Logo Universitat Bremen
 
Seitenpfad:

Publikationen 2004-2000

2004

Al-Rousan, S, Pätzold, J, Al-Moghrabi, SM and Wefer, G (2004) Invasion of anthropogenic CO2 recorded in planktonic foraminifera from the northern Gulf of Aqaba. International Journal of Earth Sciences, 93(6). 1066-1076. doi:10.1007/s00531-004-0433-4

Fischer, G, Wefer, G, Romero, OE, Dittert, N, Ratmeyer, V and Donner, B (2004) Transfer of particles into the deep Atlantic and the global ocean: Control of nutrient supply and ballast production. In: Wefer, G, Mulitza, S and Ratmeyer, V (eds.) The South Atlantic in the Late Quaternary: Reconstruction of Material Budgets and Current Systems. Springer, Berlin, Heidelberg, 21-46.

Holmes, ME, Lavik, G, Fischer, G and Wefer, G (2004) Nitrogen isotopes in sinking particles and surface sediments in the Central and Southern Atlantic. In: Wefer, G, Mulitza, S and Ratmeyer, V (eds.) The South Atlantic in the Late Quaternary: Reconstruction of Material Budgets and Current Systems. Springer, Berlin, Heidelberg, 143-165. doi:10.1007/978-3-642-18917-3_8

Jennerjahn, TC, Ittekkot, V, Arz, HW, Behling, H, Pätzold, J and Wefer, G (2004) Asynchronous terrestrial and marine signals of climate change during Heinrich Events. Science, 306. 2236-2239. doi:10.1126/science.1102490 PANGAEA Supplementary Data

Kuhlmann, H, Meggers, H, Freudenthal, T and Wefer, G (2004) The transition of the monsoonal and the N Atlantic climate system off NW Africa during the Holocene. Geophysical Research Letters, 31. L22204. doi:10.1029/2004GL021267 PANGAEA Supplementary Data

Mollenhauer, G, Schneider, RR, Jennerjahn, TC, Müller, PJ and Wefer, G (2004) Organic carbon accumulation in the South Atlantic Ocean: its modern, mid-Holocene and last glacial distribution. Global and Planetary Change, 40(3-4). 249-266. doi:10.1016/j.gloplacha.2003.08.002 PANGAEA Supplementary Data

Neuer, S, Torres, ME, Rueda, MJ, Davenport, R and Wefer, G (2004) Dust deposition pulses to the eastern subtropical North Atlantic gyre: does oceans biogeochemistry respond? Global Biogeochemical Cycles, 18. GB4020. doi:10.1029/2004GB002228

Röhl, U, Brinkhuis, H, Stickley, CE, Fuller, MD, Schellenberg, SA, Wefer, G and Wiliams, GL (2004) Sea Level and astronomically induced environmental changes in middle and late Eocene sediments from the East Tasman Plateau. In: Exon, NF, Kennett, JP and Malone, M (eds.) The Cenozoic Southern Ocean: Tectonics, Sedimentation, and Climate Change Between Australia and Antarctica. Geophysical Monograph Series, 151. American Geophysical Union (AGU), 127-151. ISBN 9780875904160 doi:10.1029/151GM09 PANGAEA Supplementary Data

Rühlemann, C, Mulitza, S, Lohmann, G, Paul, A, Prange, M and Wefer, G (2004) Intermediate depth warming in the tropical Atlantic related to weakened thermohaline circulation: Combining paleoclimate and modeling data for the last deglaciation. Paleoceanography, 19. PA1025. doi:10.1029/2003PA000948 PANGAEA Supplementary Data

2003

Adegbie, AT, Schneider, RR, Röhl, U and Wefer, G (2003) Glacial millennial-scale fluctuations in central African precipitation recorded in terrigenous sediment supply and freshwater signals offshore Cameroon. Palaeogeography, Palaeoclimatology, Palaeoecology, 197(3-4). 323-333. doi:10.1016/S0031-0182(03)00474-7 PANGAEA Supplementary Data

Al-Rousan, S, Al-Moghrabi, SM, Pätzold, J and Wefer, G (2003) Stable oxygen isotopes in Porites corals monitor weekly temperature variations in the northern Gulf of Aqaba, Red Sea. Coral Reefs, 22(4). 346-356. doi:10.1007/s00338-003-0321-6 PANGAEA Supplementary Data

Berger, WH and Wefer, G (2003) On the dynamics of the ice ages: stage-11 paradox, mid-Brunhes climate shift, and 100-ky cycle. In: Droxler, AW, Poore, RZ and Burckle, LH (eds.) Earths's Climate and Orbital Eccentricity: The Marine Isotope Stage 11 Question. American Geophysical Union, 41-59. doi:10.1029/137GM04

Grützner, J, Rebesco, M, Cooper, AK, Forsberg, CF, Kryc, KA and Wefer, G (2003) Evidence for orbitally controlled size variations of the East Antarctic ice sheet during the late Miocene. Geology, 31. 777-780. doi:10.1130/G19574.1

Jahn, B, Donner, B, Müller, PJ, Röhl, U, Schneider, RR and Wefer, G (2003) Pleistocene variations in dust input and marine productivity in the northern Benguela Current: Evidence of evolution of global glacial-interglacial cycles. Palaeogeography, Palaeoclimatology, Palaeoecology, 193(3-4). 515-533. doi:10.1016/S0031-0182(03)00264-5 PANGAEA Supplementary Data

Mulitza, S, Boltovskoy, D, Donner, B, Meggers, H, Paul, A and Wefer, G (2003) Temperature: d18O relationships of planktic foraminifera collected from surface waters. Palaeogeography, Palaeoclimatology, Palaeoecology, 202(1-2). 143-152. doi:10.1016/S0031-0182(03)00633-3 PANGAEA Supplementary Data

Niebler, HS, Arz, HW, Donner, B, Mulitza, S, Pätzold, J and Wefer, G (2003) Sea surface temperatures in the equatorial and South Atlantic Ocean during the Last Glacial Maximum (23-19 ka). Paleoceanography, 18(3). 1069. doi:10.1029/2003PA000902 PANGAEA Supplementary Data

Romero, OE, Dupont, LM, Wyputta, U, Jahns, S and Wefer, G (2003) Temporal variability of fluxes of eolian-transported freshwater diatoms, phytoliths, and pollen grains off Cape Blanc as reflection of land-atmosphere-ocean interactions in northwest Africa. Journal of Geophysical Research-Oceans, 108(C5). 3153. doi:10.1029/2000JC000375 PANGAEA Supplementary Data

Romero, OE, Mollenhauer, G, Schneider, RR and Wefer, G (2003) Oscillations of the siliceous imprint in the central Benguela Upwelling System from MIS3 through the early Holocene: the influence of the Southern Ocean. Journal of Quaternary Science, 18(8). 733-743. doi:10.1002/jqs.789 PANGAEA Supplementary Data

Sarnthein, M, Gersonde, R, Niebler, HS, Pflaumann, U, Spielhagen, RF, Thiede, J, Wefer, G and Weinelt, M (2003) Overview of Glacial Atlantic Ocean Mapping (GLAMAP 2000). Paleoceanography, 18(2). 1030. doi:10.1029/2002PA000769

Usbeck, R, Schlitzer, R, Fischer, G and Wefer, G (2003) Particle fluxes in the ocean: comparison of sediment trap data with results from inverse modeling. Journal of Marine Systems, 39(3-4). 167-183. doi:10.1016/S0924-7963(03)00029-0

2002

Al-Rousan, S, Al-Moghrabi, SM, Pätzold, J and Wefer, G (2002) Environmental and biological effects on the stable oxygen isotope records of corals in the northern Gulf of Aqaba, Red Sea. Marine Ecology Progress Series, 239. 301-310. doi:10.3354/meps239301 PANGAEA Supplementary Data

Behling, H, Arz, HW, Pätzold, J and Wefer, G (2002) Late Quaternary vegetational and climate dynamics in southeastern Brazil, inferences from marine cores GeoB 3229-2 and GeoB 3202-1. Palaeogeography, Palaeoclimatology, Palaeoecology, 179(3-4). 227-243. doi:10.1016/S0031-0182(01)00435-7

Benthien, A, Andersen, N, Schulte, S, Müller, PJ, Schneider, RR and Wefer, G (2002) Carbon isotopic composition of the C37:2 alkenone in core-top sediments of the South Atlantic Ocean: Effects of CO2 and nutrient concentrations. Global Biogeochemical Cycles, 16(1). 1012. doi:10.1029/2001GB001433 PANGAEA Supplementary Data

Berger, WH, Lange, CB and Wefer, G (2002) Upwelling history of the Benguela-Namibia system: a synthesis of Leg 175 results. In: Wefer, G, Berger, WH and Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results. College Station, TX (Ocean Drilling Program), 1-103. doi:10.2973/odp.proc.sr.175.235.2002 PANGAEA Supplementary Data

Berger, WH, Lange, CB and Wefer, G (2002) Upwelling off Namibia: Opals and Diatoms. In: White, K and Urquhart, E (eds.) ODP's Greatest Hits, Volume 2. Joint Oceanographic Institutions, 1.

Berger, WH, Pätzold, J and Wefer, G (2002) Times of quiet, times of agitation: Sverdrup's conjecture and the Bermuda coral record. In: Wefer, G, Berger, WH, Behre, KH and Jansen, E (eds.) Climate development and history of the North Atlantic Realm. Springer, Berlin, Heidelberg, New York, 89-99.

Berger, WH, Pätzold, J and Wefer, G (2002) A case for climate cycles: orbit, sun and moon. In: Wefer, G, Berger, WH, Behre, KH and Jansen, E (eds.) Climate development and history of the North Atlantic Realm. Springer, Berlin, Heidelberg, New York, 101-123.

Berger, WH and Wefer, G (2002) On the reconstruction of upwelling history: Namibia upwelling in context. Marine Geology, 180(1-4). 3-28. doi:10.1016/S0025-3227(01)00203-1

Berger, WH and Wefer, G (2002) Paleoceanography. In: McGraw Hill Encyclopedia of Science and Technology, 9th Edition. McGraw-Hill Professional.

Diepenbroek, M, Grobe, H, Reinke, M, Schindler, U, Schlitzer, R, Sieger, R and Wefer, G (2002) PANGAEA - an information system for environmental sciences. Computers & Geosciences, 28(10). 1201-1210. doi:10.1016/S0098-3004(02)00039-0

Fischer, G, Gersonde, R and Wefer, G (2002) Organic carbon, biogenic silica and diatom fluxes in the marginal winter sea ice zone and in the Polar Front Region: interannual variation and changes in composition. Deep Sea Research Part II: Topical Studies in Oceanography, 49(9-10). 1721-1745. doi:10.1016/S0967-0645(02)00009-7 PANGAEA Supplementary Data

Freudenthal, T, Meggers, H, Henderiks, J, Kuhlmann, H, Moreno, A and Wefer, G (2002) Upwelling intensity and filament activity off Morocco during the last 250,000 years. Deep Sea Research Part II: Topical Studies in Oceanography, 49(17). 3655-3674. doi:10.1016/S0967-0645(02)00101-7 PANGAEA Supplementary Data

Hebbeln, D, Marchant, M and Wefer, G (2002) Paleoproductivity in the southern Peru-Chile Current through the last 33,000 years. Marine Geology, 186(3-4). 487-504. doi:10.1016/S0025-3227(02)00331-6

Holmes, ME, Lavik, G, Fischer, G, Segl, M, Ruhland, G and Wefer, G (2002) Seasonal variability of d15N in sinking particles in the Benguela upwelling region. Deep Sea Research Part I: Oceanographic Research Papers, 49(2). 377-394. doi:10.1016/S0967-0637(01)00055-3 PANGAEA Supplementary Data

Kim, JH, Schneider, RR, Hebbeln, D, Müller, PJ and Wefer, G (2002) Last deglacial sea-surface temperature evolution in the Southeast Pacific compared to climate changes on the Sourth American continent. Quaternary Science Reviews, 21(18-19). 2085-2097. doi:10.1016/S0277-3791(02)00012-4 PANGAEA Supplementary Data

Kim, JH, Schneider, RR, Müller, PJ and Wefer, G (2002) Interhemispheric comparison of deglacial sea-surface temperature patterns in Atlantic eastern boundary currents. Earth and Planetary Science Letters, 194(3-4). 383-393. doi:10.1016/S0012-821X(01)00545-3 PANGAEA Supplementary Data

Kuhnert, H, Pätzold, J, Schnetger, B and Wefer, G (2002) Sea-surface temperature variability in the 16th century at Bermuda inferred from coral records. Palaeogeography, Palaeoclimatology, Palaeoecology, 179(3-4). 159-171. doi:10.1016/S0031-0182(01)00410-2 PANGAEA Supplementary Data

Lamy, F, Rühlemann, C, Hebbeln, D and Wefer, G (2002) High- and low-latitude climate control on the position of the southern Peru-Chile Current during the Holocene. Paleoceanography, 17(2). 1028. doi:10.1029/2001PA000727 PANGAEA Supplementary Data

Mollenhauer, G, Schneider, RR, Müller, PJ, Spieß, V and Wefer, G (2002) Glacial/Interglacial variability in the Benguela upwelling system: Spatial distribution and budgets of organic carbon accumulation. Global Biogeochemical Cycles, 16(4). 1134. doi:10.1029/2001GB001488 PANGAEA Supplementary Data

Neuer, S, Davenport, R, Freudenthal, T, Wefer, G, Llinás, O, Rueda, MJ, Steinberg, DK and Karl, DM (2002) Differences in the biological carbon pump at three subtropical ocean sites. Geophysical Research Letters, 29(18). 1885. doi:10.1029/2002GL015393 PANGAEA Supplementary Data

Romero, OE, Boeckel, B, Donner, B, Lavik, G, Fischer, G and Wefer, G (2002) Seasonal productivity dynamics in the pelagic central Benguela System inferred from the flux of carbonate and silicate organisms. Journal of Marine Systems, 37(4). 259-278. doi:10.1016/S0924-7963(02)00189-6 PANGAEA Supplementary Data

Romero, OE, Lange, CB and Wefer, G (2002) Interannual variability (1988-1991) of siliceous phytoplankton fluxes off NW Africa. Journal of Plankton Research, 24(10). 1035-1046. doi:10.1093/plankt/24.10.1035 PANGAEA Supplementary Data

Uliana, E, Lange, CB and Wefer, G (2002) Evidence for Congo River freshwater load in Late Quaternary sediments of ODP Site 1077 (5°S, 10°E). Palaeogeography, Palaeoclimatology, Palaeoecology, 187(1-2). 137-150. doi:10.1016/S0031-0182(02)00514-X PANGAEA Supplementary Data

Vidal, L, Bickert, T, Wefer, G and Röhl, U (2002) Late Miocene stable isotope stratigraphy of SE Atlantic ODP Site 1085: Relation to Messinian events. Marine Geology, 180. 71-85.

Wefer, G, Berger, WH and Richter, C (2002) Proc. ODP, Scientific Results, 175: College Station, Texas (Ocean Drilling Programm)

2001

Dupont, LM, Donner, B, Schneider, RR and Wefer, G (2001) Mid-Pleistocene environmental change in tropical Africa began as early as 1.05 Ma (palynological results of ODP Sites 1075). Geology, 29(3). 195-198.

Freudenthal, T, Neuer, S, Meggers, H, Davenport, R and Wefer, G (2001) Influence of lateral particle advection and organic matter degradation on sediment accumulation and stable nitrogen isotope ratios along a productivity gradient in the Canary Islands region. Marine Geology, 177. 93-109.

Freudenthal, T, Wagner, T, Wenzhöfer, F, Zabel, M and Wefer, G (2001) Early diagenesis of organic matter from sediments of the eastern subtropical Atlantic: Evidence from stable nitrogen and carbon isotopes. Geochimica Cosmochimica Acta, 65(11). 1795-1808. doi:10.1016/S0016-7037(01)00554-3 PANGAEA Supplementary Data

Klump, J, Hebbeln, D and Wefer, G (2001) High concentration of biogenic barium in Pacific sediments after Termination I - a signal of changes in productivity and deep water chemistry. Marine Geology, 177(1-2). 1-11. doi:10.1016/S0025-3227(01)00120-7 PANGAEA Supplementary Data

Lamy, F, Hebbeln, D, Röhl, U and Wefer, G (2001) Holocene rainfall variability in southern Chile: a marine record of latitudinal shifts of the Southern Westerlies. Earth and Planetary Science Letters, 185. 369-382.

Romero, OE, Hebbeln, D and Wefer, G (2001) Temporal and spatial variability in export production in the SE Pacific Ocean: evidence from siliceous plankton fluxes and surface sediment assemblages. Deep Sea Research Part I: Oceanographic Research Papers, 48(12). 2673-2697. doi:10.1016/S0967-0637(01)00037-1 PANGAEA Supplementary Data

Röhl, U, Ogg, JG, Geib, TL and Wefer, G (2001) Astronomical calibration of the Danian time scale. In: Norris, RD, Kroon, D and Klaus, A (eds.) Western North Atlantic Palaeogene and Cretaceous Palaeoceanography. Special Publication(183). Geological Society, London, 163-183. ISBN 1862390789 doi:10.1144/GSL.SP.2001.183.01.09 PANGAEA Supplementary Data

Wefer, G and Berger, WH (2001) Reconstruction of productivity from the sedimentary record. In: Steele, JH, Turekian, KK and Thorpe , SA (eds.) Encyclopedia of Ocean Sciences. Elsevier Inc., 333-343. ISBN 978-0-12-374473-9 doi:10.1016/B978-012374473-9.00251-4

Wefer, G and et al (2001) Report and preliminary results of Meteor Cruise M 46/4, Mar del Plata (Argentina) - Salvador da Bahia (Brazil), February 10 - March 13, 2000. With partial results of METEOR cruise M 46/2. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 173. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000102987

2000

Donner, B and Wefer, G (2000) Bericht über den JGOFS-Workshop am 18.-21.9.2000 in Bremen: Biogeochemical Cycles: German Contributions to the International Joint Global Ocean Flux Study. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 162. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000102838

Schlünz, B and Wefer, G (2000) Bericht über den 8. JGOFS-Workshop am 2. und 3.12.1999 in Bremen. Im Anhang: Publikationen zum deutschen Beitrag zur Joint Global Ocean Flux Study (JGOFS), Stand 1/2000. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 150. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000102686

Willems, H, Bleil, U, Henrich, R, Herterich, K, Jørgensen, BB, Kuß, HJ, Olesch, M, Schulz, HD, Spieß, V and Wefer, G (2000) Abschlußbericht des Graduierten-Kollegs Stoff-Flüsse in marinen Geosystemen. Zusammenfassung und Berichtszeitraum Januar 1996 - Dezember 2000. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 160. Department of Geosciences, Bremen University. urn:nbn:de:gbv:46-ep000102807

Bauch, D, Carstens, J, Wefer, G and Thiede, J (2000) The imprint of anthropogenic CO2 in the Arctic Ocean: evidence from planktic 13C data from watercolumn and sediment surfaces. Deep-Sea Res. II, 47, 1791-1808.

Behling, H, Arz, HW, Pätzold, J and Wefer, G (2000) Late Quaternary vegetational and climate dynamics in northeastern Brazil, inferences from marine core GeoB 3104-1. Quaternary Science Reviews, 19, 981-994.

Budziak, D, Schneider, RR, Rosteck, F, Müller, PJ, Bard, E and Wefer, G (2000) Late Quaternary insolation forcing on total organic carbon and C37 alkenone variations in the Arabian Sea. Paleoceanography, 15. 307-321.

Draschba, S, Pätzold, J and Wefer, G (2000) North Atlantic climate variability since AD 1350 recorded in 18O and skeletal density of Bermuda corals. International Journal of Earth Sciences, 88. 733-741.

Felis, T, Pätzold, J, Loya, Y, Fine, M, Nawar, NH and Wefer, G (2000) A coral oxygen isotope record from the northern Red Sea documenting NAO, ENSO, and North Pacific teleconnections on Middle East climate variability since the year 1750. Paleoceanography, 15(6). 679-694.

Fischer, G, Ratmeyer, V and Wefer, G (2000) Organic carbon fluxes in the Atlantic and the Southern Ocean: relationship to primary production compiled from satellite radiometer data. Deep-Sea Research II, 47. 1961-1997.

Ganssen, G and Wefer, G (Guest eds.) (2000) Particle flux and its preservation in deep-sea sediments. Deep-Sea Research II, 47 (9-11), 600 pp.

Hebbeln, D, Lamy, F, Marchant, M, Klump, J and Wefer, G (2000) Present and past sedimentation along the Chilean continental slope. Sonderheft der Zeitschrift Angewandte Geologie, SH1. 125-132.

Hebbeln, D, Marchant, M, Freudenthal, T and Wefer, G (2000) Surface sediment distribution along the Chilean continental slope related to upwelling and productivity. Marine Geology, 164. 119-137.

Hebbeln, D, Marchant, M and Wefer, G (2000) Seasonal variations of the particle flux in the Peru-Chile current at 30°S under “normal” and under El-Niño conditions. Deep-Sea Research II, 47. 2101-2128.

Klump, J, Hebbeln, D and Wefer, G (2000) The impact of sediment provenance on barium-based productivity estimates. Marine Geology, 169. 259-271.

Kuhnert, H, Pätzold, J, Wyrwoll, K-H and Wefer, G (2000) Monitoring climate variability over the past 116 years in coral oxygen isotopes from Ningaloo Reef, Western Australia. International Journal of Earth Sciences, 88. 725-732.

Lamy, F, Klump, J, Hebbeln, D and Wefer, G (2000) Late Quarternary rapid climate change in northern Chile. Terra Nova, 12. 8-13.

Marlow, JR, Lange, CB, Wefer, G and Rosell-Melé (2000) Upwelling intensification as part of the Pliocene-Pleistocene climate transition. Science, 290. 2288-2291.

Meinecke, G, Ratmeyer, V and Wefer, G (2000) DOMEST Project: Data Access to the Deep Sea. Sea Technology, July 2000. 25-29.

Moustafa, YA, Pätzold, J, Loya, Y and Wefer, G (2000) Mid-Holocene stable isotope record of corals from the northern Red Sea. Int. Journ. Earth Sciences, 88. 742-751.

Röhl, U, Bralower, TJ, Norris, RD and Wefer, G (2000) New chronology for the late Paleocene thermal maximum and its environmental implications. Geology, 28(10). 927-930.

Romero, OE, Fischer, G, Lange, CB and Wefer, G (2000) Siliceous phytoplankton of the western equatorial Atlantic: sediment traps and surface sediments. Deep-Sea Research II, 47. 1939-1959.

Schlünz, B, Schneider, RR, Müller, PJ and Wefer, G (2000) Late Quaternary organic carbon accumulation south of Barbados: influence of the Orinoco and Amazon rivers? Deep-Sea Research I, 47. 1101-1124.

Wefer, G and Berger, WH (2000) Ozean und Klima. In: Huch, M, Warnecke, G and & Germann, K (eds.)nArchiv Erde. Klimazeugnisse der Erdgeschichte. Perspektiven für die Zukunft. Springer-Verlag, Berlin, Heidelberg, pp. 51-107.