Mass loss of the Amundsen Sea Embayment of West Antarctica from four independent techniques

Geophysical Research Letters

Volumn 41, Issue 23, 2014, Pages 8421-8428

  Sutterley, Tyler C ^a   Velicogna, Isabella ^a,b   Rignot, Eric ^a,b   Mouginot, Jeremie ^a   Flament, Thomas ^c,d   Van Den Broeke, Michiel R ^e   Van Wessem, Jan M ^e   Reijmer, Carleen H ^e  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b CALIFORNIA INSTITUTE OF TECHNOLOGY   (United States)

^c OBSERVATOIRE MIDI PYRÉNÉES   (France)

^d UNIVERSITY OF LEEDS   (United Kingdom)

^e UTRECHT UNIVERSITY   (Netherlands)

Author keywords

altimetry; ice fluxes; mass balance; time variable gravity; West Antarctica

Indexed keywords

ACCELERATION; GEODETIC SATELLITES; GLACIAL GEOLOGY; ICE; RADAR; RADAR IMAGING;

ALTIMETRY; LASER ALTIMETRY; MASS BALANCE; MASS BALANCE ESTIMATES; RADAR ALTIMETRY; SURFACE MASS BALANCE; TIME-VARIABLE GRAVITY; WEST ANTARCTICA;

GRAVITATION;

ACCELERATION; EMBANKMENT; ESTIMATION METHOD; ICE RETREAT; ICE THICKNESS; MASS BALANCE;

AMUNDSEN SEA; ANTARCTICA; SOUTHERN OCEAN; WEST ANTARCTICA;

EID: 84921459674     PISSN: 00948276     EISSN: 19448007     Source Type: Journal    
DOI: 10.1002/2014GL061940     Document Type: Article

References (58)

1. A, G., J. Wahr, and, S. Zhong, (2013), Computations of the viscoelastic response of a 3-D compressible Earth to surface loading: An application to Glacial Isostatic Adjustment in Antarctica and Canada, Geophys. J. Int., 192 (2), 557-572, doi: 10.1093/gji/ggs030.
2. Bettadpur, S., (2012), UTCSR level-2 processing standards document, Tech. Rep. GRACE 327-742, Cent. for Space Res., Univ. of Texas, Austin.
3. Blair, J. B., and, M. Hofton, (2010), IceBridge LVIS L2 Geolocated Surface Elevation Product, NASA DAAC at NSIDC, Boulder, Colo., version 1.
4. Borsa, A. A., G. Moholdt, H. A. Fricker, and, K. M. Brunt, (2014), A range correction for ICESat and its potential impact on ice-sheet mass balance studies, The Cryosphere, 8 (2), 345-357, doi: 10.5194/tc-8-345-2014.
5. Cheng, M., B. D. Tapley, and, J. C. Ries, (2013), Deceleration in the Earth's oblateness, J. Geophys. Res. Solid Earth, 118, 740-747, doi: 10.1002/jgrb.50058.
6. Farrell, W. E., (1972), Deformation of the Earth by surface loads, Rev. Geophys. Space Phys., 10 (3), 761-797, doi: 10.1029/RG010i003p00761.
7. Favier, L., G. Durand, S. L. Cornford, G. H. Gudmundsson, O. Gagliardini, F. Gillet-Chaulet, T. Zwinger, A. J. Payne, and, A. M. Le Brocq, (2014), Retreat of Pine Island Glacier controlled by marine ice-sheet instability, Nat. Clim. Change, 4 (2), 117-121, doi: 10.1038/nclimate2094.
8. Flament, T., and, F. Rémy, (2012), Dynamic thinning of Antarctic glaciers from along-track repeat radar altimetry, J. Glaciol., 58 (211), 830-840, doi: 10.3189/2012JoG11J118.
9. Fretwell, P., et al. (2013), Bedmap2: Improved ice bed, surface and thickness datasets for Antarctica, The Cryosphere, 7 (1), 375-393, doi: 10.5194/tc-7-375-2013.
10. Haran, T., J. Bohlander, T. Scambos, and, M. Fahnestock, (2013), MODIS Mosaic of Antarctica 2004 (MOA2004) Image Map, Natl. Snow and Ice Data Cent., Boulder, Colo., doi: 10.7265/N5ZK5DM5.
11. Hardy, R. L., (1971), Multiquadric equations of topography and other irregular surfaces, J. Geophys. Res., 76 (8), 1905-1915, doi: 10.1029/JB076i008p01905.
12. Howat, I. M., B. E. Smith, I. R. Joughin, and, T. A. Scambos, (2008), Rates of southeast Greenland ice volume loss from combined ICESat and ASTER observations, Geophys. Res. Lett., 35, L17505, doi: 10.1029/2008GL034496.
13. Hughes, T., (1973), Is the West Antarctic ice sheet disintegrating', J. Geophys. Res., 78 (33), 7884-7910.
14. Ivins, E. R., T. S. James, J. Wahr, E. J. O Schrama, F. W. Landerer, and, K. M. Simon, (2013), Antarctic contribution to sea level rise observed by GRACE with improved GIA correction, J. Geophys. Res. Solid Earth, 118, 3126-3141, doi: 10.1002/jgrb.50208.
15. Jekeli, C., (1981), Alternative methods to smooth the Earth's gravity field, Tech. Rep. 327, Ohio State Univ., Department of Geodetic Science and Surveying, 1958 Neil Avenue, Columbus, Ohio 43210, grant Number NGR37-008-161, OSURF Project 783210.
16. Joughin, I., B. E. Smith, and, B. Medley, (2014), Marine ice sheet collapse potentially under way for the Thwaites Glacier Basin, West Antarctica, Science, 344 (6185), 735-738, doi: 10.1126/science.1249055.
17. Krabill, W. B., (2010), IceBridge ATM L2 Icessn Elevation, Slope, and Roughness, NASA DAAC at NSIDC, Boulder, Colo., version 1.
18. Legrésy, B., F. Papa, F. Rémy, G. Vinay, M. van den Bosch, and, O.-Z. Zanife, (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.
19. Lenaerts, J. T. M., M. R. van den Broeke, W. J. van de Berg, E. van Meijgaard, and, P. Kuipers Munneke, (2012), A new, high-resolution surface mass balance map of Antarctica (1979-2010) based on regional atmospheric climate modeling, Geophys. Res. Lett., 39, L04501, doi: 10.1029/2011GL050713.
20. Ligtenberg, S. R. M., W. J. Berg, M. R. Broeke, J. G. L. Rae, and, E. Meijgaard, (2013), Future surface mass balance of the Antarctic ice sheet and its influence on sea level change, simulated by a regional atmospheric climate model, Clim. Dyn., 41 (3-4), 867-884, doi: 10.1007/s00382-013-1749-1.
21. McMillan, M., A. Shepherd, A. Sundal, K. Briggs, A. Muir, A. Ridout, A. Hogg, and, D. Wingham, (2014), Increased ice losses from Antarctica detected by CryoSat-2, Geophys. Res. Lett., 41, 3899-3905, doi: 10.1002/2014GL060111.
22. Medley, B., et al. (2014), Constraining the recent mass balance of Pine Island and Thwaites glaciers, West Antarctica, with airborne observations of snow accumulation, The Cryosphere, 8 (4), 1375-1392, doi: 10.5194/tc-8-1375-2014.
23. Mouginot, J., E. J. Rignot, and, B. Scheuchl, (2014), Sustained increase in ice discharge from the Amundsen Sea Embayment, West Antarctica, from 1973 to 2013, Geophys. Res. Lett., 41, 1576-1584, doi: 10.1002/2013GL059069.
24. Park, J. W., N. Gourmelen, A. Shepherd, S. W. Kim, D. G. Vaughan, and, D. Wingham, (2013), Sustained retreat of the Pine Island Glacier, Geophys. Res. Lett., 40, 2137-2142, doi: 10.1002/grl.50379.
25. Peltier, W. R., (2004), Global glacial isostasy and the surface of the ice-age Earth: The ice-5G (VM2) model and grace, Annu. Rev. Earth Planet. Sci., 32 (1), 111-149, doi: 10.1146/annurev.earth.32.082503.144359.
26. Pritchard, H. D., R. J. Arthern, D. G. Vaughan, and, L. A. Edwards, (2009), Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets, Nature, 461 (7266), 971-975, doi: 10.1038/nature08471.
27. Rémy, F., and, S. Parouty, (2009), Antarctic ice sheet and radar altimetry: A review, Remote Sens., 1 (4), 1212-1239, doi: 10.3390/rs1041212.
28. Rezvan-Behbahani, S., (2012), Temporal history of ice dynamics contribution to volume changes of the southeast Greenland Ice Sheet, MS thesis, Dep. of Geol. Sci., Univ. at Buffalo, New York.
29. Rignot, E., J. Mouginot, M. Morlighem, H. Seroussi, and, B. Scheuchl, (2014), Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith and Kohler glaciers, West Antarctica from 1992 to 2011, Geophys. Res. Lett., 41, 3502-3509, doi: 10.1002/2014GL060140.
30. Rignot, E. J., (1998), Fast recession of a West Antarctic glacier, Science, 281 (5376), 549-551, doi: 10.1126/science.281.5376.549.
31. Rignot, E. J., (2001), Evidence for rapid retreat and mass loss of Thwaites Glacier, West Antarctica, J. Glaciol., 47 (157), 213-222, doi: 10.3189/172756501781832340.
32. Rignot, E. J., D. G. Vaughan, M. Schmeltz, T. Dupont, and, D. MacAyeal, (2002), Acceleration of Pine Island and Thwaites Glaciers, West Antarctica, Ann. Glaciol., 34, 189-194, doi: 10.3189/172756402781817950.
33. Rignot, E. J., J. L. Bamber, M. R. van den Broeke, C. H. Davis, Y. Li, W. J. van de Berg, and, E. van Meijgaard, (2008), Recent Antarctic ice mass loss from radar interferometry and regional climate modelling, Nat. Geosci., 1 (2), 106-110, doi: 10.1038/ngeo102.
34. Rignot, E. J., J. Mouginot, and, B. Scheuchl, (2011a), Ice flow of the Antarctic ice sheet, Science, 333 (6048), 1427-1430, doi: 10.1126/science.1208336.
35. Rignot, E. J., I. Velicogna, M. R. van den Broeke, A. J. Monaghan, and, J. T. M. Lenaerts, (2011b), Acceleration of the contribution of the Greenland and Antarctic ice sheets to sea level rise, Geophys. Res. Lett., 38, L05503, doi: 10.1029/2011GL046583.
36. Sasgen, I., H. Konrad, E. R. Ivins, M. R. van den Broeke, J. L. Bamber, Z. Martinec, and, V. Klemann, (2013), Antarctic ice-mass balance 2003 to 2012: Regional reanalysis of GRACE satellite gravimetry measurements with improved estimate of glacial-isostatic adjustment based on GPS uplift rates, The Cryosphere, 7 (5), 1499-1512, doi: 10.5194/tc-7-1499-2013.
37. Savitzky, A., and, M. J. E. Golay, (1964), Smoothing and differentiation of data by simplified least squares procedures, Anal. Chem., 36 (8), 1627-1639, doi: 10.1021/ac60214a047.
38. Schenk, T., and, B. M. Csatho, (2012), A new methodology for detecting ice sheet surface elevation changes from laser altimetry data, IEEE Trans. Geosci. Remote Sens., 50 (9), 3302-3316.
39. Seroussi, H., M. Morlighem, E. Rignot, J. Mouginot, E. Larour, M. Schodlok, and, A. Khazendar, (2014), Sensitivity of the dynamics of Pine Island Glacier, West Antarctica, to climate forcing for the next 50 years, The Cryosphere, 8 (5), 1699-1710, doi: 10.5194/tc-8-1699-2014.
40. Shepherd, A., D. J. Wingham, and, J. A. D. Mansley, (2002), Inland thinning of the Amundsen Sea sector, West Antarctica, Geophys. Res. Lett., 29 (10), 2-1-2-4, doi: 10.1029/2001GL014183.
41. Shepherd, A., et al. (2012), A reconciled estimate of ice-sheet mass balance, Science, 338 (6111), 1183-1189, doi: 10.1126/science.1228102.
42. Smith, B. E., H. A. Fricker, I. R. Joughin, and, S. Tulaczyk, (2009), An inventory of active subglacial lakes in Antarctica detected by ICESat (2003-2008), J. Glaciol., 55 (192), 573-595.
43. Sørensen, L. S., S. B. Simonsen, K. Nielsen, P. Lucas-Picher, G. Spada, G. Adalgeirsdottir, R. Forsberg, and, C. S. Hvidberg, (2011), Mass balance of the Greenland ice sheet (2003-2008) from ICESat data-The impact of interpolation, sampling and firn density, The Cryosphere, 5 (1), 173-186.
44. Sutterley, T. C., I. Velicogna, B. Csatho, M. R. van den Broeke, S. Rezvan-Behbahani, and, G. Babonis, (2014), Evaluating Greenland glacial isostatic adjustment corrections using GRACE, altimetry and surface mass balance data, Environ. Res. Lett., 9 (1), 014004, doi: 10.1088/1748-9326/9/1/014004.
45. Swenson, S. C., D. Chambers, and, J. Wahr, (2008), Estimating geocenter variations from a combination of GRACE and ocean model output, J. Geophys. Res., 113, B08410, doi: 10.1029/2007JB005338.
46. Thomas, R. H., et al. (2004), Accelerated sea-level rise from West Antarctica, Science, 306 (5694), 255-258, doi: 10.1126/science.1099650.
47. van de Berg, W. J., M. R. van den Broeke, C. H. Reijmer, and, E. van Meijgaard, (2006), Reassessment of the Antarctic surface mass balance using calibrated output of a regional atmospheric climate model, J. Geophys. Res., 111, D11104, doi: 10.1029/2005JD006495.
48. van den Broeke, M. R., W. J. van de Berg, and, E. van Meijgaard, (2006), Snowfall in coastal West Antarctica much greater than previously assumed, Geophys. Res. Lett., 33, L02505, doi: 10.1029/2005GL025239.
49. van Wessem, J. M., et al. (2014), Improved representation of East Antarctic surface mass balance in a regional atmospheric climate model, J. Glaciol., 60 (222), 761-770, doi: 10.3189/2014JoG14J051.
50. Velicogna, I., (2006), Measurements of time-variable gravity show mass loss in Antarctica, Science, 311 (5768), 1754-1756, doi: 10.1126/science.1123785.
51. Velicogna, I., (2009), Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE, Geophys. Res. Lett., 36, L19503, doi: 10.1029/2009GL040222.
52. Velicogna, I., and, J. Wahr, (2013), Time-variable gravity observations of ice sheet mass balance: Precision and limitations of the GRACE satellite data, Geophys. Res. Lett., 40, 3055-3063, doi: 10.1002/grl.50527.
53. Velicogna, I., T. C. Sutterley, and, M. R. van den Broeke, (2014), Regional acceleration in ice mass loss from Greenland and Antarctica using GRACE time-variable gravity data, Geophys. Res. Lett., doi: 10.1002/2014GL061052.
54. Wahr, J., M. Molenaar, and, F. Bryan, (1998), Time variability of the Earth's gravity field: Hydrological and oceanic effects and their possible detection using GRACE, J. Geophys. Res., 103 (B12), 30,205-30,229, doi: 10.1029/98JB02844.
55. Whitehouse, P. L., M. J. Bentley, G. A. Milne, M. A. King, and, I. D. Thomas, (2012), A new glacial isostatic adjustment model for Antarctica: Calibrated and tested using observations of relative sea-level change and present-day uplift rates, Geophys. J. Int., 190 (3), 1464-1482, doi: 10.1111/j.1365-246X.2012.05557.x.
56. Wouters, B., J. L. Bamber, M. R. van den Broeke, J. T. M. Lenaerts, and, I. Sasgen, (2013), Limits in detecting acceleration of ice sheet mass loss due to climate variability, Nat. Geosci., 6 (8), 613-616, doi: 10.1038/ngeo1874.
57. Zwally, H., R. Schutz, D. Hancock, and, J. Dimarzio, (2012), GLAS/ICESat L2 Antarctic and Greenland Ice Sheet Altimetry Data (HDF5), NASA DAAC at the Natl. Snow and Ice Data Cent., Boulder, Colo., doi: 10.5067/ICESAT/GLAS/DATA205, GLA12 Version 33.
58. Zwally, H. J., M. B. Giovinetto, J. Li, H. G. Cornejo, M. A. Beckley, A. C. Brenner, J. L. Saba, and, D. Yi, (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.