Geometric and oceanographic controls on melting beneath Pine Island Glacier

Journal of Geophysical Research: Oceans

Volumn 119, Issue 4, 2014, Pages 2420-2438

  De Rydt, J ^a   Holland, P R ^a   Dutrieux, P ^a   Jenkins, A ^a  

^a BRITISH ANTARCTIC SURVEY   (United Kingdom)

Author keywords

ice ocean interaction; melt rates; Pine Island Glacier

Indexed keywords

GEOMETRY; ICE CONTROL; OCEANOGRAPHY;

CAVITY FORMATION; HIGH-RESOLUTION OCEAN MODEL; ICE-OCEAN INTERACTIONS; MELT RATE; OCEAN CIRCULATION; OCEAN HEAT CONTENT; PINE ISLAND GLACIERS; TOPOGRAPHIC FEATURES;

ICE;

BATHYMETRIC SURVEY; CAVITY; GLACIER RETREAT; ICE SHELF; ICE-OCEAN INTERACTION; MELTING; THERMOCLINE;

ANTARCTICA; PINE ISLAND GLACIER; WEST ANTARCTICA;

EID: 84900562166     PISSN: None     EISSN: 21699291     Source Type: Journal    
DOI: 10.1002/2013JC009513     Document Type: Article

References (42)

1. Assmann, K. M., A. Jenkins, D. R. Shoosmith, D. P. Walker, S. S. Jacobs, and, K. W. Nicholls, (2013), Variability of Circumpolar Deep Water transport onto the Amundsen Sea continental shelf through a shelf break trough, J. Geophys. Res., 118, 6603-6620, doi: 10.1002/2013JC008871.
2. Cook, A., and, D. G. Vaughan, (2010), Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years, Cryosphere, 4 (1), 77-98, doi:10.5194/tc-4-77-2010.
3. Dutrieux, P., D. G. Vaughan, H. F. J. Corr, A. Jenkins, P. R. Holland, I. Joughin, and, A. Fleming, (2013), Pine Island Glacier ice shelf melt distributed at kilometre scales, Cryosphere, 7 (2), 1591-1620, doi:10.5194/tcd-7-1591-2013.
4. Dutrieux, P., J. De Rydt, A. Jenkins, P. R. Holland, H. Kyung Ha, S. Hoon Lee, E. J. Steig, Q. Ding, E. P. Abrahamsen, and, M. Schroeder, (2014), Strong sensitivity of Pine Island Ice-Shelf melting to climatic variability, Science, 343 (6167), 174-178, doi: 10.1126/science.1244341.
5. Gladish, C. V., D. M. Holland, P. R. Holland, and, S. F. Price, (2012), Ice-shelf basal channels in a coupled ice/ocean model, J. Glaciol., 58 (212), 1527-1544, doi: 10.3189/2012JoG12J003.
6. Grosfeld, K., R. Gerdes, and, J. Determann, (1997), Thermohaline circulation and interaction between ice shelf cavities and the adjacent open ocean, J. Geophys. Res., 102 (C7), 15,595-15,610, doi: 10.1029/97JC00891.
7. Heimbach, P., and, M. Losch, (2012), Adjoint sensitivities of sub-ice shelf melt rates to ocean circulation under Pine Island Ice Shelf, West Antarctica, Ann. Glaciol., 53 (60), 59-69, doi: 10.3189/2012/AoG60A025.
8. Holland, D. M., and, A. Jenkins, (1999), Modeling thermodynamic ice ocean interactions at the base of an ice shelf, J. Phys. Oceanogr., 29, 1787-1800. (Pubitemid 30061299)
9. Holland, D. M., R. H. Thomas, B. De Young, M. H. Ribergaard, and, B. Lyberth, (2008a), Acceleration of Jakobshavn Isbrae triggered by warm subsurface ocean waters, Nat. Geosci., 1 (10), 659-664.
10. Holland, P. R., A. Jenkins, and, D. M. Holland, (2008b), The response of ice shelf basal melting to variations in ocean temperature, J. Clim., 21 (11), 2558-2572, doi: 10.1175/2007JCLI1909.1.
11. Jacobs, S. S., H. H. Hellmer, and, A. Jenkins, (1996), Antarctic ice sheet melting in the Southeast Pacific, Geophys. Res. Lett., 23 (9), 957-960.
12. Jacobs, S. S., A. Jenkins, C. F. Giulivi, and, P. Dutrieux, (2011), Stronger ocean circulation and increased melting under Pine Island Glacier ice shelf, Nat. Geosci., 4 (6), 1-5, doi: 10.1038/ngeo1188.
13. Jenkins, A., H. H. Hellmer, and, D. M. Holland, (2001), The role of meltwater advection in the formulation of conservative boundary conditions at an ice-ocean interface, J. Phys. Oceanogr., 31 (1), 285-296. (Pubitemid 32265655)
14. Jenkins, A., P. Dutrieux, S. S. Jacobs, S. D. McPhail, J. R. Perrett, A. T. Webb, and, D. White, (2010a), Observations beneath Pine Island Glacier in West Antarctica and implications for its retreat, Nat. Geosci., 3 (7), 468-472.
15. Jenkins, A., K. W. Nicholls, and, H. F. Corr, (2010b), Observations and parameterization of ablation at the base of Ronne ice shelf, Antarctica, J. Phys. Oceanogr., 40, 2298-2312, doi: 10.1175/2010JPO4317.1.
16. Joughin, I., B. E. Smith, and, D. M. Holland, (2010), Sensitivity of 21st century sea level to ocean-induced thinning of Pine Island Glacier, Antarctica, Geophys. Res. Lett., 37, L20502, doi: 10.1029/2010GL044819.
17. Ligtenberg, S. R. M., M. M. Helsen, and, M. R. van den Broeke, (2011), An improved semi-empirical model for the densification of Antarctic firn, Cryosphere, 5 (4), 809-819.
18. Little, C. M., A. Gnanadesikan, and, M. Oppenheimer, (2009), How ice shelf morphology controls basal melting, J. Geophys. Res., 114, C12007, doi: 10.1029/2008JC005197.
19. Losch, M., (2008), Modeling ice shelf cavities in a z-coordinate ocean general circulation model, J. Geophys. Res., 113, doi: 10.1029/2007JC004368.
20. Mankoff, K. D., S. S. Jacobs, S. M. Tulaczyk, and, S. E. Stammerjohn, (2012), The role of Pine Island Glacier ice shelf basal channels in deep-water upwelling, polynyas and ocean circulation in Pine Island Bay, Antarctica, Ann. Glaciol., 53 (60), 123-128, doi: 10.3189/2012AoG60A062.
21. Marshall, J., C. Hill, L. Perelman, and, A. Adcroft, (1997), Hydorstatic, quasi-hydrostatic, and nonhydrostatic ocean modeling, J. Geophys. Res., 102, 5733-5752.
22. Medley, B., et al. (2013), Airborne-radar and ice-core observations of annual snow accumulation over Thwaites Glacier, West Antarctica confirm the spatiotemporal variability of global and regional atmospheric models, Geophys. Res. Lett., 40, 3649-3654, doi: 10.1002/grl.50706.
23. Muto, A., S. Anandakrishnan, and, R. B. Alley, (2013), Subglacial bathymetry and sediment layer distribution beneath the Pine Island Glacier ice shelf, West Antarctica, modeled using aerogravity and autonomous underwater vehicle data, Ann. Glaciol., 54 (64), 27-32, doi: 10.3189/2013AoG64A110.
24. Pacanowski, R. C., and, S. G. H. Philander, (1981), Parameterization of vertical mixing in numerical models of tropical oceans, J. Phys. Oceanogr., 11, 1443-1451.
25. Park, J. W., N. Gourmelen, A. Shepherd, S. W. Kim, D. G. Vaughan, and, D. J. Wingham, (2013), Sustained retreat of the Pine Island Glacier, Geophys. Res. Lett., 40, 2137-2142, doi: 10.1002/grl.50379.
26. Payne, A. J., P. R. Holland, A. P. Shepherd, I. C. Rutt, A. Jenkins, and, I. Joughin, (2007), Numerical modeling of ocean-ice interactions under Pine Island Bay's ice shelf, J. Geophys. Res., 112, C10019, doi: 10.1029/ 2006JC003733.
27. Pritchard, H. D., S. R. M. Ligtenberg, H. A. Fricker, D. G. Vaughan, M. R. van den Broeke, and, L. Padman, (2012), Antarctic ice-sheet loss driven by basal melting of ice shelves, Nature, 484 (7395), 502-505.
28. Rignot, E. J., (1998), Fast recession of a West Antarctic glacier, Science, 281 (5376), 549-551, doi: 10.1126/science.281.5376.549. (Pubitemid 28357367)
29. Rignot, E., and, K. Steffen, (2008), Channelized bottom melting and stability of floating ice shelves, Geophys. Res. Lett., 35, L02503, doi: 10.1029/2007GL031765.
30. Rignot, E., S. Jacobs, J. Mouginot, and, B. Scheuchl, (2013), Ice-shelf melting around Antarctica, Science, 341 (6143), 266-270, doi: 10.1126/science.1235798.
31. Scambos, T., T. Haran, M. Fahnestock, T. Painter, and, J. Bohlander, (2006), MODIS-based Mosaic of Antarctica (MOA) data sets: Continent-wide surface morphology and snow grain size, Remote Sens. Environ., 111 (2), 242-257, doi: 10.1016/j.rse.2006.12.020. (Pubitemid 350001197)
32. Schodlok, M. P., D. Menemenlis, E. Rignot, and, M. Studinger, (2012), Sensitivity of the ice-shelf/ocean system to the sub-ice-shelf cavity shape measured by NASA IceBridge in Pine Island Glacier, West Antarctica, Ann. Glaciol., 53 (60), 156-162, doi: 10.3189/2012AoG60A073.
33. Sergienko, O. V., D. N. Goldberg, and, C. M. Little, (2013), Alternative ice shelf equilibria determined by ocean environment, J. Geophys. Res., 118, 970-981, doi: 10.1002/jgrf.20054.
34. Shepherd, A., D. Wingham, and, E. Rignot, (2004), Warm ocean is eroding West Antarctic Ice Sheet, Geophys. Res. Lett., 31, L23402, doi: 10.1029/2004GL021284.
35. Shepherd, A., D. Wingham, D. Wallis, K. Giles, S. Laxon, and, A. V. Sundal, (2010), Recent loss of floating ice and the consequent sea level contribution, Geophys. Res. Lett., 37, L13503, doi: 10.1029/2010GL042496.
36. Shepherd, A., et al. (2012), A reconciled estimate of ice-sheet mass balance, Science, 338 (6111), 1183-1189, doi: 10.1126/science.1228102.
37. Thoma, M., A. Jenkins, D. Holland, and, S. Jacobs, (2008), Modelling Circumpolar Deep Water intrusions on the Amundsen Sea continental shelf, Antarctica, Geophys. Res. Lett., 35, L18602, doi: 10.1029/2008GL034939.
38. Van der Veen, C. J., (1985), Numerical modelling of ice shelves and ice tongues, Ann. Geophys., 4 (B), 45-54.
39. Vaughan, D. G., H. F. J. Corr, R. A. Bindschadler, P. Dutrieux, G. H. Gudmundsson, A. Jenkins, T. Newman, P. L. Vornberger, and, D. Wingham, (2012), Subglacial melt channels and fracture in the floating part of Pine Island Glacier, Antarctica, J. Geophys. Res., 117, F03012, doi: 10.1029/2012JF002360.
40. Wahlin, A. K., X. Yuan, G. Bjork, and, C. Nohr, (2010), Inflow of warm circumpolar deep water in the central Amundsen shelf, J. Phys. Oceanogr., 40 (6), 1427-1434, doi: 10.1175/2010JPO4431.1.
41. Walker, D. P., M. A. Brandon, A. Jenkins, J. T. Allen, J. A. Dowdeswell, and, J. Evans, (2007), Oceanic heat transport onto the Amundsen Sea shelf through a submarine glacial trough, Geophys. Res. Lett., 34, L02602, doi: 10.1029/2006GL028154.
42. Walker, D. P., A. Jenkins, K. M. Assmann, D. R. Shoosmith, and, M. A. Brandon, (2013), Oceanographic observations at the shelf break of the Amundsen Sea, Antarctica, J. Geophys. Res., 118, 2906-2918, doi: 10.1002/jgrc.20212.