Results 41 to 50 of about 6,390,963 (305)

'Calving laws', 'sliding laws' and the stability of tidewater glaciers [PDF]

, 2007
A new calving criterion is introduced, which predicts calving where the depth of surface crevasses equals ice height above sea level. Crevasse depth is calculated from strain rates, and terminus position and calving rate are therefore functions of ice ...
Hulton, N R J, Mottram, Ruth H., Benn, Douglas Iain, Mottram, R H, Hulton, Nicholas R. J., Benn, Douglas I., Benn, Douglas Iain; id_orcid   +6 more
core   +1 more source

Airborne radar evidence for tributary flow switching in Institute Ice Stream, West Antarctica: implications for ice sheet configuration and dynamics [PDF]

, 2015
Despite the importance of ice streaming to the evaluation of West Antarctic Ice Sheet (WAIS) stability we know little about mid- to long-term dynamic changes within the Institute Ice Stream (IIS) catchment.
Martin J. Siegert, Hugh F. J. Corr, Corr, Hugh, Bingham, RG, Woodward, John, Ross, Neil, Ross, N, Dunning, SA, Corr, Hugh F.J., Winter, K, Siegert, MJ, Robert G. Bingham, Winter, Kate, Dunning, Stuart, John Woodward, Neil Ross, Siegert, Martin, Corr, HFJ, Kate Winter, Dunning, Stuart A., Siegert, Martin J., Stuart A. Dunning, Bingham, Robert G., Woodward, J   +23 more
core   +1 more source

OBSERVATIONS OF CONTINUOUS INSTABILITY FOR SCAR INLET ICE SHELF, ANTARCTIC PENINSULA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Observation of the evolving instability of ice shelves plays a very important role in global change research. Following the suddenly large-scale collapse of the Larsen B Ice Shelf in the Antarctic Peninsula in 2002, the evolving instability for its ...
Y. Li, Y. Li, G. Qiao, G. Qiao, X. Yuan, X. Yuan   +5 more
doaj   +1 more source

The distribution of basal motion beneath a High Arctic polythermal glacier [PDF]

, 2003
The longitudinal pattern of surface velocity of a large, predominantly colds polythermal glacier (John Evans Glacier, Ellesmere Island, Canada) was measured over summer and winter periods.
Nienow, Peter W., Copland, L, Nienow, P, Bingham, RG, Sharp, M.J., Bingham, Robert George, Copland, L., Copland, Luke, Bingham, R.G., Sharp, Martin J., Sharp, MJ, Nienow, P., Bingham, Robert G.   +12 more
core   +1 more source

Seismic Noise Interferometry and Distributed Acoustic Sensing (DAS): Inverting for the Firn Layer S‐Velocity Structure on Rutford Ice Stream, Antarctica

Journal of Geophysical Research - Earth Surface, 2022
Firn densification profiles are an important parameter for ice‐sheet mass balance and palaeoclimate studies. One conventional method of investigating firn profiles is using seismic refraction surveys, but these are difficult to upscale to large‐area ...
Wen-Xu Zhou, A. Butcher, A. Brisbourne, S. Kufner, J. Kendall, A. Stork   +5 more
semanticscholar   +1 more source

A hierarchical network densification approach for reconstruction of historical ice velocity fields in East Antarctica

Journal of Glaciology, 2023
Accurate ice flow velocity data are essential for studying the mass balance of the Antarctic ice sheet. However, there is a lack of ice velocity maps of 1960s–80s in basin-wide regions or the entire ice sheet.
Tiantian Feng, Yanjun Li, Kangle Wang, Gang Qiao, Yuan Cheng, Xiaohan Yuan, Shulei Luo, Rongxing Li   +7 more
doaj   +1 more source

Climatic control on seasonal variations in mountain glacier surface velocity

The Cryosphere, 2023
. Accurate measurements of ice flow are essential to predict future changes in glaciers and ice caps. Glacier displacement can in principle be measured on the large scale by cross-correlation of satellite images. At weekly to monthly scales, the expected
U. Nanni, D. Scherler, F. Ayoub, R. Millan, F. Herman, J. Avouac   +5 more
semanticscholar   +1 more source

The Surface Velocity Response of a Tropical Glacier to Intra and Inter Annual Forcing, Cordillera Blanca, Peru

Remote Sensing, 2021
We used synthetic aperture radar offset tracking to reconstruct a unique record of ice surface velocities for a 3.2 year period (15 January 2017–6 April 2020), for the Palcaraju glacier located above Laguna Palcacocha, Cordillera Blanca, Peru ...
Andrew Kos, Florian Amann, Tazio Strozzi, Julian Osten, Florian Wellmann, Mohammadreza Jalali, Anja Dufresne   +6 more
doaj   +1 more source

Velocity Field and Turbulence Structure around Spur Dikes with Different Angles of Orientation under Ice Covered Flow Conditions

Water, 2021
Spur dikes are well-known structures that are widely used in rivers and coastal regions. Depending on their types, sizes, and orientation angles, spur dikes can substantially change flow characteristics.
R. Jafari, J. Sui
semanticscholar   +1 more source

Influence of anisotropy on velocity and age distribution at Scharffenbergbotnen blue ice area [PDF]

The Cryosphere, 2014
We use a full-Stokes thermo-mechanically coupled ice-flow model to study the dynamics of the glacier inside Scharffenbergbotnen valley, Dronning Maud Land, Antarctica.
T. Zwinger, M. Schäfer, C. Martín, J. C. Moore   +3 more
doaj   +1 more source