Search results for "Glaciers"
showing 3 items of 3 documents
Rétro-observation des dynamiques paysagères alpines à partir de photographies anciennes. Apports de la mono-photogrammétrie
2016
International audience; Les paysages alpins sont des indicateurs de variations climatiques reconnus à travers leurs dynamiques géomorphologiques et glaciaires. Dans ce domaine, les documents anciens (photographies, gravures, peintures...) constituent des sources de données importantes, utilisées à des fins de rétro-observations. Les méthodes classiques consistent, le plus souvent, à les exploiter dans des travaux descriptifs, faisant ensuite l'objet de retranscriptions cartographiques naturalistes. Aujourd'hui, l'apport de méthodes innovantes de traitement, et en particulier celles fondées sur la mono-photogrammétrie, offrent de nouvelles perspectives. Pour étudier ces dynamiques géomorphol…
A particle based simulation model for glacier dynamics
2013
This publication is contribution number 22 of the Nordic Centre of Excellence SVALI, “Stability and Variations of Arctic Land Ice”, funded by the Nordic Top-level Research Initiative (TRI). The work has been supported by the SVALI project through the University of Lapland, Arctic Centre, and through the University Centre in Svalbard. Funding was also provided by the Conoco-Phillips and Lunding High North Research Program (CRIOS: Calving Rates and Impact on Society). A particle-based computer simulation model was developed for investigating the dynamics of glaciers. In the model, large ice bodies are made of discrete elastic particles which are bound together by massless elastic beams. These…
Rétro-observation des processus de décrue glaciaire à partir de peintures. Apports de la mono-photogrammétrie
2019
Alpine landscapes are indicators of climatic variations recognized through their geomorphological and glacial dynamics. Inthis field, the old documents (photographs, engravings, paintings…) constitute important data sources, used for the purposesof retro-observations. The classical methods consist, most often, to exploit them in descriptive works then being the subject ofnaturalistic cartographic retranscriptions. Today the contribution of innovative methods of treatment, such as mono-photogrammetry,offer new perspectives. It is thus possible to extract quantitative information from qualitative archives. This approachallows, in addition to a conventional landscape analysis, to project the i…