Name
Surface cooling potential of wetlands across the Prairie Pothole Region of Canada.
Date & Time
Tuesday, May 28, 2024, 10:45 AM - 11:00 AM
Description

Wetlands provide many ecosystem services such as carbon sequestration, climate regulation and water quality enhancement. Through evaporative cooling, wetland ecosystems also play a significant role in the regulation of local and regional climate by creating microclimates, benefitting local flora and fauna. In this study, we aim to evaluate the cooling effect of wetlands by examining the differences in aerodynamic temperature (Taero) and latent heat flux (LE) between wetlands and agricultural areas in the Prairie Pothole Region of Canada. We utilized turbulent flux and meteorological data gathered through eddy covariance measurements over three years (2021-2023) from three distinct wetland sites and one agricultural site. Our preliminary findings reveal that wetlands exhibit significantly lower temperatures compared to the cropland, with maximum average monthly Taero differences ranging from 0.5°C to 6.9°C. Each wetland displays a unique cooling pattern, differing from the cropland. During the growing season, wetlands were observed to be up to 5.2°C cooler than cropland, with the maximum difference in average hourly Taero occurring at 13:00 (local time). The daytime (Taero) cooling effect at the wetlands coincides with a corresponding increase in daytime LE, with maximum differences ranging from 5.5 to 24.9 W m -2 occurring simultaneously at 13:00. These results underscore the notable cooling potential of wetlands and highlight their importance in regulating local and regional climates, ultimately contributing to the understanding of how wetland conservation, restoration and management can contribute to natural climate solutions.

Location Name
Classroom - 3110
Full Address
Carleton University - Richcraft Hall
1125 Colonel By Dr
Ottawa ON K1S 5B6
Canada
Session Type
Breakout Session