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Seismic observations of glaciogenic ocean waves (micro-tsunamis) on icebergs and ice shelves

  • Douglas R. MacAyeal (a1), Emile A. Okal (a2), Richard C. Aster (a3) and Jeremy N. Bassis (a1)
Abstract
Abstract

Seismometers deployed over a 3 year period on icebergs in the Ross Sea and on the Ross Ice Shelf, Antarctica, reveal that impulsive sources of ocean surface waves are frequent (e.g. ∼200 events per year in the Ross Sea) in the ice-shelf and iceberg-covered environment of coastal Antarctica. The 368 events recorded by our field deployment suggest that these impulsive events are generated by glaciological mechanisms, such as (1) small-scale calving and edge wasting of icebergs and ice-shelf fronts, (2) edge-on-edge closing and opening associated with iceberg collisions and (3) possibly the impulsive opening of void space associated with ice-shelf rifting and basal crevasse formation. The observations described here provide a background of glaciogenic ocean-wave phenomena relevant to the Ross Sea and suggest that these phenomena may be exploited in the future (using more purposefully designed observation schemes) to understand iceberg calving and ice-shelf disintegration processes.

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References
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Anandakrishnan S., Catania G.A., Alley R.B. and Horgan H.J.. 2007. Discovery of till deposition at the grounding line of Whillans Ice Stream. Science, 315(5820), 18351838.
Aster R.C., McNamara D.E. and Bromirski P.D.. 2008. Multidecadal climate-induced variability in microseisms. Seismol. Res. Lett., 79(2), 194202.
Bass D.W. 1980. Stability of icebergs. Ann. Glaciol., 1, 4347.
Bassis J.N., Fricker H.A. and Minster J.B.. 2007. Seismicity and deformation associated with ice-shelf rift propagation. J. Glaciol., 53(183), 523536.
Bentley C.R., Clough J.W., Jezek K.C. and Shabtaie S.. 1979. Ice-thickness patterns and the dynamics of the Ross Ice Shelf, Antarctica. J. Glaciol., 24(90), 287294.
Bindschadler R.A., King M.A., Alley R.B., Anandakrishnan S. and Padman L.. 2003. Tidally controlled stick–slip discharge of a West Antarctic ice stream. Science, 301(5636),10871089.
Braun M. and Humbert A.. 2009. Recent retreat of Wilkins Ice Shelf reveals new insights in ice shelf break-up mechanisms. Geosci. Remote Sens. Lett, 46(2), 263267.
Braun M., Humbert A. and Moll A.. 2008. Changes of Wilkins Ice Shelf over the past 15 years and inferences on its stability. Cryos. Discuss., 2(3), 341382.
Bromirski P.D. and Duennebier F.K.. 2002. The near-coastal microseism spectrum: spatial and temporal wave climate relationships. J. Geophys. Res., 107(B8), 2166. (10.1029/2001JB000265.)
Brunt K.M. 2008. Tidal motion of the Ross Ice Shelf and its interaction with the Siple Coast Ice Streams, Antarctica. (PhD thesis, University of Chicago.)
Cathles L.M., Okal E.A. and MacAyeal D.R.. In press. Seismic observations of sea swell on the floating Ross Ice Shelf, Antarctica. J. Geophys. Res.
Davey F.J. 2004. Ross Sea bathymetry, 1 : 2 000 000, version 1.0. Lower Hutt, Institute of Geological Nuclear Sciences. (Map no. 16.)
Ekström G., Nettles M. and Abers G.A.. 2003. Glacial earthquakes. Science, 302(5645), 622624.
Ekström G., Nettles M. and Tsai V.C.. 2006. Seasonality and increasing frequency of Greenland glacial earthquakes. Science, 311(5768), 17561758.
Goodman D.J., Wadhams P. and Squire V.A.. 1980. The flexural response of a tabular ice island to ocean swell. Ann. Glaciol., 1, 2327.
Gutenberg B. 1947. Microseisms and weather forecasting. J. Meteorol., 2, 2128.
Hanson J.A. and Bowman J.R.. 2005. Dispersive and reflected tsunami signals from the 2004 Indian Ocean tsunami observed on hydrophones and seismic stations. Geophys. Res. Lett., 32(17), L17608. (10.1029/2005GL023783.)
Holdsworth G. and Glynn J.E.. 1978. Iceberg calving from floating glaciers by a vibrating mechanism. Nature, 274(5670), 464466.
Jezek K.C. and Bentley C.R.. 1983. Field studies of bottom crevasses in the Ross Ice Shelf, Antarctica. J. Glaciol., 29(101), 118126.
Kristensen M., Squire V.A. and Moore S.C.. 1982. Tabular icebergs in ocean waves. Nature, 297(5868), 669671.
Lazzara M.A., Jezek K.C., Scambos T.A., MacAyeal D.R. and van der Veen C.J.. 1999. On the recent calving of icebergs from the Ross Ice Shelf. Polar Geogr., 23(3), 201212.
Longuet-Higgins M.S. 1950. A theory of the origin of microseisms. Philos. Trans. R. Soc. London, Ser. A, 243, 135.
MacAyeal D.R. 1984. Numerical simulations of the Ross Sea tides. J. Geophys. Res., 89(C1), 607615.
MacAyeal D.R., Okal E.A. and Aster R.C.. 2006a. Ambient seismic signals observed in iceberg-filled waters of the Ross Sea, Antarctica. [Abstr. S41A-1317.] Eos, 87(52).
MacAyeal D.R. and 13 others. 2006b. Transoceanic wave propagation links iceberg calving margins of Antarctica with storms in tropics and Northern Hemisphere. Geophys. Res. Lett., 33(17), L17502. (10.1029/2006GL027235.)
MacAyeal D.R., Okal E.A., Aster R.C. and Bassis J.N.. 2008a. Seismic and hydroacoustic tremor generated by colliding icebergs. J. Geophys. Res., 113(F3), F03011. (10.1029/2008JF001005.)
MacAyeal D.R., Okal M.H., Thom J.E., Brunt K.M., Kim Y.-J. and Bliss A.K.. 2008b. Tabular iceberg collisions within the coastal regime. J. Glaciol., 54(185), 371386.
Munk W.H., Miller G.R., Snodgrass F.E. and Barber N.F.. 1963. Directional recording of swell from distant storms. Philos. Trans. R. Soc. London, Ser. A, 255(1062), 505584.
Nye J.F. and Potter J.R.. 1980. The use of catastrophe theory to analyse the stability and toppling of icebergs. Ann. Glaciol., 1, 4954.
Okal E.A. 2005. Seismic records of the 2004 Sumatra and other tsunamis: a quantitative study. Pure Appl. Geophys., 164(2–3), 325253.
Okal E.A., Fryer G.J., Borrero J.C. and Ruscher C.. 2002. The landslide and local tsunami of 13 September 1999 on Fatu Hiva (Marquesas Islands; French Polynesia). Bull. Soc. Géol. France, 173(4), 359367.
Okal E.A., Fritz H.M., Raveloson R., Joelson G., Pancosková P. and Rambolamanana G.. 2006. Madagascar field survey after the December 2004 Indian Ocean tsunami. Earthquake Spectra, 22(S3), S263S283.
Okal E.A. and MacAyeal D.R.. 2006. Seismic recording on drifting icebergs: catching seismic waves, tsunamis and storms from Sumatra and elsewhere. Seismol. Res. Lett., 77(6), 659671.
Okal E.A., Talandier J. and Reymond D.. 2007. Quantification of hydrophone records of the 2004 Sumatra tsunami. Pure Appl. Geophys., 164(2–3), 309323.
Okal M.H. 2005. Characteristics of iceberg collisions. (MS thesis, University of Chicago.)
Padman L., Erofeeva S. and Joughin I.. 2003. Tides of the Ross Sea and Ross Ice Shelf cavity. Antarct. Sci., 15(1), 3140.
Robertson R., Padman L. and Egbert G.D.. 1998. Tides in the Weddell Sea. In Jacobs S.S. and Weiss R.F., eds. Ocean, ice and atmosphere: interactions at the Antarctic continental margin. Washington, DC, American Geophysical Union, 341369. (Antarctic Research Series 75.)
Rott H., Skvarca P. and Nagler T.. 1996. Rapid collapse of northern Larsen Ice Shelf, Antarctica. Science, 271(5250), 788792.
Scambos T. and 7 others. 2008. Calving and ice shelf break-up processes investigated by proxy: Antarctic tabular iceberg evolution during northward drift. J. Glaciol., 54(187), 579591.
Scambos T. and 7 others. In press. Ice shelf disintegration by plate bending and hydro-fracture: satellite observations and model results of the 2008 Wilkins Ice Shelf break-ups. Earth Planet. Sci. Lett.
Schwerdtfeger P. 1980. Iceberg oscillations and ocean waves. Ann. Glaciol., 1, 6365.
Squire V.A. 2007. Of ocean waves and sea-ice revisited. Cold Reg. Sci. Technol., 49(2), 110133.
Squire V.A., Robinson W.H., Meylan M. and Haskell T.G.. 1994. Observations of flexural waves on the Erebus Ice Tongue, McMurdo Sound, Antarctica, and nearby sea ice. J. Glaciol., 40(135), 377385.
Squire V.A., Dugan J.P., Wadhams P., Rottier P.J. and Liu A.K.. 1995. Of ocean waves and sea ice. Annu. Rev. Fluid Mech., 27, 115168.
Synolakis C., Okal E. and Bernard E.. 2005. The megatsunami of December 26, 2004. The Bridge, 35(2), 2635.
Talandier J., Hyvernaud O., Okal E.A. and Piserchia P.-F.. 2002. Long-range detection of hydroacoustic signals from large icebergs in the Ross Sea, Antarctica. Earth Planet. Sci. Lett., 203(1), 519534
Talandier J., Hyvernaud O., Reymond D. and Okal E.A.. 2006. Hydroacoustic signals generated by parked and drifting icebergs in the Southern Indian and Pacific Oceans. Geophys. J. Int., 165(3), 817834.
Wadhams P., Kristensen M. and Orheim O.. 1983. The response of Antarctic icebergs to ocean waves. J. Geophys. Res., 88(C10), 60536065.
Wiens D.A., Anandakrishnan S., Wineberry J.P. and King M.A.. 2008. Simultaneous teleseismic and geodetic observations of the stick–slip motion of an Antarctic ice stream. Nature, 453(7196), 770774.
Williams R.T. and Robinson E.S.. 1981. Flexural waves in the Ross Ice Shelf. J. Geophys. Res., 86(C7), 66436648.
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Journal of Glaciology
  • ISSN: 0022-1430
  • EISSN: 1727-5652
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