منابع مشابه
Calving processes and the dynamics of calving glaciers
Calving of icebergs is an important component of mass loss from the polar ice sheets and glaciers in many parts of the world. Calving rates can increase dramatically in response to increases in velocity and/or retreat of the glaciermargin, with important implications for sea level change. Despite their importance, calving and related dynamic processes are poorly represented in the current gener...
متن کاملModelling calving and sliding of Svalbard outlet glaciers
Vallot, D. 2017. Modelling calving and sliding of Svalbard outlet glaciers. Spatio-temporal changes and interactions. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1606. 82 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0170-9. Future sea level rise associated to global warming is one of the greatest societal and environmental ...
متن کاملCalving rates at tidewater glaciers vary strongly with ocean temperature
Rates of ice mass loss at the calving margins of tidewater glaciers (frontal ablation rates) are a key uncertainty in sea level rise projections. Measurements are difficult because mass lost is replaced by ice flow at variable rates, and frontal ablation incorporates sub-aerial calving, and submarine melt and calving. Here we derive frontal ablation rates for three dynamically contrasting glaci...
متن کاملRapid submarine melting of the calving faces of West Greenland glaciers
Widespread glacier acceleration has been observed in Greenland in the past few years1–4 associated with the thinning of the lower reaches of the glaciers as they terminate in the ocean5–7. These glaciers thin both at the surface, from warm air temperatures, and along their submerged faces in contact with warm ocean waters8. Little is known about the rates of submarine melting9–11 and how they m...
متن کاملEstimation of Ice Flow Velocity of Calving Glaciers Using Sar Interferometry and Feature Tracking
Changes in velocity of the large outlet glaciers and ice streams in Antarctica are important for ice sheet mass balance and hence sea level. The ice flow velocity is also a critical variable in understanding glacier dynamics. Polar Record Glacier, with a calved iceberg in front, is about 50 km to the west of the Zhongshan Station, East Antarctica. SAR interferometry can detect the surface displ...
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ژورنال
عنوان ژورنال: Journal of the Japanese Society of Snow and Ice
سال: 2002
ISSN: 0373-1006,1883-6267
DOI: 10.5331/seppyo.64.649