Annual Tree Species (1984-2022)

In this dataset, we share maps of annual dominant tree species (also known as leading tree species) from 1984-2022 covering the entirety of Canada's 650 Mha forested ecosystems using Landsat time-series imagery at a 30-m spatial resolution. It is developed within the framework of Canada’s National Terrestrial Ecosystem Monitoring System (NTEMS). Classifications are based on regionally representative Random Forests model using local training samples from Canada's National Forest Inventory (Hermosilla et al., 2024). Descriptive metrics provide information on spectral, geographic, climatic, and topographic characteristics. Initial annual tree species classifications were subjected to a time series post-classification process using the forward-backward Hidden Markov Model to improve the temporal consistency of tree species transitions within the time series. Assessment of the annual species maps using independent validation data resulted in an overall accuracy of 86.1% ± 0.14% (95%-confidence interval). These data allow consistent comparison of trends and rates of change in tree species composition nationally and across regions using a common time frame, spatial resolution, and analytical approach. Hermosilla, T., Wulder, M.A., White, J.C., Coops, N.C., Bater, C.W., Hobart, G.W., 2024. Characterizing long-term tree species dynamics in Canada's forested ecosystems using annual time series remote sensing data. Forest Ecology and Management, 122313. https://doi.org/10.1016/j.foreco.2024.122313 (Hermosilla et al. 2024)

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Champ Valeur
Dernière modification avril 17, 2026, 19:01 (TU)
Créé le avril 17, 2026, 19:01 (TU)
contact_email mike.wulder@canada.ca
contact_person {"en": "Government of Canada; Natural Resources Canada; Canadian Forest Service, Pacific Forestry Centre, Forest Geomatics", "fr": "Gouvernement du Canada; Ressources naturelles Canada; Service canadien des forêts Centre de foresterie du Pacifique"}
criticality_level []
data_dictionary EPSG:3978,http://www.epsg-registry.org,1.0
geographic_scope []
open_canada_collection fgp
open_canada_date_published 2023-01-01 00:00:00
open_canada_keywords {"en": ["National Terrestrial Ecosystem Monitoring System (NTEMS)", "Forests"], "fr": ["National Terrestrial Ecosystem Monitoring System (NTEMS)", "Forêt"]}
open_canada_subject ["form_descriptors", "nature_and_environment", "science_and_technology"]
sensitivity_level unrestricted
title_fr Essences d'Arbres (1984-2022)
update_frequency as_needed