School of Earth and Environment

Andrew Shepherd Prof. Andrew Shepherd

Professor of Earth Observation

Email address: A.Shepherd@leeds.ac.uk

Biography

twitter: @andyshep_cpom

google scholar: Andrew Shepherd

I am Professor of Earth Observation at the University of Leeds, Director of the NERC Centre for Polar Observation and Modelling, Principal Scientific Advisor to the European Space Agency CryoSat satellite mission, and co-leader of the ESA-NASA Ice Sheet Mass Balance Inter-comparison Exercise. I use satellites to study physical processes of Earth's climate, and my main contributions to science have involved developing remote observations of the cryosphere, with particular emphasis on the quantitative techniques of radar interferometry and radar altimetry. I have also worked on studies of arid land degradation using satellite infrared radiometry and models of atmospheric radiative transfer, and I have led satellite validation campaigns in Europe, Africa, and Antarctica. I was educated in the Department of Physics and Astronomy at the University of Leicester, and I have held academic posts at University College London, at the University of Cambridge, and at the University of Edinburgh.

  • 2008: Philip Leverhulme Prize
  • 2014: Royal Society Woldfson Research Merit Award

Qualifications

  • 1994: BSc Physics with Astrophysics, University of Leicester
  • 1999: PhD Physics, "Land Surface Temperature derivred from the Along Track Scanning Radiometer", University of Leicester

Memberships/Fellowships

  • American Geophysical Union
  • International Glaciology Society

Research Interests

My research focusses on measuring changes of the Antarctic and Greenland ice sheets, on understanding their interaction with the global climate system, and on establishing their contribution to global sea level rise. I also have a keen interest in the calibration and validation of satellite systems, and in the development of novel satellite sensors to tackle problems in geophysical research. To tackle these problems, I work closely with technical experts in space agencies and in the space industrial sector, with scientific collaborators in glaciology, meteorology, oceanography, and ice sheet modelling, and with government agencies.

Teaching Interests

I teach on several courses, including The Atmosphere of Planet Earth (1st year), Frontiers in Environmental Science (3rd year), and Earth Observation from Space (3rd Year).

Project details

Project title

Please contact me if you are interested in studying for a PhD in a subject related to my work, such as glaciology or remote sensing.

Funding

  • ESA Ice Sheets Climate Change Initiative, Co-I, 2011-2014
  • NERC Ice Sheet Stability Research Programme (iSTAR-C), Co-I, 2012-2016
  • NERC Ice Sheet Stability Research Programme (iSTAR-D), PI, 2012-2016
  • ESA Scientific and Technical Support to the CryoSat-2 Mission, PI, 2012-2014
  • ESA CryoSat+ Grounding Line Ice Thickness and Topography (GLITTER), PI, 2013-2015
  • ESA CryoSat+ CryoTop, PI, 2013-2015
  • ESA STSE-Mass Balance, PI, 2013-2016
  • ESA CryoSat Calibration and Validation for Land Ice, Co-I, 2013-2014
  • NERC Centre for Polar Observation and Modelling, PI, 2014-2019
  • ESA Glaciers Climate Change Initiative, Co-I, 2014-2017
  • ESA/Eumetsat Sentinel-3 Mission Performance Centre, Co-I, 2014-2017

Publications

  • McMillan M; Shepherd A; Sundal A; Briggs K; Muir A; Ridout A; Hogg A; Wingham D (2014) Increased ice losses from Antarctica detected by CryoSat-2, Geophysical Research Letters, 41, pp.3899-3905. doi: 10.1002/2014GL060111
  • Park JW; Gourmelen N; Shepherd A; Kim SW; Vaughan DG; Wingham DJ (2013) Sustained retreat of the Pine Island Glacier, Geophysical Research Letters, 40, pp.2137-2142. doi: 10.1002/grl.50379
  • McMillan M; Corr H; Shepherd A; Ridout A; Laxon S; Cullen R (2013) Three-dimensional mapping by CryoSat-2 of subglacial lake volume changes, Geophysical Research Letters, 40, pp.4321-4327. doi: 10.1002/grl.50689
  • Sundal AV; Shepherd A; van den Broeke M; Van Angelen J; Gourmelen N; Park J (2013) Controls on short-term variations in Greenland glacier dynamics, JOURNAL OF GLACIOLOGY, 59, pp.883-892. doi: 10.3189/2013JoG13J019
  • Paul F; Bolch T; Kääb A; Nagler T; Nuth C; Scharrer K; Shepherd A; Strozzi T; Ticconi F; Bhambri R; Berthier E; Bevan S; Gourmelen N; Heid T; Jeong S; Kunz M; Lauknes TR; Luckman A; Merryman J; Moholdt G; Muir A; Neelmeijer J; Rankl M; VanLooy J; Van Ni (2013) The glaciers climate change initiative: Methods for creating glacier area, elevation change and velocity products, Remote Sensing of Environment, . doi: 10.1016/j.rse.2013.07.043
  • Leeson AA; Shepherd A; Sundal AV; Johansson AM; Selmes N; Briggs K; Hogg A; Fettweis X (2013) A comparison of supraglacial lake observations derived from MODIS imagery at the western margin of the Greenland ice sheet, Journal of Glaciology, 59, pp.1179-1188.
  • Ticconi F; Levinsen JF; Khvorostovsky K; Forsberg R; Shepherd A (2013) Preliminary results of the ice-sheet-CCI round robin activity on the estimation of surface elevation changes, International Geoscience and Remote Sensing Symposium (IGARSS), pp.244-247. doi: 10.1109/IGARSS.2013.6721137
  • Gladstone RM; Lee V; Rougier J; Payne AJ; Hellmer H; Le Brocq A; Shepherd A; Edwards TL; Gregory J; Cornford SL (2012) Calibrated prediction of Pine Island Glacier retreat during the 21st and 22nd centuries with a coupled flowline model, Earth and Planetary Science Letters, 333-334, pp.191-199. doi: 10.1016/j.epsl.2012.04.022
  • McMillan M; Shepherd A; Gourmelen N; Park J-W; Nienow P; Rinne E; Leeson A (2012) Mapping ice-shelf flow with interferometric synthetic aperture radar stacking, JOURNAL OF GLACIOLOGY, 58, pp.265-277. doi: 10.3189/2012JoG11J072
  • Leeson AA; Shepherd A; Palmer S; Sundal A; Fettweis X (2012) Simulating the growth of supraglacial lakes at the western margin of the Greenland ice sheet, Cryosphere, 6, pp.1077-1086. doi: 10.5194/tc-6-1077-2012
  • Shepherd A; Ivins ER; A G; Barletta VR; Bentley MJ; Bettadpur S; Briggs KH; Bromwich DH; Forsberg R; Galin N; Horwath M; Jacobs S; Joughin I; King MA; Lenaerts JT; Li J; Ligtenberg SR; Luckman A; Luthcke SB; McMillan M; Meister R; Milne G; Mouginot J; Mui (2012) A reconciled estimate of ice-sheet mass balance., Science, 338, pp.1183-1189. doi: 10.1126/science.1228102
  • Paul F; Bolch T; Kaab A; Nagler T; Shepherd A; Strozzi T (2012) Satellite-based glacier monitoring in the ESA project Glaciers-CCI, International Geoscience and Remote Sensing Symposium (IGARSS), pp.3222-3225. doi: 10.1109/IGARSS.2012.6350738
  • Sundal AV; Shepherd A; Nienow P; Hanna E; Palmer S; Huybrechts P (2011) Melt-induced speed-up of Greenland ice sheet offset by efficient subglacial drainage, NATURE, 469, pp.522-U83. doi: 10.1038/nature09740
  • Palmer S; Shepherd A; Nienow P; Joughin I (2011) Seasonal speedup of the Greenland Ice Sheet linked to routing of surface water, EARTH PLANET SC LETT, 302, pp.423-428. doi: 10.1016/j.epsl.2010.12.037
  • Rinne E; Shepherd A; Muir A; Wingham D (2011) A Comparison of Recent Elevation Change Estimates of the Devon Ice Cap as Measured by the ICESat and EnviSAT Satellite Altimeters, IEEE T GEOSCI REMOTE, 49, pp.1902-1910. doi: 10.1109/TGRS.2010.2096472
  • King MA; Padman L; Nicholls K; Clarke PJ; Gudmundsson GH; Kulessa B; Shepherd A (2011) Ocean tides in the Weddell Sea: New observations on the Filchner-Ronne and Larsen C ice shelves and model validation, J GEOPHYS RES-OCEANS, 116, . doi: 10.1029/2011JC006949
  • Gourmelen N; Kim SW; Shepherd A; Park JW; Sundal AV; Bjornsson H; Palsson F (2011) Ice velocity determined using conventional and multiple-aperture InSAR, Earth and Planetary Science Letters, 307, . doi: 10.1016/j.epsl.2011.04.026
  • Rinne EJ; Shepherd A; Palmer S; van den Broeke MR; Muir A; Ettema J; Wingham D (2011) On the recent elevation changes at the Flade Isblink Ice Cap, northern Greenland, J GEOPHYS RES-EARTH, 116, . doi: 10.1029/2011JF001972
  • McMillan M; Shepherd A; Nienow P; Leeson A (2011) Tide model accuracy in the Amundsen Sea, Antarctica, from radar interferometry observations of ice shelf motion, J GEOPHYS RES-OCEANS, 116, . doi: 10.1029/2011JC007294
  • King MA; Padman L; Nicholls K; Clarke PJ; Gudmundsson GH; Kulessa B; Shepherd A (2011) Ocean tides in the Weddell Sea: New observations on the Filchner-Ronne and Larsen C ice shelves and model validation, Journal of Geophysical Research: Oceans, 116, . doi: 10.1029/2011JC006949
  • Rinne EJ; Shepherd A; Palmer S; Van Den Broeke MR; Muir A; Ettema J; Wingham D (2011) On the recent elevation changes at the Flade Isblink Ice Cap, northern Greenland, Journal of Geophysical Research: Earth Surface, 116, . doi: 10.1029/2011JF001972
  • Palmer SJ; Shepherd A; Sundal A; Rinnem E; Nienow P (2010) InSAR observations of ice elevation and velocity fluctuations at the Flade Isblink ice cap, eastern North Greenland, J GEOPHYS RES-EARTH, 115, . doi: 10.1029/2010JF001686
  • de la Pena S; Nienow P; Shepherd A; Helm V; Mair D; Hanna E; Huybrechts P; Guo Q; Cullen R; Wingham D (2010) Spatially extensive estimates of annual accumulation in the dry snow zone of the Greenland Ice Sheet determined from radar altimetry, CRYOSPHERE, 4, pp.467-474. doi: 10.5194/tc-4-467-2010
  • Shepherd A; Wingham D; Wallis D; Giles K; Laxon S; Sundal AV (2010) Recent loss of floating ice and the consequent sea level contribution, Geophysical Research Letters, 37, . doi: 10.1029/2010GL042496
  • Palmer SJ; Shepherd A; Sundal A; Rinnem E; Nienow P (2010) InSAR observations of ice elevation and velocity fluctuations at the Flade Isblink ice cap, eastern North Greenland, Journal of Geophysical Research: Earth Surface, 115, . doi: 10.1029/2010JF001686
  • McMillan M; Shepherd A; Vaughan DG; Laxon S; McAdoo D (2009) Amundsen Sea Bathymetry: The Benefits of Using Gravity Data for Bathymetric Prediction, IEEE T GEOSCI REMOTE, 47, pp.4223-4228. doi: 10.1109/TGRS.2009.2023665
  • Georgiou S; Shepherd A; McMillan M; Nienow P (2009) Seasonal evolution of supraglacial lake volume from ASTER imagery, ANN GLACIOL, 50, pp.95-100.
  • Shepherd A; Hubbard A; Nienow P; King M; McMillan M; Joughin I (2009) Greenland ice sheet motion coupled with daily melting in late summer, GEOPHYS RES LETT, 36, . doi: 10.1029/2008GL035758
  • Wingham DJ; Wallis DW; Shepherd A (2009) Spatial and temporal evolution of Pine Island Glacier thinning, 1995-2006, Geophysical Research Letters, 36, . doi: 10.1029/2009GL039126
  • Hawley RL; Shepherd A; Cullen R; Helm V; Wingham DJ (2009) Ice-sheet elevations from across-track processing of airborne interferometric radar altimetry, Geophysical Research Letters, 36, . doi: 10.1029/2009GL040416
  • Palmer S; Shepherd A; Bjornsson H; Palsson F (2009) Ice velocity measurements of Langjokull, Iceland, from interferometric synthetic aperture radar (InSAR), J GLACIOL, 55, pp.834-838.
  • Hawley RL; Shepherd A; Cullen R; Helm V; Wingham DJ (2009) Ice-sheet elevations from across-track processing of airborne interferometric radar altimetry, GEOPHYS RES LETT, 36, . doi: 10.1029/2009GL040416
  • Sundal AV; Shepherd A; Nienow P; Hanna E; Palmer S; Huybrechts P (2009) Evolution of supra-glacial lakes across the Greenland Ice Sheet, REMOTE SENS ENVIRON, 113, pp.2164-2171. doi: 10.1016/j.rse.2009.05.018
  • Wingham DJ; Wallis DW; Shepherd A (2009) Spatial and temporal evolution of Pine Island Glacier thinning, 1995-2006, GEOPHYS RES LETT, 36, . doi: 10.1029/2009GL039126
  • Vaughan DG; Corr HFJ; Smith AM; Pritchard HD; Shepherd A (2008) Flow-switching and water piracy between Rutford Ice Stream and Carlson Inlet, West Antartica, J GLACIOL, 54, pp.41-48.
  • Shepherd A; Wingham D (2008) Antarctic glacier thinning, 1992-2003, SCOT GEOGR J, 124, pp.154-164. doi: 10.1080/14702540802441144
  • Hawley RL; Brandt O; Morris EM; Kohler J; Shepherd AP; Wingham DJ (2008) Techniques for measuring high-resolution firn density profiles: case study from Kongsvegen, Svalbard, J GLACIOL, 54, pp.463-468.
  • Payne AJ; Holland PR; Shepherd AP; Rutt IC; Jenkins A; Joughin I (2007) Numerical modeling of ocean-ice interactions under Pine Island Bay's ice shelf, J GEOPHYS RES-OCEANS, 112, . doi: 10.1029/2006JC003733
  • Payne AJ; Holland PR; Shepherd AP; Rutt IC; Jenkins A; Joughin I (2007) Numerical modeling of ocean-ice interactions under Pine Island Bay's ice shelf, Journal of Geophysical Research: Oceans, 112, . doi: 10.1029/2006JC003733
  • Vieli A; Payne AJ; Shepherd A; Du Z (2007) Causes of pre-collapse changes of the Larsen B ice shelf: Numerical modelling and assimilation of satellite observations, EARTH PLANET SC LETT, 259, pp.297-306. doi: 10.1016/j.epsl.2007.04.050
  • McMillan M; Nienow P; Shepherd A; Benham T; Sole A (2007) Seasonal evolution of supra-glacial lakes on the Greenland Ice Sheet, EARTH PLANET SC LETT, 262, pp.484-492. doi: 10.1016/j.epsl.2007.08.002
  • Shepherd A; Wingham D (2007) Recent sea-level contributions of the Antarctic and Greenland ice sheets, SCIENCE, 315, pp.1529-1532. doi: 10.1126/science.1136776
  • Hawley RL; Morris EM; Cullen R; Nixdorf U; Shepherd AP; Wingham DJ (2006) ASIRAS airborne radar resolves internal annual layers in the dry-snow zone of Greenland, European Space Agency, (Special Publication) ESA SP, .
  • Hawley RL; Morris EM; Cullen R; Nixdorf U; Shepherd AP; Wingham DJ (2006) ASIRAS airborne radar resolves internal annual layers in the dry-snow zone of Greenland, GEOPHYS RES LETT, 33, . doi: 10.1029/2005GL025147
  • Wingham DJ; Siegert MJ; Shepherd A; Muir AS (2006) Rapid discharge connects Antarctic subglacial lakes, NATURE, 440, pp.1033-1036. doi: 10.1038/nature04660
  • Shepherd A (2006) Antarctica unravelled, PHYS WORLD, 19, pp.21-26.
  • Shepherd A; Wingham D; Rignot E (2004) Warm ocean is eroding West Antarctic Ice Sheet, GEOPHYS RES LETT, 31, . doi: 10.1029/2004GL021106
  • Payne AJ; Vieli A; Shepherd AP; Wingham DJ; Rignot E (2004) Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans, GEOPHYS RES LETT, 31, . doi: 10.1029/2004GL021284
  • Shepherd A; Peacock NR (2003) Ice shelf tidal motion derived from ERS altimetry, J GEOPHYS RES-OCEANS, 108, . doi: 10.1029/2001JC001152
  • Shepherd A; Peacock NA (2003) Ice shelf tidal motion derived from ERS altimetry, Journal of Geophysical Research C: Oceans, 108, pp.29-1.
  • Shepherd A; Wingham D; Payne T; Skvarca P (2003) Larsen ice shelf has progressively thinned, SCIENCE, 302, pp.856-859.
  • Dowdeswell JA; Bassford RP; Gorman MR; Williams M; Glazovsky AF; Macheret YY; Shepherd AP; Vasilenko YV; Savatyuguin LM; Hubberten H-W; Miller H (2002) Form and flow of the Academy of Sciences Ice Cap, Severnaya Zemlya, Russian High Arctic, Journal of Geophysical Research B: Solid Earth, 107, pp.5-1.
  • Dowdeswell JA; Bassford RP; Gorman MR; Williams M; Glazovsky AF; Macheret YY; Shepherd AP; Vasilenko YV; Savatyuguin LM; Hubberten HW; Miller H (2002) Form and flow of the Academy of Sciences Ice Cap, Severnaya Zemlya, Russian High Arctic, J GEOPHYS RES-SOL EA, 107, . doi: 10.1029/2000JB000129
  • Shepherd A; Wingham DJ; Mansley JAD (2002) Inland thinning of the Amundsen Sea sector, West Antarctica, GEOPHYS RES LETT, 29, . doi: 10.1029/2001GL014183
  • Shepherd A; Wingham DJ; Mansley JAD; Corr HFJ (2001) Inland thinning of Pine Island Glacier, West Antarctica, SCIENCE, 291, pp.862-864.