School of Earth and Environment
Untitled Document

Andrew Shepherd Prof. Andrew Shepherd

Professor of Earth Observation; Director of Research

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

Biography

Andrew Shepherd uses satellites to study physical processes of Earth's climate. He is a member of the NERC National Centre for Earth Observation, coordinator of the European Space Agency VECTRA InSAR consortium, and a contributing author of the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Andrew's main contributions to science have involved remote observations of the cryosphere, with particular emphasis on the quantitative techniques of radar interferometry and radar altimetry. He has also worked on studies of arid land degradation using satellite infrared radiometry and models of atmospheric radiative transfer, and he has led satellite validation campaigns in Europe, Africa, and Antarctica. His currently funded research includes investigations of the stability of the Larsen Ice Shelf in Antarctica, developing methods to retrieve elevation in regions of rugged terrain using the CryoSat-2 interferometric altimeter, estimates of the sea level contribution due to Antarctica and Greenland, and monitoring changes in Earth's glaciers and ice caps.

Publications

  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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.
  • 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
  • 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
  • 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, GEOPHYS RES LETT, 36, . doi:10.1029/2009GL039126
  • 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.
  • 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
  • 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
  • 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
  • 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
  • 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
  • Shepherd, A (2006) Antarctica unravelled, PHYS WORLD, 19, pp.21-26.
  • 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
  • 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; Wingham, D; Rignot, E (2004) Warm ocean is eroding West Antarctic Ice Sheet, GEOPHYS RES LETT, 31, . doi:10.1029/2004GL021106
  • Shepherd, A; Peacock, NR (2003) Ice shelf tidal motion derived from ERS altimetry, J GEOPHYS RES-OCEANS, 108, . doi:10.1029/2001JC001152
  • Shepherd, A; Wingham, D; Payne, T; Skvarca, P (2003) Larsen ice shelf has progressively thinned, SCIENCE, 302, pp.856-859.
  • Shepherd, A; Wingham, DJ; Mansley, JAD (2002) Inland thinning of the Amundsen Sea sector, West Antarctica, GEOPHYS RES LETT, 29, . doi:10.1029/2001GL014183
  • 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; Corr, HFJ (2001) Inland thinning of Pine Island Glacier, West Antarctica, SCIENCE, 291, pp.862-864.