Mediterranean outflow strengthening during northern hemisphere coolings: A salt source for the glacial Atlantic?

Antje H. L. Voelker; Lebreiro, S; Schoenfeld, J; Cacho, I.; Erlenkeuser, H.; F. Abrantes; González-Álvarez, Raquel; Oliveira, Paulo; Bartels-Jónsdóttir, Helga B.; Moreno, João; Wefer, Gerold; Cacho, Isabel; Garrick, K.; Kim, J. K.; Krissek, L.; Kuroda, J.; Li, B.; Llave, E.; Lofi, J.; Lourens, L.; Miller, M.; Nanayama, F.; Nishida, N.; Richter, C.; Roque, C.; Hugo Pereira; Sanchez Goni, M. F.; Sierro, F. J.; Singh, A. D.; Sloss, C.; Takashimizu, Y.; Tzanova, A.; Antje H. L. Voelker; Williams, T.; Xuan, C.

Antje Helga Luise Voelker

Position

Senior Researcher

Academic Degree

Doutoramento

Group

Oceanography and climate change

Based at

Lisboa, IPMA Campus

antje.voelker@ipma.pt

Keywords

paleoceanography; climate change; ocean currents; planktonic foraminifers; benthic foraminifers; stable isotopes (O, H, C); Mediterranean Outflow Water; ice-ocean interactions;

Organiza

Main Info

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Antje received her diploma in Marine Geology in 1993 from the University of Kiel (Germany) and her Doctorate of Natural Sciences (DSc/PhD) in 1999 from the same university. After her PhD she was contracted first as a postdoctoral fellow and then as an associated scientist by the Leibniz Laboratory for Radiocarbon Dating and Isotope Research in Kiel. In 2001 she moved to Portugal where she has worked since; first as a postdoctoral fellow and later as a researcher. In Portugal she has led 4 research projects (PORTO, INTER-TRACE, MOWCADYN, Iberia-Forams) and participated in numerous others. She has supervised 3 Master students and is currently supervising 2 PhD students (and is looking for more!). She is an active member of the international scientific community, collaborating with numerous scientists from around the world, regularly reviewing manuscripts for high-ranking journals and evaluating project proposals for funding agencies in Europe, Israel, USA, and New Zealand.

By training she is a paleoceanographer with expertise especially in stable isotope data (foraminiferal carbonate, modern sea water) and planktonic foraminifers (fauna, biostratigraphy), but has also worked on radiocarbon dating and tephrastratigraphy. She, furthermore, uses foraminiferal trace element records and grain-size data for paleo-reconstructions. Currently, her research is focussed on understanding centennial-to-orbital scale climate variations (Greenland stadial/interstadial cycles; abrupt climate change during glacials/ climate transitions; interglacial variability) and their impact on the thermohaline circulation (surface, intermediate, deep water) and climate in general.

She is working on time intervals ranging from the recent past to the middle to early Pleistocene (300-1800 ka) and the Pliocene (3.5 – 4.6 Ma) and in geographic/hydrographic regions spanning from the polar Nordic Seas and Labrador Sea down to the subtropical gyre.

Within the scope of the GEOTRACES program, she is analysing the stable isotope (H, O, C) values of seawater and relates them to the modern hydrographic conditions.

News

Paleoceanography research discuss at the 42nd CIESM Congress

Our IPMA collaborators participated in the event that took place at the Centro de Congressos do Estoril in Cascais, from 7 to 11 October.

Publications

Year of Publication
2017	Rebotim A, Voelker AHL, Jonkers L, et al. Factors controlling the depth habitat of planktonic foraminifera in the subtropical eastern North Atlantic. Biogeosciences. 2017;14(4):827 - 859. doi:10.5194/bg-14-827-2017 Read more about Factors controlling the depth habitat of planktonic foraminifera in the subtropical eastern North Atlantic Google Scholar DOI
2017	Oliveira D, Goñi MFernanda S, Naughton F, et al. Unexpected weak seasonal climate in the western Mediterranean region during MIS 31, a high-insolation forced interglacial. Quaternary Science Reviews. 2017;161:1 - 17. doi:10.1016/j.quascirev.2017.02.013 Read more about Unexpected weak seasonal climate in the western Mediterranean region during MIS 31, a high-insolation forced interglacial Google Scholar DOI
2017	Ventura C, Abrantes F, Loureiro I, Voelker AHL. Data report: diatom and silicoflagellate records of marine isotope Stages 25-27 at IODP Site U1387, Faro Drift. In: Stow DAV, Hernández-Molina FJ, Zarikian CAAlvarez, , eds. Proceedings Of The Integrated Ocean Drilling Program, Volume 339. Proceedings of the Integrated Ocean Drilling Program, Volume 339. Tokyo: Integrated Ocean Drilling Program Management International, Inc.; 2017. doi:10.2204/iodp.proc.339.202.2017 Read more about Data report: diatom and silicoflagellate records of marine isotope Stages 25-27 at IODP Site U1387, Faro Drift Google Scholar DOI
2017	Andrews JT, Dunhill G, Vogt C, Voelker AHL. Denmark Strait during the Late Glacial Maximum and Marine Isotope Stage 3: Sediment sources and transport processes. Marine Geology. 2017;390:181 - 198. doi:10.1016/j.margeo.2017.07.003 Read more about Denmark Strait during the Late Glacial Maximum and Marine Isotope Stage 3: Sediment sources and transport processes Google Scholar DOI
2017	García-Gallardo Á, Grunert P, Voelker AHL, Mendes I, Piller WE. Re-evaluation of the “elevated epifauna” as indicator of Mediterranean Outflow Water in the Gulf of Cadiz using stable isotopes (δ 13 C, δ 18 O). Global and Planetary Change. 2017;155:78 - 97. doi:10.1016/j.gloplacha.2017.06.005 Read more about Re-evaluation of the “elevated epifauna” as indicator of Mediterranean Outflow Water in the Gulf of Cadiz using stable isotopes (δ 13 C, δ 18 O) Google Scholar DOI
2017	Rodrigues T, Alonso-García M, Hodell DA, et al. A 1-Ma record of sea surface temperature and extreme cooling events in the North Atlantic: A perspective from the Iberian Margin. Quaternary Science Reviews. 2017;172:118 - 130. doi:10.1016/j.quascirev.2017.07.004 Read more about A 1-Ma record of sea surface temperature and extreme cooling events in the North Atlantic: A perspective from the Iberian Margin Google Scholar DOI
2016	Lofi J, Voelker AHL, Ducassou E, et al. Quaternary chronostratigraphic framework and sedimentary processes for the Gulf of Cadiz and Portuguese Contourite Depositional Systems derived from Natural Gamma Ray records. Marine Geology. 2016;377:40 - 57. doi:10.1016/j.margeo.2015.12.005 Read more about Quaternary chronostratigraphic framework and sedimentary processes for the Gulf of Cadiz and Portuguese Contourite Depositional Systems derived from Natural Gamma Ray records Google Scholar DOI
2016	Naughton F, Sanchez-Goñi MF, Rodrigues T, et al. Climate variability across the last deglaciation in NW Iberia and its margin. Quaternary International. 2016;414:9 - 22. doi:10.1016/j.quaint.2015.08.073 Read more about Climate variability across the last deglaciation in NW Iberia and its margin Google Scholar DOI
2016	Penaud A, Eynaud F, Voelker AHL, Turon J-L. Palaeohydrological changes over the last 50 ky in the central Gulf of Cadiz: complex forcing mechanisms mixing multi-scale processes. Biogeosciences. 2016;13(18):5357 - 5377. doi:10.5194/bg-13-5357-201610.5194/bg-13-5357-2016-supplement Read more about Palaeohydrological changes over the last 50 ky in the central Gulf of Cadiz: complex forcing mechanisms mixing multi-scale processes Google Scholar DOI
2015	Voelker AHL, Salgueiro E, Rodrigues T, et al. Mediterranean Outflow and surface water variability off southern Portugal during the early Pleistocene: A snapshot at Marine Isotope Stages 29 to 34 (1020–1135ka). Global and Planetary Change. 2015;133:223 - 237. doi:10.1016/j.gloplacha.2015.08.015 Read more about Mediterranean Outflow and surface water variability off southern Portugal during the early Pleistocene: A snapshot at Marine Isotope Stages 29 to 34 (1020–1135ka) Google Scholar DOI
2015	Naughton F, Keigwin L, Peteet D, et al. A 12,000-yr pollen record off Cape Hatteras — Pollen sources and mechanisms of pollen dispersion. Marine Geology. 2015;367:118 - 129. doi:10.1016/j.margeo.2015.06.003 Read more about A 12,000-yr pollen record off Cape Hatteras — Pollen sources and mechanisms of pollen dispersion Google Scholar DOI
2015	Voelker AHL, Haflidason H. Refining the Icelandic tephrachronology of the last glacial period – The deep-sea core PS2644 record from the southern Greenland Sea. Global and Planetary Change. 2015;131:35 - 62. doi:10.1016/j.gloplacha.2015.05.001 Read more about Refining the Icelandic tephrachronology of the last glacial period – The deep-sea core PS2644 record from the southern Greenland Sea Google Scholar DOI
2015	Voelker AHL, Colman A, Olack G, Waniek JJ, Hodell D. Oxygen and hydrogen isotope signatures of Northeast Atlantic water masses. Deep Sea Research Part II: Topical Studies in Oceanography. 2015;116:89 - 106. doi:10.1016/j.dsr2.2014.11.006 Read more about Oxygen and hydrogen isotope signatures of Northeast Atlantic water masses Google Scholar DOI
2015	Bartels-Jónsdóttir HB, Voelker AHL, Abrantes FG, Salgueiro E, Rodrigues T, Knudsen KLuise. High-frequency surface water changes in the Tagus prodelta off Lisbon, eastern North Atlantic, during the last two millennia. Marine Micropaleontology. 2015;117:13 - 24. doi:10.1016/j.marmicro.2015.03.001 Read more about High-frequency surface water changes in the Tagus prodelta off Lisbon, eastern North Atlantic, during the last two millennia Google Scholar DOI
2015	Bahr A, Kaboth S, Jiménez-Espejo FJ, et al. Persistent monsoonal forcing of Mediterranean Outflow Water dynamics during the late Pleistocene. Geology. 2015;43(11):951 - 954. doi:10.1130/G37013.1 Read more about Persistent monsoonal forcing of Mediterranean Outflow Water dynamics during the late Pleistocene Google Scholar DOI
2014	Bahr A, Jimenez-Espejo FJ, Kolasinac N, et al. Deciphering bottom current velocity and paleoclimate signals from contourite deposits in the Gulf of Cádiz during the last 140 kyr: An inorganic geochemical approach. Geochemistry, Geophysics, Geosystems. 2014;15(8):3145 - 3160. doi:10.1002/2014GC005356 Read more about Deciphering bottom current velocity and paleoclimate signals from contourite deposits in the Gulf of Cádiz during the last 140 kyr: An inorganic geochemical approach Google Scholar DOI
2014	Marino M, Maiorano P, Tarantino F, et al. Coccolithophores as proxy of seawater changes at orbital-to-millennial scale during middle Pleistocene Marine Isotope Stages 14-9 in North Atlantic core MD01-2446. Paleoceanography. 2014;29(6):518 - 532. doi:10.1002/2013PA002574 Read more about Coccolithophores as proxy of seawater changes at orbital-to-millennial scale during middle Pleistocene Marine Isotope Stages 14-9 in North Atlantic core MD01-2446 Google Scholar DOI
2014	Salgueiro E, Naughton F, Voelker AHL, et al. Past circulation along the western Iberian margin: a time slice vision from the Last Glacial to the Holocene. Quaternary Science Reviews. 2014;106:316 - 329. doi:10.1016/j.quascirev.2014.09.001 Read more about Past circulation along the western Iberian margin: a time slice vision from the Last Glacial to the Holocene Google Scholar DOI
2014	Hernandez-Molina FJ, Stow DAV, Alvarez-Zarikian CA, et al. Onset of Mediterranean outflow into the North Atlantic. Science. 2014;344(6189):1244 - 1250. doi:10.1126/science.1251306 Read more about Onset of Mediterranean outflow into the North Atlantic Google Scholar DOI
2013	Palumbo E, Flores JA, Perugia C, et al. Abrupt variability of the last 24 ka BP recorded by coccolithophore assemblages off the Iberian Margin (core MD03-2699). Journal of Quaternary Science. 2013;28(3):320 - 328. doi:10.1002/jqs.2623 Read more about Abrupt variability of the last 24 ka BP recorded by coccolithophore assemblages off the Iberian Margin (core MD03-2699) Google Scholar DOI
2013	Palumbo E, Flores JA, Perugia C, Petrillo Z, Voelker AHL, Amore FO. Millennial scale coccolithophore paleoproductivity and surface water changes between 445 and 360ka (Marine Isotope Stages 12/11) in the Northeast Atlantic. Palaeogeography, Palaeoclimatology, Palaeoecology. 2013;383-384:27 - 41. doi:10.1016/j.palaeo.2013.04.024 Read more about Millennial scale coccolithophore paleoproductivity and surface water changes between 445 and 360ka (Marine Isotope Stages 12/11) in the Northeast Atlantic Google Scholar DOI
2012	Abrantes F, Voelker AHL, Sierro FJavier, et al. The Climate of the Mediterranean RegionPaleoclimate Variability in the Mediterranean Region. In: Elsevier; 2012:1 - 86. doi:10.1016/B978-0-12-416042-2.00001-X Read more about The Climate of the Mediterranean RegionPaleoclimate Variability in the Mediterranean Region Google Scholar DOI
2012	Amore FO, Flores JA, Voelker AHL, Lebreiro SM, Palumbo E, Sierro FJ. A Middle Pleistocene Northeast Atlantic coccolithophore record: Paleoclimatology and paleoproductivity aspects. Marine Micropaleontology. 2012;90-91:44 - 59. doi:10.1016/j.marmicro.2012.03.006 Read more about A Middle Pleistocene Northeast Atlantic coccolithophore record: Paleoclimatology and paleoproductivity aspects Google Scholar DOI
2012	Abrantes F, Voelker AHL, Sierro FJavier, et al. The Climate Of The Mediterranean Regionpaleoclimate Variability In The Mediterranean Region. Elsevier; 2012:1 - 86. doi:10.1016/B978-0-12-416042-2.00001-X Read more about The Climate of the Mediterranean RegionPaleoclimate Variability in the Mediterranean Region Google Scholar DOI
2011	Voelker AHL, de Abreu L. Geophysical Monograph SeriesAbrupt Climate Change: Mechanisms, Patterns, and Impacts - A Review of Abrupt Climate Change Events in the Northeastern Atlantic Ocean (Iberian Margin): Latitudinal, Longitudinal, and Vertical Gradients. In: Rashid H, Polyak L, Mosley-Thompson E, eds. Vol. 193. Washington, D. C.: American Geophysical Union; 2011:15 - 37. doi:10.1029/GM19310.1029/2010GM001021 Read more about Geophysical Monograph SeriesAbrupt Climate Change: Mechanisms, Patterns, and Impacts - A Review of Abrupt Climate Change Events in the Northeastern Atlantic Ocean (Iberian Margin): Latitudinal, Longitudinal, and Vertical Gradients Google Scholar DOI
2011	Rodrigues T, Voelker AHL, Grimalt JO, Abrantes F, Naughton F. Iberian Margin sea surface temperature during MIS 15 to 9 (580–300 ka): Glacial suborbital variability versus interglacial stability. Paleoceanography. 2011;26(1). doi:10.1029/2010PA001927 Read more about Iberian Margin sea surface temperature during MIS 15 to 9 (580–300 ka): Glacial suborbital variability versus interglacial stability Google Scholar DOI
2011	Penaud A, Eynaud F, Voelker AHL, et al. Assessment of sea surface temperature changes in the Gulf of Cadiz during the last 30 ka: implications for glacial changes in the regional hydrography. Biogeosciences. 2011;8(8):2295 - 2316. doi:10.5194/bg-8-2295-201110.5194/bg-8-2295-2011-supplement Read more about Assessment of sea surface temperature changes in the Gulf of Cadiz during the last 30 ka: implications for glacial changes in the regional hydrography Google Scholar DOI
2011	Patton GM, Martin PA, Voelker AHL, Salgueiro E. Multiproxy comparison of oceanographic temperature during Heinrich Events in the eastern subtropical Atlantic. Earth and Planetary Science Letters. 2011;310(1-2):45 - 58. doi:10.1016/j.epsl.2011.07.028 Read more about Multiproxy comparison of oceanographic temperature during Heinrich Events in the eastern subtropical Atlantic Google Scholar DOI
2011	Hernández-Molina FJavier, Stow DAV, Llave E, et al. Deep-water Circulation: Processes & Products (16–18 June 2010, Baiona): introduction and future challenges. Geo-Marine Letters. 2011;31(5-6):285 - 300. doi:10.1007/s00367-011-0261-z Read more about Deep-water Circulation: Processes & Products (16–18 June 2010, Baiona): introduction and future challenges Google Scholar DOI
2011	Brandefelt J, Kjellström E, Näslund J-O, Strandberg G, Voelker AHL, Wohlfarth B. A coupled climate model simulation of Marine Isotope Stage 3 stadial climate. Climate of the Past. 2011;7(2):649 - 670. doi:10.5194/cp-7-649-2011 Read more about A coupled climate model simulation of Marine Isotope Stage 3 stadial climate Google Scholar DOI
2011	Abrantes F, Rodrigues T, Montanari B, et al. Climate of the last millennium at the southern pole of the North Atlantic Oscillation: an inner-shelf sediment record of flooding and upwelling. Climate Research. 2011;48(2):261 - 280. doi:10.3354/cr01010 Read more about Climate of the last millennium at the southern pole of the North Atlantic Oscillation: an inner-shelf sediment record of flooding and upwelling Google Scholar DOI
2010	Voelker AHL, Rodrigues T, Billups K, et al. Variations in mid-latitude North Atlantic surface water properties during the mid-Brunhes (MIS 9–14) and their implications for the thermohaline circulation. Climate of the Past. 2010;6(4):531 - 552. doi:10.5194/cp-6-531-2010 Read more about Variations in mid-latitude North Atlantic surface water properties during the mid-Brunhes (MIS 9–14) and their implications for the thermohaline circulation Google Scholar DOI
2010	Salgueiro E, Voelker AHL, de Abreu L, Abrantes F, Meggers H, Wefer G. Temperature and productivity changes off the western Iberian margin during the last 150 ky. Quaternary Science Reviews. 2010;29(5-6):680 - 695. doi:10.1016/j.quascirev.2009.11.013 Read more about Temperature and productivity changes off the western Iberian margin during the last 150 ky Google Scholar DOI
2010	Rogerson M, Colmenero-Hidalgo E, Levine RC, et al. Enhanced Mediterranean-Atlantic exchange during Atlantic freshening phases. Geochemistry, Geophysics, Geosystems. 2010;11(8):n/a - n/a. doi:10.1029/2009GC002931 Read more about Enhanced Mediterranean-Atlantic exchange during Atlantic freshening phases Google Scholar DOI
2010	KJELLSTRÖM ERIK, BRANDEFELT JENNY, NÄSLUND JENS-OVE, et al. Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial. Boreas. 2010;39(2):436 - 456. doi:10.1111/bor.2010.39.issue-210.1111/j.1502-3885.2010.00143.x Read more about Simulated climate conditions in Europe during the Marine Isotope Stage 3 stadial Google Scholar DOI
2009	Voelker AHL, de Abreu L, Schönfeld J, Erlenkeuser H, Abrantes F. Hydrographic conditions along the western Iberian margin during marine isotope stage 2. Geochemistry, Geophysics, Geosystems. 2009;10(12):n/a - n/a. doi:10.1029/2009GC002605 Read more about Hydrographic conditions along the western Iberian margin during marine isotope stage 2 Google Scholar DOI
2009	Bartels-Jonsdottir HB, Voelker AHL, Knudsen KL, Abrantes F. Twentieth-century warming and hydrographical changes in the Tagus Prodelta, eastern North Atlantic. The Holocene. 2009;19(3):369 - 380. doi:10.1177/0959683608101388 Read more about Twentieth-century warming and hydrographical changes in the Tagus Prodelta, eastern North Atlantic Google Scholar DOI
2009	Stein R, Hefter J, Grützner J, Voelker AHL, B. Naafs DA. Variability of surface water characteristics and Heinrich-like events in the Pleistocene midlatitude North Atlantic Ocean: Biomarker and XRD records from IODP Site U1313 (MIS 16-9). Paleoceanography. 2009;24(2):n/a - n/a. doi:10.1029/2008PA001639 Read more about Variability of surface water characteristics and Heinrich-like events in the Pleistocene midlatitude North Atlantic Ocean: Biomarker and XRD records from IODP Site U1313 (MIS 16-9) Google Scholar DOI
2009	Lebreiro SM, Voelker AHL, Vizcaino A, et al. Sediment instability on the Portuguese continental margin under abrupt glacial climate changes (last 60kyr). Quaternary Science Reviews. 2009;28(27-28):3211 - 3223. doi:10.1016/j.quascirev.2009.08.007 Read more about Sediment instability on the Portuguese continental margin under abrupt glacial climate changes (last 60kyr) Google Scholar DOI
2009	Eynaud F, de Abreu L, Voelker AHL, et al. Position of the Polar Front along the western Iberian margin during key cold episodes of the last 45 ka. Geochemistry, Geophysics, Geosystems. 2009;10(7):n/a - n/a. doi:10.1029/2009GC002398 Read more about Position of the Polar Front along the western Iberian margin during key cold episodes of the last 45 ka Google Scholar DOI
2008	Salgueiro E, Voelker AHL, Abrantes F, et al. Planktonic foraminifera from modern sediments reflect upwelling patterns off Iberia: Insights from a regional transfer function. Marine Micropaleontology. 2008;66(3-4):135 - 164. doi:10.1016/j.marmicro.2007.09.003 Read more about Planktonic foraminifera from modern sediments reflect upwelling patterns off Iberia: Insights from a regional transfer function Google Scholar DOI
2008	Abrantes F, Alt-Epping U, Lebreiro S, Voelker AHL, Schneider R. Sedimentological record of tsunamis on shallow-shelf areas: The case of the 1969 AD and 1755 AD tsunamis on the Portuguese Shelf off Lisbon. Marine Geology. 2008;249(3-4):283 - 293. doi:10.1016/j.margeo.2007.12.004 Read more about Sedimentological record of tsunamis on shallow-shelf areas: The case of the 1969 AD and 1755 AD tsunamis on the Portuguese Shelf off Lisbon Google Scholar DOI
2006	Voelker AHL, Lebreiro S, Schoenfeld J, Cacho I, Erlenkeuser H, Abrantes F. Mediterranean outflow strengthening during northern hemisphere coolings: A salt source for the glacial Atlantic?. Earth and Planetary Science Letters. 2006;245(1-2):39 - 55. doi:10.1016/j.epsl.2006.03.014 Read more about Mediterranean outflow strengthening during northern hemisphere coolings: A salt source for the glacial Atlantic? Google Scholar DOI

Supervising

Catarina Cavaleiro

Andreia Rebotim

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