Laser altimetry reveals complex pattern of Greenland Ice Sheet dynamics

Proceedings of the National Academy of Sciences of the United States of America

Volumn 111, Issue 52, 2014, Pages 18478-18483

  Csatho, Beata M ^a   Schenka, Anton F ^a   Van Der Veen, Cornelis J ^b   Babonis, Gregory ^a   Duncan, Kyle ^a   Rezvanbehbahani, Soroush ^b   Van Den Broeke, Michiel R ^c   Simonsen, Sebastian B ^d   Nagarajan, Sudhagar ^e   Van Angelen, Jan H ^c  

^a UNIVERSITY AT BUFFALO   (United States)

^b UNIVERSITY OF KANSAS   (United States)

^c UTRECHT UNIVERSITY   (Netherlands)

^d TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

^e Florida Atlantic Univ   (United States)

Author keywords

Greenland Ice Sheet; Ice dynamics; Laser altimetry; Mass balance

Indexed keywords

ACCELERATION; ARTICLE; CLIMATE; GLACIAL MASS BALANCE; GREENLAND; ICE SHEET; LASER ALTIMETRY; MEASUREMENT; PRIORITY JOURNAL; SEA LEVEL RISE; SURFACE PROPERTY; THICKNESS;

EID: 84924299919     PISSN: 00278424     EISSN: 10916490     Source Type: Journal    
DOI: 10.1073/pnas.1411680112     Document Type: Article

References (46)

1. Rignot E, Velicogna I, van den Broeke MR, Monaghan A, Lenaerts J (2011) Acceleration of the contribution of the Greenland and Antarctic ice sheets to sea level rise. Geophys Res Lett 38(5):L05503.
2. Zwally HJ, et al. (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.
3. Shepherd A, et al. (2012) A reconciled estimate of ice-sheet mass balance. Science 338(6111):1183-1189.
4. van den Broeke M, et al. (2009) Partitioning recent Greenland mass loss. Science 326(5955):984-986.
5. Church JA, et al. (2013) Sea level change. Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, eds Stocker TF, et al. (Cambridge Univ Press, New York), pp 1137-1216.
6. Joughin I, et al. (2008) Continued evolution of Jakobshavn Isbrae following its rapid speedup. J Geophys Res 113(F4):F04006.
7. Holland DM, Thomas RH, De Young B, Ribergaard MH, Lyberth B (2008) Acceleration of Jakobshavn Isbrtriggered by warmsubsurface ocean waters. Nat Geosci 1(10):659-664.
8. van der Veen CJ, Plummer JC, Stearns LA (2011) Controls on the recent speed-up of Jakobshavn Isbræ, West Greenland. J Glaciol 57(204):770-782.
9. Price SF, Payne AJ, Howat IM, Smith BE (2011) Committed sea-level rise for the next century from Greenland ice sheet dynamics during the past decade. Proc Natl Acad Sci USA 108(22):8978-8983.
10. Nick FM, et al. (2013) Future sea-level rise from Greenland's main outlet glaciers in a warming climate. Nature 497(7448):235-238.
11. Goelzer H, et al. (2013) Sensitivity of Greenland ice sheet projections to model formulations. J Glaciol 59(216):733-749.
12. Joughin I, Alley RB, Holland DM (2012) Ice-sheet response to oceanic forcing. Science 338(6111):1172-1176.
13. Straneo F, et al. (2013) Challenges to understanding the dynamic response of Greenland's marine terminating glaciers to oceanic and atmospheric forcing. Bull Am Meteorol Soc 94(8):1131-1144.
14. Straneo F, Heimbach P (2013) North Atlantic warming and the retreat of Greenland's outlet glaciers. Nature 504(7478):36-43.
15. McFadden EM, Howat IM, Joughin I, Smith BE, Ahn Y (2011) Changes in the dynamics of marine terminating outlet glaciers in west Greenland (2000-2009). J Geophys Res 116(F2):F02022.
16. Moon T, Joughin I, Smith B, Howat I (2012) 21st-century evolution of Greenland outlet glacier velocities. Science 336(6081):576-578.
17. Rignot E, Kanagaratnam P (2006) Changes in the velocity structure of the Greenland Ice Sheet. Science 311(5763):986-990.
18. Howat IM, Joughin I, Scambos TA (2007) Rapid changes in ice discharge from Greenland outlet glaciers. Science 315(5818):1559-1561.
19. Howat IM, et al. (2011) Mass balance of Greenland's three largest outlet glaciers, 2000-2010. Geophys Res Lett 38(12):L12501.
20. Khan SA, Wahr J, Bevis M, Velicogna I, Kendrick E (2010) Spread of ice mass loss into northwest Greenland observed by GRACE and GPS. Geophys Res Lett 37(6):L06501.
21. Khan SA, et al. (2014) Sustained mass loss of the northeast Greenland ice sheet triggered by regional warming. Nat Clim Change 4(4):292-299.
22. Harig C, Simons FJ (2012) Mapping Greenland's mass loss in space and time. Proc Natl Acad Sci USA 109(49):19934-19937.
23. Luthcke SB, et al. (2013) Antarctica, Greenland and Gulf of Alaska land-ice evolution from an iterated GRACE global mascon solution. J Glaciol 59(216):613-631.
24. Sasgen I, et al. (2012) Timing and origin of recent regional ice-mass loss in Greenland. Earth Planet Sci Lett 333:293-303.
25. Pritchard HD, Arthern RJ, Vaughan DG, Edwards LA (2009) Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets. Nature 461(7266):971-975.
26. Thomas R, Frederick E, Krabill W, Manizade S, Martin C (2009) Recent changes on Greenland outlet glaciers. J Glaciol 55(189):147-162.
27. Krabill WB, et al. (2002) Aircraft laser altimetry measurement of elevation changes of the Greenland ice sheet: Technique and accuracy assessment. J Geodyn 34(3):357-376.
28. Zwally HJ, et al. (2002) ICESat's laser measurements of polar ice, atmosphere, ocean, and land. J Geodyn 34(3):405-445.
29. Hofton MA, Blair JB, Luthcke SB, Rabine DL (2008) Assessing the performance of 20-25 m footprint waveform lidar data collected in ICESat data corridors in Greenland. Geophys Res Let 35(24):L24501.
30. Schenk T, Csathó B (2012) A new methodology for detecting ice sheet surface elevation changes from laser altimetry data. IEEE Trans Geosci Remote Sens 50(9):3302-3316.
31. Schenk T, Csatho B, van der Veen C, McCormick D (2014) Fusion of multi-sensor surface elevation data for improved characterization of rapidly changing outlet glaciers in Greenland. Remote Sens Environ 149:239-251.
32. Rignot E, Mouginot J (2012) Ice flow in Greenland for the International Polar Year 2008-2009. Geophys Res Lett 39(11):L11501.
33. Thomas R, et al. (2001) Mass balance of higher-elevation parts of the Greenland ice sheet. J Geophys Res 106(D24):33707-33716.
34. Bjørk AA, et al. (2012) An aerial view of 80 years of climate-related glacier 278 fluctuations in southeast Greenland. Nat Geosci 5(6):427-432.
35. Huybrechts P (1994) The present evolution of the Greenland ice sheet: An assessment by modelling. Global Planet Change 9(1):39-51.
36. Enderlin EM, et al. (2014) An improved mass budget for the Greenland ice sheet. Geophys Res Lett 41(3):866-872.
37. Kjær KH, et al. (2012) Aerial photographs reveal late-20th-century dynamic ice loss in northwestern Greenland. Science 337(6094):569-573.
38. Schoof C (2010) Ice-sheet acceleration driven by melt supply variability. Nature 468(7325):803-806.
39. Koenig LS, Mige C, Forster RR, Brucker L (2014) Initial in situ measurements of perennial meltwater storage in the Greenland firn aquifer. Geophys Res Lett 41(1):81-85.
40. G A, Wahr J, Zhong S (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.
41. van Angelen JH, van den Broeke MR, Wouters B, Lenaerts JTM (2014) Contemporary (1960-2012) evolution of the climate and surface mass balance of the Greenland ice sheet. Surv Geophys 35(5):1155-1174.
42. Reeh N, Fisher DA, Koerner RM, Clausen HB (2005) An empirical firn-densification model comprising ice lenses. Ann Glaciol 42(1):101-106.
43. Sørensen LS, et al. (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.
44. Lucas-Picher P, et al. (2012) Very high resolution regional climate model simulations over Greenland: Identifying added value. J Geophys Res 117(D2):D02108.
45. Bamber JL, et al. (2013) A new bed elevation dataset for Greenland. Cryosphere 7(2):499-510.
46. Rastner P, Bolch T, Molg N, Machguth H, Paul F (2012) The first complete glacier inventory for the whole of Greenland. Cryosphere 6(4):1483-1495.