Reflectance measurements - CCT. This dataset contains spectral reflectance measurements collected in situ during the peak of the summer growing season (July) for Bistorta vivipara, Cassiope tetragona, Oxyria digyna, Saxifraga oppositifolia, Carex rupestris, Dryas octopetala, and Salix polaris. Reflectance data are fundamental for assessing the optical properties of the vegetation and deriving key spectral indices (e.g., Normalized Difference Vegetation Index (NDVI), PRI).

This dataset compiles measurements of gas exchange and associated microclimatic conditions for two dominant dwarf shrub species (Dryas octopetala and Salix polaris) and bare soil control plots. It is important to note that the presented data do not derive from continuous monitoring (e.g., Eddy Covariance) but consist of point (instantaneous) measurements conducted manually during the peak of the summer growing season (July) between 2021 and 2024.

This dataset contains leaf stable isotope (\u03b4\u00b9\u00b3C, \u03b4\u00b9\u2075N) and elemental composition (carbon and nitrogen content, C:N ratio) data for two dominant high-arctic dwarf shrubs, Dryas octopetala L. and Salix polaris Wahlenb. Samples were collected repeatedly during the peak of the growing season (July) from 2021 to 2024 at a continuous permafrost site in the Brogger Peninsula, near Ny-Alesund, Svalbard

This dataset contains stable isotope (\u03b4\u00b9\u00b3C, \u03b4\u00b9\u2075N) and elemental composition (carbon and nitrogen content, C:N ratio) data for soil samples. Samples were collected during the peak of the growing season (July) in 2021 and 2022 at the CCT continuous permafrost site in the Br\u00f8gger Peninsula, near Ny-\u00c5lesund, Svalbard. The dataset distinguishes between three soil categories: bare soil, soil collected beneath the high-arctic dwarf shrub Dryas octopetala L., and soil collected beneath Salix polaris Wahlenb.

Cyclone Sample collection Teams collect two weekly 24-hour samples Teams create metadata by scanning QR codes on cyclone sampler and sample vial with Lifeplan app Teams store samples until shipment in a freezer - Sample shipping to Sweden - Sample cleaning by Lifeplan - Sample shipping to Guelph - Sample sequencing - Transfer of sequencing data to Lifeplan - Bioinformatics - Species lists Through LIFEPLAN, we aim to establish the current state of biodiversity across the globe, and to use our insights for generating accurate predictions of its future state under future scenarios. In LIFEPLAN, we thus characterize biological diversity through a worldwide sampling program, and develop the bioinformatic and statistical approaches needed to make the most out of these data.

Contribution of Vegetation and Soil components to Carbon cycle in Arctic environment in relationship to climate change (VegSoCA). Measurements of soil respiration and 13C labelling on different species in the experimental field close to the CCTower using LiCOR LI-8100. Species were: Carex rupestris, Dryas octopetala, Salix polaris, Moss and bare soil. Dataset: Species type, date, soil water content, soil EC, soil temperature, CO2 flux.

Measurement of the concentration and turbulent flux of CO2 and CH4 at 15 m above sea level on the CCT.