stpierre.t / albedo
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Thierry Laurent St-Pierre

Ph.D. — glaciology, remote sensing and geospatial science

Université du Québec à Trois-Rivières · RIVE and CEN research centres · supervisor: Christophe Kinnard

I study how wildfires darken the glaciers of western North America. My thesis connects three scales: the albedo signal measured by MODIS since 2002, a daily parameterisation validated against stations installed on the Peyto and Saskatchewan glaciers, and an energy balance model simulating what those glaciers would become without fire.

I also build open-source tools for remote sensing and reproducible scientific computing, and I release the code behind my processing pipelines.

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Map of wildfire-attributable PM2.5 over North America on 16 August 2023, with glaciers shown in purple.
RAQDPS-FireWork — Wildfire-attributable PM2.5, difference between the with-fire and no-fire scenarios. 16 August 2023, 13:00 UTC; glaciers in purple. Hourly animation from 1 May to 30 September, for each of the 22 summers — see the animations

10 RGI regions · 17,572 glaciers · 95,979 km² · 2002–2023

Researchin detail →

01

Wildfire, albedo and radiative balance

What wildfire aerosol deposition takes from albedo, separated from the effect of climate.

2026 – 2028 · paper 1

02

Daily albedo parameterisation

Validated against stations installed on the Peyto and Saskatchewan glaciers, Alberta.

Field 2027, 2028, 2029 · paper 2

03

Energy balance simulations with OGGM

Two worlds simulated with OGGM over 2002–2026: with fire, and without.

2029 – 2030 · paper 3