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'''Siwan Davies''' is a |
'''Siwan Davies''' is a Welsh professor of Physical Geography in the department of science at Swansea University. |
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==Research== |
==Research== |
Revision as of 17:06, 17 January 2019
Professor Siwan Davies | |
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Born | Newport, Wales |
Language | Welsh, English |
Nationality | British |
Education | Royal Holloway, University of London |
Genre | Academic |
Subject | Geography |
Siwan Davies is a Welsh professor of Physical Geography in the department of science at Swansea University.
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 therefor incorporated into ice and terrestrial matter from irrupted 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 effected 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 2014.[5] A founding committee member of Swansea Science Grll and SwanStemWomen.
Areas of expertise[6]
- Tephrochronology
- Quaternary Science and palaeoenvironmental change
- Abrupt and rapid climatic changes
- Geochronology
Career history[6]
Year from | Year to | Position | Organisation |
2016 | 2016 | President of Geography section[7] | British Science Association |
2015 | Present | Elected Fellow[8] | 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 |
Prizes[6]
- 2011 Philip Leverhulme prize in Geography £70,000.
- 2013 Lyell Fund (Geological Society)
Grants and projects[6]
- BRITICE-CHRONO Constraining rate and style of marine influenced ice-sheet decay 2012 - 2017
(NERC Consortium) Principal Investigator: Clark, C (University of Sheffield)
- TRACE Tephra constraints on RApid Climatic Events 2011 - 2016
European Research Council (ERC) Independent Starting Grant (Project no. 259253). Principal Investigator. , ERC €1,471,116.80
- Holocene tephra constraints on the timing of millennial-scale variability in the subpolar North Atlantic. 2011 - 2016
Principal Investigator: Austin, WEN. Co-Investigators Davies, SM & Cage, AG., NERC Small grant (NE/H012273/1) £51,767
- Reconstructing 8000 years of Environmental and Landscape change in the Cairngorms. 2011 - 2016
Principal Investigator: Wilson, R. Co-Investigators: Edwards, KJ & Davies, SM., Leverhulme Trust (F/00 268/BG) £248,715
- Synchronising marine and ice-core records using tephrochronology (SMART) 2011 - 2016
Principal Investigator; Co-Investigators: Austin, WEN and Pearce, NJG., NERC Standard grant (NE/F020600/1
Publications[6]
Journal articles
- 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.[9] doi:10.1016/j.pgeola.2017.05.010
- 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
- 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.[10] doi:10.1002/jqs.2922
- 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[11] doi:10.1111/bor.12250
- 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
- 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.[12] doi:10.1016/j.quageo.2015.11.001
- 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.[13] doi:10.1002/jqs.2858
- 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.[14] doi:10.1002/jqs.2866
- 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.[15] doi:10.1177/0959683615618260
- 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, n/a-n/a.[16] doi:10.1002/2015GC006073
- DAVIES, S. (2015). Cryptotephras: the revolution in correlation and precision dating. Journal of Quaternary Science 30(2), 114-130.[17] doi:10.1002/jqs.2766
- 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.[18] doi:10.1016/j.quascirev.2014.07.017
- Ponomareva, V., Portnyagin, M. & Davies, S. (2015). Tephra without Borders: Far-Reaching Clues into Past Explosive Eruptions. Frontiers in Earth Science 3[19] doi:10.3389/feart.2015.00083
- Austin, William E. N., Abbott, Peter M., Davies, Siwan, Pearce, Nicholas J. G., Wastegard, Stefan, Austin, WEN, Abbott, PM, Davies, SM, Pearce, NJG, Wastegard, S (2014). Marine tephrochronology: an introduction to tracing time in the ocean. Geological Society, London, Special Publications 398(1), 1-5.[20] doi:10.1144/SP398.12
- Blockley, Simon P. E., Bourne, Anna J., Brauer, Achim, Davies, Siwan M., Hardiman, Mark, Harding, Poppy R., Lane, Christine S., MacLeod, Alison, Matthews, Ian P., Pyne-O'Donnell, Sean D. F., Rasmussen, Sune O., Wulf, Sabine, Zanchetta, Giovanni (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.[21] doi:10.1016/j.quascirev.2014.11.002
- 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.[22] doi:10.1016/j.quascirev.2014.10.032
- 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.[23] doi:10.1016/j.quascirev.2014.04.031
- 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.[24] doi:10.1016/j.quascirev.2014.03.024
- 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.[25] doi:10.1016/j.palaeo.2014.05.004
- Rasmussen, S. O., Abbott, P. M., Blunier, T., Bourne, A. J., Brook, E., Buchardt, S. L., Buizert, C., Chappellaz, J., Clausen, H. B., Cook, E., Dahl-Jensen, D., Davies, S. M., Guillevic, M., Kipfstuhl, S., Laepple, T., Seierstad, I. K., Severinghaus, J. P., Steffensen, J. P., Stowasser, C., Svensson, A., Vallelonga, P., Vinther, B. M., 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.[26] doi:10.5194/cp-9-2713-2013
- 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.[27] doi:10.1002/jqs.2663
- 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.[28] doi:10.1002/jqs.2641
- 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.[29] doi:10.1038/nature11789
- 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.[30] doi:10.1016/j.quascirev.2011.04.005
- Abbott, P. & Davies, S. (2012). Volcanism and the Greenland ice-cores: the tephra record. Earth-Science Reviews 115(3), 173-191.[31] doi:10.1016/j.earscirev.2012.09.001
- 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.[32] doi:10.1016/j.quascirev.2011.05.001
- 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.[33] doi:10.1016/j.quascirev.2011.09.008
- 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.[34] doi:10.1016/j.quaint.2011.07.033
- 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.[35] doi:10.1016/j.quaint.2011.08.016
- Lowe, D. Davies, S. Moriwaki, H. Pearce, N. & Suzuki, T. (2011). Enhancing tephrochronology and its application (INTREPID project): Hiroshi Machida commemorative volume. Quaternary International246(1-2)-5.[36] doi:10.1016/j.quaint.2011.08.012
- 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.[37] doi:10.1016/j.epsl.2010.03.004
- 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.[38] doi:10.1002/jqs.1421
- 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.[39] doi:10.1111/j.1502-3885.2009.00113.x
- 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.[40] doi:10.1002/jqs.1269
- 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
- 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.[41] doi:10.1002/jqs.1182
- 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 Past4(1), 47-57.[42] doi:10.5194/cp-4-47-2008
- 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.[43] doi:10.1111/j.1502-3885.2008.00028.x
- Davies, S. Elmquist, M. Bergman, J. Wohlfarth, B. & Hammarlund, D. (2007). Cryptotephra sedimentation processes within two lacustrine sequences from west central Sweden. The Holocene17(3)-330.[44] doi:10.1177/0959683607076443
- 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.[45] doi:10.1080/03009480601061020
- 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.[46] doi:10.1016/j.quascirev.2006.08.003
- 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.[47] doi:10.1002/jqs.990
- 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.[48] doi:10.1002/jqs.996
- 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.[49] doi:10.1080/03009480510012944
- 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.[50] doi:10.1002/jqs.814
- Davies, S. (2004). Were there two Borrobol Tephras during the early Lateglacial period: implications for tephrochronology?. Quaternary Science Reviews 23(5-6), 581-589.[51] doi:10.1016/j.quascirev.2003.11.006
- 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.[52] doi:10.1002/jqs.822
- 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
- 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.[53]
- 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.[54] doi:10.1098/rsta.2001.0964
- 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.[55] doi:10.1002/jqs.611
References
- ^ collegeofscience swansea (2013-02-04), Siwan Davies, retrieved 2017-09-28 – via YouTube
- ^ "Pembrokeshire scientist in pioneering ice project". Western Telegraph. Retrieved 2017-09-30.
- ^ a b Turner, Robin (2009-05-20). "Expert Siwan joins research into climate change". walesonline. Retrieved 2017-09-28.
- ^ S4C. "Professor comes face to face with climate change challenges | S4C Caban". www.s4c.cymru. Retrieved 2017-09-28.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ Swansea Uni (2014-07-01), Swansea University Soapbox Science - Professor Siwan Davies, Tephrochronology & past climate change, retrieved 2017-09-30
- ^ a b c d e "Professor Siwan Davies". www.swansea.ac.uk. Retrieved 2017-09-28.
- ^ "Geography Section". British Science Association. Retrieved 2017-09-30.
- ^ Wales, The Learned Society of. "Siwan Davies | The Learned Society of Wales". The Learned Society of Wales. Retrieved 2017-09-30.
- ^ https://cronfa.swan.ac.uk/Record/cronfa34930
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- ^ https://cronfa.swan.ac.uk/Record/cronfa7538
- ^ https://cronfa.swan.ac.uk/Record/cronfa15720
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: CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link) - ^ https://cronfa.swan.ac.uk/Record/cronfa2101
- ^ https://cronfa.swan.ac.uk/Record/cronfa15725