Search Results - "Trull, Thomas W."

Distinct iron cycling in a Southern Ocean eddy by Ellwood, Michael J., Strzepek, Robert F., Strutton, Peter G., Trull, Thomas W., Fourquez, Marion, Boyd, Philip W.

“…Mesoscale eddies are ubiquitous in the iron-limited Southern Ocean, controlling ocean-atmosphere exchange processes, however their influence on phytoplankton…”
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Ambient nitrate switches the ammonium consumption pathway in the euphotic ocean by Wan, Xianhui Sean, Sheng, Hua-Xia, Dai, Minhan, Zhang, Yao, Shi, Dalin, Trull, Thomas W., Zhu, Yifan, Lomas, Michael W., Kao, Shuh-Ji

“…Phytoplankton assimilation and microbial oxidation of ammonium are two critical conversion pathways in the marine nitrogen cycle. The underlying regulatory…”
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Reduced calcification in modern Southern Ocean planktonic foraminifera by Trull, Thomas W, Bray, Stephen G, Moy, Andrew D, Howard, William R

“…Anthropogenic carbon dioxide has been accumulating in the oceans, lowering both the concentration of carbonate ions and the pH (ref. 1), resulting in the…”
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Independence of nutrient limitation and carbon dioxide impacts on the Southern Ocean coccolithophore Emiliania huxleyi by Müller, Marius N, Trull, Thomas W, Hallegraeff, Gustaaf M

“…Future oceanic conditions induced by anthropogenic greenhouse gas emissions include warming, acidification and reduced nutrient supply due to increased…”
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Dual Isotope Measurements Reveal Zoning of Nitrate Processing in the Summer Changjiang (Yangtze) River Plume by Yan, Xiuli, Xu, Min Nina, Wan, Xianhui Sean, Yang, Jin‐Yu Terence, Trull, Thomas W., Dai, Minhan, Kao, Shuh‐Ji

“…Riverine nitrogen input into the coastal zone has increased remarkably in recent decades. Yet its transformation and recycling within hydrodynamically active…”
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Oceanographic Fronts Shape Phaeocystis Assemblages: A High-Resolution 18S rRNA Gene Survey From the Ice-Edge to the Equator of the South Pacific by Sow, Swan L. S., Trull, Thomas W., Bodrossy, Levente

“…The cosmopolitan haptophyte Phaeocystis is recognized as a key contributor to marine biogeochemical cycling and important primary producer within polar marine…”
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Divergent trajectories of ocean warming and acidification by Mortenson, Eric, Lenton, Andrew, Shadwick, Elizabeth H, Trull, Thomas W, Chamberlain, Matthew A, Zhang, Xuebin

“…Abstract The ocean provides a major sink for anthropogenic heat and carbon. This sink results in ocean changes through the dual stressors of warming and…”
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Coccolithophore biodiversity controls carbonate export in the Southern Ocean by Rigual Hernández, Andrés S, Trull, Thomas W, Nodder, Scott D, Flores, José A, Bostock, Helen, Abrantes, Fátima, Eriksen, Ruth S, Sierro, Francisco J, Davies, Diana M, Ballegeer, Anne-Marie, Fuertes, Miguel A, Northcote, Lisa C

“…Southern Ocean waters are projected to undergo profound changes in their physical and chemical properties in the coming decades. Coccolithophore blooms in the…”
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Eddy‐induced carbon transport across the Antarctic Circumpolar Current by Moreau, Sébastien, Penna, Alice Della, Llort, Joan, Patel, Ramkrushnbhai, Langlais, Clothilde, Boyd, Philip W., Matear, Richard J., Phillips, Helen E., Trull, Thomas W., Tilbrook, Bronte, Lenton, Andrew, Strutton, Peter G.

“…The implications of a mesoscale eddy for relevant properties of the Southern Ocean carbon cycle are examined with in situ observations. We explored carbon…”
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Revisiting Carbon Flux through the Ocean's Twilight Zone by Buesseler, Ken O., Lamborg, Carl H., Boyd, Philip W., Lam, Phoebe J., Trull, Thomas W., Bidigare, Robert R., Bishop, James K. B., Casciotti, Karen L., Dehairs, Frank, Elskens, Marc, Honda, Makio, Karl, David M., Siegel, David A., Silver, Mary W., Steinberg, Deborah K., Valdes, Jim, Van Mooy, Benjamin, Wilson, Stephanie

“…The oceanic biological pump drives sequestration of carbon dioxide in the deep sea via sinking particles. Rapid biological consumption and remineralization of…”
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Annual cycle of carbonate chemistry and decadal change in coastal Prydz Bay, East Antarctica by Roden, Nicholas P., Shadwick, Elizabeth H., Tilbrook, Bronte, Trull, Thomas W.

“…The annual cycles of dissolved carbon dioxide (CO2) system parameters were determined for a coastal site in East Antarctica using samples collected from May…”
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Biogeochemical iron budgets of the Southern Ocean south of Australia: Decoupling of iron and nutrient cycles in the subantarctic zone by the summertime supply by Bowie, Andrew R., Lannuzel, Delphine, Remenyi, Tomas A., Wagener, Thibaut, Lam, Phoebe J., Boyd, Philip W., Guieu, Cécile, Townsend, Ashley T., Trull, Thomas W.

“…Climate change is projected to significantly alter the delivery (stratification, boundary currents, aridification of landmasses, glacial melt) of iron to the…”
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The fate of diatom valves in the Subantarctic and Polar Frontal Zones of the Southern Ocean: Sediment trap versus surface sediment assemblages by Rigual-Hernández, Andrés S., Trull, Thomas W., Bray, Stephen G., Armand, Leanne K.

“…An array of deep ocean sediment traps was initiated in 1997 within the Australian sector of the Southern Ocean, and serviced annually for over a decade (the…”
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Seasonal dynamics in diatom and particulate export fluxes to the deep sea in the Australian sector of the southern Antarctic Zone by Rigual-Hernández, Andrés S., Trull, Thomas W., Bray, Stephen G., Closset, Ivia, Armand, Leanne K.

“…Particle fluxes were recorded over a one-year period (2001-02) in the southern Antarctic Zone in the Australian Sector of the Southern Ocean. Here, we present…”
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Biogeochemical Argo Floats Reveal the Evolution of Subsurface Chlorophyll and Particulate Organic Carbon in Southeast Indian Ocean Eddies by Strutton, Peter G., Trull, Thomas W., Phillips, Helen E., Duran, Earl R., Pump, Sylvia

“…Eddies modulate open ocean productivity, and this influence depends on both eddy source and evolution. Southeast Indian Ocean eddies are important pathways for…”
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Microbial Competition in the Subpolar Southern Ocean: An Fe–C Co-limitation Experiment by Fourquez, Marion, Bressac, Matthieu, Deppeler, Stacy L., Ellwood, Michael, Obernosterer, Ingrid, Trull, Thomas W., Boyd, Philip W.

“…Iron (Fe) is a paradox in the modern ocean—it is central to many life-critical enzymes but is scarce across most surface waters. The high cellular demand and…”
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High Lability Fe Particles Sourced From Glacial Erosion Can Meet Previously Unaccounted Biological Demand: Heard Island, Southern Ocean by van der Merwe, Pier, Wuttig, Kathrin, Holmes, Thomas, Trull, Thomas W., Chase, Zanna, Townsend, Ashley T., Goemann, Karsten, Bowie, Andrew R.

“…Iron (Fe) is an essential micronutrient that controls phytoplankton growth in the Southern Ocean. Dissolved Fe ( 0.4µm) is far more abundant and may also…”
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Ocean productivity south of Australia during spring and summer by Bender, Michael L., Tilbrook, Bronte, Cassar, Nicolas, Jonsson, Bror, Poisson, Alain, Trull, Thomas W.

“…We estimated mixed layer gross and net community production on a total of 20 crossings in the Australian sector of the Southern Ocean during the summer…”
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Multi-Year Observations of Fluorescence and Backscatter at the Southern Ocean Time Series (SOTS) Shed Light on Two Distinct Seasonal Bio-Optical Regimes by Schallenberg, Christina, Harley, James W., Jansen, Peter, Davies, Diana M., Trull, Thomas W.

“…This work presents insights from 6 years of chlorophyll-a fluorescence and backscatter (700 nm) data at the Southern Ocean Time Series (SOTS) moorings, located…”
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Autonomous Multi-Trophic Observations of Productivity and Export at the Australian Southern Ocean Time Series (SOTS) Reveal Sequential Mechanisms of Physical-Biological Coupling by Trull, Thomas W., Jansen, Peter, Schulz, Eric, Weeding, Ben, Davies, Diana M., Bray, Stephen G.

“…The timing of pelagic spring blooms has received attention to understand controls on open ocean productivity and its potential responses to climate change…”
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