Results 21 to 30 of about 5,146 (301)

Glacier velocities across the central Karakoram [PDF]

Annals of Glaciology, 2009
AbstractOptical matching of ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) satellite image pairs is used to determine the surface velocities of major glaciers across the central Karakoram. The ASTER images were acquired in 2006 and 2007, and cover a 60×120km region over Baltoro glacier, Pakistan, and areas to the north and west.
Luke Copland, Sierra Pope, Michael P. Bishop, John F. Shroder,, Penelope Clendon, Andrew Bush, Ulrich Kamp, Yeong Bae Seong, Lewis A. Owen   +8 more
openaire   +1 more source

Influence of subglacial drainage system evolution on glacier surface motion: Haut Glacier d'Arolla, Switzerland [PDF]

, 2002
The relationship between the evolution of subglacial drainage system morphology and spatial patterns of glacier surface velocity was investigated using dye tracing experiments and ground surveying throughout the 1995 melt season at Haut Glacier d'Arolla,
Ian Willis, Sharp, M., Wohlleben, T., Peter Nienow, Mair, D., Martin Sharp, Willis, I., Trudy Wohlleben, Douglas Mair, Nienow, P.   +9 more
core   +1 more source

A Monte-Carlo error analysis for basal sliding velocity calculations [PDF]

, 2006
Since glacier beds are mostly inaccessible, numerical inversion of the surface velocity field provides a valuable method for calculating the basal shear stress and sliding velocity. However, previous theoretical studies (limited either to planar slabs or
Nienow, Peter, Chandler, D. M., Hubbard, B. P.   +2 more
core   +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

Intra-annual and intra-seasonal flow dynamics of a High Arctic polythermal valley glacier [PDF]

, 2002
Measurements of surface dynamics on polythermal John Evans Glacier, Nunavut, Canada, over two winter periods and every 7-10 days throughout two melt seasons (June-July 2000, 2001) provide new insight into spatio-temporal patterns of High Arctic glacier ...
Bingham, R.G., Nienow, P.W., Sharp, M., Nienow, Peter W., Sharp, Martin J., Bingham, RG, Nienow, PW, Sharp, MJ, Bingham, Robert George, Bingham, Robert G.   +9 more
core   +1 more source

MAPPING VELOCITY OF THE POTSDAM GLACIER, EAST ANTARCTICA USING LANDSAT-8 DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Most of the glaciers have been retreating and thinning globally due to climate change. Glacier velocity is one such important parameter of glacier dynamics, which helps to understand the mass balance.
S. D. Jawak, M. Joshi, M. Joshi, A. J. Luis, P. H. Pandit, S. Kumar, S. F. Wankhede, Anirudh T. Somadas   +7 more
doaj   +1 more source

Glacier Surface Velocity Variations in the West Kunlun Mts. with Sentinel-1A Image Feature-Tracking (2014–2023)

Remote Sensing, 2023
Glacier velocity is a crucial parameter in understanding glacier dynamics and mass balance, especially in response to climate change. Despite numerous studies on glaciers in the West Kunlun Mts., there is still insufficient knowledge about the details of
Zhenfeng Wang, Tanguang Gao, Yulong Kang, Wanqin Guo, Zongli Jiang   +4 more
doaj   +1 more source

Hydrological controls on diurnal ice flow variability in valley glaciers [PDF]

, 2005
This paper uses a combination of field data and three-dimensional modeling to investigate the spatial variability in basal conditions required to induce observed fluctuations in diurnal ice velocity at Haut Glacier d'Arolla, Switzerland.
Hubbard, A. L., Sharp, M. J., Chandler, D. M., Mair, D. W. F., Nienow, P. W., Willis, I. C., Hubbard, B. P.   +6 more
core   +1 more source

Crevasses triggered on Pine Island Glacier by drilling through an exceptional melt layer [PDF]

, 2010
The basic theory of crevasse formation suggests that crevasses initiate at or near the surface. However, due to variations in stress with depth, it has been suggested that it is possible for crevasses to initiate at depths of 10–30m.
Julian B. T. Scott, Vaughan, David, Scott, Julian B.T., Robert G. Bingham, Andrew M. Smith, Smith, Andrew, Smith, Andrew M., Bingham, Robert, Vaughan, David G., Scott, Julian, Bingham, Robert G., David G. Vaughan   +11 more
core   +1 more source

STEREO-PHOTOGRAMMETRIC MEASUREMENT OF SPATIO-TEMPORAL VELOCITY FIELDS AT LANGE GLACIER, KING GEORGE ISLAND [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
A network consisting of six cameras was set up on both sides of Lange Glacier on King George Island, Antarctica, for a period of two years to monitor changes in the glacier’s motion behaviour.
E. Schwalbe, R. Koschitzki, E. Johnson, D. F. Mojica Moncada, D. F. Mojica Moncada, B. Schröter, C. Cardenas, G. Casassa, H.-G. Maas   +8 more
doaj   +1 more source