Zobrazeno 1 - 10
of 318
pro vyhledávání: '"Douglas A Wiens"'
Autor:
Yan Yang, Zhongwen Zhan, Martin Karrenbach, Auden Reid‐McLaughlin, Ettore Biondi, Douglas A. Wiens, Richard C. Aster
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 13, Pp n/a-n/a (2024)
Abstract The firn layer covers 98% of Antarctica's ice sheets, protecting underlying glacial ice from the external environment. Accurate measurement of firn properties is essential for assessing cryosphere mass balance and climate change impacts. Cha
Externí odkaz:
https://doaj.org/article/732a45c175fc47fbac13fa766fa4520a
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:
Jacob Clarke, Donna J. Shillington, Christine Regalla, James B. Gaherty, Justin Estep, Douglas A. Wiens, Anne Bécel, Mladen R. Nedimović
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 3, Pp n/a-n/a (2024)
Abstract Oceanic plates experience extensive normal faulting as they bend and subduct, enabling fracturing of the incoming lithosphere. Debate remains about the relative importance of pre‐existing faults, plate curvature and other factors controlli
Externí odkaz:
https://doaj.org/article/1b73951b65954a5e9f91ca85b5de1815
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 10, Pp n/a-n/a (2023)
Abstract Subduction zones are a key link between the surface water cycle and the solid Earth, as the incoming plate carries pore water and hydrous minerals into the subsurface. However, water fluxes from surface to subsurface reservoirs over geologic
Externí odkaz:
https://doaj.org/article/e968fdb5ce4e457499fff22df8a2ae81
Autor:
Walid Ben‐Mansour, Douglas A. Wiens, Hannah F. Mark, Raymond M. Russo, Andreas Richter, Eric Marderwald, Sergio Barrientos
Publikováno v:
Geophysical Research Letters, Vol 49, Iss 18, Pp n/a-n/a (2022)
Abstract Geological processes in Southern Patagonia are affected by the Patagonian slab window, formed by the subduction of the Chile Ridge and subsequent northward migration of the Chile Triple Junction. Using shear wave splitting analysis, we obser
Externí odkaz:
https://doaj.org/article/b1668d7fa9e842548e688aed04d6f26e
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:
Douglas A. Wiens
Publikováno v:
AGU Advances, Vol 2, Iss 2, Pp n/a-n/a (2021)
Externí odkaz:
https://doaj.org/article/faec30d709fe4e5eaef5f16013ca99e6
Autor:
Erica M. Lucas, Andrew A. Nyblade, Andrew J. Lloyd, Richard C. Aster, Douglas A. Wiens, John Paul O'Donnell, Graham W. Stuart, Terry J. Wilson, Ian W. D. Dalziel, J. Paul Winberry, Audrey D. Huerta
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 2, Pp n/a-n/a (2021)
Abstract We have located 117 previously undetected seismic events mainly occurring between 2015 and 2017 that originated from glacial, tectonic, and volcanic processes in central West Antarctica using data recorded on Polar Earth Observing Network (P
Externí odkaz:
https://doaj.org/article/dc78b009d54e44f5a3790c0211496072
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-14 (2019)
The evolution of the Antarctic Ice Sheet is driven by a combination of climate forcing and non-climatic feedbacks. In this review, the authors focus on feedbacks between the Antarctic Ice Sheet and the solid Earth, and the role of these feedbacks in
Externí odkaz:
https://doaj.org/article/a9a10858f8dd49b1ba10b3b6e856a1cc