Joëlle Voglimacci

Joëlle Voglimacci
Université du Québec à Rimouski UQAR | uqar · Département de Biologie, Chimie et Géographie

Master of Science

About

6
Publications
281
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Citations
Education
September 2021 - September 2024
Université du Québec à Rimouski UQAR
Field of study
  • Science de l'environnement
September 2018 - October 2021
Université de Sherbrooke
Field of study
  • Geomatic and remote sensing
August 2013 - July 2017
Université du Québec à Rimouski UQAR
Field of study
  • Natural Hazards and Geomorphology

Publications

Publications (6)
Article
Full-text available
Changes in snowpack associated with climatic warming has drastic impacts on surface energy balance in the cryosphere. Yet, traditional monitoring techniques, such as punctual measurements in the field, do not cover the full snowpack spatial and temporal variability, which hampers efforts to upscale measurements to the global scale. This variability...
Poster
Full-text available
La région Arctique est particulièrement fragilisée par les changements climatiques, où le réchauffement est deux à trois fois plus élevées qu’ailleurs sur la planète. On note une diminution massive de l’étendue et de l’épaisseur de la glace de mer, ce qui prolonge la période d’eau libre de glace et qui expose les côtes aux évènements de tempêtes pr...
Thesis
Full-text available
Changes in the state of the snowpack in the context of observed global warming must be considered to improve our empirical understanding of the processes governing thermal and radiative interactions within the cryosphere. The spatiotemporal variability of the snowpack means that the data acquisition approach using traditional techniques, such as po...
Preprint
Full-text available
Changes in snowpack associated with climatic warming has drastic impacts on surface energy balance in the cryosphere. Yet, traditional monitoring techniques, such as punctual measurements in the field, do not cover the full snowpack spatial and temporal variability, which hampers efforts to upscale measurements to the global scale. This variability...
Poster
Full-text available
1 Why Should we care about snow ? The lack of in-situ data in the Arctic and the problem about accessibility to these region constraints the traditional sampling over a year. While thermodynamic models such as CROCUS or SNOWPACK worked well in alpine area, they still need further calibrations for polar applications 1. 2 How to proceed? First snow c...
Poster
Significant warming has occurred in the Arctic over the past four decades at a much faster rate then the rest of our planet. Negative anomalies of spatial and temporal trends snow and permafrost are now relatively well documented. Those trends lead to a series of strong climate-related feedbacks, which in turn contribute to the arctic amplification...

Projects

Project (1)
Project
Long-term snow monitoring in Arctic regions remains scientific challenge owing to a lack of in-situ observations necessary to constrain retrieval approaches. While there is a growing empirical understanding of snow thermophysical processes that led to the formulation of advanced multilayered snow models (CROCUS or SNOWPACK), their application to remote arctic regions requires numerous adjustments since these models were initially developed for alpine conditions. As such, the integration of remote sensing observations could greatly improve the models at various scales and by offering time series of snow state variables (i.e. depth, water equivalent and melt). Our study aims to evaluate the potential of TerraSAR-X to characterize snow microstructure as well as its spatial variability over a small arctic catchment on Qikitaruk-Herschel Island (Yukon Territory).The data used in this project come from five TerraSAR-X acquisitions in HH/VV polarization modes spanning over a period of three weeks. Coincident measurements of snow stratigraphy, temperature, density, thermal conductivity and specific surface area were conducted.