Modelling flow and accreted ice in subglacial Lake Concordia, Antarctica

Earth and Planetary Science Letters

Volumn 286, Issue 1-2, 2009, Pages 278-284

  Thoma, Malte ^a,b   Grosfeld, Klaus ^a   Filina, Irina ^c   Mayer, Christoph ^b  

^a ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH   (Germany)

^b BAVARIAN ACADEMY OF SCIENCES AND HUMANITIES   (Germany)

^c UNIVERSITY OF TEXAS AT AUSTIN   (United States)

Author keywords

Antarctica; Lake Concordia; numerical modeling; subglacial lakes

Indexed keywords

ANTARCTICA; BASAL MASS; CONVECTIVE VELOCITY; FLOW MODEL; FREEZING RATE; FRESH WATER; GENERAL CIRCULATION; GEOPHYSICAL DATA; GRAVITY INVERSIONS; ICE FLOW; ICE SHEET; ICE SURFACES; LAKE AREAS; LAKE VOSTOK; MODEL STUDY; NUMERICAL MODELING; NUMERICAL MODELLING; NUMERICAL MODELS; RESIDENCE TIME; SUBGLACIAL LAKES; VERTICAL VELOCITY; WATER COLUMNS;

FREEZING; ICE; THREE DIMENSIONAL; WATER;

LAKES;

ACCRETION; AIRBORNE SURVEY; BOUNDARY CONDITION; COMPUTER SIMULATION; FLOW MODELING; GLACIAL LAKE; GRAVIMETRY; ICE FLOW; ICE SHEET; MASS BALANCE; NUMERICAL MODEL; SUBGLACIAL ENVIRONMENT; THREE-DIMENSIONAL MODELING; WATER COLUMN;

ANTARCTICA; DOME CONCORDIA; EAST ANTARCTICA;

EID: 69749128153     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2009.06.037     Document Type: Article

References (33)

1. Blankenship D. Inversion of airborne gravity data over subglacial lakes in East Antarctica. AGU Fall Meeting Abstracts (2003) B446+. Dec.
2. Chen C.-T.A., and Millero F.J. Precise thermodynamic properties for natural waters covering only the limnological range. Limnol. Oceanogr. 31 3 (1986) 657-662
3. Christner B.C., Royston-Bishop G., Foreman C.F., Arnold B.R., Tranter M., Welch K.A., Lyons W.B., Tsapin A.I., Studinger M., and Priscu J.C. Limnological conditions in subglacial Lake Vostok, Antarctica. Limnol. Oceanogr. 51 6 (2006) 10.1038/nature05554
4. Filina I., Blankenship D., Roy L., Sen M., Richter T., and Holt J. The bathymetry of two subglacial lakes in East Antarctica derived from airborne gravity and radar sounding data. 1st SCAR Open Science Conference: Antarctica and the Southern Ocean in the Global System (2004)
5. Filina I., Blankenship D., Roy L., Sen M., Richter T., and Holt J. Inversion of airborne gravity data acquired over subglacial lakes in East Antarctica. In: Fütterer D. (Ed). Antarctica - Contributions to Global Earth Sciences. Proceedings of the 9th International Symposium on Antarctic Earth Sciences (2006), Springer 129-134
6. Filina I.Y., Blankenship D.D., Thoma M., Lukin V.V., Masolov V.N., and Sen M.K. New 3D bathymetry and sediment distribution in Lake Vostok: implication for pre-glacial origin and numerical modeling of the internal processes within the lake. Earth Planet. Sci. Lett (2008) 10.1016/j.epsl.2008.09.012
7. Fricker H.A., Scambos T., Bindschadler R., and Padman L. An active subglacial water system in west Antarctica mapped from space. Science 315 5818 (2007) 1544-1548 10.1126/science.1136897
8. Gray L., Joughin I., Tulaczyk S., Spikes V.B., Bindschadler R., and Jezek K. Evidence for subglacial water transport in the West Antarctic Ice Sheet through three-dimensional satellite radar interferometry. Geophys. Res. Lett. 32 (2005). http://dx.doi.org/10.1029/2004GL021387 URL http://dx.doi.org/10.1029/2004GL021387
9. Grosfeld K., Gerdes R., and Determann J. Thermohaline circulation and interaction beneath ice shelf cavities and the adjacent open ocean. J. Geophys. Res. 102 C7 (1997) 15595-15610
10. Inman M. Antarctic drilling: the plan to unlock Lake Vostok. Science 310 5748 (2005) 611-612 10.1126/science.310.5748.611
11. Jackett D.R., and McDougall T.J. Minimal adjustment of hydrographic profiles to achieve static stability. J. Atmos. Ocean. Technol. 12 (1995) 381-389
12. Kwok R., Siegert M.J., and Carsey F.D. Ice motion over Lake Vostok, Antarctica: constraints on inferences regarding the accreted ice. J. Glaciol. 46 (2000) 689-694
13. Maule C.F., Purucker M.E., Olsen N., and Mosegaard K. Heat flux anomalies in Antarctica revealed by satellite magnetic data. Science 309 (2005) 464-467 10.1126/science.1106888 Jul
14. Mayer C., Grosfeld K., and Siegert M. Salinity impact on water flow and lake ice in Lake Vostok, Antarctica. Geophys. Res. Lett. 30 14 (2003) 1767 10.1029/2003GL017380
15. Millero F.J., and Poisson A. International one-atmosphere equation of state of seawater. Deep-Sea Res. 28 6 (1981) 625-629
16. Roy L., Sen M.K., Blankenship D.D., Stoffa P.L., and Richter T.G. Inversion and uncertainty estimation of gravity data using simulated annealing: an application over Lake Vostok, East Antarctica. Geophysics 70 1 (2005) J1-J12 10.1190/1.1852777
17. Siegert M.J., Behar A., Bentley M., Blake D., Bowden S., Christoffersen P., Cockell C., Corr H., Cullen D.C., Edwards H., Ellery A., Ellis-Evans C., Griffiths G., Hindmarsh R., Hodgson D.A., King E., Lamb H., Lane L., Makinson K., Mowlem M., Parnell J., Pearce D.A., Priscu J., Rivera A., Sephton M.A., Sims M.R., Smith A.M., Tranter M., Wadham J.L., Wilson G., and Woodward J. Exploration of Ellsworth Subglacial Lake: a concept paper on the development, organisation and execution of an experiment to explore, measure and sample the environment of a West Antarctic subglacial lake. Rev. Env. Sci. Bio. 6 1-3 (2007) 161-179 10.1007/s11157-006-9109-9
18. Siegert M.J., Carter S., Tabacco I.E., Popov S., and Blankenship D.D. A revised inventory of Antarctic subglacial lakes. Antarct. Sci. 17 3 (2005) 453-460 10.1017/S0954102005002889
19. Souchez R., Petit J.R., Jouzel J., DeAngelis M., and Tison J. Re-assessing lake Vostok's behavior from existing and new ice core data. Earth Planet. Sci. Lett. 217 (2003) 163-170
20. Studinger M., Bell R.E., and Tikku A.A. Estimating the depth and shape of subglacial Lake Vostok's water cavity from aerogravity data. Geophys. Res. Lett. 31 L12401 (2004) 10.1029/2004GL019801
21. Thoma M., Grosfeld K., and Lange M.A. Impact of the Eastern Weddell Ice Shelves on water masses in the eastern Weddell Sea. J. Geophys. Res. 111 C12010 (2006) 10.1029/2005JC003212
22. Thoma M., Grosfeld K., and Mayer C. Modelling mixing and circulation in subglacial Lake Vostok, Antarctica. Ocean Dyn. 57 6 (2007) 531-540 10.1007/s10236-007-0110-9 Dec
23. Thoma M., Grosfeld K., and Mayer C. Modelling tracer dispersion in subglacial Lake Vostok, Antarctica. In: Cooper A.K., Raymond C.R., et al. (Eds). Antarctica: A Keystone in a Changing World - Online Proceedings of the 10th ISAES X. Open-File Report 2007-1047. Extended Abstract vol. 052 (2007) 1-4
24. Thoma M., Grosfeld K., and Mayer C. Modelling accreted ice in subglacial Lake Vostok, Antarctica. Geophys. Res. Lett. 35 L11504 (2008) 1-6 10.1029/2008GL033607
25. Thoma M., Mayer C., and Grosfeld K. Sensitivity of Lake Vostok's flow regime on environmental parameters. Earth Planet. Sci. Lett. 269 1-2 (2008) 242-247 10.1016/j.epsl.2008.02.023
26. Tikku A.A., Bell R.E., and Studinger M. Lake Concordia: a second significant lake beneath the East Antarctic Ice Sheet. AGU Fall Meeting Abstracts (2002) B21A-11
27. Tikku A.A., Bell R.E., Studinger M., and Clarke G.K.C. Ice flow field over Lake Vostok, East Antarctica inferred by structure tracking. Earth Planet. Sci. Lett. 227 (2004) 249-261 10.1016/j.epsl.2004.09.021
28. Tikku A.A., Bell R.E., Studinger M., Clarke G.K.C., Tabacco I., and Ferraccioli F. Influx of meltwater to subglacial Lake Concordia, east Antarctica. J. Glaciol. 51 172 (2005) 96-104
29. Walsh D. A note on eastern-boundary intensification of flow in Lake Vostok. Ocean Model. 4 (2002) 207-218
30. Wells M.G., and Wettlaufer J.S. Circulation in Lake Vostok: a laboratory analogue study. Geophys. Res. Lett. 35 (L03501), (2008) 1-5 10.1029/2007GL032162
31. Williams M.J.M. Application of a three-dimensional numerical model to Lake Vostok: an Antarctic subglacial lake. Geophys. Res. Lett. 28 3 (2001) 531-534
32. Wingham D.J., Siegert M.J., Shepherd A., and Muir A.S. Rapid discharge connects Antarctic subglacial lakes. Nature 440 C6 (2006) 1033-1036. http://doi:10.1038nature04660 doi:10.1038nature04660
33. Wüest A., and Carmack E. A priori estimates of mixing and circulation in the hard-to-reach water body of Lake Vostok. Ocean Model. 2 1 (2000) 29-43