Results 51 to 60 of about 1,807 (161)

Apparent Short-Term Glacier Velocity Variations [PDF]

Journal of Glaciology, 1985
Abstract In connection with a glacier-hydrological project at a sub-polar glacier in West Greenland, short-term glacier velocity variations were measured. Both the horizontal and the vertical velocity components showed distinct diurnal variations.
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Determination of the Three-Dimensional Velocity Field in a Glacier [PDF]

Journal of Glaciology, 1971
AbstractA method for the determination of the three-dimensional velocity field in a glacier is described, Measurements in three or more bore holes arranged in an appropriate array are needed for its application. Surface motion measured by triangulation and tape measure, bore-hole profiles given by inclinometry, and the geometry of the bed are all ...
openaire   +1 more source

Discovery of the Fastest Ice Flow along the Central Flow Line of Austre Lovénbreen, a Poly-thermal Valley Glacier in Svalbard

Remote Sensing, 2019
Ice flow velocity is a sensitive indicator of glacier variations both controlling and representing the delivery of ice and affecting the future stability of ice masses in a warming climate.
Songtao Ai, Xi Ding, Jiachun An, Guobiao Lin, Zemin Wang, Ming Yan   +5 more
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Understanding the point mass balance and surface ice velocity for the debris-covered glacier, Panchi II, western Himalaya (India)

Results in Earth Sciences
Debris-covered glaciers with complex morphological features, including ice cliffs and supraglacial lakes, remain relatively understudied in the Himalaya.
Sarvagya Vatsal, Mohd Farooq Azam, Anshuman Bhardwaj, Arindan Mandal, Raaj Ramsankaran, Mohd Soheb, Saumya G. Kutty, Chetan Singh, Somdutta Mishra, Alagappan Ramanathan, Ishmohan Bahuguna, Purvee Joshi, N. Janardhana Raju   +12 more
doaj   +1 more source

Monitoring and Analyzing Mountain Glacier Surface Movement Using SAR Data and a Terrestrial Laser Scanner: A Case Study of the Himalayas North Slope Glacier Area

Remote Sensing, 2019
The offset tracking technique based on synthetic aperture radar (SAR) image intensity information can estimate glacier displacement even when glacier velocities are high and the time interval between images is long, allowing for the broad use of this ...
Jinghui Fan, Qun Wang, Guang Liu, Lu Zhang, Zhaocheng Guo, Liqiang Tong, Junhuai Peng, Weilin Yuan, Wei Zhou, Jin Yan, Zbigniew Perski, Joaquim João Sousa   +11 more
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Monitoring glacier surface velocity in Zanskar Valley, India: Insights from DInSAR-based 2D velocity estimation

Results in Earth Sciences
Glacier surface velocity plays a crucial role in understanding glacier dynamics, climate change impacts, and water resource management. In this study, Differential Synthetic Aperture Radar Interferometry (DInSAR) and geoinformatics techniques were ...
Shubham Bhattacharjee, Rahul Dev Garg, Arvind Chandra Pandey   +2 more
doaj   +1 more source

3D Velocity Time Series Inversion of Petermann Glacier Using Ascending and Descending Sentinel-1 Images

Remote Sensing
Three-dimensional (3D) glacier velocities capture the full dynamic behavior of ice masses. For marine-terminating glaciers, acquiring 3D velocity fields is particularly critical for quantifying ice discharge into the ocean, assessing the stability of ...
Zongze Li, Yawei Zhao, Yanlei Du, Haimei Mo, Jinsong Chong   +4 more
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Characterizing the May 2015 Karayaylak Glacier surge in the eastern Pamir Plateau using remote sensing

Journal of Glaciology, 2016
We investigate an internal surge of Karayaylak Glacier, which was reported by the media in May 2015. To differentiate the May 2015 glacier surge from other glacier advances, we surveyed changes in velocity, crevasses and glacier area using Landsat 8 OLI ...
DONGHUI SHANGGUAN, SHIYIN LIU, YONGJIAN DING, WANQIN GUO, BAIQING XU, JUNLI XU, ZONGLI JIANG   +6 more
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High-Temporal-Resolution Three-Dimensional Glacier Velocity Time Series and Their Implications for Glacier Dynamic Processes in Mt. Tomur, Tian Shan

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
High-temporal-resolution three-dimensional (3-D) glacier velocity measurements are essential for unraveling complex ice dynamics, enabling precise monitoring of climate-driven glacier response.
Jiawen Chang, Ninglian Wang, Qian Liang, Sugang Zhou, Yujie Zhang, Xuewen Yang, Shuai Huang   +6 more
doaj   +1 more source

Surface Ice Velocity near the Terminus of Grey Glacier in the Southern Patagonian Icefield, Based on Direct Field Measurements

Geosciences
Glacier mass balance and ice flow dynamics, strongly influenced by climatic variability, topography, and geological–structural controls, can be precisely characterized through in situ GPS measurements of surface ice velocity, though such data remain ...
Roberto García-Esteban
doaj   +1 more source