Estimating the hydrogen isotopic composition of past precipitation using leaf-waxes from western Africa

Quaternary Science Reviews

Volumn 65, Issue , 2013, Pages 88-101

  Collins, James A ^a   Schefuß, Enno ^a   Mulitza, Stefan ^a   Prange, Matthias ^a   Werner, Martin ^b   Tharammal, Thejna ^a   Paul, André ^a   Wefer, Gerold ^a  

^a UNIVERSITY OF BREMEN   (Germany)

^b ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH   (Germany)

Author keywords

African; Hydrogen isotopic composition of precipitation; Leaf waxes; Organic geochemistry

Indexed keywords

AFRICAN; FRACTIONATION FACTORS; HYDROGEN ISOTOPIC COMPOSITION; HYDROLOGICAL CHANGES; LAST GLACIAL MAXIMUM; LATE HOLOCENE; LEAF-WAXES; MARINE CORES; N-ALKANES; ORGANIC GEOCHEMISTRY; QUANTITATIVE ESTIMATES; VEGETATION TYPE; WET SEASON;

FORESTRY; HYDROGEN; ISOTOPES; LASERS; PARAFFINS; VEGETATION;

ESTIMATION;

COASTAL ZONE; ESTIMATION METHOD; HEINRICH EVENT; HOLOCENE; HYDROLOGICAL CHANGE; ISOTOPIC COMPOSITION; LAST GLACIAL MAXIMUM; LEAF; MARINE SEDIMENT; ORGANIC GEOCHEMISTRY; PRECIPITATION (CLIMATOLOGY); RELATIVE HUMIDITY; VEGETATION HISTORY; WET SEASON;

AFRICA; ALKANES; FORESTRY; HUMIDITY; HYDROGEN; ISOTOPES; LEAVES; PLANTS; PRECIPITATION; WAX;

WEST AFRICA;

EID: 84873738577     PISSN: 02773791     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.quascirev.2013.01.007     Document Type: Article

References (136)

1. Adegbie A.T., Schneider R.R., Röhl U., Wefer G. Glacial millennial-scale fluctuations in central African precipitation recorded in terrigenous sediment supply and freshwater signals offshore Cameroon. Palaeogeography, Palaeoclimatology, Palaeoecology 2003, 197:323-333.
2. Bird M.I., Summons R.E., Gagan M.K., Roksandic Z., Dowling L., Head J., Keith Fifield L., Cresswell R.G., Johnson D.P. Terrestrial vegetation change inferred from n-alkane δ13C analysis in the marine environment. Geochimica et Cosmochimica Acta 1995, 59:2853-2857.
3. Bowen G.J., Revenaugh J. Interpolating the isotopic composition of modern meteoric precipitation. Water Resources Research 2003, 39:1299.
4. Braconnot P., Otto-Bliesner B., Harrison S., Joussaume S., Peterchmitt J.Y., Abe-Ouchi A., Crucifix M., Driesschaert E., Fichefet T., Hewitt C.D., Kageyama M., Kitoh A., Laine A., Loutre M.F., Marti O., Merkel U., Ramstein G., Valdes P., Weber S.L., Yu Y., Zhao Y. Results of PMIP2 coupled simulations of the Mid-Holocene and Last Glacial Maximum - part 1: experiments and large-scale features. Climate of the Past 2007, 3:261-277.
5. Bremner J.M., Willis J.P. Mineralogy and geochemistry of the clay fraction of sediments from the Namibian continental margin and the adjacent hinterland. Marine Geology 1993, 115:85-116.
6. Castañeda I.S., Mulitza S., Schefuß E., Lopes dos Santos R.A., Sinninghe Damsté J.S., Schouten S. 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 2009, 106:20159-20163.
7. Chase B.M., Meadows M.E. Late Quaternary dynamics of southern Africa's winter rainfall zone. Earth-science Reviews 2007, 84:103-138.
8. Chase B.M., Meadows M.E., Scott L., Thomas D.S.G., Marais E., Sealy J., Reimer P.J. A record of rapid Holocene climate change preserved in hyrax middens from southwestern Africa. Geology 2009, 37:703-706.
9. Chikaraishi Y., Naraoka H., Poulson S.R. Hydrogen and carbon isotopic fractionations of lipid biosynthesis among terrestrial (C3, C4 and CAM) and aquatic plants. Phytochemistry 2004, 65:1369-1381.
10. Collins J.A., Schefuß E., Heslop D., Mulitza S., Prange M., Zabel M., Tjallingii R., Dokken T.M., Huang E., Mackensen A., Schulz M., Tian J., Zarriess M., Wefer G. Interhemispheric symmetry of the tropical African rainbelt over the past 23,000 years. Nature Geoscience 2011, 4:42-45.
11. Conte M.H., Weber J.C. Long-range atmospheric transport of terrestrial biomarkers to the western North Atlantic. Global Biogeochemical Cycles 2002, 16:1142.
12. Craig H. Isotopic variations in meteoric waters. Science 1961, 133:1702-1703.
13. Dansgaard W. Stable isotopes in precipitation. Tellus 1964, 16:436-468.
14. Dayem K.E., Molnar P., Battisti D.S., Roe G.H. Lessons learned from oxygen isotopes in modern precipitation applied to interpretation of speleothem records of paleoclimate from eastern Asia. Earth and Planetary Science Letters 2010, 295:219-230.
15. de Abreu L., Shackleton N.J., Schönfeld J., Hall M., Chapman M. Millennial-scale oceanic climate variability off the Western Iberian margin during the last two glacial periods. Marine Geology 2003, 196:1-20.
16. Diefendorf A.F., Mueller K.E., Wing S.L., Koch P.L., Freeman K.H. Global patterns in leaf 13C discrimination and implications for studies of past and future climate. Proceedings of the National Academy of Sciences 2010, 107:5738-5743.
17. Douglas P.M.J., Pagani M., Brenner M., Hodell D.A., Curtis J.H. Aridity and vegetation composition are important determinants of leaf-wax δD values in southeastern Mexico and Central America. Geochimica et Cosmochimica Acta 2012, 97:24-45.
18. Drenzek N.J., Hughen K.A., Montluçon D.B., Southon J.R., dos Santos G.M., Druffel E.R.M., Giosan L., Eglinton T.I. A new look at old carbon in active margin sediments. Geology 2009, 37:239-242.
19. Dupont L.M., Behling H., Kim J.-H. Thirty thousand years of vegetation development and climate change in Angola (Ocean Drilling Program Site 1078). Climate of the Past 2008, 4:107-124.
20. Dupont L.M., Jahns S., Marret F., Ning S. Vegetation change in equatorial West Africa: time-slices for the last 150 ka. Palaeogeography, Palaeoclimatology, Palaeoecology 2000, 155:95-122.
21. Dyke A.S., Andrews J.T., Clark P.U., England J.H., Miller G.H., Shaw J., Veillette J.J. The Laurentide and Innuitian ice sheets during the Last Glacial Maximum. Quaternary Science Reviews 2002, 21:9-31.
22. Eckardt F.D., Kuring N. SeaWiFS identifies dust sources in the Namib Desert. International Journal of Remote Sensing 2005, 26:4159-4167.
23. Eckardt, F.D., Soderberg, K., Coop, L.J., Muller, A.A., Vickery, K.J., Grandin, R.D., Jack, C., Kapalanga, T.S., Henschel, J. The nature of moisture at Gobabeb, in the central Namib Desert. Journal of Arid Environments, doi:10.1016/j.jaridenv.2012.01.011.
24. Edwards E.J., Osborne C.P., Stromberg C.A.E., Smith S.A., Consortium C.G. The origins of C4 grasslands: integrating evolutionary and ecosystem science. Science 2010, 328:587-591.
25. Eglinton G., Hamilton R.J. Leaf epicuticular waxes. Science 1967, 156:1322-1335.
26. Eglinton T.I., Eglinton G., Dupont L., Sholkovitz E.R., Montluçon D., Reddy C.M. Composition, age, and provenance of organic matter in NW African dust over the Atlantic Ocean. Geochemistry Geophysics Geosystems 2002, 3:1050.
27. Eitel B., Kadereit A., Blümel W.-D., Hüser K., Lomax J., Hilgers A. Environmental changes at the eastern Namib Desert margin before and after the Last Glacial Maximum: new evidence from fluvial deposits in the upper Hoanib River catchment, northwestern Namibia. Palaeogeography, Palaeoclimatology, Palaeoecology 2006, 234:201-222.
28. Feakins S.J., Sessions A.L. Controls on the D/H ratios of plant leaf waxes in an arid ecosystem. Geochimica et Cosmochimica Acta 2010, 74:2128-2141.
29. Frierson D.M.W., Lu J., Chen G. Width of the Hadley cell in simple and comprehensive general circulation models. Geophysical Research Letters 2007, 34:L18804.
30. Galy V., Eglinton T., France-Lanord C., Sylva S. The provenance of vegetation and environmental signatures encoded in vascular plant biomarkers carried by the Ganges and Brahmaputra rivers. Earth and Planetary Science Letters 2011, 304:1-12.
31. Gao L., Tsai Y.-J., Huang Y. Assessing the rate and timing of leaf wax regeneration in Fraxinus americana using stable hydrogen isotope labeling. Rapid Communications in Mass Spectrometry 2012, 26:2241-2250.
32. Gasse F. Hydrological changes in the African tropics since the Last Glacial Maximum. Quaternary Science Reviews 2000, 19:189-211.
33. Gersonde R., Crosta X., Abelmann A., Armand L. Sea-surface temperature and sea ice distribution of the Southern Ocean at the EPILOG Last Glacial Maximum - a circum-Antarctic view based on siliceous microfossil records. Quaternary Science Reviews 2005, 24:869-896.
34. Gimeno L., Drumond A., Nieto R., Trigo R.M., Stohl A. On the origin of continental precipitation. Geophysical Research Letters 2010, 37:L13804.
35. Gingele F.X. Holocene climatic optimum in Southwest Africa-evidence from the marine clay mineral record. Palaeogeography, Palaeoclimatology, Palaeoecology 1996, 122:77-87.
36. Goudie A.S., Middleton N.J. Saharan dust storms: nature and consequences. Earth-science Reviews 2001, 56:179-204.
37. Gritti E.S., Cassignat C., Flores O., Bonnefille R., Chalié F., Guiot J., Jolly D. Simulated effects of a seasonal precipitation change on the vegetation in tropical Africa. Climate of the Past 2010, 6:169-178.
38. Grousset F.E., Parra M., Bory A., Martinez P., Bertrand P., Shimmield G., Ellam R.M. Saharan wind regimes traced by the Sr-Nd isotopic composition of subtropical Atlantic sediments: Last Glacial Maximum vs today. Quaternary Science Reviews 1998, 17:395-409.
39. Hayward D.F., Oguntoyinbo J.S. The Climatology of West Africa 1987, Hutchinson, Barnes & Noble, London, Totowa.
40. Heine K., Heine J.T. A paleohydrologic reinterpretation of the Homeb Silts, Kuiseb River, central Namib Desert (Namibia) and paleoclimatic implications. Catena 2002, 48:107-130.
41. Hessler I., Dupont L., Bonnefille R., Behling H., González C., Helmens K.F., Hooghiemstra H., Lebamba J., Ledru M.-P., Lézine A.-M., Maley J., Marret F., Vincens A. Millennial-scale changes in vegetation records from tropical Africa and South America during the last glacial. Quaternary Science Reviews 2010, 29:2882-2899.
42. Hou J., D'Andrea W.J., Huang Y. Can sedimentary leaf waxes record D/H ratios of continental precipitation? Field, model, and experimental assessments. Geochimica et Cosmochimica Acta 2008, 72:3503-3517.
43. Hou J., D'Andrea W.J., MacDonald D., Huang Y. Evidence for water use efficiency as an important factor in determining the δD values of tree leaf waxes. Organic Geochemistry 2007, 38:1251-1255.
44. IAEA/WMO Global Network of Isotopes in Precipitation 2006, The GNIP Database, Accessible at:. http://www.iaea.org/water.
45. Jansen J.H.F., Ufkes E., Schneider R.R. Late Quaternary movements of the Angola-Benguela-Front, SE Atlantic, and implications for advection in the equatorial ocean. The South Atlantic: Present and Past Circulation 1996, 553-575. Springer-Verlag, Berlin Heidelberg. G. Wefer, W.H. Berger, G. Sidler, D.J. Webb (Eds.).
46. Kageyama M., Mignot J., Swingedouw D., Marzin C., Alkama R., Marti O. Glacial climate sensitivity to different states of the Atlantic Meridional overturning circulation: results from the IPSL model. Climate of the Past 2009, 5:551-570.
47. Kahmen A., Dawson T.E., Vieth A., Sachse D. Leaf wax n-alkane δD values are determined early in the ontogeny of Populus trichocarpa leaves when grown under controlled environmental conditions. Plant, Cell & Environment 2011, 34:1639-1651.
48. Kahmen A., Hoffmann B., Schefuß E., Arndt S.K., Cernusak L.A., West J.B., Sachse D. Leaf water deuterium enrichment shapes leaf wax n-alkane δD values of angiosperm plants II: observational evidence and global implications. Geochimica et Cosmochimica Acta 2012, 10.1016/j.gca.2012.09.004.
49. Kahmen A., Schefuß E., Sachse D. Leaf water deuterium enrichment shapes leaf wax n-alkane δD values of angiosperm plants I: experimental evidence and mechanistic insights. Geochimica et Cosmochimica Acta 2012, 10.1016/j.gca.2012.09.003.
50. Kalnay E., Kanamitsu M., Kistler R., Collins W., Deaven D., Gandin L., Iredell M., Saha S., White G., Woollen J., Zhu Y., Leetmaa A., Reynolds R., Chelliah M., Ebisuzaki W., Higgins W., Janowiak J., Mo K.C., Ropelewski C., Wang J., Jenne R., Joseph D. The NCEP/NCAR 40-year reanalysis project. Bulletin of the American Meteorological Society 1996, 77:437-471.
51. Kang S., Held I., Frierson D., Zhao M. The response of the ITCZ to extratropical thermal forcings: idealized slab ocean experiments with a GCM. Journal of Climate 2008, 21:3521-3532.
52. Kim J.-H., Schneider R.R., Mulitza S., Muller P.J. Reconstruction of SE trade-wind intensity based on sea-surface temperature gradients in the Southeast Atlantic over the last 25 kyr. Geophysical Research Letters 2003, 30:2144.
53. Kim J.-H., Schneider R.R., Müller P.J., Wefer G. Interhemispheric comparison of deglacial sea-surface temperature patterns in Atlantic eastern boundary currents. Earth and Planetary Science Letters 2002, 194:383-393.
54. Kim S.-J., Crowley T., Erickson D., Govindasamy B., Duffy P., Lee B. High-resolution climate simulation of the last glacial maximum. Climate Dynamics 2008, 31:1-16.
55. Koch K., Ensikat H.-J. The hydrophobic coatings of plant surfaces: epicuticular wax crystals and their morphologies, crystallinity and molecular self-assembly. Micron 2008, 39:759-772.
56. Kolattukudy P.E. Chemistry and Biochemistry of Natural Waxes 1976, Elsevier Scientific Pub. Co., Amsterdam, New York.
57. Krull E., Sachse D., Mügler I., Thiele A., Gleixner G. Compound-specific δ13C and δ2H analyses of plant and soil organic matter: a preliminary assessment of the effects of vegetation change on ecosystem hydrology. Soil Biology and Biochemistry 2006, 38:3211-3221.
58. Lancaster J., Lancaster N., Seely M.K. The climate of the central Namib Desert. Madoqua 1984, 14:5-61.
59. Lancaster N. How dry was dry?-Late Pleistocene palaeoclimates in the Namib Desert. Quaternary Science Reviews 2002, 21:769-782.
60. LeGrande A.N., Schmidt G.A. Sources of Holocene variability of oxygen isotopes in paleoclimate archives. Climate of the Past 2009, 5:441-455.
61. Levin N.E., Zipser E.J., Cerling T.E. Isotopic composition of waters from Ethiopia and Kenya: insights into moisture sources for eastern Africa. Journal of Geophysical Research 2009, 114:D23306.
62. Lewis S.C., LeGrande A.N., Kelley M., Schmidt G.A. Water vapour source impacts on oxygen isotope variability in tropical precipitation during Heinrich events. Climate of the Past 2010, 6:325-343.
63. Lézine A.-M. Late quaternary vegetation and climate of the Sahel. Quaternary Research 1989, 32:317-334.
64. Lézine A.-M., Hély C., Grenier C., Braconnot P., Krinner G. Sahara and Sahel vulnerability to climate changes, lessons from Holocene hydrological data. Quaternary Science Reviews 2011, 30:3001-3012.
65. Louw G.N., Seeley M.K. Exploitation of fog water by a Perennial Namib Dune grass, Stipagrotis Sabulicola. South African Journal of Science 1980, 76:38-39.
66. Lüttge U. Ecophysiology of crassulacean acid metabolism (CAM). Annals of Botany 2004, 93:629-652.
67. MARGO Constraints on the magnitude and patterns of ocean cooling at the Last Glacial Maximum. Nature Geoscience 2009, 2:127-132.
68. Martins O. Geochemistry of the Niger river. Transport of Carbon and Minerals in Major World Rivers: Part 1 1982, 397-418. Mitteilungen aus dem Geologisch-Paläontologischen Institut der Universität Hamburg, Hamburg. E.T. Degens (Ed.).
69. McManus J.F., Francois R., Gherardi J.M., Keigwin L.D., Brown-Leger S. Collapse and rapid resumption of Atlantic meridional circulation linked to deglacial climate changes. Nature 2004, 428:834-837.
70. Mohr K.I., Famiglietti J.S., Zipser E.J. The contribution to tropical rainfall with respect to convective system type, size, and intensity estimated from the 85-GHz ice-scattering signature. Journal of Applied Meteorology 1999, 38:596-606.
71. Mohr K.I., Zipser E.J. Mesoscale convective systems defined by their 85-GHz ice scattering signature: size and intensity comparison over tropical oceans and continents. Monthly Weather Review 1996, 124:2417-2437.
72. Mulitza S., Prange M., Stuut J.B., Zabel M., von Dobeneck T., Itambi A.C., Nizou J., Schulz M., Wefer G. Sahel megadroughts triggered by glacial slowdowns of Atlantic meridional overturning. Paleoceanography 2008, 23:PA4206.
73. Nesbitt S.W., Cifelli R., Rutledge S.A. Storm morphology and rainfall characteristics of TRMM precipitation features. Monthly Weather Review 2006, 134:2702-2721.
74. Ngomanda A., Chepstow-Lusty A., Makaya M., Favier C., Schevin P., Maley J., Fontugne M., Oslisly R., Jolly D. Western equatorial African forest-savanna mosaics: a legacy of late Holocene climatic change?. Climate of the Past 2009, 5:341-367.
75. Nicholson S.E., Grist J.P. The seasonal evolution of the atmospheric circulation over West Africa and equatorial Africa. Journal of Climate 2003, 16:1013-1030.
76. Niedermeyer E.M., Prange M., Mulitza S., Mollenhauer G., Schefuß E., Schulz M. Extratropical forcing of Sahel aridity during Heinrich stadials. Geophysical Research Letters 2009, 36:L20707.
77. Niedermeyer E.M., Schefuß E., Sessions A.L., Mulitza S., Mollenhauer G., Schulz M., Wefer G. Orbital- and millennial-scale changes in the hydrologic cycle and vegetation in the western African Sahel: insights from individual plant wax δD and δ13C. Quaternary Science Reviews 2010, 29:2996-3005.
78. Olivier J., Stockton P.L. The influence of upwelling extent upon fog incidence at Lüderitz, southern Africa. International Journal of Climatology 1989, 9:69-75.
79. Pausata F.S.R., Battisti D.S., Nisancioglu K.H., Bitz C.M. Chinese stalagmite δ18O controlled by changes in the Indian monsoon during a simulated Heinrich event. Nature Geoscience 2011, 4:474-480.
80. Peters M., Tetzlaff G. The structure of West African Squall Lines and their environmental moisture budget. Meteorology and Atmospheric Physics 1988, 39:74-84.
81. Polissar P.J., Freeman K.H. Effects of aridity and vegetation on plant-wax δD in modern lake sediments. Geochimica et Cosmochimica Acta 2010, 74:5785-5797.
82. Prospero J.M., Ginoux P., Torres O., Nicholson S.E., Gill T.E. Environmental characterization of global sources of atmospheric soil dust identified with the Nimbus 7 Total Ozone Mapping Spectrometer (TOMS) absorbing aerosol product. Reviews of Geophysics 2002, 40:31.
83. Rao Z., Zhu Z., Jia G., Henderson A.C.G., Xue Q., Wang S. Compound specific δD values of long chain n-alkanes derived from terrestrial higher plants are indicative of the δD of meteoric waters: evidence from surface soils in eastern China. Organic Geochemistry 2009, 40:922-930.
84. Ratmeyer V., Fischer G., Wefer G. Lithogenic particle fluxes and grain size distributions in the deep ocean off northwest Africa: implications for seasonal changes of aeolian dust input and downward transport. Deep Sea Research Part I: Oceanographic Research Papers 1999, 46:1289-1337.
85. Risi C., Bony S., Vimeux F. Influence of convective processes on the isotopic composition (δ18O and δD) of precipitation and water vapor in the tropics: 2. Physical interpretation of the amount effect. Journal of Geophysical Research 2008, 113:D19306.
86. Risi C., Bony S., Vimeux F., Chong M., Descroix L. Evolution of the stable water isotopic composition of the rain sampled along Sahelian squall lines. Quarterly Journal of the Royal Meteorological Society 2010, 136:227-242.
87. Risi C., Bony S., Vimeux F., Descroix L., Ibrahim B., Lebreton E., Mamadou I., Sultan B. What controls the isotopic composition of the African monsoon precipitation? Insights from event-based precipitation collected during the 2006 AMMA field campaign. Geophysical Research Letters 2008, 35:L24808.
88. Risi C., Bony S., Vimeux F., Jouzel J. Water-stable isotopes in the LMDZ4 general circulation model: model evaluation for present-day and past climates and applications to climatic interpretations of tropical isotopic records. Journal of Geophysical Research 2010, 115:D12118.
89. Rommerskirchen F., Eglinton G., Dupont L., Güntner U., Wenzel C., Rullkötter J. A north to south transect of Holocene southeast Atlantic continental margin sediments: relationship between aerosol transport and compound-specific δ13C land plant biomarker and pollen records. Geochemistry Geophysics Geosystems 2003, 4:1101.
90. Rouault M., Florenchie P., Fauchereau N., Reason C.J.C. South East tropical Atlantic warm events and southern African rainfall. Geophysical Research Letters 2003, 30:8009.
91. Rozanski K., Araguás-Araguás L., Gonfiantini R. Relation between long-term trends of Oxygen-18 isotope composition of precipitation and climate. Science 1992, 258:981-985.
92. Rozanski K., Araguás-Araguás L., Gonfiantini R. Isotopic patterns in modern global precipitation. Climate Change in Continental Isotopic Records 1993, 1-36. American Geophysical Union, Washington, DC. S. Savin (Ed.).
93. Sachse D., Billault I., Bowen G.J., Chikaraishi Y., Dawson T.E., Feakins S.J., Freeman K.H., Magill C.R., McInerney F.A., van der Meer M.T.J., Polissar P., Robins R.J., Sachs J.P., Schmidt H.-L., Sessions A.L., White J.W.C., West J.B., Kahmen A. Molecular paleohydrology: interpreting the hydrogen-isotopic composition of lipid biomarkers from photosynthesizing organisms. Annual Review of Earth and Planetary Sciences 2012, 40:221-249.
94. Sachse D., Gleixner G., Wilkes H., Kahmen A. Leaf wax n-alkane δD values of field-grown barley reflect leaf water δD values at the time of leaf formation. Geochimica et Cosmochimica Acta 2010, 74:6741-6750.
95. Sachse D., Kahmen A., Gleixner G. Significant seasonal variation in the hydrogen isotopic composition of leaf-wax lipids for two deciduous tree ecosystems (Fagus sylvativa and Acer pseudoplatanus). Organic Geochemistry 2009, 40:732-742.
96. Sachse D., Radke J., Gleixner G. Hydrogen isotope ratios of recent lacustrine sedimentary n-alkanes record modern climate variability. Geochimica et Cosmochimica Acta 2004, 68:4877-4889.
97. Salati E., Dall'Olio A., Matsui E., Gat J.R. Recycling of water in the Amazon Basin: an isotopic study. Water Resources Research 1979, 15:1250-1258.
98. Sall S.M., Viltard A., Sauvageot H. Rainfall distribution over the Fouta Djallon - Guinea. Atmospheric Research 2007, 86:149-161.
99. Schachtschneider K., February E.C. The relationship between fog, floods, groundwater and tree growth along the lower Kuiseb River in the hyperarid Namib. Journal of Arid Environments 2010, 74:1632-1637.
100. Schefuß E., Kuhlmann H., Mollenhauer G., Prange M., Pätzold J. Forcing of wet phases in southeast Africa over the past 17,000 years. Nature 2011, 480:509-512.
101. Schefuß E., Schouten S., Jansen J.H.F., Sinninghe Damste J.S. African vegetation controlled by tropical sea surface temperatures in the mid-Pleistocene period. Nature 2003, 422:418-421.
102. Schefuß E., Schouten S., Schneider R.R. Climatic controls on central African hydrology during the past 20,000 years. Nature 2005, 437:1003-1006.
103. Schimmelmann A., Lewan M.D., Wintsch R.P. D/H isotope ratios of kerogen, bitumen, oil, and water in hydrous pyrolysis of source rocks containing kerogen types I, II, IIS, and III. Geochimica et Cosmochimica Acta 1999, 63:3751-3766.
104. Sessions A.L., Burgoyne T.W., Schimmelmann A., Hayes J.M. Fractionation of hydrogen isotopes in lipid biosynthesis. Organic Geochemistry 1999, 30:1193-1200.
105. Shanahan T.M., Overpeck J.T., Wheeler C.W., Beck J.W., Pigati J.S., Talbot M.R., Scholz C.A., Peck J., King J.W. Paleoclimatic variations in West Africa from a record of late Pleistocene and Holocene lake level stands of Lake Bosumtwi, Ghana. Palaeogeography, Palaeoclimatology, Palaeoecology 2006, 242:287-302.
106. Shepherd T., Griffiths D.W. The effects of stress on plant cuticular waxes. New Phytologist 2006, 171:469-499.
107. Shi N., Dupont L.M., Beug H.-J., Schneider R. Vegetation and climate changes during the last 21 000 years in S.W. Africa based on a marine pollen record. Vegetation History and Archaeobotany 1998, 7:127-140.
108. Shi N., Schneider R., Beug H.-J., Dupont L.M. Southeast trade wind variations during the last 135 kyr: evidence from pollen spectra in eastern South Atlantic sediments. Earth and Planetary Science Letters 2001, 187:311-321.
109. Simoneit B.R.T., Cox R.E., Standley L.J. Organic matter of the troposphere-IV. Lipids in Harmattan aerosols of Nigeria. Atmospheric Environment 1988, 22:983-1004.
110. Smith F.A., Freeman K.H. Influence of physiology and climate on δD of leaf wax n-alkanes from C3 and C4 grasses. Geochimica et Cosmochimica Acta 2006, 70:1172-1187.
111. Street-Perrott F.A., Marchand D.S., Roberts N., Harrison S.P. Global Lake-level Variations From 18,000 to 0 Years Ago: a Paleoclimatic Analysis 1989, U.S. Department of Energy Technical Report 46, p. 20545, Washington, DC.
112. Stuiver M., Reimer P.J., Reimer R.W. Calib 5.0, WWW Program and Documentation 2005.
113. Stuut J.-B., Zabel M., Ratmeyer V., Helmke P., Schefuß E., Lavik G., Schneider R. Provenance of present-day eolian dust collected off NW Africa. Journal of Geophysical Research 2005, 110:D04202.
114. Stuut J.-B.W., Prins M.A., Schneider R.R., Weltje G.J., Jansen J.H.F., Postma G. A 300-kyr record of aridity and wind strength in southwestern Africa: inferences from grain-size distributions of sediments on Walvis Ridge, SE Atlantic. Marine Geology 2002, 180:221-233.
115. Svendsen J.I., Alexanderson H., Astakhov V.I., Demidov I., Dowdeswell J.A., Funder S., Gataullin V., Henriksen M., Hjort C., Houmark-Nielsen M., Hubberten H.W., Ingólfsson Ó., Jakobsson M., Kjær K.H., Larsen E., Lokrantz H., Lunkka J.P., Lyså A., Mangerud J., Matiouchkov A., Murray A., Möller P., Niessen F., Nikolskaya O., Polyak L., Saarnisto M., Siegert C., Siegert M.J., Spielhagen R.F., Stein R. Late Quaternary ice sheet history of northern Eurasia. Quaternary Science Reviews 2004, 23:1229-1271.
116. Taupin J.-D., Coudrain-Ribstein A., Gallaire R., Zuppi G.M., Filly A. Rainfall characteristics (δ18O, δ2H, ΔT and ΔHr ) in western Africa: regional scale and influence of irrigated areas. Journal of Geophysical Research 2000, 105:11911-11924.
117. Tharammal T., Paul A., Merkel U., Noone D. Influence of LGM boundary conditions on the global water isotope distribution in an atmospheric general circulation model. Climate of the Past Discussions 2012, 8.
118. Thomas D.S.G., Burrough S.L., Parker A.G. Extreme events as drivers of early human behaviour in Africa? The case for variability, not catastrophic drought. Journal of Quaternary Science 2012, 27:7-12.
119. Tierney J.E., Lewis S.C., Cook B.I., LeGrande A.N., Schmidt G.A. Model, proxy and isotopic perspectives on the East African Humid Period. Earth and Planetary Science Letters 2011, 307:103-112.
120. Tierney J.E., Russell J.M., Huang Y., Sinninghe Damsté J.S., Hopmans E.C., Cohen A.S. Northern hemisphere controls on tropical southeast African climate during the past 60,000 years. Science 2008, 322:252-255.
121. Tierney J.E., Russell J.M., Sinninghe Damsté J.S., Huang Y., Verschuren D. Late Quaternary behavior of the East African monsoon and the importance of the Congo Air Boundary. Quaternary Science Reviews 2011, 30:798-807.
122. Tjallingii R., Claussen M., Stuut J.-B.W., Fohlmeister J., Jahn A., Bickert T., Lamy F., Rohl U. Coherent high- and low-latitude control of the northwest African hydrological balance. Nature Geoscience 2008, 1:670-675.
123. Trochain J. Ecologie vegetale de la zone intertropical non desertique 1980, Univ. P. Sabatier, Toulouse.
124. Vidal L., Labeyrie L., Cortijo E., Arnold M., Duplessy J.C., Michel E., Becqué S., van Weering T.C.E. Evidence for changes in the North Atlantic Deep Water linked to meltwater surges during the Heinrich events. Earth and Planetary Science Letters 1997, 146:13-27.
125. Vincens A., Buchet G., Servant M., ECOFIT Mbalang Collaborators Vegetation response to the African Humid Period termination in central Cameroon (7° N) - new pollen insight from Lake Mbalang. Climate of the Past 2010, 5:281-294.
126. Vogts A., Moossen H., Rommerskirchen F., Rullkötter J. Distribution patterns and stable carbon isotopic composition of alkanes and alkan-1-ols from plant waxes of African rain forest and savanna C3 species. Organic Geochemistry 2009, 40:1037-1054.
127. Waelbroeck C., Labeyrie L., Michel E., Duplessy J.C., McManus J.F., Lambeck K., Balbon E., Labracherie M. Sea-level and deep water temperature changes derived from benthic foraminifera isotopic records. Quaternary Science Reviews 2002, 21:295-305.
128. Wang Y.V., Larsen T., Leduc G., Andersen N., Blanz T., Schneider R.R. What does leaf wax δD from a mixed C3/C4 vegetation region tell us?. Geochimica et Cosmochimica Acta 2012, 10.1016/j.gca.2012.10.016.
129. Wefer G., Fischer G. Seasonal patterns of vertical particle flux in equatorial and coastal upwelling areas of the eastern Atlantic. Deep Sea Research Part I: Oceanographic Research Papers 1993, 40:1613-1645.
130. Weijers J.W.H., Schefuß E., Schouten S., Damste J.S.S. Coupled thermal and hydrological evolution of tropical Africa over the last deglaciation. Science 2007, 315:1701-1704.
131. Weldeab S., Frank M., Stichel T., Haley B., Sangen M. Spatio-temporal evolution of the West African monsoon during the last deglaciation. Geophysical Research Letters 2011, 38:L13703. 10.1029/2011GL047805.
132. Weldeab S., Lea D.W., Schneider R.R., Andersen N. 155,000 years of West African monsoon and ocean thermal evolution. Science 2007, 316:1303-1307.
133. Weldeab S., Schneider R.R., Kölling M., Wefer G. Holocene African droughts relate to eastern equatorial Atlantic cooling. Geology 2005, 33:981-984.
134. White F. The vegetation of Africa. Natural Resources Research 1983, 20:1.
135. Yang H., Huang Y. Preservation of lipid hydrogen isotope ratios in Miocene lacustrine sediments and plant fossils at Clarkia, northern Idaho, USA. Organic Geochemistry 2003, 34:413-423.
136. Zarriess M., Mackensen A. The tropical rainbelt and productivity changes off northwest Africa: a 31,000-year high-resolution record. Marine Micropaleontology 2010, 76:76-91.