Zobrazeno 1 - 10
of 87
pro vyhledávání: '"M. Torre Jorgenson"'
Autor:
Benjamin M. Jones, Mikhail Z. Kanevskiy, Yuri Shur, Benjamin V. Gaglioti, M. Torre Jorgenson, Melissa K. Ward Jones, Alexandra Veremeeva, Eric A. Miller, Randi Jandt
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract In 2007, the Anaktuvuk River fire burned more than 1000 km2 of arctic tundra in northern Alaska, ~ 50% of which occurred in an area with ice-rich syngenetic permafrost (Yedoma). By 2014, widespread degradation of ice wedges was apparent in t
Externí odkaz:
https://doaj.org/article/17c5832193da45dbae9333f30505218e
Autor:
Donald A. Walker, Martha K. Raynolds, Mikhail Z. Kanevskiy, Yuri S. Shur, Vladimir E. Romanovsky, Benjamin M. Jones, Marcel Buchhorn, M. Torre Jorgenson, Jozef Šibík, Amy L. Breen, Anja Kade, Emily Watson-Cook, Georgy Matyshak, Helena Bergstedt, Anna K. Liljedahl, Ronald P. Daanen, Billy Connor, Dmitry Nicolsky, Jana L. Peirce
Publikováno v:
Arctic Science, Vol 8, Iss 4, Pp 1040-1066 (2022)
Environmental impact assessments for new Arctic infrastructure do not adequately consider the likely long-term cumulative effects of climate change and infrastructure to landforms and vegetation in areas with ice-rich permafrost, due in part to lack
Externí odkaz:
https://doaj.org/article/8ff4be34f7ae408ab6bda78367d7d78b
Autor:
Mikhail Kanevskiy, Yuri Shur, Nancy H. Bigelow, Kevin L. Bjella, Thomas A. Douglas, Daniel Fortier, Benjamin M. Jones, M. Torre Jorgenson
Publikováno v:
Frontiers in Earth Science, Vol 9 (2022)
Recent excavation in the new CRREL Permafrost Tunnel in Fox, Alaska provides a unique opportunity to study properties of Yedoma — late Pleistocene ice- and organic-rich syngenetic permafrost. Yedoma has been described at numerous sites across Inter
Externí odkaz:
https://doaj.org/article/3db6baa570a340dc96007c6f10422fa6
Autor:
Yuri Shur, Daniel Fortier, M. Torre Jorgenson, Mikhail Kanevskiy, Lutz Schirrmeister, Jens Strauss, Alexander Vasiliev, Melissa Ward Jones
Publikováno v:
Frontiers in Earth Science, Vol 9 (2022)
Since the discovery of frozen megafauna carcasses in Northern Siberia and Alaska in the early 1800s, the Yedoma phenomenon has attracted many Arctic explorers and scientists. Exposed along coastal and riverbank bluffs, Yedoma often appears as large m
Externí odkaz:
https://doaj.org/article/ee8786f34f204efda0388efbcbd413a6
Autor:
Weixing Zhang, Anna K. Liljedahl, Mikhail Kanevskiy, Howard E. Epstein, Benjamin M. Jones, M. Torre Jorgenson, Kelcy Kent
Publikováno v:
Remote Sensing, Vol 12, Iss 7, p 1085 (2020)
State-of-the-art deep learning technology has been successfully applied to relatively small selected areas of very high spatial resolution (0.15 and 0.25 m) optical aerial imagery acquired by a fixed-wing aircraft to automatically characterize ice-we
Externí odkaz:
https://doaj.org/article/a2501d48308f4096b3d258ea1813c745
Publikováno v:
Remote Sensing, Vol 10, Iss 8, p 1280 (2018)
The Yukon-Kuskokwim Delta (YKD) is the largest delta in western North America and its productive coastal ecosystems support globally significant populations of breeding birds and a large indigenous population. To quantify past landscape changes as a
Externí odkaz:
https://doaj.org/article/4e2713630bc04319ad1e7c81a0c49513
Publikováno v:
Remote Sensing, Vol 10, Iss 8, p 1305 (2018)
Rapid warming has occurred over the past 50 years in Arctic Alaska, where temperature strongly affects ecological patterns and processes. To document landscape change over a half century in the Arctic National Wildlife Refuge, Alaska, we visually int
Externí odkaz:
https://doaj.org/article/c511b3ea126f4924b9f9ed6c091f5c39
Autor:
Gerald V. Frost, Tracy Christopherson, M. Torre Jorgenson, Anna K. Liljedahl, Matthew J. Macander, Donald A. Walker, Aaron F. Wells
Publikováno v:
Remote Sensing, Vol 10, Iss 8, p 1312 (2018)
Ice-wedge polygons are widespread and conspicuous surficial expressions of ground-ice in permafrost landscapes. Thawing of ice wedges triggers differential ground subsidence, local ponding, and persistent changes to vegetation and hydrologic connecti
Externí odkaz:
https://doaj.org/article/5ab69278b8d142a0ab182754dcbc53e3
Autor:
Matthew A. Whitley, Gerald V. Frost, M. Torre Jorgenson, Matthew J. Macander, Chris V. Maio, Samantha G. Winder
Publikováno v:
Remote Sensing, Vol 10, Iss 2, p 258 (2018)
Western Alaska’s Yukon-Kuskokwim Delta (YKD) spans nearly 67,200 km2 and is among the largest and most productive coastal wetland ecosystems in the pan-Arctic. Permafrost currently forms extensive elevated plateaus on abandoned floodplain deposits
Externí odkaz:
https://doaj.org/article/251914f1c44d49c3ac39ad9fe5e9386d
Autor:
Neal J. Pastick, Patrick F. Sullivan, Roman J. Dial, Rebecca E. Hewitt, M. Torre Jorgenson, Colin T. Maher
Publikováno v:
Ecography. 44:1710-1722