Search Results - "Gersonde, R."

Increased Dust Deposition in the Pacific Southern Ocean During Glacial Periods by Lamy, F., Gersonde, R., Winckler, G., Esper, O., Jaeschke, A., Kuhn, G., Ullermann, J., Martinez-Garcia, A., Lambert, F., Kilian, R.

“…Dust deposition in the Southern Ocean constitutes a critical modulator of past global climate variability, but how it has varied temporally and geographically…”
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North Pacific freshwater events linked to changes in glacial ocean circulation by Maier, E., Zhang, X., Abelmann, A., Gersonde, R., Mulitza, S., Werner, M., Méheust, M., Ren, J., Chapligin, B., Meyer, H., Stein, R., Tiedemann, R., Lohmann, G.

“…There is compelling evidence that episodic deposition of large volumes of freshwater into the oceans strongly influenced global ocean circulation and climate…”
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Sequence of events from the onset to the demise of the Last Interglacial: Evaluating strengths and limitations of chronologies used in climatic archives by Govin, A., Capron, E., Tzedakis, P.C., Verheyden, S., Ghaleb, B., Hillaire-Marcel, C., St-Onge, G., Stoner, J.S., Bassinot, F., Bazin, L., Blunier, T., Combourieu-Nebout, N., El Ouahabi, A., Genty, D., Gersonde, R., Jimenez-Amat, P., Landais, A., Martrat, B., Masson-Delmotte, V., Parrenin, F., Seidenkrantz, M.-S., Veres, D., Waelbroeck, C., Zahn, R.

“…The Last Interglacial (LIG) represents an invaluable case study to investigate the response of components of the Earth system to global warming. However, the…”
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Morphometric variability in the diatom Fragilariopsis kerguelensis: Implications for Southern Ocean paleoceanography by Cortese, G., Gersonde, R.

“…Diatoms play a central role in the ecosystem of the Southern Ocean, where they represent the main producers and carriers of organic carbon and dissolved…”
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One-to-one coupling of glacial climate variability in Greenland and Antarctica by Barbante, C, Barnola, J.-M, Becagli, S, Beer, J, Bigler, M, Boutron, C, Blunier, T, Castellano, E, Cattani, O, Chappellaz, J, Dahl-Jensen, D, Debret, M, Delmonte, B, Dick, D, Falourd, S, Faria, S, Federer, U, Fischer, H, Freitag, J, Frenzel, A, Fritzsche, D, Fundel, F, Gabrielli, P, Gaspari, V, Gersonde, R, Graf, W, Grigoriev, D, Hamann, I, Hansson, M, Hoffmann, G, Hutterli, M. A, Huybrechts, P, Isaksson, E, Johnsen, S, Jouzel, J, Kaczmarska, M, Karlin, T, Kaufmann, P, Kipfstuhl, S, Kohno, M, Lambert, F, Lambrecht, Anja, Lambrecht, Astrid, Landais, A, Lawer, G, Leuenberger, M, Littot, G, Loulergue, L, Luthi, D, Maggi, V, Marino, F, Masson-Delmotte, V, Meyer, H, Miller, H, Mulvaney, R, Narcisi, B, Oerlemans, J, Oerter, H, Parrenin, F, Petit, J.-R, Raisbeck, G, Raynaud, D, Rothlisberger, R, Ruth, U, Rybak, O, Severi, M, Schmitt, J, Schwander, J, Siegenthaler, U, Siggaard-Andersen, M.-L, Spahni, R, Steffensen, J. P, Stenni, B, Stocker, T. F, Tison, J.-L, Traversi, R, Udisti, R, Valero-Delgado, F, van den Broeke, M. R, van de Wal, R. S. W, Wagenbach, D, Wegner, A, Weiler, K, Wilhelms, F, Winther, J.-G, Wolff, E

“…Precise knowledge of the phase relationship between climate changes in the two hemispheres is a key for understanding the Earth’s climate dynamics. For the…”
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Constraints on the magnitude and patterns of ocean cooling at the Last Glacial Maximum by Waelbroeck, C, Paul, A, Kucera, M, Rosell-melé, A, Weinelt, M, Schneider, R, Mix, A C, Abelmann, A, Armand, L, Bard, E, Barker, S, Barrows, T T, Benway, H, Cacho, I, Chen, M-t, Cortijo, E, Crosta, X, De Vernal, A, Dokken, T, Duprat, J, Elderfield, H, Eynaud, F, Gersonde, R, Hayes, A, Henry, M, Hillaire-marcel, C, Huang, C-c, Jansen, E, Juggins, S, Kallel, N, Kiefer, T, Kienast, M, Labeyrie, L, Leclaire, H, Londeix, L, Mangin, S, Matthiessen, J, Marret, F, Meland, M, Morey, A E, Mulitza, S, Pflaumann, U, Pisias, N G, Radi, T, Rochon, A, Rohling, E J, Sbaffi, L, Schäfer-neth, C, Solignac, S, Spero, H, Tachikawa, K, Turon, J-l

“…Observation-based reconstructions of sea surface temperature from relatively stable periods in the past, such as the Last Glacial Maximum, represent an…”
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Deglacial subarctic Pacific surface water hydrography and nutrient dynamics and links to North Atlantic climate variability and atmospheric CO2 by Maier, E., Méheust, M., Abelmann, A., Gersonde, R., Chapligin, B., Ren, J., Stein, R., Meyer, H., Tiedemann, R.

“…The glacial‐to‐Holocene evolution of subarctic Pacific surface water stratification and silicic acid (Si) dynamics is investigated based on new combined diatom…”
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Glacial-interglacial size variability in the diatom Fragilariopsis kerguelensis: Possible iron/dust controls? by Cortese, G., Gersonde, R., Maschner, K., Medley, P.

“…The valve area of Fragilariopsis kerguelensis, the most abundant diatom species in the Southern Ocean, strongly changes in size in response to varying…”
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Plio/Pleistocene changes in the main biogenic silica carrier in the Southern Ocean, Atlantic Sector by Cortese, G., Gersonde, R.

“…The interaction between biogenic silica export and burial, paleoceanography, diatom species succession and mats formation was examined based on relative…”
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Antarctic records of precession-paced insolation-driven warming during early Pleistocene Marine Isotope Stage 31 by Scherer, R. P., Bohaty, S. M., Dunbar, R. B., Esper, O., Flores, J.-A., Gersonde, R., Harwood, D. M., Roberts, A. P., Taviani, M.

“…Precisely dated Antarctic continental margin and Southern Ocean geological records show that the early Pleistocene interglacial Marine Isotope Stage 31…”
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Laminated sediments in the Bering Sea reveal atmospheric teleconnections to Greenland climate on millennial to decadal timescales during the last deglaciation by Kuehn, H, Lembke-Jene, L, Gersonde, R, Esper, O, Lamy, F, Arz, H, Kuhn, G, Tiedemann, R

“…During the last glacial termination, the upper North Pacific Ocean underwent dramatic and rapid changes in oxygenation that lead to the transient…”
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Diatom distribution in Southern Ocean surface sediments (Atlantic sector): Implications for paleoenvironmental reconstructions by Zielinski, U., Gersonde, R.

“…A study of 230 surface sediment samples collected in the Atlantic sector of the Southern Ocean between the southernmost Weddell Sea and the Subtropical Zone…”
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Combined oxygen and silicon isotope analysis of diatom silica from a deglacial subarctic Pacific record by MAIER, E., CHAPLIGIN, B., ABELMANN, A., GERSONDE, R., ESPER, O., REN, J., FRIEDRICHSEN, H., MEYER, H., TIEDEMANN, R.

“…ABSTRACT We present an SiF4 separation line, coupled to a laser fluorination system, which allows for an efficient combined silica δ18O and δ30Si analysis (50…”
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Organic carbon, biogenic silica and diatom fluxes in the marginal winter sea-ice zone and in the Polar Front Region: interannual variations and differences in composition by Fischer, G, Gersonde, R, Wefer, G

“…Particle fluxes and composition were examined over 5 years at two mooring sites in the Polar Front Region (site PF: 50°09.S, 5°50.E) and in the marginal winter…”
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Combined oxygen and silicon isotope analysis of diatom silica from a deglacial subarctic Pacific record by MAIER, E., CHAPLIGIN, B., ABELMANN, A., GERSONDE, R., ESPER, O., REN, J., FRIEDRICHSEN, H., MEYER, H., TIEDEMANN, R.

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Late quaternary distribution of the Cycladophora davisiana radiolarian species: Reflection of possible ventilation of the North Pacific intermediate water during the Last Glacial Maximum by Matul, A. G., Abelmann, A., Gersonde, R., Nürnberg, D., Tiedemann, R., Kruglikova, S. B.

“…A comparison of micropaleontological data on the distribution of the Cycladophora davisiana radiolarian species in the surface sediment layer and the Late…”
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Geological record and reconstruction of the late Pliocene impact of the Eltanin asteroid in the Southern Ocean by Gersonde, R, Kyte, F. T, Bleil, U, Diekmann, B, Flores, J. A, Gohl, K, Grahl, G, Hagen, R, Kuhn, G, Sierro, F. J, Völker, D, Abelmann, A, Bostwick, J. A

“…In 1995, an expedition on board the research vessel FS Polarstern explored the impact site of the Eltanin asteroid in the Southern Ocean, the only known…”
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Evolution of the diatoms (Bacillariophyta). II. Nuclear-encoded small-subunit rRNA sequence comparisons confirm a paraphyletic origin for the centric diatoms by Medlin, L K, Kooistra, W H, Gersonde, R, Wellbrock, U

“…A phylogeny of the diatoms was inferred from comparisons of nuclear-encoded small subunit ribosomal RNA coding regions using maximum likelihood, weighted…”
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The last five glacial-interglacial transitions: A high-resolution 450,000-year record from the subantarctic Atlantic by Cortese, G., Abelmann, A., Gersonde, R.

“…A submillennial resolution, radiolarian‐based record of summer sea surface temperature (SST) documents the last five glacial to interglacial transitions at the…”
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Southern Ocean Pleistocene calcareous nannofossil events: calibration with isotope and geomagnetic stratigraphies by Flores, J.-A, Gersonde, R, Sierro, F.J, Niebler, H.-S

“…Several cores recovered from the northern belt of the Southern Ocean were analysed to study the Pleistocene calcareous nannofossil records. Calcareous…”
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