Zobrazeno 1 - 10
of 342
pro vyhledávání: '"arctic glaciology"'
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1449-1465 (2023)
The rapid formation of glacial lakes is one of the most conspicuous landscape changes caused by atmospheric warming in glacierised regions. However, relatively little is known about the history and current state of glacial lakes in the High Arctic. T
Externí odkaz:
https://doaj.org/article/70fdc42f945b40518b2f40a433f14ae6
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
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1225-1240 (2023)
Albedo is a key factor in modulating the absorption of solar radiation on ice surfaces. Satellite measurements have shown a general reduction in albedo across the Greenland ice sheet over the past few decades, particularly along the western margin of
Externí odkaz:
https://doaj.org/article/f56ee0aac378482f9eea6a14b3b2e8c8
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1097-1108 (2023)
Air temperature inversions, a situation in which atmospheric temperature increases with height, are key components of the Arctic planetary boundary layer. The present study investigates the spatial and temporal variations of temperature inversions ov
Externí odkaz:
https://doaj.org/article/5d144e363b3b43f1ba171cf1cd0e8e17
Publikováno v:
Journal of Glaciology, Vol 69, Pp 966-980 (2023)
Calculation of the calving loss of tidewater glaciers depends on accurate bedrock information. In regional to global-scale projections of future tidewater glacier evolution this dependence is problematic. Bedrock topographies are often unknown and ca
Externí odkaz:
https://doaj.org/article/3abb186815b14832b8f10dfd4266b999
Publikováno v:
Journal of Glaciology, Vol 69, Pp 997-1010 (2023)
Using historical and recent aerial photography and structure from motion (SfM) multiview stereo (MVS) techniques, we reconstruct the 1959 and 2018 ice surface topography and determine the geodetic mass balance of Bowman Glacier, a small mountain glac
Externí odkaz:
https://doaj.org/article/34e475ea3a7b41978e1ba30d3e30cc7c
Publikováno v:
Journal of Glaciology, Vol 69, Pp 433-444 (2023)
Mass loss at the Greenland Ice Sheet is influenced by atmospheric processes controlling its surface mass balance, and by submarine melt and calving where glaciers terminate in fjords. There, an ice mélange – a composite matrix of calved ice bergs
Externí odkaz:
https://doaj.org/article/bb2130b5821f4a389ccdfe4a3965a011
Publikováno v:
Journal of Glaciology, Vol 69, Pp 57-70 (2023)
Arctic ice shelves have declined over the past several decades, one of many indications of a rapidly changing cryosphere. Here we use a collection of off-nadir Landsat 8 images, a 1978 digital orthophotograph and photogrammetrically derived DEM, sate
Externí odkaz:
https://doaj.org/article/94aab07f77d04a4e936582a734b99733
Autor:
Harold Lovell, Edward J. Fleming
Publikováno v:
Journal of Glaciology, Vol 69, Pp 141-152 (2023)
We assess the evolution of glaciological structures during the 2003–05 surge in the Paulabreen glacier system, Svalbard. Glaciological structures on the glacier surface were mapped using aerial photographs captured in the early stages of the surge
Externí odkaz:
https://doaj.org/article/c14c5f54a9794ee8b15c04d3043555d1
Autor:
Oskar Glowacki
Publikováno v:
Journal of Glaciology, Vol 68, Pp 1185-1196 (2022)
Iceberg calving is one of the major mechanisms of ice loss from tidewater glaciers and ice sheets, but obtaining accurate estimates of ice discharge that are both continuous and accurate is a challenging task. Recent results have demonstrated the eff
Externí odkaz:
https://doaj.org/article/d9f39f2f1fae41f7b895c555e343e68c