Results 21 to 30 of about 1,001 (183)
Structural provinces of the Ross Ice Shelf, Antarctica
Annals of Glaciology, 2017 The surface of the Ross Ice Shelf (RIS) is textured by flow stripes, crevasses and other features related to ice flow and deformation. Here, moderate resolution optical satellite images are used to map and classify regions of the RIS characterized by ...
Christine M. LeDoux +4 more
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Effects of geometry on the seismic wavefield of Alpine glaciers
Annals of Glaciology, 2019 Passive seismology allows measurement of the structure of glaciers and ice sheets. However, most techniques used so far in this context are based on horizontally homogeneous media where parameters vary only with depth (1-D approximations), which are ...
Lukas E. Preiswerk +3 more
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Annals of Glaciology, 2019 Changing rates of water input can affect both the flow of glaciers and ice sheets and their propensity to crevasse. Here we examine geodetic and seismic observations during two substantial (10–18-times background velocity) rain-induced glacier ...
Samuel Taylor-Offord +3 more
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Journal of Glaciology, 2020 On 30 September 2017, an Air France Airbus A380-800 suffered a failure of its fourth engine while over Greenland. This failure resulted in the loss of the engine fan hub, fan blades and surrounding structure.
Kenneth D. Mankoff +14 more
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The spatial distribution of potholes in Uusimaa, southern Finland [PDF]
Bulletin of the Geological Society of Finland, 1996 It has been assumed, on the basis of the distribution of potholes in the bedrock near eskers, that they were eroded by subglacial meltwaters connected with the formation of eskers.
T. Jantunen
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Recent structural evolution of Forni Glacier tongue (Ortles-Cevedale Group, Central Italian Alps)
Journal of Maps, 2017 Structural glaciology yields important details about the evolution of glacier dynamics in response to climate change. The maps provided here document the occurrence and evolution of brittle and ductile structures on the tongue of Forni Glacier, Ortles ...
Roberto Sergio Azzoni +8 more
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Controls on Ice Cliff Distribution and Characteristics on Debris‐Covered Glaciers
Geophysical Research Letters, 2023 Ice cliff distribution plays a major role in determining the melt of debris‐covered glaciers but its controls are largely unknown. We assembled a data set of 37,537 ice cliffs and determined their characteristics across 86 debris‐covered glaciers within ...
Marin Kneib +13 more
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An assessment of surge-induced crevassing and the formation of crevasse squeeze ridges [PDF]
Journal of Geophysical Research, 2011 [1] Evidence for extensive crevassing is preserved on the deglaciated forelands of many surging glaciers as crevasse squeeze ridges (CSRs). At some point these crevasses make direct connection with the bed in order to become sediment filled, and full-depth connections have been inferred from turbid water up-wellings in crevasses and the formation of ...
Brice R. Rea, David J. A. Evans
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The Anatomical Record, EarlyView.Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe +4 more
wiley +1 more source
Crevasse effects on glacier surface temperature from thermal imagery
Journal of GlaciologyThermal imagery was collected for 26 hours over a crevassed region within the accumulation zone of the Haupapa/Tasman Glacier, New Zealand. During the night, the imaged snow surfaces associated with crevasses cooled slower than non-crevassed surfaces ...
Tim Kerr +6 more
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