West Antarctic balance calculations: Impact of flux-routing algorithm, smoothing algorithm and topography

Computers and Geosciences

Volumn 32, Issue 10, 2006, Pages 1780-1795

  Le Brocq, Anne M ^a   Payne, Antony J ^a   Siegert, Martin J ^a  

^a UNIVERSITY OF BRISTOL   (United Kingdom)

Author keywords

Balance flux; Balance velocity; Routing algorithm; Smoothing filter; West Antarctic ice sheet

Indexed keywords

ALGORITHMS; COMPUTER GRAPHICS; FINITE DIFFERENCE METHOD; GRAVITATIONAL EFFECTS; MATERIALS BALANCE; VELOCITY MEASUREMENT;

BALANCE FLUX; BALANCE VELOCITY; ICE SHEET; ROUTING ALGORITHM; SMOOTHING FILTER;

ICE;

ALGORITHMS; COMPUTER GRAPHICS; FINITE DIFFERENCE METHOD; GRAVITATIONAL EFFECTS; ICE; MATERIALS BALANCE; VELOCITY MEASUREMENT;

ALGORITHM; FLOW VELOCITY; ICE FLOW; MASS BALANCE; NUMERICAL METHOD; TOPOGRAPHY;

ANTARCTICA; WEST ANTARCTIC ICE SHEET; WEST ANTARCTICA;

EID: 33747832156     PISSN: 00983004     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.cageo.2006.05.003     Document Type: Article

References (23)

1. Anandakrishnan S., and Alley R.B. Stagnation of ice stream C, West Antarctica by water piracy. Geophysical Research Letters 24 3 (1997) 265-268
2. Bamber J., and Huybrechts P. Geometric boundary conditions for modelling the velocity field of the Antarctic ice sheet. Annals of Glaciology 23 (1996) 364-373
3. Bamber J., and Bindschadler R.A. An improved elevation dataset for climate and ice-sheet modelling: validation with satellite imagery. Annals of Glaciology 25 (1997) 439-444
4. Bamber J., Vaughan D.G., and Joughin I. Widespread complex flow in the interior of the Antarctic ice sheet. Science 287 (2000) 1248-1250
5. Bamber J., and Rignot E. Unsteady flow inferred for Thwaites Glacier, and comparison with Pine Island Glacier, West Antarctica. Journal of Glaciology 48 161 (2002) 237-246
6. Bamber J., and Gomez-Dans J. The accuracy of digital elevation models of the Antarctic continent. Earth and Planetary Science Letters 237 (2005) 516-523
7. 2-induced Climatic Change, Report of a Workshop held in Seattle, Washington, 13-15 September, 1984, US Department of Energy Report DOE/ER/60235-1(Attachment 9): pp. 172-177.
8. Budd W.F., and Warner R.C. A computer scheme for rapid calculations of balance-flux distributions. Annals of Glaciology 23 (1996) 21-27
9. Fricker H.A., Warner R.C., and Allison I. Mass balance of the Lambert Glacier-Amery Ice Shelf system, East Antarctica: a comparison of computed balance fluxes and measured fluxes. Journal of Glaciology 46 155 (2000) 561-570
10. Joughin I., Fahnestock M., Ekholm S., and Kwok R. Balance velocities of the Greenland ice sheet. Geophysical Research Letters 24 23 (1997) 3045-3048
11. Kamb B., and Echelmeyer K.A. Stress-gradient coupling in glacier flow: 1. Longitudinal averaging of the influence of ice thickness and surface slope. Journal of Glaciology 32 111 (1986) 267-298
12. Liu H., Jezek K.C., and Li B. Development of an Antarctic digital elevation model by integrating cartographic and remotely sensed data: a geographic information system based approach. Journal of Geophysical Research 104 B10 (1999) 23199-23213
13. Lythe M.B., Vaughan D.G., and The BEDMAP Consortium. BEDMAP: a new ice thickness and subglacial topographic model of Antarctica. Journal of Geophysical Research-Solid Earth 106 B6 (2001) 11335-11351
14. Paterson W.S.B. The Physics of Glaciers. third ed (1994), Elsevier, Oxford 496pp
15. Quinn P., Beven K., Chevallier P., and Planchon O. The prediction of hillslope flow paths for distributed hydrological modelling using digital terrain models. Hydrological Processes 5 (1991) 59-79
16. Rignot E., and Thomas R.H. Mass balance of polar ice sheets. Science 297 5586 (2002) 1502-1506
17. Shepherd A., Wingham D.J., Mansley J.A.D., and Corr H.F.J. Inland thinning of Pine Island Glacier, West Antarctica. Science 291 5505 (2001) 862-864
18. Shepherd A., Wingham D.J., and Mansley J.A.D. Inland thinning of the Amundsen Sea sector, West Antarctica. Geophysical Research Letters 29 10 (2002) art. no.1364
19. Tarboton D.G. A new method for the determination of flow directions and upslope areas in grid digital elevation models. Water Resources Research 33 2 (1997) 309-319
20. Testut L., Hurd R., Coleman R., Rémy F., and Legrésy B. Comparison between computed balance velocities and GPS measurements in the Lambert Glacier basin, East Antarctica. Annals of Glaciology 37 (2003) 337-343
21. Thomas R., Rignot E., Casassa G., Kanagaratnam P., Acuna C., Akins T., Brecher H., Frederick E., Gogineni P., Krabill W., Manizade S., Ramamoorthy H., Rivera A., Russell R., Sonntag J., Swift R., Yungel J., and Zwally J. Accelerated sea-level rise from West Antarctica. Science 306 5694 (2004) 255-258
22. Vaughan D.G., Bamber J.L., Giovinetto M., Russell J., and Cooper A.P.R. Reassessment of net surface mass balance in Antarctica. Journal of Climate 12 4 (1999) 933-946
23. Wu X., and Jezek K.C. Antarctic ice-sheet balance velocities from merged point and vector data. Journal of Glaciology 50 169 (2004) 219-230