Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Ryan A. Venturelli"'
Autor:
Christina L. Davis, Ryan A. Venturelli, Alexander B. Michaud, Jon R. Hawkings, Amanda M. Achberger, Trista J. Vick-Majors, Brad E. Rosenheim, John E. Dore, August Steigmeyer, Mark L. Skidmore, Joel D. Barker, Liane G. Benning, Matthew R. Siegfried, John C. Priscu, Brent C. Christner, the SALSA Science Team
Publikováno v:
ISME Communications, Vol 3, Iss 1, Pp 1-11 (2023)
Abstract Ice streams that flow into Ross Ice Shelf are underlain by water-saturated sediments, a dynamic hydrological system, and subglacial lakes that intermittently discharge water downstream across grounding zones of West Antarctic Ice Sheet (WAIS
Externí odkaz:
https://doaj.org/article/fb43de337f6447d8a56cf6e27a47f8d9
Autor:
Ryan A. Venturelli, Brenna Boehman, Christina Davis, Jon R. Hawkings, Sarah E. Johnston, Chloe D. Gustafson, Alexander B. Michaud, Cyrille Mosbeux, Matthew R. Siegfried, Trista J. Vick‐Majors, Valier Galy, Robert G. M. Spencer, Sophie Warny, Brent C. Christner, Helen A. Fricker, David M. Harwood, Amy Leventer, John C. Priscu, Brad E. Rosenheim, SALSA Science Team
Publikováno v:
AGU Advances, Vol 4, Iss 2, Pp n/a-n/a (2023)
Abstract Projections of Antarctica's contribution to future sea level rise are associated with significant uncertainty, in part because the observational record is too short to capture long‐term processes necessary to estimate ice mass changes over
Externí odkaz:
https://doaj.org/article/dcd6f4badad043bca4fa13aed850b593
Publikováno v:
Frontiers in Marine Science, Vol 5 (2018)
A reduction in dissolved oxygen availability in marine habitats is among the predicted consequences of increasing global temperatures. An understanding of past oxygenation is critical for predictions of future changes in the extent and distribution o
Externí odkaz:
https://doaj.org/article/4aee086830164e9fa7ff41ed8231a923
Autor:
Scott Braddock, Ryan A. Venturelli, Keir Nichols, Elliot Moravec, Grant V. Boeckmann, Seth Campbell, Greg Balco, Robert Ackert, David Small, Joanne S. Johnson, Nelia Dunbar, John Woodward, Sujoy Mukhopadhyay, Brent Goehring
Publikováno v:
Annals of Glaciology, Pp 1-11
We review successes and challenges from five recent subglacial bedrock drilling campaigns intended to find evidence for Antarctic Ice Sheet retreat during warm periods in the geologic past. Insights into times when the polar ice sheets were smaller t
Externí odkaz:
https://doaj.org/article/8299b31f1ad74314ac26f7109f1947ac
Autor:
Mark L. Roberts, Alan R. Gagnon, Trista J. Vick-Majors, Kathy Kasic, Wei Li, Billy Collins, Mark D. Kurz, Brad E. Rosenheim, Ryan A Venturelli, John C. Priscu
Publikováno v:
Radiocarbon. 63:1555-1568
Radiocarbon (14C) is an isotopic tracer used to address a wide range of scientific research questions. However, contamination by elevated levels of 14C is deleterious to natural-level laboratory workspaces and accelerator mass spectrometer facilities
Autor:
Greg Balco, Nathan Brown, Keir Nichols, Ryan A. Venturelli, Jonathan Adams, Scott Braddock, Seth Campbell, Brent Goehring, Joanne S. Johnson, Dylan H. Rood, Klaus Wilcken, Brenda Hall, John Woodward
Cosmogenic-nuclide concentrations in subglacial bedrock cores show that the West Antarctic Ice Sheet (WAIS) at a site between Thwaites and Pope glaciers was at least 35 m thinner than present in the past several thousand years and then subsequently t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f71c6c07f564af7d7a2171de870e798
https://doi.org/10.5194/tc-2022-172
https://doi.org/10.5194/tc-2022-172
Autor:
Greg Balco, Nathan Brown, Keir Nichols, Ryan A. Venturelli, Jonathan Adams, Scott Braddock, Seth Campbell, Brent Goehring, Joanne S. Johnson, Dylan H. Rood, Klaus Wilcken, Brenda Hall, John Woodward
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2689a3451643ff06e9c795c3c69a6e0d
https://doi.org/10.5194/tc-2022-172-supplement
https://doi.org/10.5194/tc-2022-172-supplement
Autor:
Jim McManis, Al Gagnon, Amy Leventer, Timothy Campbell, John Winans, Graham Roberts, John E. Dore, Molly O. Patterson, Brent C. Christner, Ryan A Venturelli, John C. Priscu, Edward Krula, Helen A. Fricker, Kathy Kasic, Dar Gibson, Dennis Duling, J. D. Barker, Ok-Sun Kim, Wei Li, Robert Zook, Matthew R. Siegfried, Chloe Gustafson, Justin Burnett, Christopher B. Gardner, Billy Collins, Brad E. Rosenheim, David M. Harwood, C. Davis, Cooper Elsworth, Mark Bowling, Jonas Kalin, Mark L. Skidmore, Trista J. Vick-Majors, Anatoly Mironov, Alex Michaud, Martyn Tranter, W. Berry Lyons
Publikováno v:
Annals of Glaciology. 62:340-352
The Subglacial Antarctic Lakes Scientific Access (SALSA) Project accessed Mercer Subglacial Lake using environmentally clean hot-water drilling to examine interactions among ice, water, sediment, rock, microbes and carbon reservoirs within the lake w
Autor:
Jonathan Richard Adams, Joanne S. Johnson, Stephen J. Roberts, Philippa J. Mason, Keir A. Nichols, Ryan A. Venturelli, Klaus Wilcken, Greg Balco, Brent Goehring, Brenda Hall, John Woodward, Dylan H. Rood
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e32f59bc05675386903f0878b1aaa946
https://doi.org/10.5194/tc-2022-82-supplement
https://doi.org/10.5194/tc-2022-82-supplement
Autor:
Chloe D. Gustafson, Kerry Key, Matthew R. Siegfried, J. Paul Winberry, Helen A. Fricker, Ryan A. Venturelli, Alexander B. Michaud
Publikováno v:
Science (New York, N.Y.). 376(6593)
Antarctica’s fast-flowing ice streams drain the ice sheet, with their velocity modulated by subglacial water systems. Current knowledge of these water systems is limited to the shallow portions near the ice-bed interface, but hypothesized deeper gr