00000cam 2200000zi 4500 9.954305 CaOODSP 20260108102943 m o d f cr cn |||||||| 250820t20252025oncbd o f000 0 eng d 9780660785677 CaOODSP eng rda CaOODSP n-cn--- M41-11/183-2025E-PDF Smith, S. L., author. Impact of extreme warming in 2023 on permafrost in northwestern Canada / S.L. Smith, H.B. O'Neill, C. Duchesne, R.J.H. Parker, and J. Chartrand. Ottawa, Ontario : Geological Survey of Canada, 2025. ©2025 1 online resource (1 unnumbered page) : maps, graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier Scientific presentation ; 183e Caption title. Issued also in French under title: Impact du réchauffement extrême en 2023 sur le pergélisol dans le nord-ouest du Canada. "The preliminary results indicate that shallow ground temperatures in summer 2023 were generally warmer than 2022 and among the warmest on record at many sites in the Mackenzie Valley. Increases in thaw depth also occurred although still less than the increase that occurred in 1998. The increase in thaw at ice-rich sites that occurred between 2022 and 2023 resulted in an increase in surface settlement. More detailed analysis will provide further insights into the impacts of extreme warming in 2023. These results in combination with analysis of the impact of other extreme warm years will improve understanding of the impact of climate change and variation on permafrost environments in northern Canada"--Summary. Permafrost Research Canada, Northern. Climatic extremes Canada Observations. Atmospheric temperature Canada Observations. Geological Survey of Canada, issuing body. Impact du réchauffement extrême en 2023 sur le pergélisol dans le nord-ouest du Canada / (CaOODSP)9.958055 Scientific presentation (Geological Survey of Canada) 183e. (CaOODSP)9.820265 PDF 18.0 MB https://publications.gc.ca/collections/collection_2026/rncan-nrcan/m41-11/M41-11-183-2025-eng.pdf HTML N/A https://doi.org/10.4095/pj4kcqpyq7