Search Results - "WALLACE, R. W"

Methodological underestimation of oceanic nitrogen fixation rates by Mohr, Wiebke, Grosskopf, Tobias, Wallace, Douglas W R, LaRoche, Julie

“…The two commonly applied methods to assess dinitrogen (N(2)) fixation rates are the (15)N(2)-tracer addition and the acetylene reduction assay (ARA)…”
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Expansion of oxygen minimum zones may reduce available habitat for tropical pelagic fishes by Stramma, Lothar, Prince, Eric D., Schmidtko, Sunke, Luo, Jiangang, Hoolihan, John P., Visbeck, Martin, Wallace, Douglas W. R., Brandt, Peter, Körtzinger, Arne

“…One of the impacts of ocean warming is a decrease in dissolved oxygen, with implications for valuable pelagic fish species. A study shows that the oxygenated…”
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Oxygen export to the deep ocean following Labrador Sea Water formation by Koelling, Jannes, Atamanchuk, Dariia, Karstensen, Johannes, Handmann, Patricia, Wallace, Douglas W. R

“…The Labrador Sea in the North Atlantic Ocean is one of the few regions globally where oxygen from the atmosphere can reach the deep ocean directly. This is the…”
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Global oceanic production of nitrous oxide by Freing, Alina, Wallace, Douglas W. R., Bange, Hermann W.

“…We use transient time distributions calculated from tracer data together with in situ measurements of nitrous oxide (N2O) to estimate the concentration of…”
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Can simple models predict large-scale surface ocean isoprene concentrations? by Booge, Dennis, Marandino, Christa A, Schlundt, Cathleen, Palmer, Paul I, Schlundt, Michael, Atlas, Elliot L, Bracher, Astrid, Saltzman, Eric S, Wallace, Douglas W. R

“…We use isoprene and related field measurements from three different ocean data sets together with remotely sensed satellite data to model global marine…”
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Temporal and spatial evolution of bottom-water hypoxia in the St Lawrence estuarine system by Jutras, Mathilde, Mucci, Alfonso, Chaillou, Gwenaëlle, Nesbitt, William A, Wallace, Douglas W. R

“…Persistent hypoxic bottom waters have developed in the Lower St Lawrence Estuary (LSLE) and have impacted fish and benthic species distributions. Minimum…”
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Doubling of marine dinitrogen-fixation rates based on direct measurements by Großkopf, Tobias, Mohr, Wiebke, Baustian, Tina, Schunck, Harald, Gill, Diana, Kuypers, Marcel M. M., Lavik, Gaute, Schmitz, Ruth A., Wallace, Douglas W. R., LaRoche, Julie

“…A newly developed method of measuring oceanic nitrogen-fixation rates provides significantly higher estimates than a current widely applied technique, and…”
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High anthropogenic carbon content in the eastern Mediterranean by Schneider, A., Tanhua, T., Körtzinger, A., Wallace, D. W. R.

“…This work presents data of dichlorodifluoromethane (CFC‐12), dissolved inorganic carbon and total alkalinity from a cruise to the Mediterranean Sea during…”
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Ventilation of the Arctic Ocean: Mean ages and inventories of anthropogenic CO2 and CFC-11 by Tanhua, Toste, Jones, E. Peter, Jeansson, Emil, Jutterström, Sara, Smethie Jr, William M., Wallace, Douglas W. R., Anderson, Leif G.

“…The Arctic Ocean constitutes a large body of water that is still relatively poorly surveyed because of logistical difficulties, although the importance of the…”
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Alkalinity of the Mediterranean Sea by Schneider, Anke, Wallace, Douglas W. R., Körtzinger, Arne

“…Total alkalinity (AT) was measured during the Meteor 51/2 cruise, crossing the Mediterranean Sea from west to east. AT concentrations were high (∼2600 μmol…”
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Drivers of diel and regional variations of halocarbon emissions from the tropical North East Atlantic by Hepach, H, Quack, B, Ziska, F, Fuhlbrügge, S, Atlas, E. L, Krüger, K, Peeken, I, Wallace, D. W. R

“…Methyl iodide (CH3I), bromoform (CHBr3) and dibromomethane (CH2Br2), which are produced naturally in the oceans, take part in ozone chemistry both in the…”
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An eddy-stimulated hotspot for fixed nitrogen-loss from the Peru oxygen minimum zone by Altabet, M. A, Ryabenko, E, Stramma, L, Wallace, D. W. R, Frank, M, Grasse, P, Lavik, G

“…Fixed nitrogen (N) loss to biogenic N2 in intense oceanic O2 minimum zones (OMZ) accounts for a large fraction of the global N sink and is an essential control…”
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Contrasting biogeochemistry of nitrogen in the Atlantic and Pacific Oxygen Minimum Zones by Ryabenko, E, Kock, A, Bange, H. W, Altabet, M. A, Wallace, D. W. R

“…We present new data for the stable isotope ratio of inorganic nitrogen species from the contrasting oxygen minimum zones (OMZs) of the Eastern Tropical North…”
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Tracking the Variable North Atlantic Sink for Atmospheric CO2 by Watson, Andrew J., Schuster, Ute, Bakker, Dorothee C. E., Bates, Nicholas R., Corbière, Antoine, González-Dávila, Melchor, Friedrich, Tobias, Hauck, Judith, Heinze, Christoph, Johannessen, Truls, Körtzinger, Arne, Metzl, Nicolas, Olafsson, Jon, Olsen, Are, Oschlies, Andreas, Padin, X. Antonio, Pfeil, Benjamin, Santana-Casiano, J. Magdalena, Steinhoff, Tobias, Telszewski, Maciej, Rios, Aida F., Wallace, Douglas W. R., Wanninkhof, Rik

“…The oceans are a major sink for atmospheric carbon dioxide (CO2). Historically, observations have been too sparse to allow accurate tracking of changes in…”
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Bromoform and dibromomethane above the Mauritanian upwelling: Atmospheric distributions and oceanic emissions by Quack, Birgit, Atlas, Elliot, Petrick, Gert, Wallace, Douglas W. R.

“…Natural sources of bromoform (CHBr3) and dibromomethane (CH2Br2), including oceanic emissions, contribute to stratospheric and tropospheric O3 depletion…”
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The Oceanic Sink for Anthropogenic CO2 by Sabine, Christopher L., Feely, Richard A., Gruber, Nicolas, Key, Robert M., Lee, Kitack, Bullister, John L., Wanninkhof, Rik, Wong, C. S., Douglas W. R. Wallace, Tilbrook, Bronte, Millero, Frank J., Peng, Tsung-Hung, Kozyr, Alexander, Ono, Tsueno, Rios, Aida F.

“…Using inorganic carbon measurements from an international survey effort in the 1990s and a tracer-based separation technique, we estimate a global oceanic…”
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Deep inflow transport and dispersion in the Gulf of St. Lawrence revealed by a tracer release experiment by Stevens, Samuel W., Pawlowicz, Rich, Tanhua, Toste, Gerke, Lennart, Nesbitt, William A., Drozdowski, Adam, Chassé, Joël, Wallace, Douglas W. R.

“…Abstract The Gulf of St. Lawrence is increasingly affected by bottom water hypoxia; however, the timescales and pathways of deep water transport remain…”
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Quantitative Mid-Infrared Cavity Ringdown Detection of Methyl Iodide for Monitoring Applications by Sadiek, Ibrahim, Shi, Qiang, Wallace, Douglas W. R, Friedrichs, Gernot

“…Methyl iodide is a toxic halocarbon with diverse industrial and agricultural applications, and it is an important ocean-derived trace gas that contributes to…”
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Use of SF6 to estimate anthropogenic CO2 in the upper ocean by Tanhua, Toste, Waugh, Darryn W., Wallace, Douglas W. R.

“…The highest concentrations of anthropogenic carbon (Cant) are found in the upper layers of the world ocean. However, this is where seasonal variability of…”
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estimate of anthropogenic CO₂ inventory from decadal changes in oceanic carbon content by Tanhua, Toste, Körtzinger, Arne, Friis, Karsten, Waugh, Darryn W, Wallace, Douglas W.R

“…Increased knowledge of the present global carbon cycle is important for our ability to understand and to predict the future carbon cycle and global climate…”
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