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| Registros recuperados: 15 | |
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| Le Quere, Corinne; Andrew, Robbie M.; Canadell, Josep G.; Sitch, Stephen; Korsbakken, Jan Ivar; Peters, Glen P.; Manning, Andrew C.; Boden, Thomas A.; Tans, Pieter P.; Houghton, Richard A.; Keeling, Ralph F.; Alin, Simone; Andrews, Oliver D.; Anthoni, Peter; Barbero, Leticia; Bopp, Laurent; Chevallier, Frederic; Chini, Louise P.; Ciais, Philippe; Currie, Kim; Delire, Christine; Doney, Scott C.; Friedlingstein, Pierre; Gkritzalis, Thanos; Harris, Ian; Hauck, Judith; Haverd, Vanessa; Hoppema, Mario; Goldewijk, Kees Klein; Jain, Atul K.; Kato, Etsushi; Koertzinger, Arne; Landschuetzer, Peter; Lefevre, Nathalie; Lenton, Andrew; Lienert, Sebastian; Lombardozzi, Danica; Melton, Joe R.; Metzl, Nicolas; Millero, Frank; Monteiro, Pedro M. S.; Munro, David R.; Nabel, Julia E. M. S.; Nakaoka, Shin-ichiro; O'Brien, Kevin; Olsen, Are; Omar, Abdirahman M.; Ono, Tsuneo; Pierrot, Denis; Poulter, Benjamin; Roedenbeck, Christian; Salisbury, Joe; Schuster, Ute; Schwinger, Joerg; Seferian, Roland; Skjelvan, Ingunn; Stocker, Benjamin D.; Sutton, Adrienne J.; Takahashi, Taro; Tian, Hanqin; Tilbrook, Bronte; Van Der Laan-luijkx, Ingrid T.; Van Der Werf, Guido R.; Viovy, Nicolas; Walker, Anthony P.; Wiltshire, Andrew J.; Zaehle, Soenke. |
| Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere - the "global carbon budget" - is important to better understand the global carbon cycle, support the development of climate policies, and project future climate change. Here we describe data sets and methodology to quantify all major components of the global carbon budget, including their uncertainties, based on the combination of a range of data, algorithms, statistics, and model estimates and their interpretation by a broad scientific community. We discuss changes compared to previous estimates and consistency within and among components, alongside methodology and data limitations. CO2 emissions from fossil... |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00383/49401/49899.pdf |
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| Xue, Liang; Cai, Wei-jun; Takahashi, Taro; Gao, Libao; Wanninkhof, Rik; Wei, Meng; Li, Kuiping; Feng, Lin; Yu, Weidong. |
| While the effects of the Southern Annular Mode (SAM), a dominant climate variability mode in the Southern Ocean, on ocean acidification have been examined using models, no consensus has been reached. Using observational data from south of Tasmania, we show that during a period with positive SAM trends, surface water pH and aragonite saturation state at 60 degrees-55 degrees S (Antarctic Zone) decrease in austral summer at rates faster than those predicted from atmospheric CO2 increase alone, whereas an opposite pattern is observed at 50 degrees-45 degrees S (Subantarctic Zone). Together with other processes, the enhanced acidification at 60 degrees-55 degrees S may be attributed to increased westerly winds that bring in more "acidified" waters from the... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00673/78486/80834.pdf |
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| Wanninkhof, Rik; Pickers, Penelope A.; Omar, Abdirahman M.; Sutton, Adrienne; Murata, Akihiko; Olsen, Are; Stephens, Britton B.; Tilbrook, Bronte; Munro, David; Pierrot, Denis; Rehder, Gregor; Magdalena Santana-casiano, J.; Mueller, Jens D.; Trinanes, Joaquin; Tedesco, Kathy; O'Brien, Kevin; Currie, Kim; Barberols, Leticia; Telszewski, Maciej; Hoppema, Mario; Ishii, Masao; Gonzalez-davila, Melchor; Bates, Nicholas R.; Metzl, Nicolas; Suntharalingam, Parvadha; Feely, Richard A.; Nakaoka, Shin-ichiro; Lauvset, Siv K.; Takahashi, Taro; Steinhoff, Tobias; Schuster, Ute. |
| The Surface Ocean CO2 NETwork (SOCONET) and atmospheric Marine Boundary Layer (MBL) CO2 measurements from ships and buoys focus on the operational aspects of measurements of CO2 in both the ocean surface and atmospheric MBLs. The goal is to provide accurate pCO(2) data to within 2 micro atmosphere (mu atm) for surface ocean and 0.2 parts per million (ppm) for MBL measurements following rigorous best practices, calibration and intercomparison procedures. Platforms and data will be tracked in near real-time and final quality-controlled data will be provided to the community within a year. The network, involving partners worldwide, will aid in production of important products such as maps of monthly resolved surface ocean CO2 and air-sea CO2 flux... |
| Tipo: Text |
Palavras-chave: Carbon dioxide; Network; Oceanography; Fluxes; Best practices. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00675/78725/80992.pdf |
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| Bakker, Dorothee C. E.; Pfeil, Benjamin; Landa, Camilla S.; Metzl, Nicolas; O'Brien, Kevin M.; Olsen, Are; Smith, Karl; Cosca, Cathy; Harasawa, Sumiko; Jones, Stephen D.; 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, Frederic; 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; Goyet, Catherine; Greenwood, Naomi; Gregor, Luke; Hankin, Steven; Hardman-mountford, Nick J.; Harlay, Jerome; Hauck, Judith; Hoppema, Mario; Humphreys, Matthew P.; Hunt, Christopherw.; Huss, Betty; Ibanhez, J. Severino P.; Johannessen, Truls; Keeling, Ralph; Kitidis, Vassilis; Koertzinger, Arne; Kozyr, Alex; Krasakopoulou, Evangelia; Kuwata, Akira; Landschuetzer, Peter; Lauvset, Siv K.; 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 M.; Ono, Tsuneo; Paterson, Kristina; Pearce, David; 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. |
| The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO(2) (fugacity of carbon dioxide) values for the global surface oceans and coastal seas with regular updates. Version 3 of SOCAT has 14.7 million fCO(2) values from 3646 data sets covering the years 1957 to 2014. This latest version has an additional 4.6 million fCO(2) values relative to version 2 and extends the record from 2011 to 2014. Version 3 also significantly increases the data availability for 2005 to 2013. SOCAT has an average of approximately 1.2 million surface water fCO(2) values per year for the years 2006 to 2012. Quality and documentation of the data has improved. A new feature is the data set quality control (QC) flag of E for data from alternative sensors and... |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00383/49405/49890.pdf |
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| Fay, Amanda R.; Lovenduski, Nicole S.; Mckinley, Galen A.; Munro, David R.; Sweeney, Colm; Gray, Alison R.; Landschuetzer, Peter; Stephens, Britton B.; Takahashi, Taro; Williams, Nancy. |
| The Southern Ocean is highly under-sampled for the purpose of assessing total carbon uptake and its variability. Since this region dominates the mean global ocean sink for anthropogenic carbon, understanding temporal change is critical. Underway measurements of pCO(2) collected as part of the Drake Passage Time-series (DPT) program that began in 2002 inform our understanding of seasonally changing air-sea gradients in pCO(2), and by inference the carbon flux in this region. Here, we utilize available pCO(2) observations to evaluate how the seasonal cycle, interannual variability, and long-term trends in surface ocean pCO(2) in the Drake Passage region compare to that of the broader subpolar Southern Ocean. Our results indicate that the Drake Passage is... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00673/78488/80826.pdf |
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| Ko, Young Ho; Lee, Kitack; Takahashi, Taro; Karl, David M.; Kang, Sung-ho; Lee, Eunil. |
| Accurate estimation of net community production (NCP) in the ocean is important for determining the future trend for carbon dioxide concentrations in the atmosphere and thus for understanding the global carbon cycle and climate change. Most methods for measuring NCP rely on analysis of dissolved fixed inorganic nitrogen species (N), which are believed to be limiting factors for NCP. However, in the vast areas of the ocean gyres only low levels of N are available for phytoplankton during much of the year. In this study the NCP was estimated by summing the seasonal reduction in the concentration of dissolved inorganic carbon (C-T) in the surface mixed layer, corrected for changes associated with salinity variation, net air-sea CO2 flux, horizontal C... |
| Tipo: Text |
Palavras-chave: Net community production; Nitrogen fixation; Seasonal carbon drawdown; Oligotrophic ocean gyre. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00675/78683/80864.pdf |
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| Takahashi, Taro; Sutherland, S. C.; Chipman, D. W.; Goddard, J. G.; Ho, Cheng; Newberger, Timothy; Sweeney, Colm; Munro, D. R.. |
| Climatological mean monthly distributions of pH in the total H+ scale, total CO2 concentration (TCO2), and the degree of CaCO3 saturation for the global surface ocean waters (excluding coastal areas) are calculated using a data set for pCO(2), alkalinity and nutrient concentrations in surface waters (depths <50 m), which is built upon the GLODAP, CARINA and LDEO databases. The mutual consistency among these measured parameters is demonstrated using the inorganic carbon chemistry model with the dissociation constants for carbonic acid by Lueker et al. (2000) and for boric acid by Dickson (1990). Linear potential alkalinity-salinity relationships are established for 24 regions of the global ocean. The mean monthly distributions of pH and carbon chemistry... |
| Tipo: Text |
Palavras-chave: Global ocean; Surface water; PH; Carbonate chemistry; Climatology; Seasonal and decadal change. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00290/40098/38796.pdf |
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| Le Quere, Corinne; Takahashi, Taro; Buitenhuis, Erik T.; Roedenbeck, Christian; Sutherland, Stewart C.. |
| About one quarter of the CO2 emitted to the atmosphere by human activities is absorbed annually by the ocean. All the processes that influence the oceanic uptake of CO2 are controlled by climate. Hence changes in climate (both natural and human-induced) are expected to alter the uptake of CO2 by the ocean. However, available information that constrains the direction, magnitude, or rapidity of the response of ocean CO2 to changes in climate is limited. We present an analysis of oceanic CO2 trends for 1981 to 2007 from data and a model. Our analysis suggests that the global ocean responded to recent changes in climate by outgassing some preindustrial carbon, in part compensating the oceanic uptake of anthropogenic CO2. Using a model, we estimate that climate... |
| Tipo: Text |
Palavras-chave: Ocean; Carbon; CO2 sink. |
| Ano: 2010 |
URL: https://archimer.ifremer.fr/doc/00253/36412/34957.pdf |
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| Gruber, Nicolas; Gloor, Manuel; Fletcher Mikaloff, Sara E.; Doney, Scott C.; Dutkiewicz, Stephanie; Follows, Michael J.; Gerber, Markus; Jacobson, Andrew R.; Joos, Fortunat; Lindsay, Keith; Menemenlis, Dimitris; Mouchet, Anne; Mueller, Simon A.; Sarmiento, Jorge L.; Takahashi, Taro. |
| We synthesize estimates of the contemporary net air-sea CO2 flux on the basis of an inversion of interior ocean carbon observations using a suite of 10 ocean general circulation models (Mikaloff Fletcher et al., 2006, 2007) and compare them to estimates based on a new climatology of the air-sea difference of the partial pressure of CO2 (pCO(2)) (Takahashi et al., 2008). These two independent flux estimates reveal a consistent description of the regional distribution of annual mean sources and sinks of atmospheric CO2 for the decade of the 1990s and the early 2000s with differences at the regional level of generally less than 0.1 Pg C a(-1). This distribution is characterized by outgassing in the tropics, uptake in midlatitudes, and comparatively small... |
| Tipo: Text |
Palavras-chave: Air-sea carbon flux; Carbon flux; Anthropogenic CO2. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00253/36415/34953.pdf |
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| Reverdin, Gilles; Metzl, Nicolas; Olafsdottir, Solveig; Racape, Virginie; Takahashi, Taro; Benetti, Marion; Valdimarsson, Hedinn; Benoit-cattin, Alice; Danielsen, Magnus; Fin, Jonathan; Naamar, Aicha; Pierrot, Denis; Sullivan, Kevin; Bringas, Francis; Goni, Gustavo. |
| This paper presents the SURATLANT data set (SURveillance ATLANTique). It consists of individual data of temperature, salinity, parameters of the carbonate system, nutrients, and water stable isotopes (delta O-18 and delta D) collected mostly from ships of opportunity since 1993 along transects between Iceland and New-foundland (https://doi.org/10.17882/54517). We discuss how the data are validated and qualified, their accuracy, and the overall characteristics of the data set. The data are used to reconstruct seasonal cycles and interannual anomalies, in particular of sea surface salinity (S SS); inorganic nutrients; dissolved inorganic carbon (DIC); and its isotopic composition delta C-13(DIC), total alkalinity (A(t)), and water isotope concentrations.... |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00466/57721/59911.pdf |
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| Achberger, Christine; Ackerman, Steven A.; Ahlstrom, A.; Alfaro, Eric J.; Allan, Robert J.; Alves, Robert J.; Amador, Jorge A.; Amelie, Vincent; Andrianjafinirina, Solonomenjanahary; Antonov, John; Arndt, Derek S.; Ashik, Igor; Atheru, Zachary; Attaher, Samar M.; Baez, Julian; Banzon, Viva; Baringer, Molly O.; Barreira, Sandra; Barriopedro, David; Barthia, Pawan K.; Beal, Lisa M.; Becker, Andreas; Behrenfeld, Michael J.; Bell, Gerald D.; Belward, Alan S.; Benedetti, Angela; Berrisford, Paul; Berry, David I.; Beszczynska-moeller, Agnieszka; Bhatt, Uma S.; Bidegain, Mario; Bindoff, Nathaniel L.; Bissolli, Peter; Blake, Eric S.; Blunden, Jessica; Booneeady, Prithiviraj; Bosilovich, Michael G.; Boudet, Dagne R.; Box, Jason E.; Boyer, Timothy P.; Bromwich, David H.; Brown, Ross; Bryden, Harry L.; Bulygina, Olga N.; Burrows, John; Butler, J.; Cais, Philippe; Calderon, Blanca; Callaghan, T. V.; Camargo, Suzana J.; Cappelen, John; Carmack, Eddy; Chambers, Don P.; Chelliah, Muthuvel; Chidichimo, Maria P.; Christiansen, H.; Christy, John; Coehlo, Caio A. S.; Colwell, Steve; Comiso, Josefino C.; Compo, Gilber P.; Crouch, Jake; Cunningham, Stuart A.; Cutie, Virgen C.; Dai, Aiguo; Davydova-belitskaya, Valentina; De Jeu, Richard; Decker, David; Dee, Dick; Demircan, M.; Derksen, Chris; Diamond, Howard J.; Dlugokencky, Howard; Dohan, Kathleen; Dolman, A. Johannes; Dorigo, Wouter; Drozdov, Dmitry S.; Durack, Paul J.; Dutton, Geoffrey S.; Easterling, David; Ebita, Ayataka; Eischeid, Jon; Elkins, James W.; Epstein, Howard E.; Euscategui, Christian; Faijka-williams, Eleanor; Famiglietti, James S.; Faniriantsoa, Rija; Feely, Richard A.; Fekete, Balazs M.; Fenimore, Chris; Fettweis, Xavier; Field, Eric; Fioletov, Vitali E.; Fogarty, Vitali E.; Fogt, Ryan L.; Forbes, B. C.; Foster, Michael J.; Frajka-williams, E.; Free, Melissa; Frolov, Ivan; Ganesan, A. L.; Ganter, Catherine; Gibney, Ethan J.; Gill, Stephen; Gill, M.; Gitau, Wilson; Gleason, Karin L.; Gobron, Nadine; Goldenberg, Stanley B.; Goni, Gustavo J.; Gonzalez, Idelmis G.; Good, Simon A.; Gottschalck, Jonathan; Gould, William A.; Gouveia, Celia M.; Griffiths, Georgina M.; Guard, Chip; Guevara, Vladimir V.; Haas, C.; Hall, Bradley D.; Halpert, Michael S.; Heidinger, Andrew K.; Heil, A.; Heim, Richard R., Jr.; Hennon, Paula A.; Henry, Greg H. R.; Hidalgo, Hugo G.; Hilburn, Kyle; Hirschi, Joel J. M.; Ho, Shu-peng; Hobgood, Jay S.; Hoerling, Martin; Holgate, Simon; Hook, Simon J.; Hugony, Sebastien; Hurst, D.; Ishihara, Hiroshi; Itoh, M.; Jaimes, Ena; Jeffries, Martin; Jia, Gensu J.; Jin, Xiangze; John, William E.; Johnson, Bryan; Johnson, Gregory C.; Jones, Philip D.; Jumaux, Guillaume; Kabidi, Khadija; Kaiser, Johannes W.; Kanzow, Torsten O.; Kaplan, Alexey; Kearns, Edward J.; Keller, Linda M.; Kennedy, John J.; Khatiwala, Samar; Kholodov, Alexander; Khoshkam, Mahbobeh; Kikuchi, T.; Kimberlain, Todd B.; Knaff, John A.; Kobayashi, Shinya; Kokelj, Steve V.; Korshunova, Natalia N.; Kratz, David P.; Krishfield, Richard; Kruger, Andries; Kruk, Michael C.; Kumar Arun,; Lammers, Richard B.; Lander, Mark A.; Landsea, Chris W.; Lantuit, Hugues; Lantz, Trevor C.; Lapinel, Braulio P.; Lareef, Zubair; Lazzara, Matthew A.; Leon, Antonia L; Leon, Gloria; Lauliette, Eric; Levitus, Sydney; Levy, Joel M.; L'Heureux, Michelle; Lin, I. I.; Liu, Hongxing; Liu, Yanju; Liu, Yi; Loeb, Norman G.; Long, Craig S.; Lorrey, Andrew M.; Lumpkin, Rick; Luo, Jing-jia; Lyman, John M.; Macdonald, Alison M.; Maddux, Brent C.; Maier, Frank; Malkova, Galina; Marchenko, Sergey; Marengo, Jose A.; Maritorena, Stephane; Marotzke, Jochem; Martinez Guingla, Rodney; Maslanik, Jochem; Masson, Robert A.; Mcbride, Charlotte; Mcgree, Simon; Mclaughlin, Fiona; Mcpeters, Rich; Mcvicar, Tim R.; Mears, Carl A.; Medany, Mahmoud A.; Meier, Walt; Meinen, Christopher S.; Merrifield, Mark A.; Miller, Laury; Mitchum, Gary T.; Montzka, Steve; Morcrette, Jean-jacques; Mote, Thomas; Muhle, Jens; Mullan, A. Brett; Murray, Don; Nash, Eric R.; Nerem, Steven R.; Newman, Paul A.; Nishino, S.; Njau, Leonard; Noetzli, J.; Oberbauer, S. F.; Oberman, Naum; Obregon, Andre; Ogallo, Laban; Oludhe, Christopher; O'Malley, Robert T.; Overland, James; Park, Geun-ha; Parker, David E.; Pasch, Richard J.; Pegion, Phil; Peltier, Alexandre; Pelto, Mauri S.; Penalba, Olga C.; Perez, Ramon S; Perlwitz, Judith; Perovich, Donald; Peterson, Thomas C.; Pezza, Alexandre B.; Phillips, David; Pinzon, Jorge E.; Pitts, Michael C.; Proshutinsky, A.; Quegan, S.; Quintana, Juan; Quintero, Alexander; Rabe, B.; Rahimzadeh, Fatemeh; Rajeevan, Madhavan; Rayner, Darren; Rayner, Nick A.; Raynolds, Martha K.; Razuvaev, Vyacheslav N.; Reagan, James R.; Reid, Phillip; Renwick, James A.; Revadekar, Jayashree; Reynolds, Richard W.; Richter-menge, Jacqueline; Rignot, Eric; Robinson, David A.; Rodell, Matthew; Rogers, Mark; Romanovsky, Vladimir; Romero-cruz, Fernando; Ronchail, Josyane; Rosenlof, Karen; Rossi, Shawn; Rutledge, Glenn; Saatchi, Sassan; Sabine, Christopher L.; Saha, Suranjana; Sanchez-lugo, Ahira; Santee, Michelle L.; Sato, Hitoshi; Sawaengphokhai, P.; Sayouri, Amal; Scambos, Ted A.; Schauer, U.; Schemm, Jae; Schmid, Claudia; Schneider, Philipp; Schueller, Dominique; Sensoy, Serhat; Sharp, Martin; Shaver, Gus R.; Shiklomanov, Alexander; Shiklomanov, N.; Shimada, Koji; Siegel, David A.; Simmons, Adrian; Skansi, Maria; Smith, Adam; Smith, Cathy; Smith, S.; Smith, Thomas M.; Sokolov, Vladimir; Spence, Jacqueline M.; Srivastava, Arvind Kumar; Stackhouse, Paul W., Jr.; Stammerjohn, Sharon; Steele, Mike; Steinbrecht, Wolfgang; Stephenson, Tannecia S.; Stolarski, Richard S.; Tahani, Lloyd; Takahashi, Taro; Taylor, Michael A.; Thepaut, Jean-noel; Thiaw, Wassila M.; Thorne, Peter W.; Timmermans, M. L.; Tobin, Skie; Toole, John; Trewin, Blair C.; Trigo, Ricardo M.; Tucker, Compton J.; Tweedie, Craig E.; Van As, D.; Van De Wal, R. S. W.; Van Der A, Ronald J.; Van Der Werf, G. R.; Vautard, Robert; Vieira, G.; Vincent, Lucie A.; Vinther, Lucie A.; Vinther, B.; Vose, Russell; Wagner, Wolfgang; Wahr, John; Walker, David A.; Walsh, John; Wang, Chunzai; Wang, Junhong; Wang, Lei; Wang, Muyin; Wang, Sheng-hung; Wanninkhof, Rik; Weaver, Scott; Webber, Patrick J.; Weber, Mark; Weller, Robert A.; Weyman, James; Whitewood, Robert; Wijffels, Susan E.; Wilber, Anne C.; Willett, Katharine M.; Williams, W.; Willis, Joshua K.; Wolken, Gabriel; Wong, Takmeng; Woodgate, Rebecca; Woodworth, Philip; Wovrosh, Alex J.; Xue, Yan; Yamamoto-kawai, M.; Yin, Xungang; Yu, Lisan; Zhang, Liangying; Zhang, Peiqun; Zhao, L.; Zhou, Xinjia; Zimmermann, S.. |
| Several large-scale climate patterns influenced climate conditions and weather patterns across the globe during 2010. The transition from a warm El Nino phase at the beginning of the year to a cool La Nina phase by July contributed to many notable events, ranging from record wetness across much of Australia to historically low Eastern Pacific basin and near-record high North Atlantic basin hurricane activity. The remaining five main hurricane basins experienced below-to well-below-normal tropical cyclone activity. The negative phase of the Arctic Oscillation was a major driver of Northern Hemisphere temperature patterns during 2009/10 winter and again in late 2010. It contributed to record snowfall and unusually low temperatures over much of northern... |
| Tipo: Text |
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| Ano: 2011 |
URL: https://archimer.ifremer.fr/doc/00660/77164/78582.pdf |
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| Le Quere, Corinne; Raupach, Michael R.; Canadell, Josep G.; Marland, Gregg; Bopp, Laurent; Ciais, Philippe; Conway, Thomas J.; Doney, Scott C.; Feely, Richard A.; Foster, Pru; Friedlingstein, Pierre; Gurney, Kevin; Houghton, Richard A.; House, Joanna I.; Huntingford, Chris; Levy, Peter E.; Lomas, Mark R.; Majkut, Joseph; Metzl, Nicolas; Ometto, Jean P.; Peters, Glen P.; Prentice, I. Colin; Randerson, James T.; Running, Steven W.; Sarmiento, Jorge L.; Schuster, Ute; Sitch, Stephen; Takahashi, Taro; Viovy, Nicolas; Van Der Werf, Guido R.; Woodward, F. Ian. |
| Efforts to control climate change require the stabilization of atmospheric CO2 concentrations. This can only be achieved through a drastic reduction of global CO2 emissions. Yet fossil fuel emissions increased by 29% between 2000 and 2008, in conjunction with increased contributions from emerging economies, from the production and international trade of goods and services, and from the use of coal as a fuel source. In contrast, emissions from land-use changes were nearly constant. Between 1959 and 2008, 43% of each year's CO2 emissions remained in the atmosphere on average; the rest was absorbed by carbon sinks on land and in the oceans. In the past 50 years, the fraction of CO2 emissions that remains in the atmosphere each year has likely increased, from... |
| Tipo: Text |
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| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00218/32907/31397.pdf |
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| Takahashi, Taro; Sweeney, Colm; Hales, Burke; Chipman, David W.; Newberger, Timothy; Goddard, John G.; Iannuzzi, Richard A.; Sutherland, Stewart C.. |
| Various human activities, including fossil fuel combustion and forest clearing, emit about eight petagrams (or billion tons) of carbon in the form of CO2 into the atmosphere annually. The global ocean absorbs about two petagrams of CO2, and about a half of that amount is absorbed by the Southern Ocean south of 30°S, thus slowing the rapid accumulation of CO2 in the atmosphere. Partial pressure of CO2 (pCO2) is a measure of the chemical driving force for the CO2 exchange between the ocean and the atmosphere. This paper discusses its space and time distribution over the Southern Ocean. The major sink zone for atmospheric CO2 is located in a latitude belt between 30°S and 50°S, where the biological utilization of CO2 and cooling of warm subtropical waters... |
| Tipo: Text |
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| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00140/25171/23277.pdf |
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| Landschutzer, Peter; Gruber, Nicolas; Haumann, Alexander; Rodenbeck, Christian; Bakker, Dorothee C. E.; Van Heuven, Steven; Hoppema, Mario; Metzl, Nicolas; Sweeney, Colm; Takahashi, Taro; Tilbrook, Bronte; Wanninkhof, Rik. |
| Several studies have suggested that the carbon sink in the Southern Ocean-the ocean's strongest region for the uptake of anthropogenic CO2-has weakened in recent decades. We demonstrated, on the basis of multidecadal analyses of surface ocean CO2 observations, that this weakening trend stopped around 2002, and by 2012 the Southern Ocean had regained its expected strength based on the growth of atmospheric CO2. All three Southern Ocean sectors have contributed to this reinvigoration of the carbon sink, yet differences in the processes between sectors exist, related to a tendency toward a zonally more asymmetric atmospheric circulation. The large decadal variations in the Southern Ocean carbon sink suggest a rather dynamic ocean carbon cycle that varies more... |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00292/40366/38974.pdf |
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| Broullon, Daniel; Perez, Iz F; Velo, Anton; Hoppema, Mario; Olsen, Are; Takahashi, Taro; Key, Robert M.; Tanhua, Toste; Magdalena Santana-casiano, J.; Kozyr, Alex. |
| Anthropogenic emissions of CO2 to the atmosphere have modified the carbon cycle for more than 2 centuries. As the ocean stores most of the carbon on our planet, there is an important task in unraveling the natural and anthropogenic processes that drive the carbon cycle at different spatial and temporal scales. We contribute to this by designing a global monthly climatology of total dissolved inorganic carbon (TCO2), which offers a robust basis in carbon cycle modeling but also for other studies related to this cycle. A feedforward neural network (dubbed NNGv2LDEO) was configured to extract from the Global Ocean Data Analysis Project version 2.2019 (GLODAPv2.2019) and the Lamont-Doherty Earth Observatory (LDEO) datasets the relations between TCO2 and a set... |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00676/78830/81115.pdf |
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| Registros recuperados: 15 | |
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