Results 21 to 30 of about 1,807 (161)
Glacier Velocity Monitoring by Maximum Likelihood Texture Tracking [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2009 The performance of a tracking algorithm considering remotely sensed data strongly depends on a correct statistical description of the data, i.e., its noise model. The objective of this paper is to introduce a new intensity tracking algorithm for synthetic aperture radar (SAR) data, considering its multiplicative speckle/noise model.
Esra Erten +3 more
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The dynamics of Trooz Glacier, Antarctic Peninsula, by satellite remote sensing data
Український антарктичний журнал, 2023 The paper studies the ice cover of the Trooz Glacier, Kyiv Peninsula, West Antarctic Peninsula. The main goal of the work is to study the velocity dynamics of various parts of the Trooz Glacier in 2016–2022 based on remote sensing data and to compare ...
S. Kadurin, V. Kadurin
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Heterogeneity in topographic control on velocities of Western Himalayan glaciers [PDF]
Scientific Reports, 2018 AbstractStudies of the seasonal and annual patterns of glacier velocities improve our understanding of the ice volume, topography, responses to climate change, and surge events of glaciers. Such studies are especially relevant and equally rare for the Himalayan glaciers, which supply many rivers that sustain some of the most heavily populated ...
Lydia Sam +4 more
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Seven-year variation in glacier surface velocity at Narsap Sermia in Southwest Greenland
GIScience & Remote Sensing, 2023 Glacier velocity is a critical factor closely related to ice dynamics of the Greenland ice sheet (GrIS). We present variations of ice velocity using space-based synthetic aperture radar (SAR) observations from July 2013 to September 2020.
Seong-Woo Jung, Sang-Hoon Hong
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Remote Sensing, 2022 Offset tracking technology is widely studied to evaluate glacier surface displacements. However, few studies have used a cross-platform to this end. In this study, two heterogeneous data sources, Sentinel-1 and Landsat 8, from January 2019 to January ...
Chengsheng Yang +5 more
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Improved records of glacier flow instabilities using customized NASA autoRIFT (CautoRIFT) applied to PlanetScope imagery [PDF]
The CryosphereEn masse application of feature tracking algorithms to satellite image pairs has produced records of glacier surface velocities with global coverage, revolutionizing the understanding of global glacier change.
J. Liu +3 more
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MAPPING SURFACE FLOW VELOCITIES OF SIACHEN AND GANGOTRI GLACIERS USING TERRASAR-X AND SENTINEL-1A DATA BY INTENSITY TRACKING [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 Glaciers are melting at an alarming rate due to global warming. Two major glaciers of India viz. Gangotri and the Siachen are chosen for the velocity mapping. The line-of-sight (LOS) velocity fields are derived using X-band TerraSAR-X and C-band Sentinel-
P. Lal, D. S. Vaka, Y. S. Rao
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Land- to lake-terminating transition triggers dynamic thinning of a Bhutanese glacier [PDF]
The Cryosphere, 2022 There have been rapid increases in both the number and expansion of the proglacial lakes across High Mountain Asia. However, the relationship between proglacial lakes and glacier dynamics remains unclear in the Himalayan region.
Y. Sato +4 more
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The Sliding Velocity of Athabasca Glacier, Canada [PDF]
Journal of Glaciology, 1970 AbstractA method of estimating siding velocity is presented. It rests on few assumptions, one of which is that longitudinal strain-rate varies linearly with depth. The flow law of ice is not used. To apply it, the sliding velocity at one point must be known.
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International Journal of Digital Earth, 2023 The anomalous movements of glaciers cause disasters, such as debris flows and landslides. It is very important to assess the glacier movements and their future trends. Glacier velocity refers to movement process. The current research aims to analyse past
Yali Zhang +6 more
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