Siwan Davies

Siwan Davies is a Welsh professor of Physical Geography in the department of science at Swansea University.

Professor

Siwan Davies
BornNewport, Pembrokeshire
LanguageWelsh, English
NationalityWelsh
EducationRoyal Holloway, University of London
GenreAcademic
SubjectGeography

Research

Davies' research focus is to analyze past climate change and to reconstruct past climate changes. Together with a team of lecturing staff, technicians, PhD students and post doctoral researchers Davies is looking at rapid climatic changes. One of the challenges to understand why these changes occur is understanding where these events happen, are there triggers in the oceans or are there triggers in the atmosphere? By analyzing ash layers that have been spread across and therefore incorporated into ice and terrestrial matter from erupted volcanoes. By analyzing the microscopic ash particles in these matters Davies and her team can measure differences and similarities in changes that have occurred. These findings help to date and explain when these changes happened and why. By understanding what happened in the past will give them insight into what may happen in the future. Davies and her team are working closely with the ice and climate group at the University of Copenhagen as well as UK institutions such as Bangor and the University of Saint Andrews.[1]

Davies is currently working in collaboration with scientists from 14 different countries to excavate ice from the northwest of Greenland as part of the North Greenland Eemian Ice Drilling (Neem) project.[2] The ice will be retrieved in layers as far down as 8000 ft. The findings within this excavation will include evidence of organic materials as well as air bubbles that will be an indication of greenhouse gases that could have been found in the atmosphere over 100,000 years ago.[3] Davies research on minuscule ash particles within the layers of ice, will help create a timeline of volcanic eruptions, which will help compare and analyze climatic evidence recorded in the Greenland ice with that preserved in the deep sea.[3]

S4C filmed a series 'Her yr Hinsawdd' documenting Davies experience in meeting communities in Greenland and the Maldives affected by climate changes and in particular the ice caps melting.[4]

Siwan Davies is also an advocate for promoting women in STEM, speaking at events like soapbox science in Swansea, 2014.[5][6] She is a founding committee member of Swansea Science Grll and SwanStemWomen.

Career history[7]
Year from Year to Position Organisation
2016 2016 President of Geography section[8] British Science Association
2015 Present Elected Fellow[9] Learned Society for Wales
2012 Present Professor of Physical Geography Swansea University
2011 2012 Reader Swansea University
2008 2011 Senior Lecturer Swansea University
2004 2008 Lecturer Swansea University
2003 2004 Post-doctoral research assistant University of Copenhagen
2002 2003 Post-doctoral research assistant Stockholm University

Publications[7]

Journal articles
  1. Fogwill C, Turney C, Golledge N, Etheridge D, Rubino M, Thornton D, Baker A, Woodward J, Winter K, Van Ommen T, Moy A, Curran M, Davies S, Weber M, Bird M, Munksgaard N, Menviel L, Rootes C, Ellis B, et al. (2017). "Antarctic ice sheet discharge driven by atmosphere-ocean feedbacks at the Last Glacial Termination". Scientific Reports. 7: 39979. doi:10.1038/srep39979.
  2. Jones G, Davies S, Farr G, Bevan J (2017). "Identification of the Askja-S Tephra in a rare turlough record from Pant-y-Llyn, south Wales". Proceedings of the Geologists' Association. 128 (4): 523–530. doi:10.1016/j.pgeola.2017.05.010. Retrieved 25 April 2019 – via swan.ac.uk.
  3. Jones G, Lane C, Brauer A, Davies S, de Bruijn R, Engels S, Haliuc A, Hoek W, Merkt J, Sachse D, Turner F, Wagner-Cremer F (2017). "The Lateglacial to early Holocene tephrochronological record from Lake Hämelsee, Germany: a key site within the European tephra framework". Boreas. 47: 28–40. doi:10.1111/bor.12250. Retrieved 25 April 2019 – via swan.ac.uk.
  4. Smedley R, Scourse J, Small D, Hiemstra J, Duller G, Bateman M, Burke M, Chiverrell R, Clark C, Davies S, Fabel D, Gheorghiu D, Mccarroll D, Medialdea A, Xu S (2017). "New age constraints for the limit of the British-Irish Ice Sheet on the Isles of Scilly". Journal of Quaternary Science. 32 (1): 48–62. doi:10.1002/jqs.2922. Retrieved 25 April 2019 – via swan.ac.uk.
  5. Abbott P, Bourne A, Purcell C, Davies S, Scourse J, Pearce N (2016). "Last glacial period cryptotephra deposits in an eastern North Atlantic marine sequence: Exploring linkages to the Greenland ice-cores". Quaternary Geochronology. 31: 62–76. doi:10.1016/j.quageo.2015.11.001. Retrieved 25 April 2019 – via swan.ac.uk.
  6. Bourne A, Abbott P, Albert P, Cook E, Pearce N, Ponomareva V, Svensson A, Davies S (2016). "Underestimated risks of recurrent long-range ash dispersal from northern Pacific Arc volcanoes". Scientific Reports. 6: 29837. doi:10.1038/srep29837.
  7. Holmes N, Langdon P, Caseldine C, Wastegard S, Leng M, Croudace I, Davies S (2016). "Climatic variability during the last millennium in Western Iceland from lake sediment records". The Holocene. 26 (5): 756–771. doi:10.1177/0959683615618260. Retrieved 25 April 2019 – via swan.ac.uk.
  8. Macleod A, Davies S (2016). "Caution in cryptotephra correlation: resolving Lateglacial chemical controversies at Sluggan Bog, Northern Ireland". Journal of Quaternary Science. 31 (4): 406–415. doi:10.1002/jqs.2858. Retrieved 25 April 2019 – via swan.ac.uk.
  9. Zawalna-Geer A, Lindsay J, Davies S, Augustinus P, Davies S (2016). "Extracting a primary Holocene crytoptephra record from Pupuke maar sediments, Auckland, New Zealand". Journal of Quaternary Science. 31 (5): 442–457. doi:10.1002/jqs.2866. Retrieved 25 April 2019 – via swan.ac.uk.
  10. Bourne A, Cook E, Abbott P, Seierstad I, Steffensen J, Svensson A, Fischer H, Schüpbach S, Davies S (2015). "A tephra lattice for Greenland and a reconstruction of volcanic events spanning 25–45 ka b2k". Quaternary Science Reviews. 118: 122–141. doi:10.1016/j.quascirev.2014.07.017. Retrieved 25 April 2019 – via swan.ac.uk.
  11. Davies S (2015). "Cryptotephras: the revolution in correlation and precision dating". Journal of Quaternary Science. 30 (2): 114–130. doi:10.1002/jqs.2766. PMC 4959123. PMID 27512240. Retrieved 25 April 2019 – via swan.ac.uk.
  12. Griggs A, Davies S, Abbott P, Coleman M, Palmer A, Rasmussen T, Johnston R (2015). "Visualizing tephra deposits and sedimentary processes in the marine environment: The potential of X-ray microtomography". Geochemistry, Geophysics, Geosystems. 16: 4329–4343. doi:10.1002/2015GC006073. PMC 4951705. PMID 27478414. Retrieved 25 April 2019 – via swan.ac.uk.
  13. Ponomareva V, Portnyagin M, Davies S (2015). "Tephra without Borders: Far-Reaching Clues into Past Explosive Eruptions". Frontiers in Earth Science. 3. doi:10.3389/feart.2015.00083. Retrieved 25 April 2019 – via swan.ac.uk.
  14. Abbott P, Austin W, Davies S, Pearce N, Rasmussen T, Wastegård S, Brendryen J (2014). "Re-evaluation and extension of the Marine Isotope Stage 5 tephrostratigraphy of the Faroe Islands region: The cryptotephra record". Palaeogeography, Palaeoclimatology, Palaeoecology. 409: 153–168. doi:10.1016/j.palaeo.2014.05.004. Retrieved 25 April 2019 – via swan.ac.uk.
  15. Austin W, Abbott P, Davies S, Pearce N, Wastegard S (2014). "Marine tephrochronology: an introduction to tracing time in the ocean". Geological Society, London, Special Publications. 398 (1): 1–5. doi:10.1144/SP398.12. Retrieved 25 April 2019 – via swan.ac.uk.
  16. Blockley S, Bourne A, Brauer A, Davies S, Hardiman M, Harding P, Lane C, Macleod A, Matthews I, Pyne-O'Donnell S, Rasmussen S, Wulf S, Zanchetta G (2014). "Tephrochronology and the extended intimate (integration of ice-core, marine and terrestrial records) event stratigraphy 8–128 ka b2k". Quaternary Science Reviews. 106: 88–100. doi:10.1016/j.quascirev.2014.11.002. Retrieved 25 April 2019 – via swan.ac.uk.
  17. Davies S, Abbott P, Meara R, Pearce N, Austin W, Chapman M, Svensson A, Bigler M, Rasmussen T, Rasmussen S, Farmer E (2014). "A North Atlantic tephrostratigraphical framework for 130–60 ka b2k: new tephra discoveries, marine-based correlations, and future challenges". Quaternary Science Reviews. 106: 101–121. doi:10.1016/j.quascirev.2014.03.024. Retrieved 25 April 2019 – via swan.ac.uk.
  18. Griggs A, Davies S, Abbott P, Rasmussen T, Palmer A (2014). "Optimising the use of marine tephrochronology in the North Atlantic: a detailed investigation of the Faroe Marine Ash Zones II, III and IV". Quaternary Science Reviews. 106: 122–139. doi:10.1016/j.quascirev.2014.04.031. Retrieved 25 April 2019 – via swan.ac.uk.
  19. Seierstad I, Abbott P, Bigler M, Blunier T, Bourne A, Brook E, Buchardt S, Buizert C, Clausen H, Cook E, Dahl-Jensen D, Davies S, Guillevic M, Johnsen S, Pedersen D, Popp T, Rasmussen S, Severinghaus J, Svensson A, et al. (2014). "Consistently dated records from the Greenland GRIP, GISP2 and NGRIP ice cores for the past 104 ka reveal regional millennial-scale δ18O gradients with possible Heinrich event imprint". Quaternary Science Reviews. 106: 29–46. doi:10.1016/j.quascirev.2014.10.032. Retrieved 25 April 2019 – via swan.ac.uk.
  20. Abbott P, Austin W, Davies S, Pearce N, Hibbert F (2013). "Cryptotephrochronology of the Eemian and the last interglacial-glacial transition in the North East Atlantic". Journal of Quaternary Science. 28 (5): 501–514. doi:10.1002/jqs.2641. Retrieved 25 April 2019 – via swan.ac.uk.
  21. Bourne A, Davies S, Abbott P, Rasmussen S, Steffensen J, Svensson A (2013). "Revisiting the Faroe Marine Ash Zone III in two Greenland ice cores: implications for marine-ice correlations". Journal of Quaternary Science. 28 (7): 641–646. doi:10.1002/jqs.2663. Retrieved 25 April 2019 – via swan.ac.uk.
  22. Dahl-Jensen D, Albert M, Aldahan A, Azuma N, Balslev-Clausen D, Baumgartner M, Berggren A, Bigler M, Binder T, Blunier T, Bourgeois J, Brook E, Buchardt S, Buizert C, Capron E, Chappellaz J, Chung J, Clausen H, Cvijanovic I, Davies S, Ditlevsen P, Eicher O, Fischer H, Fisher D, Fleet L, Gfeller G, Gkinis V, Gogineni S, Goto-Azuma K (2013). "Eemian interglacial reconstructed from a Greenland folded ice core". Nature. 493 (7433): 489–494. doi:10.1038/nature11789. PMID 23344358. Retrieved 25 April 2019 – via swan.ac.uk.
  23. Rasmussen S, Abbott P, Blunier T, Bourne A, Brook E, Buchardt S, Buizert C, Chappellaz J, Clausen H, Cook E, Dahl-Jensen D, Davies S, Guillevic M, Kipfstuhl S, Laepple T, Seierstad I, Severinghaus J, Steffensen J, Stowasser C, Svensson A, Vallelonga P, Vinther B, Wilhelms F, Winstrup M (2013). "A first chronology for the North Greenland Eemian Ice Drilling (NEEM) ice core". Climate of the Past. 9 (6): 2713–2730. doi:10.5194/cp-9-2713-2013. Retrieved 25 April 2019 – via swan.ac.uk.
  24. Abbott P, Davies S (2012). "Volcanism and the Greenland ice-cores: the tephra record". Earth-Science Reviews. 115 (3): 173–191. doi:10.1016/j.earscirev.2012.09.001. Retrieved 25 April 2019 – via swan.ac.uk.
  25. Abbott P, Davies S, Steffensen J, Pearce N, Bigler M, Johnsen S, Seierstad I, Svensson A, Wastegård S (2012). "A detailed framework of Marine Isotope Stages 4 and 5 volcanic events recorded in two Greenland ice-cores". Quaternary Science Reviews. 36: 59–77. doi:10.1016/j.quascirev.2011.05.001. Retrieved 25 April 2019 – via swan.ac.uk.
  26. Davies S, Abbott P, Pearce N, Wastegård S, Blockley S (2012). "Integrating the INTIMATE records using tephrochronology: rising to the challenge". Quaternary Science Reviews. 36: 11–27. doi:10.1016/j.quascirev.2011.04.005. Retrieved 25 April 2019 – via swan.ac.uk.
  27. Walker M, Lowe J, Blockley S, Bryant C, Coombes P, Davies S, Hardiman M, Turney C, Watson J (2012). "Lateglacial and early Holocene palaeoenvironmental 'events' in Sluggan Bog, Northern Ireland: comparisons with the Greenland NGRIP GICC05 event stratigraphy". Quaternary Science Reviews. 36: 124–138. doi:10.1016/j.quascirev.2011.09.008. Retrieved 25 April 2019 – via swan.ac.uk.
  28. Abbott P, Davies S, Austin W, Pearce N, Hibbert F (2011). "Identification of cryptotephra horizons in a North East Atlantic marine record spanning marine isotope stages 4 and 5a (∼60,000–82,000 a b2k)". Quaternary International. 246 (1–2): 177–189. doi:10.1016/j.quaint.2011.07.033. Retrieved 25 April 2019 – via swan.ac.uk.
  29. Cage A, Davies S, Wastegård S, Austin W (2011). "Identification of the Icelandic Landnám tephra (AD 871 ± 2) in Scottish fjordic sediment". Quaternary International. 246 (1–2): 168–176. doi:10.1016/j.quaint.2011.08.016. Retrieved 25 April 2019 – via swan.ac.uk.
  30. Lowe D, Davies S, Moriwaki H, Pearce N, Suzuki T (2011). "Enhancing tephrochronology and its application (INTREPID project) : Hiroshi Machida commemorative volume". Quaternary International. 246 (1–2): 5. doi:10.1016/j.quaint.2011.08.012. Retrieved 25 April 2019 – via swan.ac.uk.
  31. Coulter S, Pilcher J, Hall V, Plunkett G, Davies S (2010). "Testing the reliability of the JEOL FEGSEM 6500F electron microprobe for quantitative major element analysis of glass shards from rhyolitic tephra". Boreas. 39 (1): 163–169. doi:10.1111/j.1502-3885.2009.00113.x. Retrieved 25 April 2019 – via swan.ac.uk.
  32. Davies S, Larsen G, Wastegård S, Turney C, Hall V, Coyle L, Thordarson T (2010). "Widespread dispersal of Icelandic tephra: how does the Eyjafjöll eruption of 2010 compare to past Icelandic events?". Journal of Quaternary Science. 25 (5): 605–611. doi:10.1002/jqs.1421. Retrieved 25 April 2019 – via swan.ac.uk.
  33. Davies S, Wastegård S, Abbott P, Barbante C, Bigler M, Johnsen S, Rasmussen T, Steffensen J, Svensson A (2010). "Tracing volcanic events in the NGRIP ice-core and synchronising North Atlantic marine records during the last glacial period". Earth and Planetary Science Letters. 294 (1–2): 69–79. doi:10.1016/j.epsl.2010.03.004. Retrieved 25 April 2019 – via swan.ac.uk.
  34. Wastegård S, Davies S (2009). "An overview of distal tephrochronology in northern Europe during the last 1000 years". Journal of Quaternary Science. 24 (5): 500–512. doi:10.1002/jqs.1269. Retrieved 25 April 2019 – via swan.ac.uk.
  35. Davies S, Wastegård S, Rasmussen T, Svensson A, Johnsen S, Steffensen J, Andersen K (2008). "Identification of the Fugloyarbanki tephra in the NGRIP ice core: a key tie‐point for marine and ice‐core sequences during the last glacial period". Journal of Quaternary Science. 23 (5): 409–414. doi:10.1002/jqs.1182. Retrieved 25 April 2019 – via swan.ac.uk.
  36. Svensson A, Andersen K, Bigler M, Clausen H, Dahl-Jensen D, Davies S, Johnsen S, Muscheler R, Parrenin F, Rasmussen S, Röthlisberger R, Seierstad I, Steffensen J, Vinther B (2008). "A 60 000 year Greenland stratigraphic ice core chronology". Climate of the Past. 4 (1): 47–57. doi:10.5194/cp-4-47-2008. Retrieved 25 April 2019 – via swan.ac.uk.
  37. Veres D, Davies S, Wohlfarth B, Preusser F, Wastegård S, Ampel L, Hormes A, Possnert G, Raynal J, Vernet G (2008). "Age, origin and significance of a new middle MIS 3 tephra horizon identified within a long-core sequence from Les Echets, France". Boreas. 37 (3): 434–443. doi:10.1111/j.1502-3885.2008.00028.x. Retrieved 25 April 2019 – via swan.ac.uk.
  38. Wohlfarth B, Veres D, Ampel L, Lacourse T, Blaauw M, Preusser F, Andrieu-Ponel V, Kéravis D, Lallier-Vergès E, Björck S, Davies S, Beaulieu J, Risberg J, Hormes A, Kasper H, Possnert G, Reille M, Thouveny N, Zander A (2008). "Rapid ecosystem response to abrupt climate changes during the last glacial period in western Europe, 40–16 ka". Geology. 36 (5): 407. doi:10.1130/g24600a.1.
  39. Davies S, Elmquist M, Bergman J, Wohlfarth B, Hammarlund D (2007). "Cryptotephra sedimentation processes within two lacustrine sequences from west central Sweden". The Holocene. 17 (3): 330. doi:10.1177/0959683607076443. Retrieved 25 April 2019 – via swan.ac.uk.
  40. Veres D, Wohlfarth B, Andrieu-Ponel V, Björck S, Beaulieu J, Digerfeldt G, Ponel P, Ampel L, Davies S, Gandouin E, Belmecheri S (2007). "The lithostratigraphy of the Les Echets basin, France: tentative correlation between cores". Boreas. 36 (3): 340. doi:10.1080/03009480601061020. Retrieved 25 April 2019 – via swan.ac.uk.
  41. Svensson A, Andersen K, Bigler M, Clausen H, Dahl-Jensen D, Davies S, Johnsen S, Muscheler R, Rasmussen S, Röthlisberger R (2006). "The Greenland Ice Core Chronology 2005, 15–42ka. Part 2: comparison to other records". Quaternary Science Reviews. 25 (23–24): 3258–3267. doi:10.1016/j.quascirev.2006.08.003. Retrieved 25 April 2019 – via swan.ac.uk.
  42. Turney C, Burg K, Wastegård S, Davies S, Whitehouse N, Pilcher J, Callaghan C (2006). "North European last glacial–interglacial transition (LGIT; 15–9 ka) tephrochronology: extended limits and new events". Journal of Quaternary Science. 21 (4): 335–345. doi:10.1002/jqs.990. Retrieved 25 April 2019 – via swan.ac.uk.
  43. Wohlfarth B, Blaauw M, Davies S, Andersson M, Wastegård S, Hormes A, Possnert G (2006). "Constraining the age of Lateglacial and early Holocene pollen zones and tephra horizons in southern Sweden with Bayesian probability methods". Journal of Quaternary Science. 21 (4): 321–334. doi:10.1002/jqs.996. Retrieved 25 April 2019 – via swan.ac.uk.
  44. Davies S, Hoek W, Bohncke S, Lowe J, O'donnell S, Turney C (2005). "Detection of Lateglacial distal tephra layers in the Netherlands". Boreas. 34 (2): 123–135. doi:10.1080/03009480510012944. Retrieved 25 April 2019 – via swan.ac.uk.
  45. Davies S (2004). "Were there two Borrobol Tephras during the early Lateglacial period: implications for tephrochronology?". Quaternary Science Reviews. 23 (5–6): 581–589. doi:10.1016/j.quascirev.2003.11.006. Retrieved 25 April 2019 – via swan.ac.uk.
  46. Lowe J, Walker M, Scott E, Harkness D, Bryant C, Davies S (2004). "A coherent high-precision radiocarbon chronology for the Late-glacial sequence at Sluggan Bog, Co. Antrim, Northern Ireland". Journal of Quaternary Science. 19 (2): 158. doi:10.1002/jqs.814. Retrieved 25 April 2019 – via swan.ac.uk.
  47. Turney C, Lowe J, Davies S, Hall V, Lowe D, Wastegård S, Hoek W, Alloway B (2004). "Tephrochronology of last termination sequences in Europe: a protocol for improved analytical precision and robust correlation procedures (a joint SCOTAV–INTIMATE proposal)". Journal of Quaternary Science. 19 (2): 120. doi:10.1002/jqs.822. Retrieved 25 April 2019 – via swan.ac.uk.
  48. Davies S, Wastegård S, Wohlfarth B (2003). "Extending the limits of the Borrobol Tephra to Scandinavia and detection of new early Holocene tephras". Quaternary Research. 59 (3): 345. doi:10.1016/s0033-5894(03)00035-8.
  49. Davies S, Branch N, Lowe J, Turney C (2002). "Towards a European tephrochronological framework for Termination 1 and the Early Holocene". Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 360 (1793): 767–802. doi:10.1098/rsta.2001.0964. PMID 12804303. Retrieved 25 April 2019 – via swan.ac.uk.
  50. Mackie E, Turney C, Dobbyn K, Lowe J, Hill P, Davies S (2002). "The use of magnetic separation techniques to detect basaltic microtephra in last glacial-interglacial transition (LGIT; 15-10 ka cal. BP) sediment sequences in Scotland". Scottish Journal of Geology. 38: 21–30. doi:10.1144/sjg38010021. Retrieved 28 September 2017 – via swan.ac.uk.
  51. Davies S, Turney C, Lowe J (2001). "Identification and significance of a visible, basalt-rich Vedde Ash layer in a Late-glacial sequence on the Isle of Skye, Inner Hebrides, Scotland". Journal of Quaternary Science. 16 (2): 99–104. doi:10.1002/jqs.611. Retrieved 25 April 2019 – via swan.ac.uk.

Prizes[7]
  • 2011 Philip Leverhulme prize in Geography £70,000.
  • 2013 Lyell Fund (Geological Society)

References
  1. collegeofscience swansea (2013-02-04), Siwan Davies, retrieved 2017-09-28 – via YouTube
  2. "Pembrokeshire scientist in pioneering ice project". Western Telegraph. Retrieved 2017-09-30.
  3. Turner, Robin (2009-05-20). "Expert Siwan joins research into climate change". walesonline. Retrieved 2017-09-28.
  4. S4C. "Professor comes face to face with climate change challenges | S4C Caban". www.s4c.cymru. Retrieved 2017-09-28.
  5. http://soapboxscience.org/soapboxscience-2014-swansea/
  6. Swansea Uni (2014-07-01), Swansea University Soapbox Science - Professor Siwan Davies, Tephrochronology & past climate change, retrieved 2017-09-30
  7. "Professor Siwan Davies". www.swansea.ac.uk. Retrieved 2017-09-28.
  8. "Geography Section". British Science Association. Retrieved 2017-09-30.
  9. Wales, The Learned Society of. "Siwan Davies | The Learned Society of Wales". The Learned Society of Wales. Retrieved 2017-09-30.

Further reading
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