Transoceanic wave propagation links iceberg calving margins of Antarctica with storms in tropics and Northern Hemisphere

Douglas R. MacAyeal; Emile A. Okal; Richard C. Aster; Jeremy N. Bassis; Kelly M. Brunt; L. Mac Cathles; Robert Drucker; Helen A. Flicker; Young Jin Kim; Seelye Martin; Marianne H. Okal; Olga V. Sergienko; Mark P. Sponsler; Jonathan E. Thom

doi:10.1029/2006GL027235

Transoceanic wave propagation links iceberg calving margins of Antarctica with storms in tropics and Northern Hemisphere

Douglas R. MacAyeal, Emile A. Okal, Richard C. Aster, Jeremy N. Bassis, Kelly M. Brunt, L. Mac Cathles, Robert Drucker, Helen A. Flicker, Young Jin Kim, Seelye Martin, Marianne H. Okal, Olga V. Sergienko, Mark P. Sponsler, Jonathan E. Thom

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98 Scopus citations

Abstract

We deployed seismometers on the Ross Ice Shelf and on various icebergs adrift in the Ross Sea (including B15 A, a large 100 km by 30 km fragment of B15, which calved from the Ross Ice Shelf in March, 2000). The data reveal that the dominant energy of these floating ice masses is in the 0.01 to 0.1 Hz band, and is associated with sea swell generated in the tropical and extra-tropical Pacific Ocean. In one example, a strong storm in the Gulf of Alaska on 21 October 2005, approximately 13,500 km from the Ross Sea, generated swell that arrived at B15A immediately prior to, and during, its break-up off Cape Adare on 27 October 2005. If sea swell influences iceberg calving and break-up, a teleconnection exists between the Antarctic ice sheet mass balance and weather systems worldwide.

Original language	English (US)
Article number	L17502
Journal	Geophysical Research Letters
Volume	33
Issue number	17
DOIs	https://doi.org/10.1029/2006GL027235
State	Published - Sep 1 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Geophysics
General Earth and Planetary Sciences

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10.1029/2006GL027235

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MacAyeal, D. R., Okal, E. A., Aster, R. C., Bassis, J. N., Brunt, K. M., Cathles, L. M., Drucker, R., Flicker, H. A., Kim, Y. J., Martin, S., Okal, M. H., Sergienko, O. V., Sponsler, M. P., & Thom, J. E. (2006). Transoceanic wave propagation links iceberg calving margins of Antarctica with storms in tropics and Northern Hemisphere. Geophysical Research Letters, 33(17), Article L17502. https://doi.org/10.1029/2006GL027235

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title = "Transoceanic wave propagation links iceberg calving margins of Antarctica with storms in tropics and Northern Hemisphere",

abstract = "We deployed seismometers on the Ross Ice Shelf and on various icebergs adrift in the Ross Sea (including B15 A, a large 100 km by 30 km fragment of B15, which calved from the Ross Ice Shelf in March, 2000). The data reveal that the dominant energy of these floating ice masses is in the 0.01 to 0.1 Hz band, and is associated with sea swell generated in the tropical and extra-tropical Pacific Ocean. In one example, a strong storm in the Gulf of Alaska on 21 October 2005, approximately 13,500 km from the Ross Sea, generated swell that arrived at B15A immediately prior to, and during, its break-up off Cape Adare on 27 October 2005. If sea swell influences iceberg calving and break-up, a teleconnection exists between the Antarctic ice sheet mass balance and weather systems worldwide.",

author = "MacAyeal, {Douglas R.} and Okal, {Emile A.} and Aster, {Richard C.} and Bassis, {Jeremy N.} and Brunt, {Kelly M.} and Cathles, {L. Mac} and Robert Drucker and Flicker, {Helen A.} and Kim, {Young Jin} and Seelye Martin and Okal, {Marianne H.} and Sergienko, {Olga V.} and Sponsler, {Mark P.} and Thom, {Jonathan E.}",

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MacAyeal, DR, Okal, EA, Aster, RC, Bassis, JN, Brunt, KM, Cathles, LM, Drucker, R, Flicker, HA, Kim, YJ, Martin, S, Okal, MH, Sergienko, OV, Sponsler, MP & Thom, JE 2006, 'Transoceanic wave propagation links iceberg calving margins of Antarctica with storms in tropics and Northern Hemisphere', Geophysical Research Letters, vol. 33, no. 17, L17502. https://doi.org/10.1029/2006GL027235

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T1 - Transoceanic wave propagation links iceberg calving margins of Antarctica with storms in tropics and Northern Hemisphere

AU - MacAyeal, Douglas R.

AU - Okal, Emile A.

AU - Aster, Richard C.

AU - Bassis, Jeremy N.

AU - Brunt, Kelly M.

AU - Cathles, L. Mac

AU - Drucker, Robert

AU - Flicker, Helen A.

AU - Kim, Young Jin

AU - Martin, Seelye

AU - Okal, Marianne H.

AU - Sergienko, Olga V.

AU - Sponsler, Mark P.

AU - Thom, Jonathan E.

PY - 2006/9/1

Y1 - 2006/9/1

N2 - We deployed seismometers on the Ross Ice Shelf and on various icebergs adrift in the Ross Sea (including B15 A, a large 100 km by 30 km fragment of B15, which calved from the Ross Ice Shelf in March, 2000). The data reveal that the dominant energy of these floating ice masses is in the 0.01 to 0.1 Hz band, and is associated with sea swell generated in the tropical and extra-tropical Pacific Ocean. In one example, a strong storm in the Gulf of Alaska on 21 October 2005, approximately 13,500 km from the Ross Sea, generated swell that arrived at B15A immediately prior to, and during, its break-up off Cape Adare on 27 October 2005. If sea swell influences iceberg calving and break-up, a teleconnection exists between the Antarctic ice sheet mass balance and weather systems worldwide.

AB - We deployed seismometers on the Ross Ice Shelf and on various icebergs adrift in the Ross Sea (including B15 A, a large 100 km by 30 km fragment of B15, which calved from the Ross Ice Shelf in March, 2000). The data reveal that the dominant energy of these floating ice masses is in the 0.01 to 0.1 Hz band, and is associated with sea swell generated in the tropical and extra-tropical Pacific Ocean. In one example, a strong storm in the Gulf of Alaska on 21 October 2005, approximately 13,500 km from the Ross Sea, generated swell that arrived at B15A immediately prior to, and during, its break-up off Cape Adare on 27 October 2005. If sea swell influences iceberg calving and break-up, a teleconnection exists between the Antarctic ice sheet mass balance and weather systems worldwide.

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Transoceanic wave propagation links iceberg calving margins of Antarctica with storms in tropics and Northern Hemisphere

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