Zobrazeno 1 - 10
of 224
pro vyhledávání: '"Ralph A. Stephen"'
Autor:
Douglas A. Wiens, Richard C. Aster, Andrew A. Nyblade, Peter D. Bromirski, Peter Gerstoft, Ralph A. Stephen
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 7, Pp n/a-n/a (2024)
Abstract Ice shelves are assumed to flow steadily from their grounding lines to the ice front. We report the detection of ice‐propagating extensional Lamb (plate) waves accompanied by pulses of permanent ice shelf displacement observed by co‐loca
Externí odkaz:
https://doaj.org/article/a05f82536d464abb80a062443d152de4
Autor:
Michael G. Baker, Richard C. Aster, Douglas A. Wiens, Andrew Nyblade, Peter D. Bromirski, Peter Gerstoft, Ralph A. Stephen
Publikováno v:
Journal of Glaciology, Vol 67, Pp 58-74 (2021)
Observations of teleseismic earthquakes using broadband seismometers on the Ross Ice Shelf (RIS) must contend with environmental and structural processes that do not exist for land-sited seismometers. Important considerations are: (1) a broadband, mu
Externí odkaz:
https://doaj.org/article/dc4cbbeaba5f45968e61add8f780e6b2
Autor:
Michael G. Baker, Richard C. Aster, Robert E. Anthony, Julien Chaput, Douglas A. Wiens, Andrew Nyblade, Peter D. Bromirski, Peter Gerstoft, Ralph A. Stephen
Publikováno v:
Journal of Glaciology, Vol 65, Pp 912-925 (2019)
The Ross Ice Shelf (RIS) is host to a broadband, multimode seismic wavefield that is excited in response to atmospheric, oceanic and solid Earth source processes. A 34-station broadband seismographic network installed on the RIS from late 2014 throug
Externí odkaz:
https://doaj.org/article/c19e068fd6c146ebb36f9fff0dfd8585
Autor:
ZHAO CHEN, PETER D. BROMIRSKI, PETER GERSTOFT, RALPH A. STEPHEN, DOUGLAS A. WIENS, RICHARD C. ASTER, ANDREW A. NYBLADE
Publikováno v:
Journal of Glaciology, Vol 64, Pp 730-744 (2018)
Ice shelves play an important role in buttressing land ice from reaching the sea, thus restraining the rate of grounded ice loss. Long-period gravity-wave impacts excite vibrations in ice shelves that can expand pre-existing fractures and trigger ice
Externí odkaz:
https://doaj.org/article/4670a4ece2544c488572411b813fe74e
Publikováno v:
Scientific Drilling, Iss special, Pp 107-109 (2007)
Externí odkaz:
https://doaj.org/article/3b845271d4b5462f807bcc4234fc2228
Autor:
Richard C. Aster, Hank M. Cole, Andrew A. Nyblade, Peter Gerstoft, Bradley P. Lipovsky, Peter D. Bromirski, Ralph A. Stephen, Douglas A. Wiens
Publikováno v:
Seismological Research Letters. 92:2768-2792
Ocean swell interacting with Antarctic ice shelves produces sustained (approximately, 2×106 cycles per year) gravity-elastic perturbations with deformation amplitudes near the ice front as large as tens to hundreds of nanostrain. This process is the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9530ea82bcd4b6b6c9af3a41d03d7bd
https://doi.org/10.1785/0220200478
https://doi.org/10.1785/0220200478
Autor:
Peter Gerstoft, Douglas A. Wiens, Peter D. Bromirski, Andrew A. Nyblade, Ralph A. Stephen, M. G. Baker, Richard C. Aster
Publikováno v:
Journal of Glaciology. 67:58-74
Observations of teleseismic earthquakes using broadband seismometers on the Ross Ice Shelf (RIS) must contend with environmental and structural processes that do not exist for land-sited seismometers. Important considerations are: (1) a broadband, mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ffe27d8f9c576f35815413c7ae76fb7
https://doi.org/10.1017/jog.2020.83
https://doi.org/10.1017/jog.2020.83
Autor:
Ralph A. Stephen, Julien Chaput, Douglas A. Wiens, Richard C. Aster, Robert E. Anthony, M. G. Baker, Peter Gerstoft, Peter D. Bromirski, Andrew A. Nyblade
Publikováno v:
Journal of Glaciology. 65:912-925
The Ross Ice Shelf (RIS) is host to a broadband, multimode seismic wavefield that is excited in response to atmospheric, oceanic and solid Earth source processes. A 34-station broadband seismographic network installed on the RIS from late 2014 throug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5970fb7461d885d02fdc671a0dd257f8
https://doi.org/10.1017/jog.2019.64
https://doi.org/10.1017/jog.2019.64
Autor:
Matthew A. Dzieciuch, Peter F. Worcester, S. Thompson Bolmer, Ilya A. Udovydchenkov, Ralph A. Stephen
Publikováno v:
The Journal of the Acoustical Society of America. 146:1913-1922
A significant aspect of bottom-interaction in deep water acoustic propagation, from point sources to point receivers, is the diffraction (or scattering) of energy from discrete seafloor locations along repeatable, deterministic paths in three-dimensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f03e46e363f812575ad7948c207415e
https://doi.org/10.1121/1.5125427
https://doi.org/10.1121/1.5125427
Autor:
Richard C. Aster, Douglas A. Wiens, Won Sang Lee, Z. Chen, Peter Gerstoft, Peter D. Bromirski, S. Yun, A. A. Nyblade, Ralph A. Stephen, S. Olinger
Publikováno v:
Geophysical Research Letters. 46:8893-8902
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9ae3322e7d44e78af5711bbc8b86b0b
https://doi.org/10.1029/2019gl084123
https://doi.org/10.1029/2019gl084123