Dr Mark Williamson
Associate Research Fellow
M.S.Williamson@exeter.ac.uk
2633
+44 (0) 1392 722633
Laver Building 710
Laver Building, University of Exeter, North Park Road, Exeter, EX4 4QE, UK
Overview
Mark is involved in the EU project HELIX (High-End cLimate Impacts and eXtremes) which aims to assess the impacts of climate change above 2oC global warming (www.helixclimate.eu). He is looking at tipping points in the climate system in particular.
Broad research specialisms:
- Earth system modelling,
- Quantum information and foundations.
Qualifications
PhD, Theoretical Physics, Leeds, 2009.
MSc, Optics and Photonics, Imperial College London, 2002.
BSc Oceanography with Physics, Southampton, 2001.
Career
2014 - present. Research Fellow, Department of Geography, University of Exeter.
2014 - 2009. Research Fellow, Centre for Quantum Technologies, National University of Singapore.
2012 - 2010. Research Fellow, Department of Physics, University of Oxford.
2010 - 2011. Schroedinger Junior Research Fellow. Erwin Schroedinger Institute for Mathematical Physics and Department of Physics, University of Vienna.
2005 - 2004. Research Assistant, Department of Environmental Sciences, UEA.
2004 - 2002. Research Assistant, National Oceanography Centre, University of Southampton.
Research
Research interests
- Tipping points in the climate system,
- Earth system modelling,
- quantum correlations,
- gauge theories,
- foundations of quantum mechanics.
Research projects
HELIX (High-End cLimate Impacts and eXtremes) www.helixclimate.eu.
Publications
Journal articles
Huntingford C, Cox PM, Ritchie PDL, Clarke JJ, Parry IM, Williamson MS (2024). Acceleration of daily land temperature extremes and correlations with surface energy fluxes. npj Climate and Atmospheric Science, 7(1). Abstract.
Cox PM, Williamson MS, Friedlingstein P, Jones CD, Raoult N, Rogelj J, Varney RM (2024). Emergent constraints on carbon budgets as a function of global warming. Nature Communications, 15(1). Abstract.
Sparey M, Cox P, Williamson MS (2023). Bioclimatic change as a function of global warming from CMIP6 climate projections. Biogeosciences, 20(2), 451-488. Abstract.
Abrams JF, Huntingford C, Williamson MS, Armstrong McKay DI, Boulton CA, Buxton JE, Sakschewski B, Loriani S, Zimm C, Winkelmann R, et al (2023). Committed Global Warming Risks Triggering Multiple Climate Tipping Points. Earth's Future, 11(11). Abstract.
Huntingford C, Cox PM, Williamson MS, Clarke JJ, Ritchie PDL (2023). Emergent constraints for the climate system as effective parameters of bulk differential equations. Earth System Dynamics, 14(2), 433-442. Abstract.
Nijsse FJMM, Cox PM, Williamson MS (2020). An emergent constraint on Transient Climate Response from simulated historical warming in CMIP6 models. Abstract.
Nijsse FJMM, Cox PM, Williamson MS (2020). An emergent constraint on transient warming from simulated historical warming in CMIP6 models. Abstract.
Huntingford C, Williamson MS, Nijsse FJMM (2020). CMIP6 climate models imply high committed warming. Climatic Change, 162(3), 1515-1520.
Williamson MS, Thackeray CW, Cox PM, Hall A, Huntingford C, Nijsse FJMM (2020). Emergent constraints on climate sensitivities. Abstract. Author URL.
Nijsse FJMM, Cox PM, Williamson MS (2020). Emergent constraints on transient climate response. (TCR) and equilibrium climate sensitivity (ECS) from historical warming in CMIP5 and CMIP6 models. Earth System Dynamics, 11(3), 737-750. Abstract.
williamson M (2020). Spatial early warnings of the transition to superrotation: Studying a bifurcation in the general circulation using an idealized GCM. Abstract.
Nijsse F, Cox PM, Huntingford C, Williamson M (2019). Decadal global temperature variability increases strongly with climate sensitivity. Nature Climate Change, 9, 598-601.
Eyring V, Cox PM, Flato GM, Gleckler PJ, Abramowitz G, Caldwell P, Collins WD, Gier BK, Hall AD, Hoffman FM, et al (2019). Taking climate model evaluation to the next level. Nature Climate Change, 9(2), 102-110. Abstract.
Bathiany S, Scheffer M, van Nes EH, Williamson MS, Lenton TM (2018). Abrupt Climate Change in an Oscillating World. Sci Rep, 8(1). Abstract. Author URL.
Cox PM, Williamson MS, Nijsse FJMM, Huntingford C (2018). Cox et al. reply. Nature, 563(7729), E10-E15. Author URL.
Cox PM, Huntingford C, Williamson MS (2018). Emergent constraint on equilibrium climate sensitivity from global temperature variability. Nature, 553(7688), 319-322. Abstract. Author URL.
Williamson MS, Cox PM, Nijsse FJMM (2018). Theoretical foundations of emergent constraints: relationships between. climate sensitivity and global temperature variability in conceptual models. Abstract. Author URL.
Williamson MS, collins M, drijfhout S, kahana R, mecking J, lenton TM (2017). Effect of AMOC collapse on ENSO in a high resolution general
circulation model. Climate Dynamics
Bathiany S, Dijkstra H, Crucifix M, Dakos V, Brovkin V, Williamson MS, Lenton TM, Scheffer M (2016). Beyond bifurcation: using complex models to understand and predict abrupt climate change. Dynamics and Statistics of the Climate System, dzw004-dzw004.
Williamson MS, Bathiany S, M Lenton T (2016). Early warning signals of tipping points in periodically forced systems. Earth System Dynamics, 7(2), 313-326. Abstract.
Bathiany S, Van Der Bolt B, Williamson MS, Lenton TM, Scheffer M, Van Nes EH, Notz D (2016). Statistical indicators of Arctic sea-ice stability-prospects and limitations. Cryosphere, 10(4), 1631-1645. Abstract.
Bathiany S, Bolt BVD, Williamson MS, Lenton TM, Scheffer M, Nes EV, Notz D (2016). Trends in sea-ice variability on the way to an ice-free Arctic. Abstract. Author URL.
Williamson MS, Lenton TM (2015). Detection of bifurcations in noisy coupled systems from multiple time series. Chaos, 25(3). Abstract.
Williamson MS, Bathiany S, Lenton TM (2015). Early warning signals of tipping points in periodically forced systems. Abstract.
Johansson M, Ericsson M, Singh K, Sjöqvist E, Williamson MS (2012). Topological phases and multiqubit entanglement. Physical Review a - Atomic, Molecular, and Optical Physics, 85(3). Abstract.
Johansson M, Ericsson M, Singh K, Sjöqvist E, Williamson MS (2011). Correlation-induced non-Abelian quantum holonomies. Journal of Physics A: Mathematical and Theoretical, 44(14). Abstract.
Williamson MS, Ericsson M, Johansson M, Sjöqvist E, Sudbery A, Vedral V, Wootters WK (2011). Geometric local invariants and pure three-qubit states. Physical Review a - Atomic, Molecular, and Optical Physics, 83(6). Abstract.
Williamson MS, Ericsson M, Johansson M, Sjöqvist E, Sudbery A, Vedral V (2011). Global asymmetry of many-qubit correlations: a lattice-gauge-theory approach. Physical Review a - Atomic, Molecular, and Optical Physics, 84(3). Abstract.
Modi K, Cable H, Williamson M, Vedral V (2011). Quantum Correlations in Mixed-State Metrology. Physical Review X, 1(2), 1-9. Abstract.
Modi K, Paterek T, Son W, Vedral V, Williamson M (2010). Unified View of Quantum and Classical Correlations. PHYSICAL REVIEW LETTERS, 104(8). Author URL.
Williamson MS, Heaney L, Son W (2010). Violation of multipartite Bell inequalities with classical subsystems via operationally local transformations. Physical Review a - Atomic, Molecular, and Optical Physics, 82(3). Abstract.
Williamson MS, Vedral V (2009). Effect of entanglement on geometric phase for multi-qubit states. Open Systems and Information Dynamics, 16(2-3), 305-323. Abstract.
Williamson MS, Vedral V (2007). Composite geometric phase for multipartite entangled states. Physical Review a - Atomic, Molecular, and Optical Physics, 76(3). Abstract.
Lenton TM, Marsh R, Price AR, Lunt DJ, Aksenov Y, Annan JD, Cooper-Chadwick T, Cox SJ, Edwards NR, Goswami S, et al (2007). Effects of atmospheric dynamics and ocean resolution on bi-stability of the thermohaline circulation examined using the Grid ENabled Integrated Earth system modelling (GENIE) framework. CLIMATE DYNAMICS, 29(6), 591-613. Author URL.
Williamson MS, Lenton TM, Shepherd JG, Edwards NR (2006). An efficient numerical terrestrial scheme (ENTS) for Earth system modelling. ECOLOGICAL MODELLING, 198(3-4), 362-374. Author URL.
Lunt DJ, Williamson MS, Valdes PJ, Lenton TM (2006). Comparing transient, accelerated, and equilibrium simulations of the last 30 000 years with the GENIE-1 model. Climate of the Past Discussions, 2(3), 267-283.
Lunt DJ, Williamson MS, Valdes PJ, Lenton TM, Marsh R (2006). Comparing transient, accelerated, and equilibrium simulations of the last 30 000 years with the GENIE-1 model. CLIMATE OF THE PAST, 2(2), 221-235. Author URL.
Lenton TM, Williamson MS, Edwards NR, Marsh R, Price AR, Ridgwell AJ, Shepherd JG, Cox SJ (2006). Millennial timescale carbon cycle and climate change in an efficient Earth system model. CLIMATE DYNAMICS, 26(7-8), 687-711. Author URL.
Marsh R, Smith MPLM, Rohling EJ, Lunt DJ, Lenton TM, Williamson MS, Yool A (2006). Modelling ocean circulation, climate and oxygen isotopes in the ocean over the last 120000 years. Climate of the Past Discussions, 2(5), 657-709.
Williamson M, Vlatkovedral (2003). Eavesdropping on practical quantum cryptography. Journal of Modern Optics, 50(13), 1989-2011. Abstract.
