Spectral albedo of 62 natural vegetation assemblages in the forest-tundra ecotone near Umiujaq, northern Quebec, Canada

Spectral albedo of various vegetation types in the forest tundra ecotone near Umiujaq (56.55◦N. 76.55◦W) were recorded in September 2015 using an SVC HR-1024 radiospectrometer. The spectral range is 346.5 to 2400 nm. Natural vegetation types reported here are Lichen, Spruce, Dwarf birch, Willows, and Varied low vegetation, classified according to the dominant species at each spot. Each of the 62 spectra are plotted in the supplementary material, Figures S4 to S9, of the publication: Domine, Bayle, Belke-Brea, Lévesque, Picard (2025) Quantified positive radiative forcing at a greening Canadian Boreal-Arctic transition over the last four decades, Remote Sensing of Environment, 322, 114715, https://doi.org/10.1016/j.rse.2025.114715 This dataset complements DOI 10.5281/zenodo.15076783 (https://zenodo.org/records/15076784). This previous dataset presented 9 averages of spectra regrouped by vegetation type. The present spectra are individual spectra and capture the variability within each vegetation type. Another complementary dataset showing photographs of 60 out of the 62 vegetation assemblages measured is available at: DOI 10.5281/zenodo.17416856