Joëlle VoglimacciUniversité de Montréal | UdeM · Department of Geography
Joëlle Voglimacci
Master of Science
About
6
Publications
392
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
0
Citations
Citations since 2017
Introduction
Skills and Expertise
Education
September 2018 - October 2021
August 2013 - July 2017
Publications
Publications (6)
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...
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...
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...
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...
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...
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...
Network
Projects
Project (1)
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.
