Ross Ice Shelf Icequakes Associated With Ocean Gravity Wave Activity
Ross Ice Shelf Icequakes Associated With Ocean Gravity Wave Activity
复制标题
与海洋重力波活动相关的罗斯冰架冰震
DOI:
10.1029/2019gl084123
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发表时间:
2019
影响因子:
5.2
通讯作者:
Nyblade, A. A.
中科院分区:
文献类型:
--
作者:
Chen, Z.;Bromirski, P. D.;Gerstoft, P.;Stephen, R. A.;Lee, W. S.;Yun, S.;Olinger, S. D.;Aster, R. C.;Wiens, D. A.;Nyblade, A. A.
Gravity waves impacting ice shelves illicit a suite of responses that can affect ice shelf integrity. Broadband seismometers deployed on the Ross Ice Shelf, complemented by a near‐icefront seafloor hydrophone, establish the association of strong icequake activity with ocean gravity wave amplitudes (AG) below 0.04 Hz. The Ross Ice Shelf‐front seismic vertical displacement amplitudes (ASV) are well correlated withAG, allowing estimating the frequency‐dependent transfer function from gravity wave amplitude to icefront vertical displacement amplitude (TGSV(f)).TGSV(f) is 0.6–0.7 at 0.001–0.01 Hz but decreases rapidly at higher frequencies. Seismicity of strong icequakes exhibits spatial and seasonal associations with different gravity wave frequency bands, with the strongest icequakes observed at the icefront primarily during the austral summer when sea ice is minimal and swell impacts are strongest.
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影响因子:
3.6
作者:
M. Ilyas;M. Meylan;B. Lamichhane;L. Bennetts
通讯作者:
L. Bennetts
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
O. Sergienko
通讯作者:
O. Sergienko
影响因子:
3.4
作者:
Chen, Zhao;Bromirski, Peter D.;Nyblade, Andrew A.
通讯作者:
Nyblade, Andrew A.
影响因子:
3.4
作者:
Brunt, Kelly M.;Okal, Emile A.;MacAyeal, Douglas R.
通讯作者:
MacAyeal, Douglas R.
DOI:
10.1029/tr032i005p00673
发表时间:
1951
期刊:
Eos, Transactions American Geophysical Union
影响因子:
--
作者:
F. Press;M. Ewing
通讯作者:
M. Ewing