ingunn (Journal article; Peer reviewed, 2021)
      We developed a simple method to refine existing open-ocean maps and extend them towards different coastal seas. Using a multi-linear regression we produced monthly maps of surface ocean fCO2 in the northern European coastal ...
    • Optimal sensors placement for detecting CO2 discharges from unknown locations on the seafloor 

      Oleynik, Anna; García-Ibáñez, Maribel I.; Blaser, Nello; Omar, Abdirahman; Alendal, Guttorm (Journal article; Peer reviewed, 2020-04)
      Assurance monitoring of the marine environment is a required and intrinsic part of CO2 storage project. To reduce the costs related to the monitoring effort, the monitoring program must be designed with optimal use of ...
    • Rapid fCO2 rise in the northern Barents Sea and Nansen Basin 

      Ericson, Ylva; Fransson, Agneta; Chierici, Melissa; Jones, Elizabeth Marie; Skjelvan, Ingunn; Omar, Abdirahman; Olsen, Are; Becker, Meike (Journal article; Peer reviewed, 2023)
      Maps of surface water fugacity of CO2 (fCO2) over eastern Fram Strait, south-western Nansen Basin, and the north-western Barents Sea (73–84°N, 5–46°E) from September 1997 to December 2020 were made and used to investigate ...
    • Report on regulations and technological capabilities for monitoring CO2 storage sites 

      Schütz, Sigrid Eskeland; Omar, Abdirahman (Research report, 2023-04)
    • Sea surface pCO2 variability and air-sea CO2 exchange in the coastal Sudanese Red Sea 

      Ali, Elsheikh B.; Skjelvan, Ingunn; Omar, Abdirahman; Olsen, Are; De Lange, Tor; Johannessen, Truls; Elageed, Salma (Journal article; Peer reviewed, 2021)
      The dynamics of sea surface pCO2 (pCO2w) and air–sea CO2 exchange of the Sudanese coastal Red Sea has for the first time been studied over a full annual cycle (October 2014–October 2015) based on semi-continuous measurements ...