Zobrazeno 1 - 10
of 20
pro vyhledávání: '"William Kochtitzky"'
Publikováno v:
Arctic Science, Vol 10, Iss 1, Pp 48-68 (2024)
Various remotely sensed data, including historical aerial photographs, declassified intelligence satellite photographs, optical satellite imagery, and synthetic aperture radar data, were used to undertake the first comprehensive reconstruction of the
Externí odkaz:
https://doaj.org/article/a8d607200c4c48b781e8bbaa5f3a6e04
Autor:
Jan-Hendrik Malles, Fabien Maussion, Lizz Ultee, William Kochtitzky, Luke Copland, Ben Marzeion
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1317-1332 (2023)
Marine-terminating glaciers cover more than one-fourth of the total glacierized area in the Northern Hemisphere outside the Greenland ice sheet. It is therefore crucial to ensure an adequate representation of these glaciers when projecting large-scal
Externí odkaz:
https://doaj.org/article/432719d4240c47369aceb182569ec660
Autor:
Benoît Lauzon, Luke Copland, Wesley Van Wychen, William Kochtitzky, Robert McNabb, Dorthe Dahl-Jensen
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1333-1350 (2023)
This study provides the first comprehensive reconstruction of the dynamics of Iceberg Glacier, located on western Axel Heiberg Island, and reveals detailed observations of a complete surge for the first time in the Canadian Arctic. Historical aerial
Externí odkaz:
https://doaj.org/article/ab5d7835e7254a90a74154f09fdd93d4
Autor:
Alexander I. Culley, Mary Thaler, William Kochtitzky, Pilipoosie Iqaluk, Josephine Z. Rapp, Milla Rautio, Michio Kumagai, Luke Copland, Warwick F. Vincent, Catherine Girard
Publikováno v:
Arctic Science, Vol 9, Iss 3, Pp 720-733 (2023)
We describe limnological data sets from Thores Lake, a large ice-contact proglacial lake in northern Ellesmere Island, Nunavut (82.65°N), including longitudinal and cross transects (vertical resolution 0.03 m, horizontal resolution 100–200 m). The
Externí odkaz:
https://doaj.org/article/b5861576fb34423b923ec62be6031e23
Autor:
William Kochtitzky, Luke Copland, Michalea King, Romain Hugonnet, Hester Jiskoot, Mathieu Morlighem, Romain Millan, Shfaqat Abbas Khan, Brice Noël
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 17, Pp n/a-n/a (2023)
Abstract In Greenland, 87% of the glacierized area terminates in the ocean, but mass lost at the ice‐ocean interface, or frontal ablation, has not yet been fully quantified. Using measurements and models we calculate frontal ablation of Greenland's
Externí odkaz:
https://doaj.org/article/0310a0a2e6a240bbb27e31f726e35052
Autor:
William Kochtitzky, Luke Copland, Wesley Van Wychen, Romain Hugonnet, Regine Hock, Julian A. Dowdeswell, Toby Benham, Tazio Strozzi, Andrey Glazovsky, Ivan Lavrentiev, David R. Rounce, Romain Millan, Alison Cook, Abigail Dalton, Hester Jiskoot, Jade Cooley, Jacek Jania, Francisco Navarro
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
As glaciers terminate into the ocean, mass is lost through frontal ablation where the ice meets the ocean. Here the authors estimate decadal frontal ablation from 2000 to 2020 of 1496 glaciers in the Northern Hemisphere, and find that frontal ablatio
Externí odkaz:
https://doaj.org/article/f467204b2736417c8973691c2e1b1225
Autor:
William Kochtitzky, Luke Copland, Wesley Van Wychen, Regine Hock, David R. Rounce, Hester Jiskoot, Ted A. Scambos, Mathieu Morlighem, Michalea King, Leo Cha, Luke Gould, Paige-Marie Merrill, Andrey Glazovsky, Romain Hugonnet, Tazio Strozzi, Brice Noël, Francisco Navarro, Romain Millan, Julian A. Dowdeswell, Alison Cook, Abigail Dalton, Shfaqat Khan, Jacek Jania
Publikováno v:
Annals of Glaciology, Vol 63, Pp 143-152 (2022)
Knowledge of frontal ablation from marine-terminating glaciers (i.e., mass lost at the calving face) is critical for constraining glacier mass balance, improving projections of mass change, and identifying the processes that govern frontal mass loss.
Externí odkaz:
https://doaj.org/article/2e9f4d76155843eaa825f655346163ad
Publikováno v:
Journal of Glaciology, Vol 67, Pp 744-758 (2021)
Glacier surges are periodic episodes of mass redistribution characterized by dramatic increases in ice flow velocity and, sometimes, terminus advance. We use optical satellite imagery to document five previously unexamined surge events of Sít’ Kus
Externí odkaz:
https://doaj.org/article/e0fc42a5944441efacb819c6a75235cc
Autor:
William Kochtitzky, Dominic Winski, Erin McConnell, Karl Kreutz, Seth Campbell, Ellyn M. Enderlin, Luke Copland, Scott Williamson, Brittany Main, Hester Jiskoot
Publikováno v:
Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 264-280 (2020)
Links between climate and glacier surges are poorly understood but are required to enable prediction of surges and mitigation of associated hazards. Here, we investigate the role of snow accumulation, rain, and temperature on surge periodicity, area
Externí odkaz:
https://doaj.org/article/a403b65f0305442aa2bcd3c6cd161f5b
Autor:
William Kochtitzky, Benjamin Edwards
Publikováno v:
Journal of Glaciology, Vol 66, Pp 520-522 (2020)
Externí odkaz:
https://doaj.org/article/5e8f35bf5dd34ecfbd7dbcbcb4ceea4c