Vitenskapelig artikkel

• Elageed, Salma; Omar, Abdirahman; Jeansson, Emil et al. (2025). Organic Carbon Remineralization and Calcium Carbonate Production Rates in the Red Sea Computed From Oxygen and Alkalinity Utilizations. (ekstern lenke)
• Olsen, Are; Rajasakaren, Balamuralli; Jeansson, Emil et al. (2024). In the Wake of Deeper Convection: Nonsteady State Anthropogenic Carbon in the Greenland Sea. (ekstern lenke)
• Ericson, Ylva; Fransson, Agneta; Chierici, Melissa et al. (2023). Rapid fCO2 rise in the northern Barents Sea and Nansen Basin. (ekstern lenke)
• Friedlingstein, Pierre; O'Sullivan, Michael; Jones, Matthew W. et al. (2023). Global Carbon Budget 2023. (ekstern lenke)
• Connelly, D.P.; Bull, J.M.; Flohr, A. et al. (2022). Assuring the integrity of offshore carbon dioxide storage. (ekstern lenke)
• Lennox, Robert; Junge, Claudia; Reubens, Jan et al. (2022). Strategic importance of the Bergen-Shetland Corridor to marine biology and oceanography of the Atlantic Ocean. (ekstern lenke)
• Fransner, Sara Filippa Krusmynta; Fröb, Friederike; Tjiputra, Jerry et al. (2022). Acidification of the Nordic Seas. (ekstern lenke)
• Lichtschlag, Anna; Pearce, Christopher R.; Suominen, Mikael et al. (2021). Suitability analysis and revised strategies for marine environmental carbon capture and storage (CCS) monitoring. (ekstern lenke)
• Becker, Meike; Olsen, Are; Landschützer, Peter et al. (2021). The northern European shelf as an increasing net sink for CO2. (ekstern lenke)
• Omar, Abdirahman; García-Ibáñez, Maribel I.; Schaap, Allison et al. (2021). 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. (ekstern lenke)
• Ali, Elsheikh B.; Skjelvan, Ingunn; Omar, Abdirahman et al. (2021). Sea surface pCO2 variability and air-sea CO2 exchange in the coastal Sudanese Red Sea. (ekstern lenke)
• Oleynik, Anna; García-Ibáñez, Maribel I.; Blaser, Nello et al. (2020). Optimal sensors placement for detecting CO2 discharges from unknown locations on the seafloor. (ekstern lenke)
• Friedlingstein, Pierre; Jones, Matthew W.; O'Sullivan, Michael et al. (2019). Global carbon budget 2019. (ekstern lenke)
• Kitidis, Vassilis; Shutler, Jamie D.; Ashton, Ian et al. (2019). Winter weather controls net influx of atmospheric CO2 on the north-west European shelf. (ekstern lenke)
• Fröb, Friederike; Olsen, Are; Becker, Meike et al. (2019). Wintertime fCO2 variability in the subpolar North Atlantic since 2004. (ekstern lenke)
• Omar, Abdirahman; Thomas, Helmuth; Olsen, Are et al. (2019). Trends of Ocean Acidification and pCO2 in the Northern North Sea, 2003-2015. (ekstern lenke)
• Fröb, Friederike; Olsen, Are; Pérez, Fiz F. et al. (2018). Inorganic Carbon and Water Masses in the Irminger Sea since 1991. (ekstern lenke)
• Ali, Elsheikh Bashir; Churchill, James H.; Barthel, Knut et al. (2018). Seasonal variations of hydrographic parameters off the Sudanese coast of the Red Sea, 2009-2015. (ekstern lenke)
• Yasunaka, Sayaka; Siswanto, Eko; Olsen, Are et al. (2018). Arctic Ocean CO2 uptake: An improved multiyear estimate of the air-sea CO2 flux incorporating chlorophyll a concentrations. (ekstern lenke)
• Alendal, Guttorm; Blackford, Jeremy; Chen, Baixin et al. (2017). Using Bayes theorem to quantify and reduce uncertainties when monitoring varying marine environments for indications of a leak. (ekstern lenke)
• Andersson, Andreas; Falck, Eva; Sjöblom, Anna et al. (2017). Air-sea gas transfer in high Arctic fjords. (ekstern lenke)
• Omar, Abdirahman; Skjelvan, Ingunn; Erga, Svein Rune et al. (2016). Aragonite saturation states and pH in western Norwegian fjords: Seasonal cycles and controlling factors, 2005-2009. (ekstern lenke)
• Quéré, Corinne Le; Andrew, Robbie; Canadell, Josep G. et al. (2016). Global Carbon Budget 2016. (ekstern lenke)
• Yasunaka, Sayaka; Murata, Akihiko; Watanabe, Eiji et al. (2016). Mapping of the air-sea CO2 flux in the Arctic Ocean and its adjacent seas: Basin-wide distribution and seasonal to interannual variability. (ekstern lenke)
• Botnen, Helle Augdal; Omar, Abdirahman; Thorseth, Ingunn Hindenes et al. (2015). The effect of submarine CO2 vents on seawater: Implications for detection of subsea carbon sequestration leakage. (ekstern lenke)
• Frigstad, Helene; Henson, Stephanie A.; Hartman, Susan E. et al. (2015). Links between surface productivity and deep ocean particle flux at the Porcupine Abyssal Plain sustained observatory. (ekstern lenke)
• Burt, William; Thomas, Helmuth; Pätsch, Johannes et al. (2014). Radium isotopes as a tracer of sediment-water column exchange in the North Sea. (ekstern lenke)
• Quéré, Corinne Le; Peters, Glen Philip; Andres, Robert J. et al. (2014). Global carbon budget 2013. (ekstern lenke)
• Quéré, C. Le; Peters, Glen Philip; Andres, R.J. et al. (2013). Global carbon budget 2013. (ekstern lenke)
• Sabine, C. L.; Hankin, S.; Koyuk, H. et al. (2013). Surface Ocean CO2 Atlas (SOCAT) gridded data products. (ekstern lenke)
• Pfeil, Benjamin; Olsen, Are; Bakker, D. C. E. et al. (2013). A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT). (ekstern lenke)
• Lauvset, Siv Kari; Chierici, Melissa; Counillon, Francois et al. (2013). Annual and seasonal fCO(2) and air-sea CO2 fluxes in the Barents Sea. (ekstern lenke)
• Botnen, Helle Augdal; Omar, Abdirahman; Aavatsmark, Ivar et al. (2013). PVTx Properties of a Two-phase CO2 Jet from Ruptured Pipeline. (ekstern lenke)
• Signorini, Sergio R.; Häkkinen, Sirpa; Gudmundsson, Kristinn et al. (2012). The role of phytoplankton dynamics in the seasonal and interannual variability of carbon in the subpolar North Atlantic - a modeling study. (ekstern lenke)
• Årthun, Marius; Bellerby, Richard; Omar, Abdirahman et al. (2012). Spatiotemporal variability of air-sea CO2 fluxes in the Barents Sea, as determined from empirical relationships and modeled hydrography. (ekstern lenke)
• Jeansson, Åke Emil; Olsen, Are; Eldevik, Tor et al. (2011). The Nordic Seas carbon budget: Sources, sinks, and uncertainties. (ekstern lenke)
• Omar, Abdirahman; Olsen, Are; Johannessen, Truls et al. (2010). Spatiotemporal variations of fCO2 in the North Sea. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Jeansson, Emil et al. (2010). Nordic seas transit time distributions and anthropogenic CO2. (ekstern lenke)
• Jutterström, Sara; Anderson, Leif Gunnar; Bates, Nicholas R. et al. (2010). Arctic Ocean data in CARINA. (ekstern lenke)
• Olsen, Are; Key, R.M.; Jeansson, Emil et al. (2009). Overview of the Nordic Seas CARINA data and salinity measurements. (ekstern lenke)
• Omar, Abdirahman; Olsen, Are; Hoppema, M. et al. (2009). Spatiotemporal variations of fCO2 in the North Sea. (ekstern lenke)
• Telszewski, Maciej; Chazottes, Aymeric; Schuster, Ute et al. (2009). Estimating the monthly pCO2 distribution in the North Atlantic using a self-organizing neural network. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls; Olsen, Are et al. (2007). Seasonal and interannual variability of the air-seaCO(2) flux in the Atlantic sector of the Barents Sea. (ekstern lenke)
• Omar, Abdirahman; Olsen, Are (2006). Reconstructing the time history of the air-sea CO2 disequilibrium and its rate of change in the eastern subpolar North Atlantic, 1972-1989. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Bellerby, Richard et al. (2006). Magnitude and origin of the anthroopogenic CO2 increase and 13C Suess effect in the Nordic seas since 1981. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Stuart-Menteth, AC et al. (2004). Diurnal variations of surface ocean pCO(2) and sea-air CO2 flux evaluated using remotely sensed data. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls; Kaltin, Stafan et al. (2004). Anthropogenic increase of oceanic pCO2 in the Barents Sea surface water. (ekstern lenke)
• Olsen, Are; Bellerby, Richard; Johannessen, Truls et al. (2004). Interannual variability in the wintertime air-sea flux of carbon dioxide in the northern North Atlantic, 1981-2001. (ekstern lenke)
• Olsen, Are; Bellerby, Richard; Johannessen, Truls et al. (2003). Interannual variability in the wintertime air-sea flux of carbon dioxide in the northern North Atlantic, 1981-2001. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls; Kaltin, S.A. et al. (2003). Anthropogenic increase of oceanic pCO2 in the Barents Sea surface water. (ekstern lenke)
• Erga, Svein Rune; Omar, Abdirahman; Singstad, Ingar et al. (1999). An optical detection system for the study of fine scale vertical displacement of microalgae in an artificial water column. (ekstern lenke)

Poster

• Lauvset, Siv Kari; Platt, Stephen Matthew; Lange, Holger et al. (2024). ICOS-NORWAY – A TOOL TO VERIFY NORWEGIAN GREENHOUSE GAS REDUCTIONS. (ekstern lenke)
• Omar, Abdirahman; Skjelvan, Ingunn (2023). Coastal biogeochemical time series in southwestern Norway. (ekstern lenke)
• Alendal, Guttorm; Dankel, Dorothy Jane; Fagerås, Bjarte et al. (2023). Assurance offshore CO2 monitoring, a cross-disciplinary approach.. (ekstern lenke)
• Omar, Abdirahman; Skjelvan, Ingunn (2021). Coastal CO2 dynamics in southwestern Norway. (ekstern lenke)
• Ericson, Ylva; Fransson, Agneta; Chierici, Melissa et al. (2021). Spatiotemporal variability of the surface water aragonite saturation state in the western Barents Sea. (ekstern lenke)
• Omar, Abdirahman; Garcia-Ibanez, Maribel; Alendal, Guttorm (2018). The stoichiometric Cseep method as a tool to distinguish CO2 seepage signal from natural variability. (ekstern lenke)
• Garcia-Ibanez, Maribel; Omar, Abdirahman; Alendal, Guttorm et al. (2018). THE STOICHIOMETRIC ΔCSEEP METHOD AS A MONITORING TOOL FOR DETECTION OF CO2 LEAKAGE FROM SUBSEA STORAGE SITES. (ekstern lenke)
• García-Ibáñez, María Isabel; Omar, Abdirahman; Johannessen, Truls (2017). Geochemical monitoring for detection of CO2 leakage from subsea storage sites. (ekstern lenke)
• Alendal, Guttorm; Blackford, Jeremy; Chen, Baixin et al. (2017). Bayes’ theorem as the fundament to design monitoring programs.. (ekstern lenke)
• Omar, Abdirahman; Battisti, Charles Roman; Jeansson, Emil et al. (2017). Ocean Thematic Centre (OTC) one of the central facilities of the ICOS RI.. (ekstern lenke)
• Becker, Meike; Olsen, Are; Bastani, Arian et al. (2017). Surface ocean pCO2 maps along the Norwegian coast-A regional optimization of global pCO2 maps. (ekstern lenke)
• Fröb, Friederike; Olsen, Are; Becker, Meike et al. (2017). Impact of North Atlantic freshening on sea surface fCO2. (ekstern lenke)
• Alendal, Guttorm; Blackford, Jeremy; Chen, Baixin et al. (2016). Using Bayes Theorem to Quantify and Reduce Uncertainties when Monitoring Varying Marine Environments for Indications of a Leak. (ekstern lenke)
• Alendal, Guttorm; Blackford, Jeremy; Chen, Baixin et al. (2016). Bayes’ theorem as the fundament to design monitoring programs.. (ekstern lenke)
• Omar, Abdirahman; Botnen, Helle Augdal; Thorseth, Ingunn Hindenes et al. (2014). The impact of submarine CO2 vents fields on seawater: implications for monitoring subsea carbon sequestration leakage. (ekstern lenke)
• Omar, Abdirahman; Botnen, Helle Augdal; Skjelvan, Ingunn et al. (2014). Annual and interannual variations of carbon cycling parameters in Arctic and temperate Norwegian fjords. (ekstern lenke)
• Botnen, Helle Augdal; Omar, Abdirahman; Aavatsmark, Ivar et al. (2012). PVTx properties of a two-phase Co2 jet from ruptured pipeline. (ekstern lenke)
• Signorini, S.; Häkkinen, S.; Olsen, Are et al. (2011). Trends in the subpolar North Atlantic carbon sink and ocean acidification: 1981-2008. (ekstern lenke)
• Telszewski, M.; Nojiri, Y.; Schuster, U. et al. (2010). Air-sea flux in the North Atlantic and the North Pacific estimated by neural network. (ekstern lenke)
• Jeansson, Emil; Olsen, Are; Eldevik, Tor et al. (2009). Transports, budget and variability of inorganic carbon in the Nordic Seas. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Jeansson, Emil et al. (2009). Nordic Seas Anthropogenic CO2. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Jeansson, Emil et al. (2009). Nordic Seas transit-time distributions and anthopogenic CO2. (ekstern lenke)
• Lauvset, Siv Kari; Olsen, Are; Johannessen, Truls et al. (2008). Effects of changes in mixing and temperature on carbon dioxide fugacity in the Northern North Atlantic and Norwegian Sea. (ekstern lenke)
• Lauvset, Siv Kari; Olsen, Are; Johannessen, Truls et al. (2008). Assessment of the temporal and spatial changes of surface ocean fCO2 in the Nordic Seas, Barents Sea, and northern North Atlantic. (ekstern lenke)
• Omar, Abdirahman; Heegaard, Einar; Olsen, Are et al. (2007). Variations of the air-sea CO2 flux in the North Sea: a new statistical method to assess the reliability of the estimates. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls; Olsen, Are (2007). CO2 variability in the Barents Sea: synthesis of available data and ongoing measurements. (ekstern lenke)
• Omar, Abdirahman (2007). Air-sea CO2 flux variability in marginal seas bordering Norway: Barents Sea and North Sea. (ekstern lenke)
• Omar, Abdirahman; Olsen, Are; Johannessen, Truls (2007). Air-sea ice CO2 flux variability in marginal seas bordering Norway: Barents Sea and North Sea. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Bellerby, Richard et al. (2005). Nordic Seas Anthropogenic CO2 Increase and 13C Suess Effect Over the Last two Decades. (ekstern lenke)
• Olsen, Are; Bellerby, Richard; Haugan, Peter M. et al. (2004). Bjerknes activity 8: Ocean carbon cycle and biogeochemistry. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman (2004). Diurnal variations of surface ocean pCO2 and sea-air CO2 flux evaluated using remotely sensed data. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls; Bellerby, Richard et al. (2004). Sea ice and brine formation in Storfjorden: Implications for the Arctic winter time air-sea CO2 flux. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Stuart-Menteth, A. et al. (2004). Diurnal variations of surface ocean pCO2 and sea-air CO2 flux evaluated using remotely sensed data. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls (2001). can cold brine formation intensify the oceanic uptake of atmospheric CO2?. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls (2001). can cold brine formation intensify the oceanic uptake of atmospheric CO2?. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls (2000). Chemical characterisation of waters in Storfjorden. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls (2000). Potential Brine Water Sources in Storfjorden. (ekstern lenke)

Vitenskapelig foredrag

• Ericson, Ylva; Fransson, Agneta; Chierici, Melissa et al. (2023). Rapid fCO2 rise in the northern Barents Sea and Nansen Basin. (ekstern lenke)
• Gasda, Sarah Eileen; Oleynik, Anna; Tveit, Svenn et al. (2023). ACTOM Decision Support Tool for offshore environmental monitoring: Smeaheia region case study, Norwegian North Sea. (ekstern lenke)
• Alendal, Guttorm; Schütz, Sigrid Eskeland; Oleynik, Anna et al. (2022). ACT on Marine Monitoring, project presentation. (ekstern lenke)
• Omar, Abdirahman (2021). Detection and quantification of CO2 seepage in seawater using the stoichiometric Cseep method. (ekstern lenke)
• Omar, Abdirahman (2021). CO2 i sjøvann: Miljøstatistikk og utfordringer knyttet til å oppdage lekkasje. (ekstern lenke)
• Becker, Meike; Olsen, Are; Landschützer, Peter et al. (2021). The northern European shelf as increasing net sink for CO2. (ekstern lenke)
• Alendal, Guttorm; Oleynik, Anna; Dankel, Dorothy Jane et al. (2020). Monitoring offshore CO2 storage projects, aligning capabilities with regulations and public expectations.. (ekstern lenke)
• Omar, Abdirahman; Carpentier, Stefan (2020). Act on Offshore Monitoring (ACTOM). Monitoring offshore CCS. CCS regulatory framework.. (ekstern lenke)
• Omar, Abdirahman (2020). The Cseep method as a monitoring tool to detect and quantify CO2 seepage.. (ekstern lenke)
• Omar, Abdirahman; Garcia-Ibanez, Maribel; Oleynik, Anna (2019). Utility of the Cseep method in the vicinity of Goldeneye.. (ekstern lenke)
• Omar, Abdirahman (2019). The stoichiometric Cseep method as a tool to detect CO2 seepage from subsea CO2 storage in the North Sea: potential role of ICOS data.. (ekstern lenke)
• Alendal, Guttorm; Oleynik, Anna; Blaser, Nello et al. (2018). The need for proper environmental statistics to design adequate monitoring for offshore geological storage of CO2 projects.. (ekstern lenke)
• Blackford, Jerry; Alendal, Guttorm; Artioli, Yuri et al. (2018). Ensuring efficient and robust offshore storage – the role of marine system modelling. (ekstern lenke)
• Becker, Meike; Olsen, Are; Omar, Abdirahman et al. (2017). Surface ocean pCO2 measurements within ICOS Norway and the example of M/V Nuka Arctica. (ekstern lenke)
• Omar, Abdirahman; Ali, Elsheikh Bashir; Skjelvan, Ingunn et al. (2014). The inorganic carbon cycle in the Red Sea studied using historical cruise data and five years long coastal time series. (ekstern lenke)
• Skjelvan, Ingunn; Olsen, Are; Omar, Abdirahman et al. (2013). Ocean acidification and trends in the Norwegian Sea. (ekstern lenke)
• Jeansson, E; Olsen, Are; Eldevik, Tor et al. (2012). A carbon budget for the Nordic Seas. (ekstern lenke)
• Omar, Abdirahman (2012). Multi-sensor platform for monitoring CO2 seepage in marine sediment /benthic boundary layer and overlying water column. (ekstern lenke)
• Johannessen, Truls; Omar, Abdirahman; Reigstad, Laila Johanne (2012). WP 5: Detection of potential leakage of injected CO2 and its potential effect on the environment. (ekstern lenke)
• Smedsrud, Lars Henrik; Ingvaldsen, Randi; Esau, Igor et al. (2012). The role of the Barents Sea in the climate system. (ekstern lenke)
• Johannessen, Truls; Omar, Abdirahman; Reigstad, Laila Johanne et al. (2012). Status WP5: The Marine Component. (ekstern lenke)
• Bellerby, Richard; Tjiputra, Jerry; Silyakova, Anna et al. (2012). North Atlantic and Arctic Ocean carbon biogeochemical responses and feedbacks to climate change. (ekstern lenke)
• Dokken, Trond Martin; Omar, Abdirahman; Li, Camille (2012). Benthic S18O signature of dense brine from sea ice formation in the North Atlantic. (ekstern lenke)
• Omar, Abdirahman; Olsen, Are; Johannessen, Truls et al. (2011). Spatiotemporal variations of fCO2 in the North Sea. (ekstern lenke)
• Signorini, S.; Häkkinen, S.; Olsen, Are et al. (2011). Trends in the subpolar North Atlantic carbon sink and ocean acidification: 1981-2008. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Jeansson, Emil et al. (2010). Anthropogenic carbon and ocean acidification in the Nordic Seas. (ekstern lenke)
• Jeansson, Emil; Olsen, Are; Eldevik, Tor et al. (2010). The Nordic Seas Carbon Budget: Sources, Sinks And Uncertainties. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls; Haugan, Peter M. (2010). Konsekvenser av CO2 lekkasje. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Jeansson, Emil et al. (2010). Nordic Seas anthropogenic CO2, evaluation of methods and distribution. (ekstern lenke)
• Bellerby, Richard; Olsen, Are; Nondal, Gisle et al. (2010). Ocean acidification response to surface ocean conditioning and transport - processes influencing anthropogenic carbon change in the Arctic and Southern oceans. (ekstern lenke)
• Omar, Abdirahman (2010). Carbon uptake and acidification in high latitude NA:the decisive role of air-sea CO2 disequilibrium. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls (2010). CO2 storage sites in the North Sea Overview: WP Water Column. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls (2009). What parameters should be measured in the water column during a baseline study?. (ekstern lenke)
• Omar, Abdirahman; Olsen, Are; Neil, C et al. (2009). Marine carbon measurement techniques. (ekstern lenke)
• Olsen, Are; Bellerby, Richard; Johannessen, Truls et al. (2009). Havforsuring - utvikling og prognoser for norske farvann. (ekstern lenke)
• Omar, Abdirahman; Are, Olsen; Truls, Johannessen et al. (2008). fCO2 variability in the North Sea. (ekstern lenke)
• Omar, Abdirahman; Are, Olsen; Truls, Johannessen et al. (2008). Spetio-temporal fCO2 variability in the North Sea. (ekstern lenke)
• Olsen, Are; Lauvseth, Siv K.; Skjelvan, Ingunn et al. (2007). Surface Ocean CO2 Variability and Vulnerabilities: The Arctic Ocean and Nordic Seas. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Bellerby, Richard et al. (2006). The anthropogenic CO2 increase and 13C Suess effect in the northern North Atlantic. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Bellerby, Richard et al. (2006). Carbon changes in the high latitude North Atlantic. (ekstern lenke)
• Omar, Abdirahman; Olsen, Are; Johannessen, Truls (2006). Air-sea CO2 flux variability in the North Sea: 19 months of observations from voluntry observing ships. (ekstern lenke)
• Omar, Abdirahman (2005). pCO2 measurements from voluntary observing ships (VOS): the scientific aspect. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls; Bellerby, Richard et al. (2005). Sea Ice brinbe formation in Storfjorden: implications for the Arctic winter time air-sea CO2 flux. (ekstern lenke)
• Omar, Abdirahman (2005). Ny kunnskap om havets respons til utslipp av menneskeskapt (antropogent) karbon. (ekstern lenke)
• Olsen, Are; Skjelvan, Ingunn; Omar, Abdirahman et al. (2005). Establishing a northen North Atlantic CO2 observing network. (ekstern lenke)
• Bellerby, Richard; Heinze, Christoph; Kivimæe, Caroline et al. (2005). Ocean carbon cycle and biogeochemistry. (ekstern lenke)
• Omar, Abdirahman (2003). Brine formation as a pathway for carbon to the deep ocean. (ekstern lenke)
• Johannessen, Truls; Anderson, Leif G.; Bellerby, Richard et al. (2002). The role of convection and seasonal to interannual variability on carbon uptake in the Nordic Seas, Ocean Sciences Meeting. (ekstern lenke)
• Olsen, Are; Bellerby, Richard; Johannessen, Truls et al. (2002). Instumentation for in Situ and Autonomous Monitoring of the Marine Carbon Dioxide System. (ekstern lenke)
• Johannessen, Truls; Bellerby, Richard; Jansen, Eystein et al. (2001). The Greenland Sea Experiment. (ekstern lenke)
• Johannessen, Truls; Bellerby, Richard; Omar, Abdirahman et al. (2001). The role of convection and seasonal to interannual variability on carbon uptake in the Nordic seas. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls (2001). Can cold brine formation intensify the oceanic uptake of atmospheric CO2?. (ekstern lenke)
• Johannessen, Truls; Bellerby, Richard; Omar, Abdirahman et al. (2001). Developing an autonomous high precision pH sensor for high quality pH profiling of the water column and fCO2 measurements from ships of opportunities, "Autonomous Biogeochemical Measurements in the Ocean". (ekstern lenke)
• Johannessen, Truls; Messias, Marie-José; Olsson, Anders et al. (2001). Ocean pathways as seen by tracers and transport of carbon in the Nordic Seas. (ekstern lenke)
• Johannessen, Truls; Andersson, Leif G.; Bellerby, Richard et al. (2000). The Carbon cycle in the Nordic Seas, a perspective. (ekstern lenke)
• Johannessen, Truls; Andersson, Leif G.; Falck, Eva et al. (2000). The carbon cycle in the Nordic Seas, A synthesis done during the CARDEEP era. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls (2000). Potential brine water sources in Storfjord. (ekstern lenke)
• Skjelvan, Ingunn; Johannessen, Truls; Omar, Abdirahman (2000). fCO2 variations and fCO2 calculations in the Greenland Sea surface water. (ekstern lenke)

Rapport

• Schütz, Sigrid Eskeland; Omar, Abdirahman (2023). Report on regulations and technological capabilities for monitoring CO2 storage sites.. (ekstern lenke)
• Jones, Elizabeth Marie; Skjelvan, Ingunn; Frigstad, Helene et al. (2022). Monitoring ocean acidification in Norwegian seas in 2021 - selected results. (ekstern lenke)
• Skjelvan, Ingunn; Jeansson, Emil; Chierici, Melissa et al. (2022). Trender i havforsuring og antropogent karbon i de nordiske hav, Nordsjøen og Skagerrak. (ekstern lenke)
• Skjelvan, Ingunn; Jones, Elizabeth Marie; Chierici, Melissa et al. (2021). Monitoring ocean acidification in Norwegian seas in 2020 / Havforsuringsovervåking i norske farvann i 2020. (ekstern lenke)
• Skjelvan, Ingunn; Jones, Elizabeth Marie; Chierici, Melissa et al. (2021). Monitoring ocean acidification in Norwegian seas in 2020. (ekstern lenke)
• Schütz, Sigrid Eskeland; Omar, Abdirahman; Carpentier, Stefan (2021). Report on regulations and technological capabilities for monitoring CO2 storage sites. ACTOM project report. Version 1.0. (ekstern lenke)
• Omar, Abdirahman; Garcia-Ibanez, Maribel; Oleynik, Anna et al. (2019). Underpinning data for monitoring activities (including current statistics and carbon tracer quantifications). (ekstern lenke)
• Omar, Abdirahman (2019). Determination of seepage CO2 dissolved in seawater using the Cseep method. (ekstern lenke)
• López-Ballesteros, Ana; Beck, Johannes; Skjelvan, Ingunn et al. (2019). Training workshops in measurement, data management and quality control methodologies for the observation of greenhouse gas dynamics in the atmospheric, oceanic and terrestrial domains. SEACRIFOG Deliverable 4.4.. (ekstern lenke)
• Skjelvan, Ingunn; Omar, Abdirahman; Ali, Elsheikh Bashir et al. (2019). Training workshop with focus on preparing oceanographic data for sharing, Deliverable 5.3 from the EU project 730995 SEACRIFOG. (ekstern lenke)
• Esau, Igor; Davy, Richard; Smedsrud, Lars H. et al. (2018). BASIC:-Boundary Layers in the Arctic Atmosphere, Seas and Ice Dynamics - SKD Strategic Project January 2015 – December 2017. (ekstern lenke)
• Omar, Abdirahman; Alendal, Guttorm; Garcia-Ibanez, Maribel et al. (2018). Marine monitoring of carbon capture and storage: Methods, strategy, and potential impacts of excess inorganic carbon in the water column. (ekstern lenke)
• Beck, Johannes; López-Ballesteros, Ana; Omar, Abdirahman et al. (2018). Identification of Key Variables for Climate Change Observation across Africa. SEACRIFOG Deliverable 4.1: Ideal and Mandatory Sets of Variables and Criteria. (ekstern lenke)
• Chierici, Melissa; Skjelvan, Ingunn; Norli, Marit et al. (2016). Overvåking av havforsuring i norske farvann i 2015. (ekstern lenke)
• Skjelvan, Ingunn; Chierici, Melissa; Sørensen, Kai et al. (2016). Havforsuring i vestlandsfjorder og CO2-variabilitet i Lofoten. (ekstern lenke)
• Skjelvan, Ingunn; Omar, Abdirahman (2015). Kunnskapsstatus for havforsuring i fjorder langs Vestlandskysten. (ekstern lenke)
• Aall, Carlo; Omar, Abdirahman; Børsheim, Knut Yngve et al. (2015). Havforsuring og sjømatnæringen på Vestlandet: Kunnskapsstatus og handlingsrom Rapport fra et forprosjekt. (ekstern lenke)
• Skjelvan, Ingunn; Jeansson, Emil; Chierici, Melissa et al. (2014). Havforsuring og opptak av antropogent karbon i de Nordiske hav, 1981-2013, M244-2014. (ekstern lenke)
• Botnen, Helle Augdal; Omar, Abdirahman; Aavatsmark, Ivar et al. (2014). Unintended releases of Carbon Dioxide (CO2) from offshore pipelines: thermodynamic processes and the fundamental hydrodynamical equations. (ekstern lenke)
• Skjelvan, Ingunn; Olsen, Are; Omar, Abdirahman et al. (2013). Rapport fra arbeidet med å oppdatere havforsuringsdelen av Forvaltningsplanen for Norskehavet. (ekstern lenke)
• Alendal, Guttorm; Omar, Abdirahman; Denny, AR et al. (2013). Technical synthesis report on droplet/bubble dynamics, plume dynamics and modelling parameters, use of hydro-acoustics to quantify droplet/bubble fluxes, and carbonate system variable assessment. (ekstern lenke)
• Omar, Abdirahman (2009). Internrapport: Rapport nr R32 Theoretical discription and empirical evaluation of a water degasser developed by Akvator AS. (ekstern lenke)

Fagartikkel

• Alendal, Guttorm; Gasda, Sarah Eileen; Romanak, Katherine et al. (2022). The Impact of Pre-Project Data Quality and Quantity on Developing Environmental Monitoring Strategies for Offshore Carbon Storage: Case Studies from the Gulf of Mexico and the North Sea.. (ekstern lenke)
• Dewar, Marius; Alendal, Guttorm; Blackford, Jeremy et al. (2022). Demonstration of a Semi-Automated Decision Support Toolbox to Aid Operators in the Design of Efficient Environmental Offshore Monitoring Programs for Co2 Storage Sites. (ekstern lenke)

Vitenskapelig oversiktsartikkel/review

• Wanninkhof, Rik; Pickers, Penelope A.; Omar, Abdirahman et al. (2019). A surface ocean CO2 reference network, SOCONET and associated marine boundary layer CO2 measurements. (ekstern lenke)
• Steinhoff, Tobias; Gkritzalis, Thanos; Lauvset, Siv Kari et al. (2019). Constraining the oceanic uptake and fluxes of greenhouse gases by building an ocean network of certified stations: The ocean component of the Integrated Carbon Observation System, ICOS-Oceans. (ekstern lenke)
• Bakker, Dorothee C.E.; Pfeil, Benjamin; Landa, Camilla Stegen et al. (2016). A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO2 Atlas (SOCAT). (ekstern lenke)
• Smedsrud, Lars Henrik; Esau, Igor; Ingvaldsen, Randi et al. (2013). The role of the Barents Sea in the arctic climate system. (ekstern lenke)

Intervju

• Omar, Abdirahman (2019). Video intervju about the H2020 SEACRIFOG project.. (ekstern lenke)
• Omar, Abdirahman (2015). Tracing subsea CO2 leakag. (ekstern lenke)
• Reigstad, Laila Johanne; Omar, Abdirahman (2013). Focus on the Seabed; monitoring of water column and sediments. (ekstern lenke)

Faglig foredrag

• Skjelvan, Ingunn; Becker, Meike; Omar, Abdirahman et al. (2018). ICOS data used for Ocean acidification research. (ekstern lenke)
• Omar, Abdirahman (2015). Monitoring of varying marine environment: detection method and survey strategies. (ekstern lenke)
• Omar, Abdirahman (2015). Marine environmental monitoring. (ekstern lenke)
• Omar, Abdirahman (2014). Marine Monitoring -Carbon-based tracers early detection of CO2 leakage. (ekstern lenke)

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

• Bakker, Dorothee C.E.; Bange, Hermann W.; Gruber, Nicolas et al. (2014). Air-sea interactions of natural long-lived greenhouse gases (CO2, N2O, CH4)in a changing climate. (ekstern lenke)
• Omar, Abdirahman; Johannessen, Truls; Bellerby, Richard et al. (2005). Sea-Ice and Brine Formation in Storfjorden: Implications for the Arctic Wintertime Air-Sea CO2 Flux. (ekstern lenke)
• Skjelvan, Ingunn; Olsen, Are; Anderson, Leif Gunnar et al. (2005). A Review of the Inorganic Carbon Cycle of the Nordic Seas and Barents Sea. (ekstern lenke)

Populærvitenskapelig artikkel

• Omar, Abdirahman; Skjelvan, Ingunn; Olsen, Are (2009). Forsuring påvist i havene rundt Norge. (ekstern lenke)
• Olsen, Are; Omar, Abdirahman; Skjelvan, Ingunn et al. (2008). The Bjerknes Centre pCO2 observing network. (ekstern lenke)

Doktorgradsavhandling

• Omar, Abdirahman (2003). Carbon dioxide in northern high latitude oceans: anthropogenic increase and air-sea flux variability. (ekstern lenke)

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