Search Results - "Baar, Hein"

The distribution of dissolved iron in the West Atlantic Ocean by Rijkenberg, Micha J A, Middag, Rob, Laan, Patrick, Gerringa, Loes J A, van Aken, Hendrik M, Schoemann, Véronique, de Jong, Jeroen T M, de Baar, Hein J W

“…Iron (Fe) is an essential trace element for marine life. Extremely low Fe concentrations limit primary production and nitrogen fixation in large parts of the…”
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Neodymium isotopic composition and concentration in the western North Atlantic Ocean: Results from the GEOTRACES GA02 section by Lambelet, Myriam, van de Flierdt, Tina, Crocket, Kirsty, Rehkämper, Mark, Kreissig, Katharina, Coles, Barry, Rijkenberg, Micha J.A., Gerringa, Loes J.A., de Baar, Hein J.W., Steinfeldt, Reiner

“…The neodymium (Nd) isotopic composition of seawater is commonly used as a proxy to study past changes in the thermohaline circulation. The modern database for…”
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The relationship between cadmium and phosphate in the Atlantic Ocean unravelled by Middag, Rob, van Heuven, Steven M.A.C., Bruland, Kenneth W., de Baar, Hein J.W.

“…Cadmium (Cd) is not generally considered a nutrient element, but behaves like a nutrient in the oceans and might play an important role in ocean biology after…”
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Natural iron fertilization of the Atlantic sector of the Southern Ocean by continental shelf sources of the Antarctic Peninsula by de Jong, Jeroen, Schoemann, Véronique, Lannuzel, Delphine, Croot, Peter, de Baar, Hein, Tison, Jean-Louis

“…In large parts of the Southern Ocean, primary production is limited due to shortage of iron (Fe). We measured vertical Fe profiles in the western Weddell Sea,…”
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Iron from melting glaciers fuels the phytoplankton blooms in Amundsen Sea (Southern Ocean): Iron biogeochemistry by Gerringa, Loes J.A., Alderkamp, Anne-Carlijn, Laan, Patrick, Thuróczy, Charles-Edouard, De Baar, Hein J.W., Mills, Matthew M., van Dijken, Gert L., Haren, Hans van, Arrigo, Kevin R.

“…Dissolved iron (DFe) and total dissolvable Fe (TDFe) were measured in January–February 2009 in Pine Island Bay, as well as in the Pine Island and Amundsen…”
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Contrasting biogeochemical cycles of cobalt in the surface western Atlantic Ocean by Dulaquais, Gabriel, Boye, Marie, Middag, Rob, Owens, Stephanis, Puigcorbe, Viena, Buesseler, Ken, Masqué, Pere, de Baar, Hein J. W., Carton, Xavier

“…Dissolved cobalt (DCo; <0.2 µm; 14 to 93 pM) and the apparent particulate cobalt (PCo; >0.2 µm; <1 to 15 pM) were determined in the upper water column (<1000…”
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Cadmium isotope variations in the Southern Ocean by Xue, Zichen, Rehkämper, Mark, Horner, Tristan J., Abouchami, Wafa, Middag, Rob, van de Flierd, Tina, de Baar, Hein J.W.

“…Cadmium concentrations and isotope compositions were determined for 47 seawater samples from the high nutrient low chlorophyll (HNLC) zone of the Atlantic…”
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Evidences of strong sources of DFe and DMn in Ryder Bay, Western Antarctic Peninsula by Bown, Johann, van Haren, Hans, Meredith, Michael P., Venables, Hugh J., Laan, Patrick, Brearley, J. Alexander, de Baar, Hein J. W.

“…The spatial distribution, biogeochemical cycling and external sources of dissolved iron and dissolved manganese (DFe and DMn) were investigated in Ryder Bay, a…”
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Climatological mean and decadal change in surface ocean pCO2, and net sea–air CO2 flux over the global oceans by Takahashi, Taro, Sutherland, Stewart C., Wanninkhof, Rik, Sweeney, Colm, Feely, Richard A., Chipman, David W., Hales, Burke, Friederich, Gernot, Chavez, Francisco, Sabine, Christopher, Watson, Andrew, Bakker, Dorothee C.E., Schuster, Ute, Metzl, Nicolas, Yoshikawa-Inoue, Hisayuki, Ishii, Masao, Midorikawa, Takashi, Nojiri, Yukihiro, Körtzinger, Arne, Steinhoff, Tobias, Hoppema, Mario, Olafsson, Jon, Arnarson, Thorarinn S., Tilbrook, Bronte, Johannessen, Truls, Olsen, Are, Bellerby, Richard, Wong, C.S., Delille, Bruno, Bates, N.R., de Baar, Hein J.W.

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Non-Rayleigh control of upper-ocean Cd isotope fractionation in the western South Atlantic by Xie, Ruifang C., Galer, Stephen J.G., Abouchami, Wafa, Rijkenberg, Micha J.A., de Baar, Hein J.W., De Jong, Jeroen, Andreae, Meinrat O.

“…We present seawater Cd isotopic compositions in five depth profiles and a continuous surface water transect, from 50°S to the Equator, in the western South…”
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Low cerium among the dissolved rare earth elements in the central North Pacific Ocean by de Baar, Hein J.W., Bruland, Kenneth W., Schijf, Johan, van Heuven, Steven M.A.C., Behrens, Melanie K.

“…Seawater samples were collected at the Vertex IV site at 28°N, 155°W in the central North Pacific Ocean. The very old deep waters show low concentrations of…”
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Manganese in the west Atlantic Ocean in the context of the first global ocean circulation model of manganese by van Hulten, Marco, Middag, Rob, Dutay, Jean-Claude, de Baar, Hein, Roy-Barman, Matthieu, Gehlen, Marion, Tagliabue, Alessandro, Sterl, Andreas

“…Dissolved manganese (Mn) is a biologically essential element. Moreover, its oxidised form is involved in removing itself and several other trace elements from…”
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Return of naturally sourced Pb to Atlantic surface waters by Bridgestock, Luke, van de Flierdt, Tina, Rehkämper, Mark, Paul, Maxence, Middag, Rob, Milne, Angela, Lohan, Maeve C., Baker, Alex R., Chance, Rosie, Khondoker, Roulin, Strekopytov, Stanislav, Humphreys-Williams, Emma, Achterberg, Eric P., Rijkenberg, Micha J. A., Gerringa, Loes J. A., de Baar, Hein J. W.

“…Anthropogenic emissions completely overwhelmed natural marine lead (Pb) sources during the past century, predominantly due to leaded petrol usage. Here, based…”
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Enhanced open ocean storage of CO2 from shelf sea pumping by THOMAS, Helmuth, BOZEC, Yann, ELKALAY, Khalid, DE BAAR, Hein J. W

“…Seasonal field observations show that the North Sea, a Northern European shelf sea, is highly efficient in pumping carbon dioxide from the atmosphere to the…”
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Rapid increase of observed DIC and pCO2 in the surface waters of the North Sea in the 2001-2011 decade ascribed to climate change superimposed by biological processes by Clargo, Nicola M., Salt, Lesley A., Thomas, Helmuth, de Baar, Hein J.W.

“…The CO2 system in the North Sea over the 2001-2011 decade was investigated using four comprehensive basin-wide datasets covering the late summer periods of…”
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Ocean acidification and calcium carbonate saturation states in the coastal zone of the West Antarctic Peninsula by Jones, Elizabeth M., Fenton, Mairi, Meredith, Michael P., Clargo, Nicola M., Ossebaar, Sharyn, Ducklow, Hugh W., Venables, Hugh J., de Baar, Hein J.W.

“…The polar oceans are particularly vulnerable to ocean acidification; the lowering of seawater pH and carbonate mineral saturation states due to uptake of…”
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Can photoinhibition control phytoplankton abundance in deeply mixed water columns of the Southern Ocean? by Alderkamp, Anne-Carlijn, de Baar, Hein J. W., Visser, Ronald J. W., Arrigo, Kevin R.

“…To study how natural Southern Ocean phytoplankton communities acclimate to rapid fluctuations in irradiance levels that result from deep wind-driven mixing of…”
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Impact of ocean acidification and high solar radiation on productivity and species composition of a late summer phytoplankton community of the coastal Western Antarctic Peninsula by Heiden, Jasmin P., Völkner, Christian, Jones, Elizabeth M., van de Poll, Willem H., Buma, Anita G. J., Meredith, Michael P., de Baar, Hein J. W., Bischof, Kai, Wolf-Gladrow, Dieter, Trimborn, Scarlett

“…The Western Antarctic Peninsula (WAP), one of the most productive regions of the Southern Ocean, is currently undergoing rapid environmental changes such as…”
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“PRISTINE”, a new high volume sampler for ultraclean sampling of trace metals and isotopes by Rijkenberg, Micha J.A., de Baar, Hein J.W., Bakker, Karel, Gerringa, Loes J.A., Keijzer, Edwin, Laan, Martin, Laan, Patrick, Middag, Rob, Ober, Sven, van Ooijen, Jan, Ossebaar, Sharyn, van Weerlee, Evaline M., Smit, Marck G.

“…Many trace elements like Mn, Fe, Co, Ni, Cu and Zn are essential for marine life, some trace elements are of concern as pollutants, e.g. Pb and Hg, while…”
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Assessing neodymium isotopes as an ocean circulation tracer in the Southwest Atlantic by Wu, Yingzhe, Pena, Leopoldo D., Anderson, Robert F., Hartman, Alison E., Bolge, Louise L., Basak, Chandranath, Kim, Joohee, Rijkenberg, Micha J.A., de Baar, Hein J.W., Goldstein, Steven L.

“…The global overturning ocean circulation plays a key role in global climate by distributing heat around the Earth and by triggering or amplifying major climate…”
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