Dr Simon Williams

Marine Physics and Ocean Climate
+44 (0)151 795 4814



Horsburgh, K.; Williams, S.D.P.. 2016 Changes to estimates of extreme sea levels for Wales when data from the 2013/2014 winter are included. Report for Natural Resources Wales. Southampton, National Oceanography Centre, 14pp. (National Oceanography Centre Research and Consultancy Report, 54)


Morales Maqueda, M.A.; Penna, N.T.; Williams, S.D.P.; Foden, P.R.; Martin, I.; Pugh, J.. 2016 Water surface height determination with a GPS wave glider: a demonstration in Loch Ness, Scotland. Journal of Atmospheric and Oceanic Technology, 33 (6). 1159-1168.10.1175/JTECH-D-15-0162.1
Montillet, J.-P.; Williams, S.D.P.; Koulali, A.; McClusky, S.C.. 2015 Estimation of offsets in GPS time-series and application to the detection of earthquake deformation in the far-field. Geophysical Journal International, 200 (2). 1205-1219.10.1093/gji/ggu473
Featherstone, W.E.; Penna, N.T.; Filmer, M.S.; Williams, S.D.P.. 2015 Nonlinear subsidence at Fremantle, a long-recording tide gauge in the Southern Hemisphere. Journal of Geophysical Research: Oceans, 120 (10). 7004-7014.10.1002/2015JC011295
Tamisiea, Mark E.; Hughes, Chris W.; Williams, Simon D.P.; Bingley, Richard M.. 2014 Sea level: measuring the bounding surfaces of the ocean. Philosophical Transactions of the Royal Society of London, A, 372 (2025). 20130336.10.1098/rsta.2013.0336
Williams, J.; Hughes, C.W.; Tamisiea, M.E.; Williams, S.D.P.. 2014 Weighing the ocean with bottom-pressure sensors: robustness of the ocean mass annual cycle estimate. Ocean Science, 10 (4). 701-718.10.5194/os-10-701-2014
Bos, M.S.; Williams, S.D.P.; Araujo, I.B.; Bastos, L.. 2014 The effect of temporal correlated noise on the sea level rate and acceleration uncertainty. Geophysical Journal International, 196 (3). 1423-1430.10.1093/gji/ggt481
Aldiss, Don; Burke, Helen; Chacksfield, Barrie; Bingley, Richard; Teferle, Norman; Williams, Simon; Blackman, David; Burren, Richard; Press, Nigel. 2014 Geological interpretation of current subsidence and uplift in the London area, UK, as shown by high precision satellite-based surveying. Proceedings of the Geologists' Association, 125 (1). 1-13.10.1016/j.pgeola.2013.07.003
Williams, Simon D.P.; Moore, Philip; King, Matt A.; Whitehouse, Pippa L.. 2014 Revisiting GRACE Antarctic ice mass trends and accelerations considering autocorrelation. Earth and Planetary Science Letters, 385. 12-21.10.1016/j.epsl.2013.10.016
Serpelloni, Enrico; Faccenna, Claudio; Spada, Giorgio; Dong, Danan; Williams, Simon D.P.. 2013 Vertical GPS ground motion rates in the Euro-Mediterranean region: New evidence of velocity gradients at different spatial scales along the Nubia-Eurasia plate boundary. Journal of Geophysical Research: Solid Earth, 118 (11). 6003-6024.10.1002/2013JB010102
Gazeaux, Julien; Williams, Simon; King, Matt; Bos, Machiel; Dach, Rolf; Deo, Manoj; Moore, Angelyn W; Ostini, Luca; Petrie, Elizabeth; Roggero, Marco; Teferle, Felix Norman; Olivares, German; Webb, Frank H.. 2013 Detecting offsets in GPS time series: First results from the detection of offsets in GPS experiment. Journal of Geophysical Research: Solid Earth, 118 (5). 2397-2407.10.1002/jgrb.50152
Bos, M.S.; Fernandes, R.M.S.; Williams, S.D.P.; Bastos, L.. 2013 Fast error analysis of continuous GNSS observations with missing data. Journal of Geodesy, 87 (4). 351-360.10.1007/s00190-012-0605-0
Geng, Jianghui; Williams, Simon D.P.; Teferle, Felix N.; Dodson, Alan H.. 2012 Detecting storm surge loading deformations around the southern North Sea using subdaily GPS. Geophysical Journal International, 191 (2). 569-578.10.1111/j.1365-246X.2012.05656.x
Van Camp, Michel; de Viron, Olivier; Scherneck, Hans-Georg; Hinzen, Klaus-Günter; Williams, Simon D.P.; Lecocq, Thomas; Quinif, Yves; Camelbeeck, Thierry. 2011 Repeated absolute gravity measurements for monitoring slow intraplate vertical deformation in western Europe. Journal of Geophysical Research, 116 (B8). B08402.10.1029/2010JB008174
Williams, S. D. P.; Penna, N. T.. 2011 Non-tidal ocean loading effects on geodetic GPS heights. Geophysical Research Letters, 38, L09314. 5, pp.10.1029/2011GL046940
Thomas, Ian D.; King, Matt A.; Bentley, Michael J.; Whitehouse, Pippa L.; Penna, Nigel T.; Williams, Simon D. P.; Riccardo, E. M. Riva; Lavallee, David A.; Clarke, Peter J.; King, Edward C.; Hindmarsh, Richard C.A.; Koivula, Hannu. 2011 Widespread low rates of Antarctic glacial isostatic adjustment revealed by GPS observations. Geophysical Research Letters, 38, L22302. 6, pp.10.1029/2011GL049277
King, M. A.; Altamimi, Z.; Boehm, J.; Bos, M.; Dach, R.; Elosegui, P.; Fund, F.; Hernandez-Pajares, M.; Lavallee, D.; Cerveira, P. J. M.; Penna, N.; Riva, R. E. M.; Steigenberger, P.; van Dam, T.; Vittuari, L.; Williams, S.; Willis, P.. 2010 Improved constraints on models of glacial isostatic adjustment: a review of the contribution of ground-based geodetic observations. Surveys in Geophysics, 31 (5). 465-507.10.1007/s10712-010-9100-4
Hughes, C. W.; Williams, S. D. P.. 2010 The color of sea level: importance of spatial variations in spectral shape for assessing the significance of trends. Journal of Geophysical Research, 115, C10048. 18, pp.10.1029/2010JC006102
Van Camp, M.; Metivier, L.; de Viron, O.; Meurers, B.; Williams, S. D. P.. 2010 Characterizing long-time scale hydrological effects on gravity for improved distinction of tectonic signals. Journal of Geophysical Research, 115, B07407. 10, pp.10.1029/2009jb006615
Woeppelmann, G.; Letetrel, C.; Santamaria, A.; Bouin, M. N.; Collilieux, X.; Altamimi, Z.; Williams, S. D. P.; Miguez, B. M.. 2009 Rates of sea-level change over the past century in a geocentric reference frame. Geophysical Research Letters, 36, L12607. 6, pp.10.1029/2009GL038720
Teferle, F. N.; Bingley, R. M.; Orliac, E. J.; Williams, S. D. P.; Woodworth, P. L.; McLaughlin, D.; Baker, T. F.; Shennan, I.; Milne, G. A.; Bradley, S. L.; Hansen, D. N.. 2009 Crustal motions in Great Britain: evidence from continuous GPS, absolute gravity and Holocene sea-level data.". Geophysical Journal International, 178 (1). 23-46.10.1111/j.1365-246X.2009.04185.x
King, Matt A.; Williams, Simon D.P.. 2009 Apparent stability of GPS monumentation from short-baseline time series. Journal of Geophysical Research, 114. B10403.10.1029/2009JB006319
Woodworth, P. L.; Williams, S. D. P.. 2009 Trends in UK Mean Sea Level Revisited. Geophysical Journal International, 176. 19-30.10.1111/j.1365-246X.2008.03942.x
Bingley, R.M.; Teferle, F.N.; Orliac, E.J.; Dodson, A.H.; Williams, S.D.P.; Blackman, D.L.; Baker, T.F.; Riedmann, M.; Haynes, M.; Press, N.; Aldiss, D.T.; Burke, H.C.; Chacksfield, B.C.; Tragheim, D.; Tarrant, O.; Reeder, T.; Lavery, S.; Meadowcroft, I.; Surendran, S.; Goudie, J.R.; Richardson, D.. 2008 Measurement of current changes in land levels as input to long-term planning for flood risk management along the Thames Estuary. Journal of Flood Risk Management, 1 (3). 162-172.10.1111/j.1753-318X.2008.00018.x
Bos, M. S.; Fernandes, R. M. S.; Williams, S. D. P.; Bastos, L.. 2008 Fast error analysis of continuous GPS observations. Journal of Geodesy;, 82 (3). 157-166.10.1007/s00190-007-0165-x
Teferle, F. N.; Williams, S. D. P.; Kierulf, H. P.; Bingley, R. M.; Plag, H-P.. 2008 A continuous GPS coordinate time series analysis strategy for high-accuracy vertical land movements. Physics and Chemistry of the Earth, 33 (3-4). 205-216.10.1016/j.pce.2006.11.002
Williams, S. D. P.. 2008 CATS: GPS coordinate time series analysis software. GPS Solutions, 12 (2). 147-153.10.1007/s10291-007-0086-4
Bingley, Richard; Teferle, Norman; Orliac, Etienne; Dodson, Alan; Williams, Simon; Blackman, David; Baker, Trevor; Riedmann, Michael; Haynes, Mark; Aldiss, Don; Burke, Helen; Chacksfield, Barrie; Tragheim, Doug. 2007 Measuring changes in land and sea levels: a regional study of the Thames Estuary and River Thames. Geomatics World, Sept/Oct 2007. 23-25.
Appleby, G.; Wilkinson, M.; Williams, Simon; Ziebart, M.; Smith, V.. 2007 Stability of the Herstmonceux space geodetic site from multi-technique analyses. Geophysical Research Abstracts, 9 (08495). 1 p..
Fratepietro, F.; Baker, T. F.; Williams, S. D. P.; Van Camp, M.. 2006 Ocean loading deformations caused by storm surges on the northwest European shelf. Geophysical Research Letters, 33 (6), L06317. 10.1029/2005GL025475
Teferle, F. N; Bingley, R. M; Williams, S. D. P.; Baker, T. F.; Dodson, A. H. 2006 Using continuous GPS and absolute gravity to separate vertical land movements and changes in sea-level at tide-gauges in the UK. Philosophical Transactions of the Royal Society of London, A, 364 (1841). 917-930.10.1098/rsta.2006.1746
Williams, Simon D.P.; Willis, Pascal. 2006 Error Analysis of Weekly Station Coordinates in the DORIS Network. Journal of Geodesy, 80 (8-11). 525-539.10.1007/s00190-006-0056-6

Book section

Teferle, F. N.; Hunegnaw, A.; Ahmed, F.; Sidorov, D.; Woodworth, P.L.; Foden, P.R.; Williams, S.D.P.. 2015 The King Edward Point Geodetic Observatory, South Georgia, South Atlantic Ocean. In: Rizos, Chris, (ed.)Proceedings of IAG 150 Years, IAG Symposium, Potsdam, 2013. Heidelberg, Springer, 625-630. (IAG Symposia, 143).
Teferle, F. N.; Bingley, R.; Waugh, A.I.; Dodson, A.H.; Williams, S. D. P.; Baker, T. F.. 2007 Sea level in the British Isles: combining absolute gravimetry and continuous GPS to infer vertical land movements at tide gauges. In: Tregoning, P.; Rizos, C., (eds.)Dynamic planet monitoring and understanding a dynamic planet with geodetic and oceanographic tools. Berlin, Springer, 23-30.

Conference item

Bingley, Richard; Teferle, Norman; Dodson, Alan; Williams, Simon; Baker, Trevor. 2007 Measuring changes in ground level at tide gauges using continuous GPS and absolute gravimetry, to improve estimates of changes in sea level around Britain. In: Proceedings of the 41st Defra Flood and Coastal Management conference 2006, 4th July to 6th July 2006, University of York, London, 4th July - 6th July 2006. DEFRA.