• A Framework for the Development, Design and Implementation of a Sustained Arctic Ocean Observing System 

      Lee, Craig M.; Starkweather, Sandy; Eicken, Hajo; Timmermans, Mary-Louise; Wilkinson, Jeremy; Sandven, Stein; Dukhovskoy, Dmitry; Gerland, Sebastian; Grebmeier, Jacqueline; Intrieri, Janet M.; Kang, Sung-Ho; McCammon, Molly; Nguyen, An T.; Polyakov, Igor; Rabe, Benjamin; Sagen, Hanne; Seeyave, Sophie; Volkov, Denis; Beszczynska-Möller, Agnieszka; Chafik, Léon; Dzieciuch, Matthew; Goni, Gustavo; Hamre, Torill; King, Andrew Luke; Olsen, Are; Raj, Roshin Pappukutty; Rossby, Thomas; Skagseth, Øystein; Søiland, Henrik; Sørensen, Kai (Peer reviewed; Journal article, 2019)
      Rapid Arctic warming drives profound change in the marine environment that have significant socio-economic impacts within the Arctic and beyond, including climate and weather hazards, food security, transportation, ...
    • A model study of the seasonal and long-term North Atlantic surface pCO(2) variability 

      Tjiputra, Jerry; Olsen, Are; Assmann, Karen Margarete; Pfeil, Benjamin; Heinze, Christoph (Journal article; Peer reviewed, 2012)
      A coupled biogeochemical-physical ocean model is used to study the seasonal and long–term variations of surface pCO2 in the North Atlantic Ocean. The model agrees well with recent underway pCO2 observations from the Surface ...
    • A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO2 Atlas (SOCAT) 

      Bakker, Dorothee C.E.; Pfeil, Benjamin; Landa, Camilla Stegen; Metzl, Nicolas; O'Brien, Kevin M.; Olsen, Are; Smith, Karl; Cosca, Cathy; Harasawa, Sumiko; Jones, Stephen Daniel; Nakaoka, Shin-Ichiro; Nojiri, Yukihiro; Schuster, Ute; Steinhoff, Tobias; Sweeney, Colm; Takahashi, Taro; Tilbrook, Bronte; Wada, Chisato; Wanninkhof, Rik; Alin, Simone R.; Balestrini, Carlos F.; Barbero, Leticia; Bates, Nicholas R.; Bianchi, Alejandro A.; Bonou, Frédéric; Boutin, Jacqueline; Bozec, Yann; Burger, Eugene F.; Cai, Wei-Jun; Castle, Robert D.; Chen, Liqi; Chierici, Melissa; Currie, Kim; Evans, Wiley; Featherstone, Charles; Feely, Richard A.; Fransson, Agneta Ingrid; Goyet, Catherine; Greenwood, Naomi; Gregor, Luke; Hankin, Steven; Hardman-Mountford, Nick J.; Harlay, Jérôme; Hauck, Judith; Hoppema, Mario; Humphreys, Matthew P.; Hunt, Christopher W.; Huss, Betty; Ibanhez, J. Severino P.; Johannessen, Truls; Keeling, Ralph; Kitidis, Vassilis; Körtzinger, Arne; Kozyr, Alex; Krasakopoulou, Evangelia; Kuwata, Akira; Landschützer, Peter; Lauvset, Siv Kari; Lefevre, Nathalie; Lo Monaco, Claire; Manke, Ansley; Mathis, Jeremy T.; Merlivat, Liliane; Millero, Frank J.; Monteiro, Pedro M.S.; Munro, David R.; Murata, Akihiko; Newberger, Timothy; Omar, Abdirahman; Ono, Tsuneo; Paterson, Kristina; Pearce, David A.; Pierrot, Denis; Robbins, Lisa L.; Saito, Shu; Salisbury, Joe; Schlitzer, Reiner; Schneider, Bernd; Schweitzer, Roland; Sieger, Rainer; Skjelvan, Ingunn; Sullivan, Kevin F.; Sutherland, Stewart C.; Sutton, Adrienne J.; Tadokoro, Kazuaki; Telszewski, Maciej; Tuma, Matthias; Van Heuven, Steven M.A.C.; Vandemark, Doug; Ward, Brian; Watson, Andrew J.; Xu, Suqing (Journal article; Peer reviewed, 2016)
      The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO2 (fugacity of carbon dioxide) values for the global surface oceans and coastal seas with regular updates. Version 3 of SOCAT has 14.7 million ...
    • A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT) 

      Pfeil, Benjamin; Olsen, Are; Bakker, D.C.E.; Hankin, S.; Koyuk, H.; Kozyr, A.; Malczyk, J.; Manke, A.; Metzl, N.; Sabine, C.L.; Akl, J.; Alin, S.R.; Bates, N.; Bellerby, Richard; Borges, A.; Boutin, J.; Brown, P.J.; Cai, W.-J.; Chavez, F.P.; Chen, A.; Cosca, C.; Fassbender, A.; Feely, R.A.; González-Dávila, M.; Goyet, C.; Hales, B.; Hardman-Mountford, N.; Heinze, Christoph; Hood, M.; Hoppema, M.; Hunt, C.W.; Hydes, D.; Ishii, M.; Johannessen, Truls; Jones, S.D.; Key, R.M.; Körtzinger, A.; Landschützer, P.; Lauvset, Siv Kari; Lefèvre, N.; Lenton, A.; Lourantou, A.; Merlivat, L.; Midorikawa, T.; Mintrop, L.; Miyazaki, C.; Murata, A.; Nakadate, A.; Nakano, Y.; Nakaoka, S.; Nojiri, Y.; Omar, Abdirahman; Padin, X.A.; Park, H.; Paterson, K.; Perez, F.F.; Pierrot, D.; Poisson, A.; Rios, A.F.; Santana-Casiano, J.M.; Salisbury, J.; Sarma, V.V.S.S.; Schlitzer, R.; Schneider, B.; Schuster, U.; Sieger, R.; Skjelvan, Ingunn; Steinhoff, T.; Suzuki, T.; Takahashi, T.; Tedesco, K.; Telszewski, M.; Thomas, H.; Tilbrook, B.; Tjiputra, Jerry; Vandemark, D.; Veness, T.; Wanninkhof, R.; Watson, A. J.; Weiss, R.; Wong, CS.; Yoshikawa-Inoue, H. (Journal article; Peer reviewed, 2013)
      Abstract. A well-documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) ...
    • 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 (Peer reviewed; Journal article, 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 ...
    • An update to the Surface Ocean CO2 Atlas (SOCAT version 2) 

      Bakker, Dorothee C.E.; Pfeil, Benjamin; Olsen, Are; Chierici, Melissa; Fransson, Agneta; Johannessen, Truls; Lauvset, Siv Kari; Skjelvan, Ingunn; Tjiputra, Jerry (Journal article; Peer reviewed, 2014)
    • Arctic Ocean CO2 uptake: An improved multiyear estimate of the air-sea CO2 flux incorporating chlorophyll a concentrations 

      Yasunaka, Sayaka; Siswanto, Eko; Olsen, Are; Hoppema, Mario; Watanabe, Eiji; Fransson, Agneta Ingrid; Chierici, Melissa; Murata, Akihiko; Lauvset, Siv Kari; Wanninkhof, Rik; Takahashi, Taro; Kosugi, Naohiro; Omar, Abdirahman; van Heuven, Steven; Mathis, Jeremy T. (Journal article; Peer reviewed, 2018)
      We estimated monthly air–sea CO2 fluxes in the Arctic Ocean and its adjacent seas north of 60° N from 1997 to 2014. This was done by mapping partial pressure of CO2 in the surface water (pCO2w) using a self-organizing map ...
    • Continued warming, salinification and oxygenation of the Greenland Sea gyre 

      Lauvset, Siv Kari; Brakstad, Ailin Dale; Våge, Kjetil; Olsen, Are; Jeansson, Emil; Mork, Kjell Arne (Journal article; Peer reviewed, 2018)
      The Greenland Sea gyre is one of the few areas where the water column is ventilated through open ocean convection. This process brings both anthropogenic carbon and oxygen from the atmosphere and surface ocean into the ...
    • Effects of sea-ice and biogeochemical processes and storms on under-ice water fCO2 during the winter-spring transition in the high Arctic Ocean: Implications for sea-air CO2 fluxes 

      Fransson, Agneta Ingrid; Chierici, Melissa; Skjelvan, Ingunn; Olsen, Are; Assmy, Philipp; Peterson, Algot Kristoffer; Spreen, Gunnar; Ward, Brian (Peer reviewed; Journal article, 2017)
    • Global surface-ocean p(CO2) and sea-air CO2 flux variability from an observation-driven ocean mixed-layer scheme 

      Rödenbeck, C.; Keeling, R.F.; Bakker, D.C.E.; Metzl, N.; Olsen, Are; Sabine, C.; Heimann, M. (Journal article; Peer reviewed, 2013-03-01)
      A temporally and spatially resolved estimate of the global surface-ocean CO2 partial pressure field and the sea–air CO2 flux is presented, obtained by fitting a simple data-driven diagnostic model of ocean mixed-layer ...
    • Nordic Seas Heat Loss, Atlantic Inflow, and Arctic Sea Ice cover over the last century 

      Smedsrud, Lars Henrik; Muilwijk, Morven; Eldevik, Tor; Årthun, Marius; Brakstad, Ailin; Madonna, Erica; Lauvset, Siv Kari; Spensberger, Clemens; Born, Andreas; Drange, Helge; Jeansson, Emil; Li, Camille; Olsen, Are; Skagseth, Øystein; Slater, Donald; Straneo, Fiammetta; Våge, Kjetil (Peer reviewed; Journal article, 2021)
      Poleward ocean heat transport is a key process in the earth system. We detail and review the northward Atlantic Water (AW) flow, Arctic Ocean heat transport, and heat loss to the atmosphere since 1900 in relation to sea ...
    • On the future of Argo: A global, full-depth, multi-disciplinary array 

      Roemmich, Dean; Alford, Matthew H.; Claustre, Herve; Johnson, Kenneth S.; King, Brian; Moum, James; Oke, Peter R.; Owens, W. Brechner; Pouliquen, Sylvie; Purkey, Sarah; Scanderbeg, Megan; Suga, Toshio; Wijffels, Susan E.; Zilberman, Nathalie; Bakker, Dorothee; Baringer, Molly O.; Belbeoch, Mathieu; Bittig, Henry C.; Boss, Emmanuel; Calil, Paulo; Carse, Fiona; Carval, Thierry; Chai, Fei; Conchubhair, Diarmuid Ó.; D'Ortenzio, Fabrizio; Dall'Olmo, Giorgio; Desbruyeres, Damien; Fennel, Katja; Fer, Ilker; Ferrari, Raffaele; Forget, Gael; Freeland, Howard; Fujiki, Tetsuichi; Gehlen, Marion; Greenan, Blair; Hallberg, Robert; Hibiya, Toshiyuki; Hosoda, Shigeki; Jayne, Steven; Jochum, Markus; Johnson, Gregory C.; Kang, KiRyong; Kolodziejczyk, Nicolas; Körtzinger, Arne; Le Traon, Pierre-Yves; Lenn, Yueng-Djern; Maze, Guillaume; Mork, Kjell Arne; Morris, Tamaryn; Nagai, Takeyoshi; Nash, Jonathan; Garabato, Alberto N.; Olsen, Are; Pattabhi, Rama R.; Prakash, Satya; Riser, Stephen; Schmechtig, Catherin; Shroyer, Emily; Sterl, Andreas; Sutton, Philip; Talley, Lynne; Tanhua, Toste; Thierry, Virginie; Thomalla, Sandy; Toole, John; Troisi, Ariel; Trull, Thomas W.; Turton, Jonathan D.; Vélez-Belchi, Pedro Joaquin; Walczowski, Waldemar; Wang, Haili; Wanninkhof, Rik; Waterhouse, Amy F.; Watson, Andrew; Wilson, Cara; Wong, Annie P.S.; Xu, Jianping; Yasuda, Ichiro (Journal article; Peer reviewed, 2019)
      The Argo Program has been implemented and sustained for almost two decades, as a global array of about 4000 profiling floats. Argo provides continuous observations of ocean temperature and salinity versus pressure, from ...
    • On the future of Argo: A global, full-depth, multi-disciplinary array 

      Roemmich, Dean; Alford, Matthew H.; Claustre, Herve; Johnson, Kenneth S.; King, Brian; Moum, James; Oke, Peter R.; Owens, W. Brechner; Pouliquen, Sylvie; Purkey, Sarah; Scanderbeg, Megan; Suga, Toshio; Wijffels, Susan E.; Zilberman, Nathalie; Bakker, Dorothee; Baringer, Molly O.; Belbeoch, Mathieu; Bittig, Henry C.; Boss, Emmanuel; Calil, Paulo; Carse, Fiona; Carval, Thierry; Chai, Fei; Conchubhair, Diarmuid Ó.; D'Ortenzio, Fabrizio; Dall'Olmo, Giorgio; Desbruyeres, Damien; Fennel, Katja; Fer, Ilker; Ferrari, Raffaele; Forget, Gael; Freeland, Howard; Fujiki, Tetsuichi; Gehlen, Marion; Greenan, Blair; Hallberg, Robert; Hibiya, Toshiyuki; Hosoda, Shigeki; Jayne, Steven; Jochum, Markus; Johnson, Gregory C.; Kang, KiRyong; Kolodziejczyk, Nicolas; Körtzinger, Arne; Le Traon, Pierre-Yves; Lenn, Yueng-Djern; Maze, Guillaume; Mork, Kjell Arne; Morris, Tamaryn; Nagai, Takeyoshi; Nash, Jonathan; Garabato, Alberto N.; Olsen, Are; Pattabhi, Rama R.; Prakash, Satya; Riser, Stephen; Schmechtig, Catherin; Shroyer, Emily; Sterl, Andreas; Sutton, Philip; Talley, Lynne; Tanhua, Toste; Thierry, Virginie; Thomalla, Sandy; Toole, John; Troisi, Ariel; Trull, Thomas W.; Turton, Jonathan D.; Vélez-Belchi, Pedro Joaquin; Walczowski, Waldemar; Wang, Haili; Wanninkhof, Rik; Waterhouse, Amy F.; Watson, Andrew; Wilson, Cara; Wong, Annie P.S.; Xu, Jianping; Yasuda, Ichiro (Journal article; Peer reviewed, 2019)
      The Argo Program has been implemented and sustained for almost two decades, as a global array of about 4000 profiling floats. Argo provides continuous observations of ocean temperature and salinity versus pressure, from ...
    • Overvåking av havforsuring 

      Børsheim, Knut Yngve; Chierici, Melissa; Olsen, Are (Rapport fra Havforskningen;Nr. 17-2012, Working paper, 2012-05)
    • Productivity in the Barents Sea - Response to Recent Climate Variability 

      Dalpadado, Padmini; Arrigo, Kevin R.; Hjøllo, Solfrid Sætre; Rey, Francisco; Ingvaldsen, Randi B.; Sperfeld, Erik; Dijken, Gert L. van; Stige, Leif C.; Olsen, Are; Ottersen, Geir (Journal article; Peer reviewed, 2014-05-01)
      The temporal and spatial dynamics of primary and secondary biomass/production in the Barents Sea since the late 1990s are examined using remote sensing data, observations and a coupled physical-biological model. Field ...
    • Surface Ocean CO2 Atlas (SOCAT) gridded data products 

      Sabine, C.L.; Hankin, S.; Koyuk, H.; Bakker, D.C.E.; Pfeil, Benjamin; Olsen, Are; Metzl, N.; Kozyr, A.; Fassbender, A.; Manke, A.; Malczyk, J.; Akl, J.; Alin, S.R.; Bellerby, Richard; Borges, A.; Boutin, J.; Brown, P.J.; Cai, W.-J.; Chavez, F.P.; Chen, A.; Cosca, C.; Feely, R. A.; González-Dávila, M.; Goyet, C.; Hardman-Mountford, N.; Heinze, Christoph; Hoppema, M.; Hunt, C.W.; Hydes, D.; Ishii, M.; Johannessen, Truls; Key, R.M.; Körtzinger, A.; Landschützer, P.; Lauvset, Siv Kari; Lefévre, N.; Lenton, A.; Lourantou, A.; Merlivat, L.; Midorikawa, T.; Mintrop, L.; Miyazaki, C.; Murata, A.; Nakadate, A.; Nakano, Y.; Nakaoka, S.; Nojiri, Y.; Omar, Abdirahman; Padin, X.A.; Park, G.-H.; Paterson, K.; Perez, F.F.; Pierrot, D.; Poisson, A.; Rios, A.F.; Salisbury, J.; Santana-Casiano, J.M:; Sarma, V.V.S.S.; Schlitzer, R.; Schneider, B.; Schutser, U.; Sieger, R.; Skjelvan, Ingunn; Steinhoff, T.; Suzuki, T.; Takahashi, T.; Tedesco, K.; Telszewski, M.; Thomas, H.; Tilbrook, B.; Vandemark, D.; Veness, T.; Watson, A.J.; Weiss, R.; Wong, C.S.; Yoshikawa-Inoue, H. (Journal article; Peer reviewed, 2013)
    • The role of the Barents Sea in the Arctic climate system 

      Smedsrud, Lars H.; Esau, Igor; Ingvaldsen, Randi; Eldevik, Tor; Haugan, Peter M.; Li, Camille; Lien, Vidar S.; Olsen, Are; Omar, Abdirahman M.; Otterå, Odd H.; Risebrobakken, Bjørg; Sandø, Anne B.; Semenov, Vladimir A.; Sorokina, Svetlana A. (Journal article; Peer reviewed, 2013-09-16)
      Present global warming is amplified in the Arctic and accompanied by unprecedented sea ice decline. Located along the main pathway of Atlantic Water entering the Arctic, the Barents Sea is the site of coupled feedback ...