Dynamic thinning of Antarctic glaciers from along-track repeat radar altimetry

Journal of Glaciology

Volumn 58, Issue 211, 2012, Pages 830-840

  Flament, Thomas ^a   Rémy, Frédérique ^a  

^a LEGOS   (France)

Author keywords

[No Author keywords available]

Indexed keywords

ENVISAT-1; GLACIER DYNAMICS; ICE FLOW; ICE SHEET; RADAR ALTIMETRY; SPATIOTEMPORAL ANALYSIS;

AMUNDSEN SEA; ANTARCTICA; EAST ANTARCTICA; PINE ISLAND GLACIER; SOUTHERN OCEAN; THWAITES GLACIER; WEST ANTARCTICA;

EID: 84867211419     PISSN: 00221430     EISSN: None     Source Type: Journal    
DOI: 10.3189/2012JoG11J118     Document Type: Article

References (40)

1. Allison I, Alley RB, Fricker HA, Thomas RH and Warner RC (2009) Ice sheet mass balance and sea level. Antarct. Sci., 21(5), 413-426 (doi: 10.1017/S0954102009990137)
2. Anandakrishnan S and Alley RB (1997) Stagnation of Ice Stream C, West Antarctica by water piracy. Geophys. Res. Lett., 24(3), 265-268 (doi: 10.1029/96GL04016)
3. Arthern RJ, Wingham DJ and Ridout AL (2001) Controls on ERS altimeter measurements over ice sheets: footprint-scale topography, backscatter fluctuations, and the dependence of microwave penetration depth upon satellite orientation. J. Geophys. Res., 106(D24), 33 471-33 484 (doi: 10.1029/2001JD000498)
4. Arthern RJ, Winebrenner DP and Vaughan DG (2006) Antarctic snow accumulation mapped using polarization of 4.3cm wavelength microwave emission. J. Geophys. Res., 111(D6), D06107 (doi: 10.1029/2004JD005667) (Pubitemid 43675913)
5. Corr HFJ, Doake CSM, Jenkins A and Vaughan DG (2001) Investigations of an 'ice plain' in the mouth of Pine Island Glacier, Antarctica. J. Glaciol., 47(156), 51-57 (doi: 10.3189/172756501781832395) (Pubitemid 32787361)
6. Helsen MM and 7 others (2008) Elevation changes in Antarctica mainly determined by accumulation variability. Science, 320(5883), 1626-1629 (doi: 10.1126/science.1153894) (Pubitemid 351931250)
7. Holt JW and 8 others (2006) New boundary conditions for the West Antarctic Ice Sheet: subglacial topography of the Thwaites and Smith glacier catchments. Geophys. Res. Lett., 33(9), L09502 (doi: 10.1029/2005GL025561) (Pubitemid 43997540)
8. Howat IM, Smith BE, Joughin I and Scambos TA (2008) Rates of southeast Greenland ice volume loss from combined ICESat and ASTER observations. Geophys. Res. Lett., 35(17), L17505 (doi: 10.1029/2008GL034496)
9. Jacobel RW, Scambos TA, Raymond CF and Gades AM (1996) Changes in the configuration of ice stream flow from the West Antarctic Ice Sheet. J. Geophys. Res., 101(B3), 5499-5504 (doi: 10.1029/95JB03735) (Pubitemid 26472904)
10. Jenkins A and 6 others (2010) Observations beneath Pine Island Glacier in West Antarctica and implications for its retreat. Nature Geosci., 3(7), 468-472 (doi: 10.1038/ngeo890)
11. Joughin I, Rignot E, Rosanova CE, Lucchitta BK and Bohlander J (2003) Timing of recent accelerations of Pine Island Glacier, Antarctica. Geophys. Res. Lett., 30(13), 1706 (doi: 10.1029/2003GL017609)
12. Joughin I, Smith BE and Holland DM (2010) Sensitivity of 21st century sea level to ocean-induced thinning of Pine Island Glacier, Antarctica. Geophys. Res. Lett., 37(20), L20502 (doi: 10.1029/2010GL044819)
13. Legrésy B, Papa F, Rémy F, Vinay G, Van den Bosch M and Zanife O-Z (2005) ENVISAT radar altimeter measurements over continental surfaces and ice caps using the ICE-2 retracking algorithm. Remote Sens. Environ., 95(2), 150-163 (doi: 10.1016/j.rse.2004.11.018) (Pubitemid 40328610)
14. Legrésy B, Rémy F and Blarel F (2006) Along track repeat altimetry for ice sheets and continental surface studies. In Proceedings of the Symposium on 15 Years of Progress in Radar Altimetry, 13-18 March 2006, Venice, Italy. European Space Agency, Noordwijk (ESA SP 614) http://earth.esa.int/ workshops/venice06/participants/181/paper-181-legrsy.pdf
15. Liu H, Jezek K, Li B and Zhao Z (2001) Radarsat Antarctic mapping project digital elevation model Version 2. National Snow and Ice Data Center, Boulder, CO. Digital media: http://nsidc.org/data/nsidc-0082.html
16. Monaghan AJ and 15 others (2006) Insignificant change in Antarctic snowfall since the International Geophysical Year. Science, 313(5788), 827-831 (doi: 10.1126/science.1128243) (Pubitemid 44223349)
17. Pritchard HD, Arthern RJ, Vaughan DG and Edwards LA (2009) Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets. Nature, 461(7266), 971-975 (doi: 10.1038/nature08471)
18. Rémy F and Parrenin F (2004) Snow accumulation variability and random walk: how to interpret changes of surface elevation in Antarctica. Earth Planet. Sci. Lett., 227(3-4), 273-280 (doi: 10.1016/j.epsl.2004.09.003) (Pubitemid 39428182)
19. Rémy Fand Parouty S (2009) Antarctic ice sheet and radar altimetry: a review. Remote Sens., 1(4), 1212-1239 (doi: 10.3390/rs1041212)
20. Rémy F, Shaeffer P and Legrésy B (1999) Ice flow physical processes derived from ERS-1 high-resolution map of Antarctica and Greenland ice sheet. Geophys. J. Int., 139(3), 645-656 (doi: 10.1046/j.1365-246x.1999.00964. x) (Pubitemid 30063559)
21. Rémy F, Testut L and Legrésy B (2002) Random fluctuations of snow accumulation over Antarctica and their relation to sea level change. Climate Dyn., 19(3-4), 267-276 (doi: 10.1007/s00382-002-0226-z) (Pubitemid 34866151)
22. Retzlaff R and Bentley CR (1993) Timing of stagnation of Ice Stream C, West Antarctica, from short-pulse radar studies of buried surface crevasses. J. Glaciol., 39(133), 553-561 (Pubitemid 24401979)
23. Rignot E (2002) Mass balance of East Antarctic glaciers and ice shelves from satellite data. Ann. Glaciol., 34, 217-227 (doi: 10.3189/ 172756402781817419) (Pubitemid 34866115)
24. Rignot E (2006) Changes in ice dynamics and mass balance of the Antarctic ice sheet. Philos. Trans. R. Soc. London, Ser. A, 364(1844), 1637-1655 (doi: 10.1098/rsta.2006.1793) (Pubitemid 44106644)
25. Rignot E (2008) Changes in West Antarctic ice stream dynamics observed with ALOS PALSAR data. Geophys. Res. Lett., 35(12), L12505 (doi: 10.1029/2008GL033365)
26. Rignot E and Thomas RH (2002) Mass balance of polar ice sheets. Science, 297(5586), 1502-1506 (doi: 10.1126/science. 1073888) (Pubitemid 34970988)
27. Rignot E and 11 others (2004) Improved estimation of the mass balance of the glaciers draining into the Amundsen Sea sector of West Antarctica from the CECS/NASA 2002 campaign. Ann. Glaciol., 39, 231-237 (doi: 10.3189/ 172756404781813916) (Pubitemid 41167028)
28. Rignot E, Mouginot J and Scheuchl B (2011) Ice flow of the Antarctic Ice Sheet. Science, 333(6048), 1427-1430 (doi: 10.1126/science.1208336)
29. Scambos TA, Haran TM, Fahnestock MA, Painter TH and Bohlander J (2007) MODIS-based Mosaic of Antarctica (MOA) data sets: continent-wide surface morphology and snow grain size. Remote Sens. Environ., 111(2-3), 242-257 (doi: 10.1016/j.rse.2006.12.020) (Pubitemid 350001197)
30. Scarchilli C, Frezzotti M, Grigioni P, De Silvestri L, Agnoletto L and Dolci S (2010) Extraordinary blowing snow transport events in East Antarctica. Climate Dyn., 34(7-8), 1195-1206 (doi: 10.1007/s00382-009-0601-0)
31. Scott JBT, Gudmundsson GH, Smith AM, Bingham RG, Pritchard HD and Vaughan DG (2009) Increased rate of acceleration on Pine Island Glacier strongly coupled to changes in gravitational driving stress. Cryosphere, 3(1), 125-131 (doi: 10.5194/tc-3-125-2009)
32. Shepherd A, Wingham DJ, Mansley JAD and Corr HFJ (2001) Inland thinning of Pine Island Glacier, West Antarctica. Science, 291(5505), 862-864 (doi: 10.1126/science.291.5505.862) (Pubitemid 32120755)
33. Shuman CA, Berthier E and Scambos TA (2011) 2001-2009 elevation and mass losses in the Larsen A and B embayments, Antarctic Peninsula. J. Glaciol., 57(204), 737-754 (doi: 10.3189/002214311797409811)
34. Smith BE, Fricker HA, Joughin IR and Tulaczyk S (2009) An inventory of active subglacial lakes in Antarctica detected by ICESat (2003-2008). J. Glaciol., 55(192), 573-595 (doi: 10.3189/002214309789470879)
35. Sørensen LS and 7 others (2011) Mass balance of the Greenland ice sheet (2003-2008) from ICESat data-the impact of interpolation, sampling and firn density. Cryosphere, 5(1), 173-186 (doi: 10.5194/tc-5-173-2011)
36. Thomas RH, Rignot EJ, Kanagaratnam K, Krabill WB and Casassa G (2004) Force-perturbation analysis of Pine Island Glacier, Antarctica, suggests cause for recent acceleration. Ann. Glaciol., 39, 133-138 (doi: 10.3189/ 172756404781814429) (Pubitemid 41167013)
37. Van den Broeke M, Van de Berg WJ and Van Meijgaard E (2006) Snowfall in coastal West Antarctica much greater than previously assumed. Geophys. Res. Lett., 33(2), L02505 (doi: 10.1029/2005GL025239) (Pubitemid 43337002)
38. Wingham DJ, Wallis DW and Shepherd A (2009) Spatial and temporal evolution of Pine Island Glacier thinning, 1995-2006. Geophys. Res. Lett., 36(17), L17501 (doi: 10.1029/2009GL039126)
39. Zwally HJ and 7 others (2005) Mass changes of the Greenland and Antarctic ice sheets and shelves and contributions to sea-level rise: 1992-2002. J. Glaciol., 51(175), 509-527 (doi: 10.3189/172756505781829007) (Pubitemid 43329191)
40. Zwally HJ and 11 others (2011) Greenland ice sheet mass balance: distribution of increased mass loss with climate warming; 2003-07 versus 1992-2002. J. Glaciol., 57(201), 88-102 (doi: 10.3189/002214311795306682)