Research in MC&G ranges from the glacial history of the Antarctic ice sheet and the formation of surface films in the upper micron of the ocean to the cycling of carbon through various ocean reservoirs, the history of ocean circulation recorded in the growth bands of coral, and the role of hydrothermal vents and seawater-rock interactions on the composition of the oceans.

Recent Submissions

  • Inconsistent strategies to spin up models in CMIP5 : implications for ocean biogeochemical model performance assessment 

    Seferian, Roland; Gehlen, Marion; Bopp, Laurent; Resplandy, Laure; Orr, James; Marti, Olivier; Dunne, John P.; Christian, James R.; Doney, Scott C.; Ilyina, Tatiana; Lindsay, Keith; Halloran, Paul R.; Heinze, Christoph; Segschneider, Joachim; Tjiputra, Jerry; aumont, olivier; Romanou, Anastasia (Copernicus Publications on behalf of the European Geosciences Union, 2016-05-12)
    During the fifth phase of the Coupled Model Intercomparison Project (CMIP5) substantial efforts were made to systematically assess the skill of Earth system models. One goal was to check how realistically representative ...
  • Punctuated shutdown of Atlantic Meridional Overturning Circulation during Greenland Stadial 1 

    Hogg, Alan; Southon, John; Turney, Chris; Palmer, Jonathan; Bronk Ramsey, Christopher; Fenwick, Pavla; Boswijk, Gretel; Friedrich, Michael; Helle, Gerhard; Hughen, Konrad A.; Jones, Richard; Kromer, Bernd; Noronha, Alexandra; Reynard, Linda; Staff, Richard; Wacker, Lukas (Nature Publishing Group, 2016-05-19)
    The Greenland Stadial 1 (GS-1; ~12.9 to 11.65 kyr cal BP) was a period of North Atlantic cooling, thought to have been initiated by North America fresh water runoff that caused a sustained reduction of North Atlantic ...
  • A note on reporting of reservoir 14C disequilibria and age offsets 

    Soulet, Guillaume; Skinner, Luke C.; Beaupre, Steven R.; Galy, valier (2016-01)
    Reservoir age offsets are widely used to correct marine and speleothem radiocarbon age measurements for various calibration purposes. They also serve as a powerful tracer for carbon cycle dynamics. However, a clear terminology ...
  • Quantifying air-sea gas exchange using noble gases in a coastal upwelling zone 

    Manning, Cara C.; Stanley, Rachel H. R.; Nicholson, David P.; Squibb, Michael E. (IOPScience, 2016)
    The diffusive and bubble-mediated components of air-sea gas exchange can be quantified separately using time-series measurements of a suite of dissolved inert gases. We have evaluated the performance of four published ...
  • Species-level variability in extracellular production rates of reactive oxygen species by diatoms 

    Schneider, Robin J.; Roe, Kelly L.; Hansel, Colleen M.; Voelker, Bettina M. (Frontiers Media, 2016-03-30)
    Biological production and decay of the reactive oxygen species (ROS) hydrogen peroxide (H2O2) and superoxide (O−2) likely have significant effects on the cycling of trace metals and carbon in marine systems. In this study, ...
  • The annual cycle of gross primary production, net community production, and export efficiency across the North Pacific Ocean 

    Palevsky, Hilary I.; Quay, Paul D.; Lockwood, Deirdre E.; Nicholson, David P. (John Wiley & Sons, 2016-02-27)
    We measured triple oxygen isotopes and oxygen/argon dissolved gas ratios as nonincubation-based geochemical tracers of gross oxygen production (GOP) and net community production (NCP) on 16 container ship transects across ...
  • Lipid remodelling is a widespread strategy in marine heterotrophic bacteria upon phosphorus deficiency 

    Sebastian, Marta; Smith, Alastair; Gonzalez, Jose M.; Fredricks, Helen F.; Van Mooy, Benjamin; Koblizek, Michal; Brandsma, Joost; Koster, Grielof; Mestre, Mireia; Mostajir, Behzad; Pitta, Paraskevi; Postle, Anthony D.; Sanchez, Pablo; Gasol, Josep M.; Scanlan, David J.; Chen, Yin (Nature Publishing Group, 2015-11-13)
    Upon phosphorus (P) deficiency, marine phytoplankton reduce their requirements for P by replacing membrane phospholipids with alternative non-phosphorus lipids. It was very recently demonstrated that a SAR11 isolate also ...
  • Revising upper-ocean sulfur dynamics near Bermuda : new lessons from 3 years of concentration and rate measurements 

    Levine, Naomi M.; Toole, Dierdre A.; Neeley, Aimee; Bates, Nicholas R.; Doney, Scott C.; Dacey, John W. H. (CSIRO Publishing, 2015-11-10)
    Oceanic biogeochemical cycling of dimethylsulfide (DMS), and its precursor dimethylsulfoniopropionate (DMSP), has gained considerable attention over the past three decades because of the potential role of DMS in climate ...
  • Decolorization improves the fuel properties of algal biodiesel from Isochrysis sp. 

    O’Neil, Gregory W.; Knothe, Gerhard; Williams, John R.; Burlow, Noah P.; Reddy, Christopher M. (2016-03)
    Results from the comprehensive fuel testing according to American Society for Testing and Materials International (ASTM) standards of an alkenone-free and decolorized biodiesel produced from the industrially grown marine ...
  • Methanol production by a broad phylogenetic array of marine phytoplankton 

    Mincer, Tracy J.; Aicher, Athena C. (Public Library of Science, 2016-03-10)
    Methanol is a major volatile organic compound on Earth and serves as an important carbon and energy substrate for abundant methylotrophic microbes. Previous geochemical surveys coupled with predictive models suggest that ...
  • Gross and microscopic lesions in corals from Micronesia 

    Work, Thierry M.; Aeby, Greta S.; Hughen, Konrad A. (2015-03)
    We documented gross and microscopic morphology of lesions in corals on seven islands spanning western, southern, and eastern Micronesia. We sampled 76 colonies comprising 30 species of corals among 18 genera with Acropora, ...
  • Biosynthesis of coral settlement cue tetrabromopyrrole in marine bacteria by a uniquely adapted brominase-thioesterase enzyme pair 

    El Gamal, Abrahim; Agarwal, Vinayak; Diethelm, Stefan; Rahman, Imran; Schorn, Michelle A.; Sneed, Jennifer M.; Louie, Gordon V.; Whalen, Kristen E.; Mincer, Tracy J.; Noel, Joseph P.; Paul, Valerie J.; Moore, Bradley S. (2016-02)
    Halogenated pyrroles (halopyrroles) are common chemical moieties found in bioactive bacterial natural products. The halopyrrole moieties of mono- and di- halopyrrole-containing compounds arise from a conserved mechanism ...
  • Neodymium isotope analyses after combined extraction of actinide and lanthanide elements from seawater and deep-sea coral aragonite 

    Struve, Torben; van de Flierdt, Tina; Robinson, Laura F.; Bradtmiller, Louisa I.; Hines, Sophia K.; Adkins, Jess F.; Lambelet, Myriam; Crocket, Kirsty C.; Kreissig, Katharina; Coles, Barry; Auro, Maureen E. (John Wiley & Sons, 2016-01-09)
    Isotopes of the actinide elements protactinium (Pa), thorium (Th), and uranium (U), and the lanthanide element neodymium (Nd) are often used as complementary tracers of modern and past oceanic processes. The extraction of ...
  • The Guaymas Basin hiking guide to hydrothermal mounds, chimneys, and microbial mats : complex seafloor expressions of subsurface hydrothermal circulation 

    Teske, Andreas; de Beer, Dirk; McKay, Luke J.; Tivey, Margaret K.; Biddle, Jennifer F.; Hoer, Daniel; Lloyd, Karen G.; Lever, Mark A.; Røy, Hans; Albert, Daniel B.; Mendlovitz, Howard P.; MacGregor, Barbara J. (Frontiers Media, 2016-02-18)
    The hydrothermal mats, mounds, and chimneys of the southern Guaymas Basin are the surface expression of complex subsurface hydrothermal circulation patterns. In this overview, we document the most frequently visited features ...
  • Global Carbon Budget 2015 

    Le Quere, Corinne; Moriarty, Roisin; Andrew, Robbie M.; Canadell, Josep G.; Sitch, Stephen; Korsbakken, Jan Ivar; Friedlingstein, Pierre; Peters, Glen P.; Andres, Robert J.; Boden, T. A.; Houghton, Richard A.; House, Jo I.; Keeling, Ralph F.; Tans, Pieter P.; Arneth, Almut; Bakker, Dorothee C. E.; Barbero, Leticia; Bopp, Laurent; Chang, J.; Chevallier, F.; Chini, Louise Parsons; Ciais, Philippe; Fader, Marianela; Feely, Richard A.; Gkritzalis, Thanos; Harris, Ian; Hauck, Judith; Ilyina, Tatiana; Jain, Atul K.; Kato, Etsushi; Kitidis, Vassilis; Klein Goldewijk, Kees; Koven, Charles; Landschutzer, Peter; Lauvset, Siv K.; Lefevre, N.; Lenton, A.; Lima, Ivan D.; Metzl, Nicolas; Millero, Frank J.; Munro, D. R.; Murata, Akihiko; Nabel, Julia E. M. S.; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; O'Brien, Kevin; Olsen, Are; Ono, Tsuneo; Perez, Fiz F.; Pfeil, Benjamin; Pierrot, Denis; Poulter, Benjamin; Rehder, Gregor; Rodenbeck, C.; Saito, Shu; Schuster, Ute; Schwinger, Jorg; Seferian, Roland; Steinhoff, Tobias; Stocker, B. D.; Sutton, Adrienne J.; Takahashi, Taro; Tilbrook, Bronte; van der Laan-Luijkx, I. T.; van der Werf, Guido R.; van Heuven, Steven; Vandemark, Doug; Viovy, N.; Wiltshire, A.; Zaehle, Sonke; Zeng, Ning (Copernicus Publications, 2015-12-07)
    Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere is important to better understand the global carbon cycle, support the ...
  • Rare earth elements (REEs) in the tropical South Atlantic and quantitative deconvolution of their non-conservative behavior 

    Zheng, Xin-Yuan; Plancherel, Yves; Saito, Mak A.; Scott, Peter M.; Henderson, Gideon M. (2016-01-24)
    This study presents new concentration measurements of dissolved REEs (dREEs) along a full-depth east-west section across the tropical South Atlantic (~12°S), and uses these data to investigate the oceanic cycling of the ...
  • Continuous measurements of dissolved Ne, Ar, Kr, and Xe ratios with a field-deployable gas equilibration mass spectrometer 

    Manning, Cara C.; Stanley, Rachel H. R.; Lott, Dempsey E. (2016-01-30)
    Noble gases dissolved in natural waters are useful tracers for quantifying physical processes. Here, we describe a field-deployable gas equilibration mass spectrometer (GEMS) that provides continuous, real-time measurements ...
  • Triple oxygen isotopic composition of the high-3He/4He mantle 

    Starkey, Natalie A.; Jackson, Colin R. M.; Greenwood, Richard C.; Parman, Stephen W.; Franchi, Ian A.; Jackson, Matthew; Fitton, J. Godfrey; Stuart, Fin M.; Kurz, Mark D.; Larsen, Lotte M. (Elsevier, 2016-01-02)
    Measurements of Xe isotope ratios in ocean island basalts (OIB) suggest that Earth’s mantle accreted heterogeneously, and that compositional remnants of accretion are sampled by modern, high-3He/4He OIB associated with the ...
  • Deciphering ocean carbon in a changing world 

    Moran, Mary Ann; Kujawinski, Elizabeth B.; Stubbins, Aron; Fatland, Rob; Aluwihare, Lihini I.; Buchan, Alison; Crump, Byron C.; Dorrestein, Pieter C.; Dyhrman, Sonya T.; Hess, Nancy J.; Howe, Bill; Longnecker, Krista; Medeiros, Patricia M.; Niggemann, Jutta; Obernosterer, Ingrid; Repeta, Daniel J.; Waldbauer, Jacob R. (2016-01-13)
    Dissolved organic matter (DOM) in the oceans is one of the largest pools of reduced carbon on Earth, comparable in size to the atmospheric CO2 reservoir. A vast number of compounds are present in DOM and they play important ...
  • Analysis of high-precision vanadium isotope ratios by medium resolution MC-ICP-MS 

    Nielsen, Sune G.; Owens, Jeremy D.; Horner, Tristan J. (2015-11)
    We present and verify a new method to measure vanadium isotope ratios using a Thermo Scientific Neptune multi-collector inductively-coupled plasma mass spectrometer (MCICP- MS) operated in medium mass resolution mode. ...

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