Results 41 to 50 of about 3,111 (167)
Galloping glaciers monitored from space
Eos, Transactions American Geophysical Union, 1973 ‘Galloping’ or surging glaciers, as well as nonsurging glaciers up to 40 miles in length around Mt. McKinley in south central Alaska, have been identified clearly in images returned from the first experimental Larth Resources Technology Satellite (ERTS 1).The images, also revealing the extent of sediment plumes from coastal glaciers, offer considerable
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Annals of GlaciologyCalving is the process of ice loss through the breaking of ice from a glacier’s terminus. Ice-flow models describe calving in various ways, although no consensus exists on the optimal approach.
Richard Parsons +2 more
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Monitoring Glacier Changes Using Multitemporal Multipolarization SAR Images
IEEE Transactions on Geoscience and Remote Sensing, 2014 This paper presents a processing chain for the change detection of Arctic glaciers from multitemporal multipolarization synthetic aperture radar (SAR) images. We produce terrain-corrected multilook complex covariance data by including the effects of topography on both geolocation and SAR radiometry as well as azimuth slope variations on polarization ...
Akbari, Vahid +2 more
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Multi-method monitoring of Glacier d’Argentière dynamics [PDF]
Annals of Glaciology, 2015 AbstractThe flow of Glacier d’Argentière, French Alps, has been extensively studied by glaciologists for >100 years, but high-temporal- and high-spatial-resolution monitoring of its dynamics has rarely been carried out. In this paper, the terminal part of the main glacier was selected to undertake such a survey.
Benoit, Lionel +9 more
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Tracking extinct glaciers in GLIMS
Annals of GlaciologyGlobal Land Ice Measurements from Space (GLIMS), an initiative to build and distribute a database of global glacier data, has recently begun to track glaciers that have recently disappeared.
Bruce H. Raup +5 more
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Review of SAR imaging geodesy for glacier velocity monitoring
Geodesy and GeodynamicsThe surface velocity is one of the most important characteristics of glaciers. Monitoring and mapping glacier movements are of great significance for the studies of sea-level rise, glacier mass balance and dynamics, global warming, and the management of ...
Meiling Wen, Teng Wang
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A New Method for Automatic Glacier Extraction by Building Decision Trees Based on Pixel Statistics
Remote SensingAutomatic glacier extraction from remote sensing images is the most important approach for large scale glacier monitoring. Commonly used band calculation indices to enhance glacier information are not effective in identifying shadowed glaciers and debris-
Xiao Liu +7 more
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Glacier speed-up as a possible precursor to volcanic eruptions at Mount Veniaminof, Alaska
Journal of GlaciologyIdentifying early indicators of volcanic eruptions is a fundamental part of natural hazard management but is notoriously difficult. Here we consider whether monitoring changes in glacier velocity can help.
Michael Dieter Martin +8 more
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Surge of the Bivachny Glacier in 2012–2015
Лëд и снег, 2015 The surge of the Bivachny Glacier that occurred in 2012–2015 is analyzed with the use of photographing performed from International Space Station in 2001–2015 together with data of the satellite monitoring of 1972–2000.
V. M. Kotlyakov +2 more
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Utilising seismic station internal GPS for tracking surging glacier sliding velocity
Journal of GlaciologyGlacier ice flux is a key indicator of mass balance; therefore, accurate monitoring of ice dynamics is essential. Satellite-based methods are widely used for glacier velocity measurements but are limited by satellite revisit frequency.
Wojciech Gajek +4 more
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