Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Donald E. Voigt"'
Autor:
John M. Fegyveresi, Richard B. Alley, Donald E. Voigt, Joan J. Fitzpatrick, Lawrence A. Wilen
Publikováno v:
Annals of Glaciology, Vol 60, Pp 8-19 (2019)
Measurements of a sample from ~580 m depth in the WAIS Divide (WDC06A) ice core reveal that bubbles are preferentially elongated in the basal plane of their parent grain, as expected if bubble shape preserves the record of dominant basal glide. This
Externí odkaz:
https://doaj.org/article/d186581ba64c4a58a38c9654a8380165
Autor:
DAN KLUSKIEWICZ, EDWIN D. WADDINGTON, SRIDHAR ANANDAKRISHNAN, DONALD E. VOIGT, KENICHI MATSUOKA, MICHAEL P. McCARTHY
Publikováno v:
Journal of Glaciology, Vol 63, Pp 603-617 (2017)
We describe methods for measuring crystal orientation fabric with sonic waves in an ice core borehole, with special attention paid to vertical-girdle fabrics that are prevalent at the WAIS Divide. The speed of vertically propagating compressional wav
Externí odkaz:
https://doaj.org/article/12af70a67c97417dbef04fed621360ba
Autor:
Joseph J. Talghader, Merlin L. Mah, Joan J. Fitzpatrick, Donald E. Voigt, Dave Hultman, Wing Yi Chan
Automated c-axis analyzers are a critical tool for harvesting large-scale ice crystal orientation data from thin section analysis, but existing examples are not designed for deployment into the fie...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26f5ff77c23d437a1426d4c5807af31b
https://doi.org/10.1002/essoar.10502183.1
https://doi.org/10.1002/essoar.10502183.1
Autor:
Joan J. Fitzpatrick, Richard B. Alley, Lawrence A. Wilen, John M. Fegyveresi, Donald E. Voigt
Publikováno v:
Annals of Glaciology. 60:8-19
Measurements of a sample from ~580 m depth in the WAIS Divide (WDC06A) ice core reveal that bubbles are preferentially elongated in the basal plane of their parent grain, as expected if bubble shape preserves the record of dominant basal glide. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d46286290adaed21b54211f3fc5304f7
https://doi.org/10.1017/aog.2018.23
https://doi.org/10.1017/aog.2018.23
Autor:
Michael P. McCarthy, Donald E. Voigt, Kenichi Matsuoka, Dan Kluskiewicz, Sridhar Anandakrishnan, Edwin D. Waddington
Publikováno v:
Journal of Glaciology. 63:603-617
We describe methods for measuring crystal orientation fabric with sonic waves in an ice core borehole, with special attention paid to vertical-girdle fabrics that are prevalent at the WAIS Divide. The speed of vertically propagating compressional wav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58006dd589075421da66c6d979a7ea19
https://doi.org/10.1017/jog.2017.20
https://doi.org/10.1017/jog.2017.20
Autor:
N. T. Stevens, Joan J. Fitzpatrick, Kurt M. Cuffey, Joseph R. McConnell, Donald E. Voigt, M. K. Spencer, John M. Fegyveresi, Richard B. Alley
Publikováno v:
Paleoceanography. 31:416-433
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66ada7136e7b53ce69ed21a2f13f2c3b
https://doi.org/10.1002/2015pa002851
https://doi.org/10.1002/2015pa002851
Publikováno v:
Earth and Planetary Science Letters. 550:116543
Thwaites Glacier (TG), West Antarctica, is losing mass in response to oceanic forcing. Future evolution could lead to deglaciation of the marine basins of the West Antarctic Ice Sheet, depending on ongoing and future climate forcings, but also on bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b05fc014966b010485fe488d5dd2ee65
https://doi.org/10.1016/j.epsl.2020.116543
https://doi.org/10.1016/j.epsl.2020.116543
Autor:
Jihong Cole-Dai, Joseph R. McConnell, Joan J. Fitzpatrick, Tyler J. Fudge, M. K. Spencer, Gabriella E. Jardine, Richard B. Alley, Lawrence A. Wilen, N. T. Stevens, John M. Fegyveresi, Donald E. Voigt, Eric D. Cravens
Publikováno v:
Journal of Glaciology. 60:1181-1198
The WAIS (West Antarctic Ice Sheet) Divide deep ice core was recently completed to a total depth of 3405 m, ending 50 m above the bed. Investigation of the visual stratigraphy and grain characteristics indicates that the ice column at the drilling lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8aa6a8b4bc2be0d606acff2c965e63d9
https://doi.org/10.3189/2014jog14j100
https://doi.org/10.3189/2014jog14j100
Autor:
Bruce H. Vaughn, Xianfeng Wang, David G. Ferris, Bradley R. Markle, Edward J. Brook, Kendrick C. Taylor, Howard Conway, Anais Orsi, Nicolai B. Mortensen, Edwin D. Waddington, Joseph R. McConnell, Kenneth C. McGwire, Peter Neff, William P. Mason, James E. Lee, Qinghua Ding, Eric J. Steig, G. J. Wong, Tyler J. Fudge, Geoffrey M. Hargreaves, Michael Sigl, Jeffrey P. Severinghaus, Joan J. Fitzpatrick, Todd Sowers, Logan Mitchell, Olivia J. Maselli, Gary D. Clow, J. S. Edwards, John M. Fegyveresi, Richard B. Alley, Jay A. Johnson, Trevor Popp, Donald E. Voigt, Jihong Cole-Dai, M. K. Spencer, Hai Cheng, James W. C. White, Kurt M. Cuffey, R. Lawrence Edwards, Ross Edwards, Spruce W. Schoenemann, Andrew J. Schauer
Publikováno v:
Nature. 500:440-444
The cause of warming in the Southern Hemisphere during the most recent deglaciation remains a matter of debate. Hypotheses for a Northern Hemisphere trigger, through oceanic redistributions of heat, are based in part on the abrupt onset of warming se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7deea5724d70c879ca6fa2fe9097d403
https://doi.org/10.1038/nature12376
https://doi.org/10.1038/nature12376
Publikováno v:
Annals of Glaciology. 54:142-148
Active seismic imaging of glaciers and ice sheets is important for constraining inputs to climate models, such as englacial ice fabric and the nature of the basal interface. However, acquiring high-quality seismic data is time-consuming and resource-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06abc8cdcdfa7fe0f0bcaa33c66e0f09
https://doi.org/10.3189/2013aog64a432
https://doi.org/10.3189/2013aog64a432