Showing 221 - 240 results of 262 for search '"glaciers"', query time: 0.04s Refine Results
  1. 221
  2. 222

    Tracking ablation and movement of icebergs with time-lapse photography at an alpine proglacial lake in Austria by Felix Bernsteiner, Andreas Kellerer-Pirklbauer, Jakob Abermann, Bernhard Hynek

    Published 2024-12-01
    “…We analyzed the movement and ablation patterns of icebergs at an ice-contact lake at Pasterze Glacier, Austria, using time-lapse images. Iceberg evolution was quantified for two timescales and related to meteorological as well as glacier ablation data from the adjacent glacier tongue. …”
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  3. 223

    Characterizing vegetation and return periods in avalanche paths using lidar and aerial imagery by Erich H. Peitzsch, Chelsea Martin-Mikle, Jordy Hendrikx, Karl Birkeland, Daniel Fagre

    Published 2024-12-01
    “…We implemented a novel approach using lidar, aerial imagery, and a random forest model to classify imagery-observed vegetation within avalanche paths in southern Glacier National Park, Montana, USA. We calculated spatially explicit avalanche return periods using a physically based spatial interpolation method and characterized the vegetation within those return period zones. …”
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  4. 224

    Changement climatique et atrophie des masses glaciaires : quelles mutations pour les paysages islandais ? by Marie Chenet, Erwan Roussel

    Published 2008-02-01
    “…The Global Warming which occurs since the end of the Little Ice Age in Iceland leads to the retreat of the glacier fronts. This retreat has induced new dynamics in the glacier foreland, especially related to glacial meltwater and post-glacial release. …”
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  5. 225

    A Computational Design Analysis of UAV’s Rotor Blade in Low-Temperature Conditions for the Defence Applications by Sreenadh Chevula, Sankeerth Chillamcharal, Satya Prasad Maddula

    Published 2021-01-01
    “…By mimicking the Siachen Glacier atmosphere conditions, the proposed rotor blade design has been analysed in CFD.…”
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  6. 226
  7. 227

    For whom and by whom is glaciology? by Alexander A. Robel, Lizz Ultee, Meghana Ranganathan, Meredith Nash

    Published 2024-01-01
    “…Glacier and ice sheet research is frequently justified on the basis of potential benefits to those communities that are most vulnerable to glacier change. …”
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  8. 228

    A data-consistent model of the last glaciation in the Alps achieved with physics-driven AI by Tancrède P. M. Leger, Guillaume Jouvet, Sarah Kamleitner, Jürgen Mey, Frédéric Herman, Brandon D. Finley, Susan Ivy-Ochs, Andreas Vieli, Andreas Henz, Samuel U. Nussbaumer

    Published 2025-01-01
    “…We tackle this issue by applying the Instructed Glacier Model, a three-dimensional model enhanced with physics-informed machine learning. …”
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  9. 229

    The glacial geomorphology of the Cordillera Darwin Icefield, Tierra del Fuego, southernmost South America by Eñaut Izagirre, Neil Glasser, Brian Menounos, Juan-Carlos Aravena, Sérgio Faria, Iñaki Antiguedad

    Published 2024-12-01
    “…Prior to this, information on outlet glacier dynamics is limited as there are few terrestrial observations and little mapped deglacial evidence, limiting our understanding of CDI dynamics on Holocene centennial to millennial timescales. …”
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  10. 230

    Evolution of Access Routes to High Mountain Refuges of the Mer de Glace Basin (Mont Blanc Massif, France) by Jacques Mourey, Ludovic Ravanel

    Published 2017-06-01
    “…Also, this research seeks to identify and explain the evolution of access trails to five refuges, located in the Mer de Glace basin (Mont Blanc massif), over more than a century. This glacier is the largest in France (L = 11.5 km, SA = 30 km²) is a major Alpine tourist attraction since 1741 and is the birthplace of mountaineering. …”
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  11. 231

    Seasonal changes of mélange thickness coincide with Greenland calving dynamics by Yue Meng, Ching-Yao Lai, Riley Culberg, Michael G. Shahin, Leigh A. Stearns, Justin C. Burton, Kavinda Nissanka

    Published 2025-01-01
    “…Here we show that such quantification can be achieved with a single field measurement: thickness of mélange at the glacier terminus. We develop a three-dimensional discrete element model of mélange along with a simple analytical model to quantify the mélange buttressing using mélange thickness data from ArcticDEM over 32 Greenland glacier termini. …”
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  12. 232

    Évolution des itinéraires d’accès aux refuges du bassin de la Mer de Glace (massif du Mont Blanc, France) by Jacques Mourey, Ludovic Ravanel

    Published 2017-06-01
    “…Also, this research seeks to identify and explain the evolution of access trails to five refuges, located in the Mer de Glace basin (Mont Blanc massif), over more than a century. This glacier is the largest in France (L = 11.5 km, SA = 30 km²) is a major Alpine tourist attraction since 1741 and is the birthplace of mountaineering. …”
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  13. 233

    Geotourism study of Ghezelowzan basin based on Fassoulas method by Hassan Jafari, mohammad taherkhani, Khadijeh Rezaii

    Published 2020-12-01
    “…By assessing landforms in this model, it was determined that the chimneys of the Jen, Behestan, dome, Darband Ghaterchi valley and salt Dome of Chehar Abad were selected as the most suitable geocites for obtaining the maximum scientific and ecological score, while the Belogice glacier landform was also the lowest.…”
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  14. 234

    Analysis of Dynamic Change and Causes of the Area of Hala Lake from 1986 to 2019 by WANG Renjun, LIU Baokang, HUANG Bingting

    Published 2021-01-01
    “…The dynamic monitoring of lake area not only contributes to the analysis of regional climate change scenarios,but also provides reliable data sources for regional water resources assessment.Based on the multi-source satellite data from 1986 to 2019,this paper extracts the water area of Hala Lake,and analyzes the inter-decadal,inter-annual and annual dynamic changes and their causes of the Hala Lake in the last 36 years in combination with the observation data of Delingha and Tuole meteorological stations around Hala Lake.The results show that:The area of Hala Lake decreased first and then increased between 1980s and 2010s,among which the area decreased slowly from 1986 to 2001,and then expanded from 2002 to 2019.The average area is the smallest in 1990s and the largest since 2010.Within a year,the lake area first decreased and then increased in the past three years.The lake area in 2019 was larger than that in the previous two years,except in April and December when was about the same as that in 2018,and the difference between the maximum and minimum monthly area in the past three years was 10.08 km<sup>2</sup> and 12.52 km<sup>2</sup> respectively.The area with obvious changes in the shoreline is located in the southeast and southwest of the Hala lake.After the analysis of meteorological and glacier data,it indicates that the climate in the Hala Lake shows a warming and humidifying trend from 1961 to 2018,with the temperature rising rate of 0.4 ℃/(10a) (R=0.296),and the precipitation increasing rate of 19.3 mm/(10a) (R=0.562,P&lt;0.01).Therefore,it can be concluded that the climate warming and humidifying and the reduction of glacier area together lead to the expansion of the lake area,which is mainly caused by precipitation.…”
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  15. 235

    Present-day mass loss rates are a precursor for West Antarctic Ice Sheet collapse by T. van den Akker, W. H. Lipscomb, G. R. Leguy, J. Bernales, C. J. Berends, W. J. van de Berg, R. S. W. van de Wal, R. S. W. van de Wal

    Published 2025-01-01
    “…We find that, for all ensemble members, the Thwaites Glacier and Pine Island Glacier collapse. Our results imply that present-day ocean thermal forcing, if held constant over multiple centuries, may be sufficient to deglaciate large parts of the WAIS, raising global mean sea level by at least a meter.…”
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  16. 236

    « An Octopus / of ice » : stratigraphies d’un poème by Aurore Clavier

    Published 2015-08-01
    “…Fascinated by living and rock surfaces, and by their hidden depths, shaped by its multiple layers of discourse, “An Octopus,” the long poem Marianne Moore dedicated to the Mount Rainier glacier and national park at the beginning of the 1920s, invites to digging into deep time, as much as to the deciphering of modernity to which criticism has often reduced its interpretations. …”
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  17. 237

    Multi-component Runoff Simulation in Arid Area Based on BP Neural Network by HAN Zichen, WANG Yi, HE Bin

    Published 2021-01-01
    “…The surface runoff of inland rivers in arid area of Northwest China is a valuable available water resource.However,due to the complexity of runoff composition,runoff simulation is complex,and it is difficult to actually utilize the water resources.This paper applies the back-propagation (BP) neural network combined with the degree-day factor of snowmelt runoff model (SRM) to analyze and simulate the runoff process of Kaidu River Basin in Xinjiang.The results show that:①The simulation accuracy is high.The daily average temperature is the main factor affecting the runoff and process in the target river basin.②Using autocorrelation coefficient method to process daily average flow series can significantly improve the simulation accuracy of annual average daily runoff,especially for daily runoff in the snow melting period (March to May) of target river basin that cannot be effectively simulated by ordinary input.This study provides a new way for the rapid simulation of runoff supplied by glacier,snow melting and precipitation in arid area of Northwest China,and an effective reference for rational utilization of water resources.…”
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  18. 238

    Geomorphology of the Caracota Valley, Western Altiplano, Northern Chile by Jan-Christoph Otto, Matias Gallardo, Luca Sitzia, Daniela Osorio, Eugenia M. Gayo

    Published 2024-12-01
    “…A complex pattern of Pleistocene and Early Holocene glacier activity is responsible for the today's landscape configuration. …”
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  19. 239

    High-resolution 4D electrical resistivity tomography and below-ground point sensor monitoring of High Arctic deglaciated sediments capture zero-curtain effects, freeze–thaw transit... by M. O. Cimpoiasu, O. Kuras, H. Harrison, P. B. Wilkinson, P. Meldrum, J. E. Chambers, D. Liljestrand, C. Oroza, S. K. Schmidt, P. Sommers, L. Vimercati, T. P. Irons, Z. Lyu, A. Solon, J. A. Bradley, J. A. Bradley

    Published 2025-01-01
    “…We installed two geoelectrical monitoring stations on the forefield of a retreating glacier in Svalbard, consisting of semi-permanent surface ERT arrays and co-located soil sensors, which track seasonal changes in soil electrical resistivity, moisture, and temperature in 3D. …”
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  20. 240

    Comparing Surface Height Used in NCAR Climate Model with That Observed by ICEsat: Effects on Skin Temperature Simulation by Menglin Jin

    Published 2009-01-01
    “…It first compares ICEsat surface height measurements over Greenland with those used by the model and reveals that the surface height of Greenland prescribed in the National Center for Atmospheric Research (NCAR) Community Climate System Model/Community Land Model version 3 (CCSM/CLM3) differs greatly from the satellite measurements from National Aeronautics and Space Administration (NASA) ICEsat at edges and central glacier regions. This deficiency, in part, leads to underestimated skin temperatures at coastal regions—the areas where significant ice sheet melt is observed. …”
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