Consulta: creatorFacets:"Johnson, Kenneth S."
Registros recuperados: 9
Data/hora: 06/06/2024 07:55:21

State of the Climate in 2016
Provedor de dados: 5
Autores: Arndt, D. S.; Blunden, J.; Dunn, R. J. H.; Aaron-morrison, Arlene P.; Abdallah, A.; Ackerman, Steven A.; Adler, Robert; Alfaro, Eric J.; Allan, Richard P.; Allan, Rob; Alvarez, Luis A.; Alves, Lincoln M.; Amador, Jorge A.; Andreassen, L. M.; Arce, Dayana; Argueez, Anthony; Arndt, Derek S.; Arzhanova, N. M.; Augustine, John; Awatif, E. M.; Azorin-molina, Cesar; Baez, Julian; Bardin, M. U.; Barichivich, Jonathan; Baringer, Molly O.; Barreira, Sandra; Baxter, Stephen; Beck, H. E.; Becker, Andreas; Bedka, Kristopher M.; Behrenfeld, Michael J.; Bell, Gerald D.; Belmont, M.; Benedetti, Angela; Bernhard, G. H.; Berrisford, Paul; Berry, David I.; Bettolli, Maria L.; Bhatt, U. S.; Bidegain, Mario; Biskaborn, B.; Bissolli, Peter; Bjerke, J.; Blake, Eric S.; Blunden, Jessica; Bosilovich, Michael G.; Boucher, Olivier; Boudet, Dagne; Box, J. E.; Boyer, Tim; Braathen, Geir O.; Brimelow, Julian; Bromwich, David H.; Brown, R.; Buehler, S.; Bulygina, Olga N.; Burgess, D.; Calderon, Blanca; Camargo, Suzana J.; Campbell, Jayaka D.; Cappelen, J.; Caroff, P.; Carrea, Laura; Carter, Brendan R.; Chambers, Don P.; Chandler, Elise; Cheng, Ming-dean; Christiansen, Hanne H.; Christy, John R.; Chung, Daniel; Chung, E. -s.; Clem, Kyle R.; Coelho, Caio A. S.; Coldewey-egbers, Melanie; Colwell, Steve; Cooper, Owen R.; Copland, L.; Cross, J. N.; Crouch, Jake; Cutie, Virgen; Davis, Sean M.; De Eyto, Elvira; De Jeu, Richard A. M.; De Laat, Jos; Degasperi, Curtis L.; Degenstein, Doug; Demircan, M.; Derksen, C.; Di Girolamo, Larry; Diamond, Howard J.; Dindyal, S.; Dlugokencky, Ed J.; Dohan, Kathleen; Dokulil, Martin T.; Dolman, A. Johannes; Domingues, Catia M.; Donat, Markus G.; Dong, Shenfu; Dorigo, Wouter A.; Drozdov, D. S.; Dunn, Robert J. H.; Duran-quesada, Ana M.; Dutton, Geoff S.; Elkharrim, M.; Elkins, James W.; Epstein, H. E.; Espinoza, Jhan C.; Etienne-leblanc, Sheryl; Famiglietti, James S.; Farrell, S.; Fateh, S.; Fausto, R. S.; Feely, Richard A.; Feng, Z.; Fenimore, Chris; Fettweis, X.; Fioletov, Vitali E.; Flannigan, Mike; Flemming, Johannes; Fogt, Ryan L.; Folland, Chris; Fonseca, C.; Forbes, B. C.; Foster, Michael J.; Francis, S. D.; Franz, Bryan A.; Frey, Richard A.; Frith, Stacey M.; Froidevaux, Lucien; Ganter, Catherine; Gerland, S.; Gilson, John; Gobron, Nadine; Goldenberg, Stanley B.; Goni, Gustavo; Gonzalez, Idelmis T.; Goto, A.; Greenhough, Marianna D.; Grooss, J. -u.; Gruber, Alexander; Guard, Charles; Gupta, S. K.; Gutierrez, J. M.; Haas, C.; Hagos, S.; Hahn, Sebastian; Haimberger, Leo; Hall, Brad D.; Halpert, Michael S.; Hamlington, Benjamin D.; Hanna, E.; Hanssen-bauer, I; Hare, Jon; Harris, Ian; Heidinger, Andrew K.; Heim, Richard R., Jr.; Hendricks, S.; Hernandez, Marieta; Hernandez, Rafael; Hidalgo, Hugo G.; Ho, Shu-peng; Hobbs, William R.; Huang, Boyin; Huelsing, Hannah K.; Hurst, Dale F.; Ialongo, I.; Ijampy, J. A.; Inness, Antje; Isaksen, K.; Ishii, Masayoshi; Jevrejeva, Svetlana; Jimenez, C.; Jin Xiangze,; John, Viju; Johns, William E.; Johnsen, B.; Johnson, Bryan; Johnson, Gregory C.; Johnson, Kenneth S.; Jones, Philip D.; Jumaux, Guillaume; Kabidi, Khadija; Kaiser, J. W.; Kass, David; Kato, Seiji; Kazemi, A.; Kelem, G.; Keller, Linda M.; Kelly, B. P.; Kendon, Mike; Kennedy, John; Kerr, Kenneth; Kholodov, A. L.; Khoshkam, Mahbobeh; Killick, Rachel; Kim, Hyungjun; Kim, S. -j.; Kimberlain, Todd B.; Klotzbach, Philip J.; Knaff, John A.; Kochtubajda, Bob; Kohler, J.; Korhonen, Johanna; Korshunova, Natalia N.; Kramarova, Natalya; Kratz, D. P.; Kruger, Andries; Kruk, Michael C.; Krumpen, T.; Lakatos, M.; Lakkala, K.; Lanckmann, J. -p.; Lander, Mark A.; Landschuetzer, Peter; Landsea, Chris W.; Lankhorst, Matthias; Lantz, Kathleen; Lazzara, Matthew A.; Leuliette, Eric; Lewis, Stephen R.; L'Heureux, Michelle; Lieser, Jan L.; Lin, I-i; Liu, Hongxing; Liu, Yinghui; Locarnini, Ricardo; Loeb, Norman G.; Long, Craig S.; Loranty, M.; Lorrey, Andrew M.; Loyola, Diego; Lu, Mong-ming; Lumpkin, Rick; Luo, Jing-jia; Luojus, K.; Lyman, John M.; Macara, Gregor; Macdonald, Alison M.; Macias-fauria, M.; Malkova, G. V.; Manney, G.; Marchenko, S. S.; Marengo, Jose A.; Marra, John J.; Marszelewski, Wlodzimierz; Martens, B.; Martinez-gueingla, Rodney; Massom, Robert A.; Mathis, Jeremy T.; May, Linda; Mayer, Michael; Mazloff, Matthew; Mcbride, Charlotte; Mccabe, M. F.; Mccarthy, Gerard; Mccarthy, M.; Mcdonagh, Elaine L.; Mcgree, Simon; Mcvicar, Tim R.; Mears, Carl A.; Meier, W.; Mekonnen, A.; Menezes, V. V.; Mengistu Tsidu, G.; Menzel, W. Paul; Merchant, Christopher J.; Meredith, Michael P.; Merrifield, Mark A.; Minnis, Patrick; Miralles, Diego G.; Mistelbauer, T.; Mitchum, Gary T.; Mitro, Srkani; Monselesan, Didier; Montzka, Stephen A.; Mora, Natalie; Morice, Colin; Morrow, Blair; Mote, T.; Mudryk, L.; Muehle, Jens; Mullan, A. Brett; Mueller, R.; Nash, Eric R.; Nerem, R. Steven; Newman, Louise; Newman, Paul A.; Nieto, Juan Jose; Noetzli, Jeannette; O'Neel, S.; Osborn, Tim J.; Overland, J.; Oyunjargal, Lamjav; Parinussa, Robert M.; Park, E-hyung; Pasch, Richard J.; Pascual-ramirez, Reynaldo; Paterson, Andrew M.; Pearce, Petra R.; Pellichero, Violaine; Pelto, Mauri S.; Peng, Liang; Perkins-kirkpatrick, Sarah E.; Perovich, D.; Petropavlovskikh, Irina; Pezza, Alexandre B.; Phillips, C.; Phillips, David; Phoenix, G.; Pinty, Bernard; Pitts, Michael C.; Pons, M. R.; Porter, Avalon O.; Quintana, Juan; Rahimzadeh, Fatemeh; Rajeevan, Madhavan; Rayner, Darren; Raynolds, M. K.; Razuvaev, Vyacheslav N.; Read, Peter; Reagan, James; Reid, Phillip; Reimer, Christoph; Remy, Samuel; Renwick, James A.; Revadekar, Jayashree V.; Richter-menge, J.; Rimmer, Alon; Robinson, David A.; Rodell, Matthew; Rollenbeck, Ruetger; Romanovsky, Vladimir E.; Ronchail, Josyane; Roquet, F.; Rosenlof, Karen H.; Roth, Chris; Rusak, James A.; Sallee, Jean-bapiste; Sanchez-lugo, Ahira; Santee, Michelle L.; Sarmiento, Jorge L.; Sawaengphokhai, P.; Sayouri, Amal; Scambos, Ted A.; Schemm, Jae; Schladow, S. Geoffrey; Schmid, Claudia; Schmid, Martin; Schoeneich, P.; Schreck, Carl J., Iii; Schuur, Ted; Selkirk, H. B.; Send, Uwe; Sensoy, Serhat; Sharp, M.; Shi, Lei; Shiklomanov, Nikolai I.; Shimaraeva, Svetlana V.; Siegel, David A.; Signorini, Sergio R.; Silov, Eugene; Sima, Fatou; Simmons, Adrian J.; Smeed, David A.; Smeets, C. J. P. P.; Smith, Adam; Smith, Sharon L.; Soden, B.; Spence, Jaqueline M.; Srivastava, A. K.; Stackhouse, Paul W., Jr.; Stammerjohn, Sharon; Steinbrecht, Wolfgang; Stella, Jose L.; Stennett-brown, Roxann; Stephenson, Tannecia S.; Strahan, Susan; Streletskiy, Dimitri A.; Sun-mack, Sunny; Swart, Sebastiaan; Sweet, William; Tamar, Gerard; Taylor, Michael A.; Tedesco, M.; Thoman, R. L.; Thompson, L.; Thompson, Philip R.; Timmermans, M. -l.; Timofeev, Maxim A.; Tirnanes, Joaquin A.; Tobin, Skie; Trachte, Katja; Trewin, Blair C.; Trotman, Adrian R.; Tschudi, M.; Tweedy, Olga; Van As, D.; Van De Wal, R. S. W.; Van Der Schalie, Robin; Van Der Schrier, Gerard; Van Der Werf, Guido R.; Van Meerbeeck, Cedric J.; Velicogna, I.; Verburg, Piet; Vieira, G.; Vincent, Lucie A.; Voemel, Holger; Vose, Russell S.; Wagner, Wolfgang; Wahlin, Anna; Walker, D. A.; Walsh, J.; Wang, Bin; Wang, Chunzai; Wang, Junhong; Wang, Lei; Wang, M.; Wang, Sheng-hung; Wanninkhof, Rik; Watanabe, Shohei; Weber, Mark; Weller, Robert A.; Weyhenmeyer, Gesa A.; Whitewood, Robert; Wiese, David N.; Wijffels, Susan E.; Wilber, Anne C.; Wild, Jeanette D.; Willett, Kate M.; Willie, Shem; Willis, Josh K.; Wolken, G.; Wong, Takmeng; Wood, E. F.; Woolway, R. Iestyn; Wouters, B.; Xue, Yan; Yim, So-young; Yin, Xungang; Yu, Lisan; Zambrano, Eduardo; Zhang, Huai-min; Zhang, Peiqun; Zhao, Guanguo; Zhao, Lin; Ziemke, Jerry R.; Zilberman, Nathalie.
In 2016, the dominant greenhouse gases released into Earth's atmosphere-carbon dioxide, methane, and nitrous oxide-continued to increase and reach new record highs. The 3.5 +/- 0.1 ppm rise in global annual mean carbon dioxide from 2015 to 2016 was the largest annual increase observed in the 58-year measurement record. The annual global average carbon dioxide concentration at Earth's surface surpassed 400 ppm (402.9 +/- 0.1 ppm) for the first time in the modern atmospheric measurement record and in ice core records dating back as far as 800000 years. One of the strongest El Nino events since at least 1950 dissipated in spring, and a weak La Nina evolved later in the year. Owing at least in part to the combination of El Nino conditions early in the year and...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00673/78500/80851.pdf

Biogeochemical sensor performance in the SOCCOM profiling float array
Provedor de dados: 5
Autores: Johnson, Kenneth S.; Plant, Joshua N.; Coletti, Luke J.; Jannasch, Hans W.; Sakamoto, Carole M.; Riser, Stephen C.; Swift, Dana D.; Williams, Nancy L.; Boss, Emmanuel; Haentjens, Nils; Talley, Lynne D.; Sarmiento, Jorge L.
The Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) program has begun deploying a large array of biogeochemical sensors on profiling floats in the Southern Ocean. As of February 2016, 86 floats have been deployed. Here the focus is on 56 floats with quality-controlled and adjusted data that have been in the water at least 6 months. The floats carry oxygen, nitrate, pH, chlorophyll fluorescence, and optical backscatter sensors. The raw data generated by these sensors can suffer from inaccurate initial calibrations and from sensor drift over time. Procedures to correct the data are defined. The initial accuracy of the adjusted concentrations is assessed by comparing the corrected data to laboratory measurements made on samples collected...
Tipo: Text
Palavras-chave: Profiling floats; Oxygen sensors; PH sensors; Nitrate sensors; Bio-optical sensors; Southern Ocean.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00662/77398/78993.pdf

Reassessing Southern Ocean Air-Sea CO2 Flux Estimates With the Addition of Biogeochemical Float Observations
Provedor de dados: 5
Autores: Bushinsky, Seth M.; Landschuetzer, Peter; Roedenbeck, Christian; Gray, Alison R.; Baker, David; Mazloff, Matthew R.; Resplandy, Laure; Johnson, Kenneth S.; Sarmiento, Jorge L.
New estimates of pCO(2) from profiling floats deployed by the Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) project have demonstrated the importance of wintertime outgassing south of the Polar Front, challenging the accepted magnitude of Southern Ocean carbon uptake (Gray et al., 2018, ). Here, we put 3.5 years of SOCCOM observations into broader context with the global surface carbon dioxide database (Surface Ocean CO2 Atlas, SOCAT) by using the two interpolation methods currently used to assess the ocean models in the Global Carbon Budget (Le Quere et al., 2018, ) to create a ship-only, a float-weighted, and a combined estimate of Southern Ocean carbon fluxes (&lt;35 degrees S). In our ship-only estimate, we calculate a mean uptake...
Tipo: Text
Palavras-chave: Southern Ocean; Biogeochemical profiling floats; SOCCOM; Global carbon cycle.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00675/78719/81007.pdf

State of the Climate in 2017
Provedor de dados: 5
Autores: Arndt, D. S.; Blunden, J.; Hartfield, G.; Ackerman, Steven A.; Adler, Robert; Alfaro, Eric J.; Allan, Richard P.; Allan, Rob; Alves, Lincoln M.; Amador, Jorge A.; Andreassen, L. M.; Argueez, Anthony; Arndt, Derek S.; Azorin-molina, Cesar; Baez, Julian; Bardin, M. U.; Barichivich, Jonathan; Baringer, Molly O.; Barreira, Sandra; Baxter, Stephen; Beck, H. E.; Becker, Andreas; Bedka, Kristopher M.; Bell, Gerald D.; Belmont, M.; Benedetti, Angela; Berrisford, Paul; Berry, David I.; Bhatt, U. S.; Bissolli, Peter; Bjerke, J.; Blake, Eric S.; Bosilovich, Michael G.; Boucher, Olivier; Box, J. E.; Boyer, Tim; Braathen, Geir O.; Bromwich, David H.; Brown, R.; Buehler, S.; Bulygina, Olga N.; Burgess, D.; Calderon, Blanca; Camargo, Suzana J.; Campbell, Jayaka D.; Cappelen, J.; Carrea, Laura; Carter, Brendan R.; Chambers, Don P.; Cheng, Ming-dean; Christiansen, Hanne H.; Christy, John R.; Chung, E. -s.; Clem, Kyle R.; Coelho, Caio A. S.; Coldewey-egbers, Melanie; Colwell, Steve; Cooper, Owen R.; Copland, L.; Crouch, Jake; Davis, Sean M.; De Eyto, Elvira; De Jeu, Richard A. M.; De Laat, Jos; Degasperi, Curtis L.; Degenstein, Doug; Demircan, M.; Derksen, C.; Di Girolamo, Larry; Diamond, Howard J.; Dlugokencky, Ed J.; Dohan, Kathleen; Dokulil, Martin T.; Dolman, A. Johannes; Domingues, Catia M.; Donat, Markus G.; Dong, Shenfu; Dorigo, Wouter A.; Drozdov, D. S.; Dunn, Robert J. H.; Dutton, Geoff S.; Elkharrim, M.; Elkins, James W.; Epstein, H. E.; Espinoza, Jhan C.; Famiglietti, James S.; Farrell, S.; Fausto, R. S.; Feely, Richard A.; Feng, Z.; Fenimore, Chris; Fettweis, X.; Fioletov, Vitali E.; Flemming, Johannes; Fogt, Ryan L.; Folland, Chris; Forbes, B. C.; Foster, Michael J.; Francis, S. D.; Franz, Bryan A.; Frey, Richard A.; Frith, Stacey M.; Froidevaux, Lucien; Ganter, Catherine; Gerland, S.; Gilson, John; Gobron, Nadine; Goldenberg, Stanley B.; Goni, Gustavo; Grooss, J. -u.; Gruber, Alexander; Guard, Charles; Gupta, S. K.; Gutierrez, J. M.; Haas, C.; Hagos, S.; Hahn, Sebastian; Haimberger, Leo; Hall, Brad D.; Halpert, Michael S.; Hamlington, Benjamin D.; Hanna, E.; Hanssen-bauer, I; Harris, Ian; Heidinger, Andrew K.; Heim, Richard R., Jr.; Hendricks, S.; Hernandez, Marieta; Hernandez, Rafael; Hidalgo, Hugo G.; Ho, Shu-peng; Hobbs, William R.; Huang, Boyin; Hurst, Dale F.; Ialongo, I.; Ijampy, J. A.; Inness, Antje; Isaksen, K.; Ishii, Masayoshi; Jevrejeva, Svetlana; Jimenez, C.; Jin Xiangze,; John, Viju; Johns, William E.; Johnsen, B.; Johnson, Bryan; Johnson, Gregory C.; Johnson, Kenneth S.; Jones, Philip D.; Jumaux, Guillaume; Kabidi, Khadija; Kaiser, J. W.; Kato, Seiji; Kazemi, A.; Keller, Linda M.; Kennedy, John; Kerr, Kenneth; Kholodov, A. L.; Khoshkam, Mahbobeh; Killick, Rachel; Kim, Hyungjun; Kim, S. -j.; Klotzbach, Philip J.; Knaff, John A.; Kohler, J.; Korhonen, Johanna; Korshunova, Natalia N.; Kramarova, Natalya; Kratz, D. P.; Kruger, Andries; Kruk, Michael C.; Krumpen, T.; Lakatos, M.; Lakkala, K.; Lander, Mark A.; Landschuetzer, Peter; Landsea, Chris W.; Lankhorst, Matthias; Lazzara, Matthew A.; Leuliette, Eric; L'Heureux, Michelle; Lieser, Jan L.; Lin, I-i; Liu, Hongxing; Liu, Yinghui; Locarnini, Ricardo; Loeb, Norman G.; Long, Craig S.; Lorrey, Andrew M.; Loyola, Diego; Lumpkin, Rick; Luo, Jing-jia; Luojus, K.; Lyman, John M.; Macias-fauria, M.; Malkova, G. V.; Manney, G.; Marchenko, S. S.; Marengo, Jose A.; Marra, John J.; Marszelewski, Wlodzimierz; Martens, B.; Martinez-gueingla, Rodney; Massom, Robert A.; May, Linda; Mayer, Michael; Mazloff, Matthew; Mcbride, Charlotte; Mccabe, M. F.; Mccarthy, M.; Mcvicar, Tim R.; Mears, Carl A.; Meier, W.; Mekonnen, A.; Mengistu Tsidu, G.; Menzel, W. Paul; Merchant, Christopher J.; Meredith, Michael P.; Merrifield, Mark A.; Miralles, Diego G.; Mitchum, Gary T.; Mitro, Srkani; Monselesan, Didier; Montzka, Stephen A.; Mora, Natalie; Morice, Colin; Mote, T.; Mudryk, L.; Muehle, Jens; Mullan, A. Brett; Mueller, R.; Nash, Eric R.; Nerem, R. Steven; Newman, Louise; Newman, Paul A.; Nieto, Juan Jose; Noetzli, Jeannette; O'Neel, S.; Osborn, Tim J.; Overland, J.; Oyunjargal, Lamjav; Park, E-hyung; Pasch, Richard J.; Pascual-ramirez, Reynaldo; Paterson, Andrew M.; Pearce, Petra R.; Pelto, Mauri S.; Perkins-kirkpatrick, Sarah E.; Perovich, D.; Petropavlovskikh, Irina; Pezza, Alexandre B.; Phillips, C.; Phillips, David; Phoenix, G.; Pinty, Bernard; Rajeevan, Madhavan; Rayner, Darren; Raynolds, M. K.; Reagan, James; Reid, Phillip; Reimer, Christoph; Remy, Samuel; Revadekar, Jayashree V.; Richter-menge, J.; Rimmer, Alon; Robinson, David A.; Rodell, Matthew; Romanovsky, Vladimir E.; Ronchail, Josyane; Rosenlof, Karen H.; Roth, Chris; Rusak, James A.; Sallee, Jean-bapiste; Sanchez-lugo, Ahira; Santee, Michelle L.; Sawaengphokhai, P.; Sayouri, Amal; Scambos, Ted A.; Schladow, S. Geoffrey; Schmid, Claudia; Schmid, Martin; Schreck, Carl J., Iii; Schuur, Ted; Selkirk, H. B.; Send, Uwe; Sensoy, Serhat; Sharp, M.; Shi, Lei; Shiklomanov, Nikolai I.; Shimaraeva, Svetlana V.; Siegel, David A.; Signorini, Sergio R.; Sima, Fatou; Simmons, Adrian J.; Smeed, David A.; Smeets, C. J. P. P.; Smith, Adam; Smith, Sharon L.; Soden, B.; Spence, Jaqueline M.; Srivastava, A. K.; Stackhouse, Paul W., Jr.; Stammerjohn, Sharon; Steinbrecht, Wolfgang; Stella, Jose L.; Stephenson, Tannecia S.; Strahan, Susan; Streletskiy, Dimitri A.; Sun-mack, Sunny; Swart, Sebastiaan; Sweet, William; Tamar, Gerard; Taylor, Michael A.; Tedesco, M.; Thoman, R. L.; Thompson, L.; Thompson, Philip R.; Timmermans, M. -l.; Tobin, Skie; Trachte, Katja; Trewin, Blair C.; Trotman, Adrian R.; Tschudi, M.; Van As, D.; Van De Wal, R. S. W.; Van Der Schalie, Robin; Van Der Schrier, Gerard; Van Der Werf, Guido R.; Van Meerbeeck, Cedric J.; Velicogna, I.; Verburg, Piet; Vincent, Lucie A.; Voemel, Holger; Vose, Russell S.; Wagner, Wolfgang; Walker, D. A.; Walsh, J.; Wang, Bin; Wang, Chunzai; Wang, Junhong; Wang, Lei; Wang, M.; Wang, Sheng-hung; Wanninkhof, Rik; Watanabe, Shohei; Weber, Mark; Weller, Robert A.; Weyhenmeyer, Gesa A.; Whitewood, Robert; Wiese, David N.; Wijffels, Susan E.; Wilber, Anne C.; Wild, Jeanette D.; Willett, Kate M.; Willis, Josh K.; Wolken, G.; Wong, Takmeng; Wood, E. F.; Woolway, R. Iestyn; Wouters, B.; Xue, Yan; Yin, Xungang; Yu, Lisan; Zambrano, Eduardo; Zhang, Huai-min; Zhang, Peiqun; Zhao, Guanguo; Zhao, Lin; Ziemke, Jerry R.; Abernethy, R.; Albanil, Encarnacion Adelina; Aldeco, Laura S.; Aliaga-nestares, Vannia; Anderson, John; Armitage, C.; Avalos, Grinia; Behe, Carolina; Bellouin, Nicolas; Bernhard, G. H.; Blenkinsop, Stephen; Bolmgren, K.; Bouchon, Marilu; Campbell, Ethan C.; Castro, Anabel; Costanza, Carol; Covey, Curt; Coy, Lawrence; Cronin, T.; Cruzado, Luis; Daniel, Raychelle; Davletshin, S. G.; De La Cour, Jacqueline L.; Deline, P.; Dewitte, Boris; Dhurmea, R.; Dickerson, C.; Domingues, Ricardo; Durre, Imke; Eakin, C. Mark; Farmer, J.; Fauchald, P.; Geiger, Erick F.; Gomez, Andrea M.; Gugliemin, Mario; Hansen, K.; Helfrich, S.; Hemming, D. L.; Heron, Scott F.; Heuze, C.; Horstkotte, T.; Hubert, Daan; Hueuze, Celine; Ibrahim, M. M.; Isaac, Victor; Jacobs, Stephanie J.; Jeffries, Martin O.; Karakoylu, Erdem M.; Khan, M. S.; Ladd, C.; Lavado-casimiro, Waldo; Lee, S. -e; Lee, T. C.; Li, Bailing; Li, Tim; Lopez, Luis A.; Luthcke, S.; Marcellin, Vernie; Marin, Dora; Marsh, Benjamin L.; Martin, A; Martinez, Alejandra G.; Martinez-sanchez, Odalys; Meijers, Andrew J. S.; Miller, Ben; Moat, Ben; Mochizuki, Y.; Mosquera-vasquez, Kobi; Mostafa, Awatif E.; Nielsen-gammon, John W.; Noll, Ben E.; Osborne, Emily; Pastor, Saavedra Maria Asuncion; Paulik, Christoph; Peltier, Alexandre; Pinzon, J.; Po-chedley, S.; Polashenski, C.; Purkey, Sarah G.; Quispe, Nelson; Rakotoarimalala, C.; Richardson, A. D.; Ricker, R; Rodriguez, Camino Ernesto; Rosner, Benjamin; Roth, David Mark; Rutishauser, T.; Sasgen, L.; Sayad, T. A.; Scanlon, T.; Schenzinger, Verena; Silow, Eugene; Skirving, William J.; Sofieva, Viktoria; Sparks, T. H.; Spillane, Sandra; Stanitski, Diane M.; Stengel, M.; Stephenson, Kimberly; Strong, Alan E.; Sutton, Adrienne J.; Takahashi, Kenneth S.; Thackeray, S. J.; Thomson, Lthorsteinsson T.; Timbal, Bertrand; Timofeyev, Maxim A.; Tirak, Kyle, V; Togawa, H.; Tommervik, H.; Tourpali, Kleareti; Trinanes, Joaquin A.; Tucker, C. J.; Tye, Mari R.; Van Der A, Ronald J.; Velden, Christopher S.; Vickers, H.; Webster, M.; Westberry, Toby K.; Widlansky, Matthew J.; Wood, K.; Yoon, Huang; York, A.; Zhu, Zhiwei; Ziel, R.; Ziese, Markus G.
In 2017, the dominant greenhouse gases released into Earth’s atmosphere—carbon dioxide, methane, and nitrous oxide— reached new record highs. The annual global average carbon dioxide concentration at Earth’s surface for 2017 was 405.0 ± 0.1 ppm, 2.2 ppm greater than for 2016 and the highest in the modern atmospheric measurement record and in ice core records dating back as far as 800 000 years. The global growth rate of CO2 has nearly quadrupled since the early 1960s. With ENSO-neutral conditions present in the central and eastern equatorial Pacific Ocean during most of the year and weak La Niña conditions notable at the start and end, the global temperature across land and ocean surfaces ranked as the second or third highest, depending on the dataset,...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00677/78863/81163.pdf

Processing BGC-Argo pH data at the DAC level
Provedor de dados: 5
Autores: Johnson, Kenneth S.; Plant, Joshua N.; Maurer, Tanya L.
Seawater proton concentration is a master variable that controls the air-sea gas exchange of CO2, the ability of organisms to produce calcium carbonate shells, and that tracks the production and respiration of organic carbon as CO2 is removed or added to water by biological processes.  The proton concentration in seawater [H+] (mol kg-seawater-1) is typically reported as the pH = -log10 [H+].  The in situ proton concentration ranges from about 3 to 30 nmol kg-seawater-1 (7.5&lt;pH&lt;8.5). Seawater pH is measured from profiling floats using a Deep-Sea DuraFET pH sensor that is manufactured at MBARI (Johnson et al., 2016) or at Sea-Bird Scientific (Float pH).  The core of each sensor is an Ion Sensitive Field Effect Transistor (ISFET), produced by...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00460/57195/61336.pdf

Oxygen in the Southern Ocean From Argo Floats: Determination of Processes Driving Air-Sea Fluxes
Provedor de dados: 5
Autores: Bushinsky, Seth M.; Gray, Alison R.; Johnson, Kenneth S.; Sarmiento, Jorge L.
The Southern Ocean is of outsized significance to the global oxygen and carbon cycles with relatively poor measurement coverage due to harsh winters and seasonal ice cover. In this study, we use recent advances in the parameterization of air-sea oxygen fluxes to analyze 9 years of oxygen data from a recalibrated Argo oxygen data set and from air-calibrated oxygen floats deployed as part of the Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) project. From this combined data set of 150 floats, we find a total Southern Ocean oxygen sink of -18380 Tmol yr(-1) (positive to the atmosphere), greater than prior estimates. The uptake occurs primarily in the Polar-Frontal Antarctic Zone (PAZ, -9430 Tmol O-2 yr(-1)) and Seasonal Ice Zone (SIZ,...
Tipo: Text
Palavras-chave: Air-sea oxygen fluxes; Argo profiling floats; Southern Ocean seasonal cycles.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00662/77390/79008.pdf

Autonomous Biogeochemical Floats Detect Significant Carbon Dioxide Outgassing in the High-Latitude Southern Ocean
Provedor de dados: 5
Autores: Gray, Alison R.; Johnson, Kenneth S.; Bushinsky, Seth M.; Riser, Stephen C.; Russell, Joellen L.; Talley, Lynne D.; Wanninkhof, Rik; Williams, Nancy L.; Sarmiento, Jorge L.
Although the Southern Ocean is thought to account for a significant portion of the contemporary oceanic uptake of carbon dioxide (CO2), flux estimates in this region are based on sparse observations that are strongly biased toward summer. Here we present new estimates of Southern Ocean air-sea CO2 fluxes calculated with measurements from biogeochemical profiling floats deployed by the Southern Ocean Carbon and Climate Observations and Modeling project during 2014-2017. Compared to ship-based CO2 flux estimates, the float-based fluxes find significantly stronger outgassing in the zone around Antarctica where carbon-rich deep waters upwell to the surface ocean. Although interannual variability contributes, this difference principally stems from the lack of...
Tipo: Text
Palavras-chave: Air-sea carbon flux; SOCCOM.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00673/78485/80837.pdf

Annual nitrate drawdown observed by SOCCOM profiling floats and the relationship to annual net community production
Provedor de dados: 5
Autores: Johnson, Kenneth S.; Plant, Joshua N.; Dunne, John P.; Talley, Lynne D.; Sarmiento, Jorge L.
Annual nitrate cycles have been measured throughout the pelagic waters of the Southern Ocean, including regions with seasonal ice cover and southern hemisphere subtropical zones. Vertically resolved nitrate measurements were made using in situ ultraviolet spectrophotometer (ISUS) and submersible ultraviolet nitrate analyzer (SUNA) optical nitrate sensors deployed on profiling floats. Thirty-one floats returned 40 complete annual cycles. The mean nitrate profile from the month with the highest winter nitrate minus the mean profile from the month with the lowest nitrate yields the annual nitrate drawdown. This quantity was integrated to 200 m depth and converted to carbon using the Redfield ratio to estimate annual net community production (ANCP) throughout...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00662/77397/78994.pdf

A BGC-Argo Guide: Planning, Deployment, Data Handling and Usage
Provedor de dados: 5
Autores: Bittig, Henry C.; Maurer, Tanya L.; Plant, Joshua N.; Schmechtig, Catherine; Wong, Annie P. S.; Claustre, Hervé; Trull, Thomas W.; Udaya Bhaskar, T. V. S.; Boss, Emmanuel; Dall’olmo, Giorgio; Organelli, Emanuele; Poteau, Antoine; Johnson, Kenneth S.; Hanstein, Craig; Leymarie, Edouard; Le Reste, Serge; Riser, Stephen C.; Rupan, A. Rick; Taillandier, Vincent; Thierry, Virginie; Xing, Xiaogang.
The Biogeochemical-Argo program (BGC-Argo) is a new profiling-float-based, ocean wide, and distributed ocean monitoring program which is tightly linked to, and has benefited significantly from, the Argo program. The community has recommended for BGC-Argo to measure six additional properties in addition to pressure, temperature and salinity measured by Argo, to include oxygen, pH, nitrate, downwelling light, chlorophyll fluorescence and the optical backscattering coefficient. The purpose of this addition is to enable the monitoring of ocean biogeochemistry and health, and in particular, monitor major processes such as ocean deoxygenation, acidification and warming and their effect on phytoplankton, the main source of energy of marine ecosystems. Here we...
Tipo: Text
Palavras-chave: Ocean observation; Ocean biogeochemical cycles; Sensors; Carbon cycle; Ocean optics; Best practices; Argo.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00512/62344/66607.pdf