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(subm.) Interruption of northeasterly trade winds during Heinrich Stadial 1 megadroughts in the Sahel. Nature Geoscience 
(subm.) Discrepancy between barium and biogenic constituents in sediments of the Ceara Rise and Sierra Leone Rise - effect of non steady-state diagenesis. Chemical Geology
(in press) Orbital- and millennial-scale changes in the hydrologic cycle and vegetation in the western African Sahel: Insights from individual plant waxD and 13C. Quaternary Science Reviews
(in press) Application of self-absorption correction method in gamma spectroscopy for 210Pb and 137Cs sediment chronology on the continental slope off NW Africa. Radioprotection
(in prep.) Stable isotope signature of South Atlantic Central Water in the Walvis Bay coastal upwelling cell., in preparation
(2010) How different proxies record precipitation variability over southeastern South America. IODP Conference Series: Earth and Environmental Science, 9 (1), 012007

(2010) Increase in African dust flux at the onset of commercial agriculture in the Sahel region. Nature, 466, 226-228

(2009) Palynological evidence for climatic and oceanic variability off NW Africa during the late Holocene. Quaternary Research, 72 (2), 188-197

(2009) Wet phases in the Sahara/Sahel region and human migration patterns in North Africa. Proceedings of the National Academy of Sciences of the United States of America, 106 (48), 20159-20163

(2009) Possible impact of the Atlantic Multidecadal Oscillation on the South American summer monsoon. Geophysical Research Letters, 36, L21707

(2009) Modeling planktonic foraminiferal seasonality: Implications for sea-surface temperature reconstructions. Marine Micropaleontology, 72(1-2), 1-9 ![]()
(2009) Modeling the seasonal distribution of planktonic foraminifera during the Last Glacial Maximum. Paleoceanography, 24, PA2216 ![]()
(2009) Millennial-scale northwest African droughts related to Heinrich events and Dansgaard-Oeschger cycles: Evidence in marine sediments from offshore Senegal. Paleoceanography, 24, PA1205

(2009) Constraints on the magnitude and patterns of ocean cooling at the Last Glacial Maximum. Nature Geoscience, 2(2), 127-132

(2009) Extratropical forcing of Sahel aridity during Heinrich stadials. Geophysical Research Letters, 36, L20707

(2009) Challenges to Understanding Ocean Circulation during the Last Glacial Maximum. EOS, Transactions of the American Geophysical Union, 90(19), 169 ![]()
(2009) Stable isotopes of planktonic foraminifera from tropical Atlantic/Caribbean core-tops: Implications for reconstructing upper ocean stratification. Marine Micropaleontology, 71(1-2), 1-19

(2009) Constraints on the magnitude and pattern of ocean cooling at the Last Glacial Maximum. Nature Geoscience, 2, 127-132 ![]()
(2008) South Atlantic interocean exchange as the trigger for the Bølling warm event. Geology, 36(12), 919-922

(2008) Predicting the global distribution of planktonic foraminifera using a dynamic ecosystem model. Biogeosciences, 5, 891-911 ![]()
(2008) Climate history and sedimentation processes off NW Africa, Cruise No. 65, June 11 - August 10, 2005, Dakar (Senegal) - Las Palmas (Spain). Meteor-Berichte, Institut für Meereskunde der Universität Hamburg, 08-2, 115 pp 
(2008) Sahel megadroughts triggered by glacial slowdowns of Atlantic meridional overturning. Paleoceanography, 23, PA4206

(2008) Challenges to understanding past and future climate in Africa. EOS, Transactions of the American Geophysical Union, 89(21), 196 ![]()
(2007) Signature of the Brazil-Malvinas Confluence (Argentine Basin) in the isotopic composition of planktonic foraminifera from surface sediments. Marine Micropaleontology, 64(1-2), 52-66

(2007) Atlantic Meridional Overturning Circulation During the Last Glacial Maximum. Science, 316, 66-69 ![]()
(2007) Rapid 20th century increase in coastal upwelling off northwest Africa. Science, 315, 637-639

(2006) Report and preliminary results of Metor-Cruise M65/1, Dakar-Dakar, 11.06.-1.07.2005. Berichte, Fachbereich Geowissenschaften, Universität Bremen, 252, 149 pp

(2006) Late Pleistocene paleoceanographic records of the South Atlantic Ocean. Encyclopedia of Quaternary Science, Elsevier, 1816-1831
(2005) Responce of intermediate water temperature to changes in thermohaline overtuning. GV-Tagung, Erlangen, Sept. 2005
(2005) Abrupt climate change during the last glacial period: assimilation of paleo-proxy data into a coupled climate model. GV-Tagung, Erlangen, Sept. 2005
(2005) Perspectives on mapping the MARGO reconstructions by variogram analysis/kriging and objective analysis. Quaternary Science Reviews, 24(7-9), 1083-1093 ![]()
(2005) A global compilation of late Holocene planktonic foraminiferal d18O: relationship between surface water temperature and d18O. Quaternary Science Reviews, 24(7-9), 853-868 ![]()
(2005) A global compilation of Late Holocene planktonic foraminiferal d18O: Relationship between surface water temperature and d18O. Quaternary Science Reviews, 24(7-9), 853-868

(2005) Sensitivity of planktic foraminifera to sea surface temperature and export production as derived from sediment trap data. Marine Micropaleontology, 55(1-2), 75-105

(2005) Global prediction of planktic foraminiferal fluxes from hydrographic and productivity data. Biogeosciences Discussions, 2, 849-895 ![]()
(2004) Millennial-scale paleoclimatic and -oceanographic variability of the western tropical South Atlantic during the last glacial. AGU 2004 Fall Meeting, San Francisco, California
(2004) The South Atlantic Oxygen Isotope Record of Planktic Foraminifera. In: Wefer, G; Mulitza, S & Ratmeyer, V (eds.), The South Atlantic in the Late Quaternary: Reconstruction of Material Budgets and Current Systems, Springer, Berlin, Heidelberg, New York, 121-142
(2004) Mg/Ca ratios of the benthic foraminifera Oridorsalis umbonatus obtained by laser ablation from core top sediments: Relationship to bottom water temperatures. Geochemistry, Geophysics, Geosystems, 5 (12), Q12013

(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

(2004) The South Atlantic in the Late Quaternary: Reconstruction of Material Budgets and Current Systems. Springer, Berlin, Heidelberg, New York
(2004) Global prediction of planktic foraminiferal assemblages from hydrographic and productivity data. 8th International Conference on Paleoceanography, September 2004, Biarritz, France
(2003) Reconstruction of SE trade wind intensity based on sea-surface temperature gradients in the SE Atlantic over the last 25 kyr. Geophysical Research Letters, 30(22), 2144

(2003) Temperature: d18O relationships of planktic foraminifera collected from surface waters. Palaeogeography, Palaeoclimatology, Palaeoecology, 202(1-2), 143-152

(2003) Response of intermediate water temperature to changes in thermohaline overturning. EGS-AGU-EUG Joint Assembly, Nice, France
(2003) Sea surface temperatures in the equatorial and South Atlantic Ocean during the Last Glacial Maximum (23–19 ka). Paleoceanography, 18(3), 1069

(2003) Paired Mg/Ca and d18O in Planktonic Foraminifers from Caribbean and (Sub-)Tropical South Atlantic Core-Top Sediments - Assessing the Dissolution Effect. AGU 2003, Fall Meeting, 8-12 December 2003, San Francisco, California
(2003) Lateral particle transport causes anomalously low alkenone temperatures in suspended particulate matter collected from surface waters colder than 20°C. EGS-AGU-EUG Joint Assembly, Nice, France
(2003) Planktic foraminiferal sensitivity to sea surface temperature and export production as revealed from sediment trap experiments. EGS-AGU-EUG Joint Assembly, Nice, France
(2002) The mid-Brunhes Carbon Isotope Excursion - Evidence of Low Productivity in the Ocean?. AGU 2002 Fall Meeting, San Francisco, California
(2002) Glacial Cooling in the Upwelling Region off Namibia: Changes in Upwelling Intensity or Preformed Temperature?. AGU 2002 Fall Meeting, San Francisco, California
(2002) Tracing Thermohaline Circulation Slowdown by Temperature Increase of the Intermediate-depth Atlantic Ocean. AGU 2002 Fall Meeting, San Francisco, California
(2002) Global calibration of ecological models for planktic foraminifera from coretop carbonate oxygen-18. Marine Micropaleontology, 44(3-4), 125-140 ![]()
(2001) Late Quaternary changes of western equatorial Atlantic surface circulation and Amazon lowland climate recorded in Ceara Rise deep-sea sediments. Paleoceanography, 16(3), 293-305

(2001) Shifts in the Position of the North Equatorial Current and Rapid Productivity Changes in the western Tropical Atlantic during the Last Glacial. Paleoceanography, 16(5), 479-490

(2000) African monsoonal precipitation modulated by interhemispheric temperature gradients. Quaternary Research, 53(2), 270-274 ![]()
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(1999) Simulation of Oxygen Isotopes in a Global Ocean Model. In: Fischer, G & Wefer, G (eds.), Use of Proxies in Paleoceanography - Examples from the South Atlantic, Springer, Berlin, Heidelberg, 655-686
(1999) Warming of the tropical Atlantic Ocean and slowdown of thermohaline circulation during the last deglaciation. Nature, 402(6761), 511-514

(1999) On the Reconstruction of Paleosalinities. In: Fischer, G & Wefer, G (eds.), Use of Proxies in Paleoceanography - Examples from the South Atlantic, Springer, Berlin, Heidelberg, 207-228 
(1999) Response of the tropical Atlantic thermocline to Late Quaternary trade wind changes. Paleoceanography, 14(3), 374-383

(1998) Late Quaternary d13C gradients and carbonate accumulation in the western equatorial Atlantic. Earth and Planetary Science Letters, 155(3-4), 237-249

(1998) Temperature sensitivity of planktonic foraminifera and its influence on the oxygen isotope record. Marine Micropaleontology, 33(3-4), 223-240 ![]()
(1998) Oxygen isotopes versus CLIMAP (18 ka) temperatures: A comparisons from the tropical Atlantic. Geology, 26(8), 675-678

(1997) Late Quaternary variations of sea surface salinity and temperature in the western tropical Atlantic: Evidence from d18O of Globigerinoides sacculifer. Paleoceanography, 12(6), 764-772

(1997) Planktonic foraminifera as records of past surface water stratification. Geology, 25(4), 335-338

(1996) Late Quaternary productivity changes in the western equatorial Atlantic: Evidence from 230Th-normalized carbonate and organic carbon accumulation rates. Marine Geology, 135(1-4), 127-152

(1996) Late Quaternary surface circulation of the South Atlantic: The stable isotope record and implications for heat transport and productivity. In: Wefer, G; Berger, W H; Siedler, G & Webb, D (eds.), The South Atlantic: Present and Past Circulation, Springer, Berlin, Heidelberg, 461-502 
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